A large volume tumor tissue extractor

Abstract

The present invention provides a large-volume tumor tissue extractor, which belongs to the field of medical devices. The extractor includes a collection bag with an opening, the opening is detachably mounted on a guide tube, and the collection bag is connected to the guide tube; the cutter of the tumor cutting and exporting unit is rotatably set in the guide tube and cuts the tumor tissue into pieces, the tumor cutting and exporting unit exports the chopped tumor tissue through the guide tube, the end face of the guide tube extending into the collection bag is the inlet end face, and the distance between the cutter of the tumor cutting and exporting unit and the inlet end face is equal to zero; the air inlet pipe connects the external air supply device and the collection bag, and the air inlet pipe ventilates the collection bag and expands the collection bag. The tumor cutting and exporting unit provided in the present application can cut a large volume of tumor tissue into pieces and export the cut tumor tissue into small pieces through the guide tube, so that the tumor tissue in the collection bag can be quickly taken out, shortening the operation time and simplifying the operation steps.

Description

Technical Field

[0001] The invention belongs to the technical field of medical instruments, and in particular relates to a large-volume tumor tissue extractor. Background Art

[0002] During the operation for adenomyoma, the adenomyoma tissue needs to be peeled off first, then the retriever is placed into the abdominal cavity, the collection bag is opened, and the adenomyoma tissue is placed into the collection bag, and then the collection bag is taken out from the abdominal cavity to remove the adenomyoma tissue.

[0003] Invention patent CN114191059B discloses "a retriever for gynecological abdominal surgery", which specifically discloses placing large pieces of excised material into a wire mesh, and setting a bag body outside the wire mesh, cutting the large pieces of excised material into small pieces by tightening the wire mesh, and collecting them through the bag body. First of all, adenomyoma is hard in texture, and it is difficult to cut it simply by pulling the wire mesh; secondly, the cut adenomyoma tissue still remains in the collection bag of the retriever (still in the abdominal cavity), and the bag mouth of the collection bag needs to be pulled out of the laparoscopic operation hole, and the medical staff manually takes it out piece by piece through the bag mouth of the collection bag. Since the diameter of the laparoscopic operation hole is only 1.5 cm, when taking out the larger adenomyoma tissue, the small pieces of adenomyoma tissue are more in number, and it will generally take 0.5-1 hour to completely remove them, which greatly increases the operation time.

[0004] In summary, the current extractor has the disadvantage that the adenomyosis tissue cut into small pieces still needs to be manually removed from the abdominal cavity piece by piece by medical staff, which increases the operation time. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a large-volume tumor tissue extractor to solve the problem that in the prior art, adenomyoma tissue cut into small pieces needs to be manually removed from the abdominal cavity piece by piece by medical staff, resulting in increased operation time.

[0006] In order to achieve the above-mentioned and other related purposes, the present invention provides a large-volume tumor tissue extractor, the extractor comprising:

[0007] Guide tube,

[0008] A collecting bag, wherein the collecting bag has an opening, the opening is detachably mounted on the guide tube, the collecting bag can move along the axis of the guide tube, and the collecting bag is in communication with the inside of the guide tube;

[0009] A tumor cutting and exporting unit, wherein a cutter of the tumor cutting and exporting unit is rotatably arranged in the guide tube, the cutter of the tumor cutting and exporting unit rotates and cuts the tumor tissue into pieces, and the cutter of the tumor cutting and exporting unit exports the cut tumor tissue through the guide tube, the end face of the guide tube extending into the collection bag is the inlet end face, and the distance between the cutter of the tumor cutting and exporting unit and the inlet end face is zero;

[0010] The collecting bag anti-cutting unit comprises at least one air inlet pipe, one end of which is connected to an external air supply device, and the other end of which is connected to the inside of the collecting bag. The air inlet pipe ventilates the inside of the collecting bag and expands the collecting bag. After the collecting bag is expanded, the cutting knife of the tumor cutting and exporting unit will not contact the inner wall of the collecting bag when chopping tumor tissue.

