Specimen taking-out device under laparoscope

Abstract

The specimen taking-out device comprises a pipe sleeve, a push-out plate is connected into the pipe sleeve in a sliding mode, an object taking unit is fixed to the push-out plate, and when the push-out plate and the pipe sleeve move relatively, the push-out plate drives the object taking unit to stretch out of the pipe sleeve; the object taking unit comprises an object taking bag and an opening part used for fixing a bag opening of the object taking bag. An angle adjusting assembly is fixed to the push-out plate and connected with the opening part, and the angle adjusting assembly is used for changing the opening degree of the opening part. The utility model solves the problems that the supporting part is unsmooth to open, and the supporting force of the supporting part is insufficient and is easy to deform.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field more specifically, relate to a specimen taking out device under laparoscope. BACKGROUND

[0002] At present, along with the continuous development of science and technology, the medicine has made rapid progress, and the operation mode develops from the traditional open operation to the endoscope operation, the laparoscopic operation has the characteristics such as small trauma, operation fine, less bleeding, quick recovery. The tumor or lesion tissue cut by laparoscopic operation needs to be stored and taken out during the laparoscopic operation. The specimen taking out device is used when taking out the specimen, it includes specimen taking out bag, the specimen taking out bag is used for the collection of specimen, and the bag mouth of specimen taking out bag is mainly tightened or opened by steel wire. The steel wire has certain tension, but the strength is