[0011] As an optional solution, a first sliding sleeve is slidably sleeved on the guide tube, the first sliding sleeve slides along the axis of the guide tube, and the opening is detachably mounted on the first sliding sleeve.

[0012] As an optional solution, the length of the first sliding sleeve is a;

[0013] The maximum length of the first sliding sleeve extending into the abdominal cavity is b, a>b.

[0014] As an optional solution, an annular limiting groove is opened on the outer wall of the first sliding sleeve, a flexible tube is fixed at the opening, a lace extends from one end of the flexible tube and extends from the other end of the flexible tube, and the lace is tied in the annular limiting groove.

[0015] As an optional solution, the first sliding sleeve has a second sliding sleeve outside the sliding sleeve, and the sliding axis of the second sliding sleeve is parallel to the axis of the first sliding sleeve;

[0016] The second sliding sleeve slides and passes over the annular limiting groove, thereby clamping the collecting bag between the outer wall of the first sliding sleeve and the inner wall of the second sliding sleeve.

[0017] As an optional solution, the tumor cutting and exporting unit includes a first rotating column, a spiral knife and a first minced meat outlet;

[0018] The first rotating column is rotatably installed in the guide tube, and the rotation axis of the first rotating column coincides with the axis of the guide tube;

[0019] The spiral cutter is fixedly mounted on the outer wall of the first rotating column, the spiral cutter is located in the guide tube, and the distance between the inlet end surface and the spiral cutter is zero;

[0020] The first minced meat outlet is opened through the side wall of the guide tube.

[0021] As an optional solution, the tumor cutting and exporting unit includes a second rotating column, a blade, and a second minced meat outlet;

[0022] The second rotating column is rotatably installed in the guide tube, and the rotation axis of the second rotating column coincides with the axis of the guide tube;

[0023] The blade is fixedly mounted on the end of the second rotating column, the blade is located in the guide tube, and the distance between the inlet end surface and the blade is zero;

[0024] The second minced meat outlet is opened through the side wall of the guide tube, and the second minced meat outlet is connected to the first negative pressure suction device.

[0025] As an optional solution, the collection bag anti-cutting unit also includes at least one first through groove, which is opened on the inner wall of the first sliding sleeve, and the two ends of the first through groove respectively pass through the top end surface of the first sliding sleeve and the bottom end surface of the first sliding sleeve, and the air inlet pipe is inserted into the first through groove and connected to the collection bag.

[0026] As an optional solution, the collection bag anti-cutting unit further includes at least one air outlet hose and at least one second through slot;

[0027] The air inlet end of the air inlet pipe is connected to the collection bag, and the air outlet end of the air outlet hose is connected to the second negative pressure suction device;

[0028] The second through groove is formed on the inner wall of the first sliding sleeve, and two ends of the second through groove respectively penetrate the top end surface and the bottom end surface of the first sliding sleeve, and the air outlet hose is inserted into the second through groove and communicated with the collection bag.

[0029] As an optional solution, the collection bag anti-cutting unit further comprises a rigid counterweight tube, the rigid counterweight tube is fixedly mounted on the air outlet end of the air outlet hose, and an end surface of the rigid counterweight tube is provided with an inclined surface;

[0030] A plurality of communication holes are formed through the side wall of the rigid counterweight tube.

[0031] As described above, the large-volume tumor tissue extractor proposed by the present invention has at least the following beneficial effects:

[0032] 1. The tumor cutting and exporting unit provided in the present application can cut up large tumor tissues and export the cut tumor tissues into small pieces through the guide tube, so that the tumor tissues in the collection bag can be quickly taken out, thus shortening the operation time and simplifying the operation steps;

[0033] 2. The present application can cut the hard uterine adenomyoma into small pieces by using the rotating cutter of the tumor cutting and exporting unit. At the same time, since the opening of the collection bag is connected to the guide tube, the tumor tissue will not splash around during cutting, thus avoiding the recurrence and metastasis of the tumor caused by the tumor tissue remaining in the abdominal cavity.

[0034] 3. The air inlet pipe provided in the present application can be used to ventilate the collecting bag installed on the guide tube to expand the collecting bag. Since the cutter of the tumor cutting and exporting unit is rotatably arranged in the guide tube, when the cutter of the tumor cutting and exporting unit rotates to cut large tumor tissue, it will not contact the inner wall of the collecting bag, which can reduce the material requirements of the collecting bag and prevent the large tumor tissue from splashing into the abdominal cavity when it is cut.

[0035] 4. The present application slides the second sliding sleeve onto the first sliding sleeve, and after placing the opening of the collection bag into the annular limiting groove, slides the second sliding sleeve, and can lock the collection bag between the second sliding sleeve and the first sliding sleeve, thereby preventing the collection bag from falling off;

[0036] 5. The present application slides the second sleeve onto the first sleeve and locks the collecting bag between the second sleeve and the first sleeve, thereby sealing the collecting bag and the guide tube. When air is ventilated into the collecting bag, air leakage can be avoided, and the expansion of the collecting bag can be better controlled.

[0037] 6. The present application arranges the first sliding sleeve on the guide tube for sliding. After placing a larger tumor tissue into the collection bag, the second sliding sleeve is slid and the collection bag is locked between the second sliding sleeve and the first sliding sleeve. When it is necessary to cut the larger tumor tissue, the first sliding sleeve is slid toward the side away from the inlet end face, and the larger tumor tissue in the collection bag is moved toward the guide tube, so as to facilitate the cutting of the larger tumor tissue. Meanwhile, the first sliding sleeve is continued to be slid, so that force can be applied to the larger tumor tissue, thereby cutting the larger tumor tissue more quickly.

[0038] 7. The rigid weighted tube provided in the present application can more conveniently insert the air outlet hose into the collection bag, and can suck out the blood generated when chopping up larger tumor tissues. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 The schematic diagram shows the structure of the collecting bag of the present invention when it is not unfolded;

[0040] Figure 2 Shown as the present invention Figure 1 The structural diagram at A in the middle;

[0041] Figure 3It is a schematic structural diagram of the first sliding sleeve, the first through groove, the second through groove, the air inlet pipe and the air outlet hose of the present invention;

[0042] Figure 4 It is a schematic diagram showing the structure of the air outlet hose and the rigid weight pipe of the present invention;

[0043] Figure 5 It shows a schematic structural diagram of the first rotating column, the spiral knife and the guide tube when the tumor cutting and leading-out unit of the present invention is a spiral knife;

[0044] Figure 6 It is a schematic diagram showing the structure of the first rotating column and the spiral cutter of the present invention;

[0045] Figure 7 It is a schematic structural diagram of the second rotating column, the blade and the guide tube when the tumor cutting and exporting unit of the present invention is a blade;

[0046] Figure 8 It is a schematic diagram showing the structure of the second rotating column and the blade of the present invention;

[0047] Fig. 9 Shown is a schematic diagram of the structure of the collecting bag of the present invention when it is unfolded;

[0048] Fig.10 Shown as the present invention Fig. 9 A local enlarged view of point B in FIG.

[0049] In the figure: 1. guide tube;

[0050] 21. Collection bag; 22. First sliding sleeve; 23. Annular limiting groove; 24. Flexible tube; 25. Lace; 26. Second sliding sleeve;

[0051] 31. first rotating column; 32. spiral blade; 33. first minced meat outlet; 34. second rotating column; 35. blade; 36. second minced meat outlet;

[0052] 41. air inlet pipe; 42. first through groove; 43. air outlet hose; 44. second through groove; 45. rigid counterweight pipe; 46. inclined surface; 47. connecting hole.

[0053] 5. Tumor tissue. DETAILED DESCRIPTION

[0054] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0055] See also Figures 1 to 10. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0056] The following embodiments are only for illustration purposes and can be combined with each other, and are not limited to the contents presented in the following single embodiments.

[0057] See also Figures 1 to 10 The present invention provides a large-volume tumor tissue extractor, the extractor comprising:

[0058] Guide tube 1,

[0059] A collecting bag 21, wherein the collecting bag 21 has an opening, and the opening is detachably mounted on the guide tube 1. The collecting bag 21 can move along the axis of the guide tube 1, and the collecting bag 21 is connected to the inside of the guide tube 1. The collecting bag 21 is a flexible transparent bag. When the collecting bag 21 is mounted on the guide tube 1, the guide tube 1 is inserted into the collecting bag 21, and the end surface of the guide tube 1 is in contact with the inner wall of the collecting bag 21. At this time, the collecting bag 21 is straightened, and is convenient for being placed in the abdominal cavity;

[0060] A tumor cutting and exporting unit, wherein a cutter of the tumor cutting and exporting unit is rotatably arranged in the guide tube 1, and the cutter of the tumor cutting and exporting unit rotates and cuts the tumor tissue 5 into pieces, and the cutter of the tumor cutting and exporting unit exports the cut tumor tissue through the guide tube 1, and the end face of the guide tube 1 extending into the collection bag 21 is the inlet end face, and the distance between the cutter of the tumor cutting and exporting unit and the inlet end face is zero;

[0061] The collecting bag anti-cutting unit comprises at least one air inlet pipe 41, one end of which is connected to an external air supply device, and the other end of which is connected to the inside of the collecting bag 21. The air inlet pipe 41 ventilates the collecting bag 21 and expands the collecting bag 21. The collecting bag 21 can be inflated through the air inlet pipe 41 to expand the collecting bag 21. After the collecting bag 21 expands, the cutting knife of the tumor cutting and exporting unit will not contact the inner wall of the collecting bag 21 when chopping the tumor tissue 5, thereby preventing the collecting bag 21 from being cut when a large tumor tissue is cut into small pieces, thereby preventing the tumor tissue 5 from leaking out of the collecting bag 21.

[0062] A heating device may also be provided on the external gas supply device to ensure the temperature of the gas filled into the collection bag 21 , thereby reducing the water vapor generated on the inner wall of the collection bag 21 .

[0063] The guide tube 1 equipped with the collecting bag 21 is extended into the abdominal cavity, and a larger tumor tissue is placed in the collecting bag 21, and then the collecting bag 21 is expanded through the air inlet pipe 41, and the cutter of the tumor cutting and exporting unit rotates to cut the larger tumor tissue into pieces and export the cut tumor tissue through the guide tube 1.

[0064] In this embodiment, please refer to Figures 1 to 10 The guide tube 1 is slidably sleeved with a first sleeve 22, and the outer diameter of the guide tube 1 can be set to be equal to the inner diameter of the first sleeve 22, and the first sleeve 22 is sleeved outside the guide tube 1. At this time, the inner wall of the first sleeve 22 contacts the outer wall of the guide tube 1, so that the first sleeve 22 can slide;

[0065] The first sliding sleeve 22 slides along the axis of the guide tube 1. The sliding between the guide tube 1 and the first sliding sleeve 22 can be achieved by setting the outer diameter of the guide tube 1 and the inner diameter of the first sliding sleeve 22 to be the same, and the first sliding sleeve 22 is sleeved outside the guide tube 1.

[0066] The opening is detachably mounted on the first sliding sleeve 22 .

[0067] When it is necessary to remove a larger tumor tissue from the abdominal cavity, after extending the guide tube 1 and the first sliding sleeve 22 into the abdominal cavity, remove the collecting bag 21 from the first sliding sleeve 22, put the larger tumor tissue into the collecting bag 21, and reinstall the opening on the first sliding sleeve 22, slide the first sliding sleeve 22 and drive the larger tumor tissue in the collecting bag 21 to move toward the guide tube 1, so as to facilitate the chopping of the larger tumor tissue. At the same time, when the cutter of the tumor cutting and exporting unit rotates to chop the larger tumor tissue, by sliding the first sliding sleeve 22, force can be applied to the larger tumor tissue, thereby increasing the force between the larger tumor tissue and the cutter of the tumor cutting and exporting unit, so as to facilitate the chopping of the larger tumor tissue.

[0068] In this embodiment, please refer to Figures 1 to 10 , the length of the first sliding sleeve 22 is a;

[0069] The maximum length of the first sliding sleeve 22 extending into the abdominal cavity is b, a>b.

[0070] By setting the first sliding sleeve 22 to have a certain length, it can be ensured that medical personnel can slide the first sliding sleeve 22 outside the abdominal cavity.

[0071] In this embodiment, please refer to Figures 1 to 10 The outer wall of the first sliding sleeve 22 is provided with an annular limiting groove 23, a flexible tube 24 is fixed at the opening, the opening is circular, and the diameter of the opening is larger than the outer diameter of the first sliding sleeve 22, so as to ensure that the first sliding sleeve 22 can be inserted into the collecting bag 21 through the opening, the flexible tube 24 is arranged in an annular manner at the opening, a tie 25 extends from one end of the flexible tube 24 and extends from the other end of the flexible tube 24, and the tie 25 is tied in the annular limiting groove 23;

[0072] The lace 25 is bound in the annular limiting groove 23 by winding the lace 25 several times in the annular limiting groove 23 , or the lace 25 is directly knotted in the annular limiting groove 23 .

[0073] By tying the tie 25 in the annular limiting groove 23, the collecting bag 21 can be installed on the first sliding sleeve 22. When it is necessary to put a larger tumor tissue into the collecting bag 21, untie the tie 25, remove the collecting bag 21 from the first sliding sleeve 22, open the opening and put the larger tumor tissue into the collecting bag 21, and tie the tie 25 in the annular limiting groove 23 again, so that the first sliding sleeve 22 can drive the larger tumor tissue to move. At the same time, the annular limiting groove 23 can ensure that the tie 25 will not fall off the first sliding sleeve 22.

[0074] In this embodiment, please refer to Figures 1 to 10 The first sliding sleeve 22 is provided with a second sliding sleeve 26, and the outer diameter of the first sliding sleeve 22 can be set to be equal to the inner diameter of the second sliding sleeve 26, and the second sliding sleeve 26 is placed outside the first sliding sleeve 22. At this time, the inner wall of the second sliding sleeve 26 contacts the outer wall of the first sliding sleeve 22, so that the second sliding sleeve 26 can slide, and the sliding axis of the second sliding sleeve 26 is parallel to the axis of the first sliding sleeve 22;

[0075] The second sliding sleeve 26 slides and passes over the annular limiting groove 23 , thereby pressing the collecting bag 21 between the outer wall of the first sliding sleeve 22 and the inner wall of the second sliding sleeve 26 .

[0076] An annular limiting groove 23 is formed on the outer wall of the second sliding sleeve 26. The annular limiting groove 23 divides the outer wall of the second sliding sleeve 26 into a first outer wall surface and a second outer wall surface. The first outer wall surface is close to the inlet end surface.

[0077] After the tie 25 is tied in the annular limiting groove 23 again, the second sleeve 26 slides on the second outer wall surface, so that the second sleeve 26 slides over the annular limiting groove 23, that is, the annular limiting groove 23 is located in the inner wall of the second sleeve 26, and the inner wall of the second sleeve 26 contacts the first outer wall surface. At this time, since the tie 25 is tied in the annular limiting groove 23 and the collecting bag 21 has a certain thickness, the second sleeve 26 will press part of the collecting bag 21 against the first outer wall surface, thereby preventing the collecting bag 21 from falling off.

[0078] In one embodiment of the tumor cutting derivation unit, see Figures 5 and 6 The tumor cutting and exporting unit includes a first rotating column 31, a spiral knife 32 and a first minced meat outlet 33;

[0079] The first rotating column 31 is rotatably installed in the guide tube 1, and the rotation axis of the first rotating column 31 coincides with the axis of the guide tube 1;

[0080] A first motor is fixedly installed outside the guide tube 1, and a motor shaft of the first motor is fixedly connected to the first rotating column 31. Starting the first motor can drive the first rotating column 31 to rotate;

[0081] The spiral cutter 32 is fixedly mounted on the outer wall of the first rotating column 31. The spiral cutter 32 is located in the guide tube 1. The outer diameter of the spiral cutter 32 can be equal to the inner diameter of the guide tube 1. The distance between the inlet end face and the spiral cutter 32 is zero. The end of the spiral cutter 32 is configured as a blade so that a large tumor tissue can be minced when the spiral cutter 32 rotates. At the same time, the spiral cutter 32 can also guide the minced tumor tissue from the inlet end face to the first minced meat outlet 33 when the spiral cutter 32 rotates.

[0082] The first minced meat outlet 33 is provided through the side wall of the guide tube 1. In order to facilitate the minced tumor tissue to be discharged from the first minced meat outlet 33, a first partition is provided on the first minced meat outlet 33 of the guide tube 1 at a side away from the inlet end face. When the minced tumor tissue is transmitted to the first minced meat outlet 33, it will move outward through the first minced meat outlet 33 due to the obstruction of the first partition, thereby leaving the guide tube 1.

[0083] The end surface of the first partition close to the inlet end surface is a first guide slope, which is used to more efficiently guide the chopped tumor tissue out of the first minced meat outlet 33. At the same time, a first minced meat collection bag can be fixedly installed on the first minced meat outlet 33 to collect the minced tumor tissue that is guided out.

[0084] When it is necessary to mince a larger volume of tumor tissue, the first motor is started to drive the first rotating column 31 to rotate, thereby driving the spiral knife 32 to rotate, and mincing the larger volume of tumor tissue close to the guide tube 1. At the same time, when the spiral knife 32 rotates, the minced tumor tissue can also be transported to the first mincing meat outlet 33, and then guided out of the guide tube 1 from the first mincing meat outlet 33.

[0085] In another embodiment of the tumor cutting derivation unit, see Figures 7 and 8 The tumor cutting and exporting unit includes a second rotating column 34, a blade 35 and a second minced meat outlet 36;

[0086] The second rotating column 34 is rotatably installed in the guide tube 1, and the rotation axis of the second rotating column 34 coincides with the axis of the guide tube 1;

[0087] A second motor is fixedly mounted outside the guide tube 1, and a motor shaft of the second motor is fixedly connected to the second rotating column 34. Starting the second motor can drive the second rotating column 34 to rotate;

[0088] The blade 35 is fixedly mounted on the end of the second rotating column 34, and the blade 35 is located in the guide tube 1, and the distance between the inlet end surface and the blade 35 is zero;

[0089] The second minced meat outlet 36 is provided through the side wall of the guide tube 1, and the second minced meat outlet 36 is connected to the first negative pressure suction device;

[0090] In order to facilitate the extraction of the chopped tumor tissue from the second minced meat outlet 36, a second partition is provided on the second minced meat outlet 36 of the guide tube 1 at a side away from the inlet end surface. When the chopped tumor tissue is transmitted to the second minced meat outlet 36, it will move outward through the second minced meat outlet 36 due to the obstruction of the second partition, thereby leaving the guide tube 1.

[0091] The end surface of the second partition close to the inlet end surface is a second guide slope, which is used to more efficiently suck out the chopped tumor tissue from the second minced meat outlet 36. At the same time, a second minced meat collection bag can be fixedly installed on the second minced meat outlet 36 to collect the sucked out chopped tumor tissue.

[0092] When it is necessary to mince larger tumor tissue, start the second motor to drive the second rotating column 34 to rotate, and then drive the blade 35 to rotate, so as to mince the larger tumor tissue close to the guide tube 1. At the same time, start the first negative pressure suction device to suck the minced tumor tissue toward the second mincing meat outlet 36 and suck it out of the guide tube 1 from the second mincing meat outlet 36.

[0093] In this embodiment, please refer to Figures 1 to 10 The collection bag anti-cutting unit also includes at least one first through groove 42, which is opened on the inner wall of the first sliding sleeve 22, and the two ends of the first through groove 42 respectively penetrate the top end surface of the first sliding sleeve 22 and the bottom end surface of the first sliding sleeve 22, and the air inlet pipe 41 is inserted into the first through groove 42 and connected to the collection bag 21.

[0094] Through the provided first through groove 42 , the air inlet pipe 41 can be inserted into the first through groove 42 and communicated with the collecting bag 21 , so that the collecting bag 21 can be inflated.

[0095] In this embodiment, please refer to Figures 1 to 10 , the collection bag anti-cutting unit further comprises at least one air outlet hose 43 and at least one second through slot 44;

[0096] The air inlet end of the air inlet pipe 41 is connected to the collection bag 21, and the air outlet end of the air outlet hose 43 is connected to the second negative pressure suction device;

[0097] The second through groove 44 is formed on the inner wall of the first sliding sleeve 22 , and two ends of the second through groove 44 respectively penetrate the top end surface and the bottom end surface of the first sliding sleeve 22 . The air outlet hose 43 is inserted into the second through groove 44 and communicated with the collecting bag 21 .

[0098] Through the second through groove 44 , the air outlet hose 43 can be inserted into the second through groove 44 and connected to the collection bag 21 , so that the gas in the collection bag 21 can be extracted and the gas in the collection bag 21 can be circulated.

[0099] In this embodiment, please refer to Figures 1 to 10 The collection bag anti-cutting unit further comprises a rigid weight tube 45, the rigid weight tube 45 is fixedly mounted on the outlet end of the outlet hose 43, and the end surface of the rigid weight tube 45 is provided with a slope 46;

[0100] A plurality of communication holes 47 are formed through the side wall of the rigid weight tube 45 .

[0101] By setting up the rigid counterweight tube 45, after the air outlet hose 43 is extended into the collection bag 21 through the second through groove 44, the air outlet hose 43 can be continued to be inserted so that the rigid counterweight tube 45 can fall to the lowest point of the collection bag 21, so that the blood generated by the cutting in the collection bag 21 can be sucked out, and at the same time, the second negative pressure suction device can be started to suck out the blood in the collection bag 21.

[0102] In order to facilitate the suction of the blood in the collection bag 21, in this embodiment, the outlet end of the air outlet hose 43 can be connected to the first connecting tube, the bottle mouth of the transfer bottle is sealed and screwed with a bottle cap, a first through hole is opened through the bottle cap, the first connecting tube is fixedly connected to the bottle cap, and the first connecting tube is connected to the first through hole, a second through hole is opened through the bottle cap, the second connecting tube is fixedly connected to the bottle cap, and the second connecting tube is connected to the second through hole, the suction end of the second negative pressure suction device is connected to the second connecting tube through the connecting tube, the second negative pressure suction device can be started to suck air into the transfer bottle through the connecting tube and the second connecting tube, and then the collection bag 21 is sucked through the first connecting tube and the air outlet hose 43, so as to achieve suction of the blood in the collection bag 21.

[0103] In this embodiment, the micro camera can also be inserted into the collection bag 21 through the first through slot 42 or the second through slot 44, so that medical staff can more clearly observe the shredding of larger tumor tissues.

[0104] To summarize, in the present invention, the collecting bag 21 is installed on the first sliding sleeve 22, and the guide tube 1 and the collecting bag 21 are extended into the abdominal cavity, the second sliding sleeve 26 is slid to expose the annular limiting groove 23, the collecting bag 21 is removed from the annular limiting groove 23, and the larger tumor tissue is placed in the collecting bag 21, and then the lace 25 is tied in the annular limiting groove 23, and the second sliding sleeve 26 is slid to lock the collecting bag 21 between the first sliding sleeve 22 and the second sliding sleeve 26, and the cutter of the tumor cutting and exporting unit is started to rotate, and the first sliding sleeve 22 is slid to move the larger tumor tissue toward the inlet end face of the guide tube 1. When the larger tumor tissue contacts the inlet end face, the larger tumor tissue will be chopped and exported through the guide tube 1.

[0105] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A large-volume tumor tissue extractor, characterized in that: The object retriever comprises: Guide tube, A collecting bag, wherein the collecting bag has an opening, the opening is detachably mounted on the guide tube, the collecting bag can move along the axis of the guide tube, and the collecting bag is in communication with the inside of the guide tube; A tumor cutting and exporting unit, wherein a cutter of the tumor cutting and exporting unit is rotatably arranged in the guide tube, the cutter of the tumor cutting and exporting unit rotates and cuts the tumor tissue into pieces, and the cutter of the tumor cutting and exporting unit exports the cut tumor tissue through the guide tube, the end face of the guide tube extending into the collection bag is the inlet end face, and the distance between the cutter of the tumor cutting and exporting unit and the inlet end face is zero; The collecting bag anti-cutting unit comprises at least one air inlet pipe, one end of which is connected to an external air supply device, and the other end of which is connected to the inside of the collecting bag, and the air inlet pipe ventilates the collecting bag and expands the collecting bag; after the collecting bag expands, the cutting knife of the tumor cutting and exporting unit will not contact the inner wall of the collecting bag when cutting the tumor tissue; The guide tube is slidably sleeved with a first sliding sleeve, the first sliding sleeve slides along the axis of the guide tube, and the opening is detachably mounted on the first sliding sleeve; An annular limiting groove is formed on the outer wall of the first sliding sleeve, a flexible tube is fixed at the opening, a lace extends from one end of the flexible tube and extends from the other end of the flexible tube, and the lace is tied in the annular limiting groove; The first sliding sleeve has a second sliding sleeve outside the sliding sleeve, and the sliding axis of the second sliding sleeve is parallel to the axis of the first sliding sleeve; The second sliding sleeve slides and passes over the annular limiting groove, thereby clamping the collection bag between the outer wall of the first sliding sleeve and the inner wall of the second sliding sleeve; The collection bag anti-cutting unit further comprises at least one first through groove, the first through groove is formed on the inner wall of the first sliding sleeve, two ends of the first through groove respectively penetrate the top end surface and the bottom end surface of the first sliding sleeve, the air inlet pipe is inserted into the first through groove and communicated with the collection bag; The collection bag anti-cutting unit further comprises at least one air outlet hose and at least one second through slot; The air inlet end of the air inlet pipe is connected to the collection bag, and the air outlet end of the air outlet hose is connected to the second negative pressure suction device; The second through groove is formed on the inner wall of the first sliding sleeve, and two ends of the second through groove respectively penetrate the top end surface and the bottom end surface of the first sliding sleeve, and the air outlet hose is inserted into the second through groove and communicated with the collection bag; The collection bag anti-cutting unit further comprises a rigid counterweight tube, which is fixedly mounted on the air outlet end of the air outlet hose, and an end surface of the rigid counterweight tube is provided with an inclined surface; The side wall of the rigid weight tube is provided with a plurality of communication holes; The external air supply device is provided with a heating device.

2. A large-volume tumor tissue extractor according to claim 1, characterized in that: The length of the first sliding sleeve is a; The maximum length of the first sliding sleeve extending into the abdominal cavity is b, a>b.

3. The large-volume tumor tissue extractor according to claim 1, characterized in that: The tumor cutting and exporting unit comprises a first rotating column, a spiral knife and a first minced meat outlet; The first rotating column is rotatably installed in the guide tube, and the rotation axis of the first rotating column coincides with the axis of the guide tube; The spiral cutter is fixedly mounted on the outer wall of the first rotating column, the spiral cutter is located in the guide tube, and the distance between the inlet end surface and the spiral cutter is zero; The first minced meat outlet is opened through the side wall of the guide tube.

4. The large-volume tumor tissue extractor according to claim 1, characterized in that: The tumor cutting and exporting unit comprises a second rotating column, a blade and a second minced meat outlet; The second rotating column is rotatably installed in the guide tube, and the rotation axis of the second rotating column coincides with the axis of the guide tube; The blade is fixedly mounted on the end of the second rotating column, the blade is located in the guide tube, and the distance between the inlet end surface and the blade is zero; The second minced meat outlet is opened through the side wall of the guide tube, and the second minced meat outlet is connected to the first negative pressure suction device.

Images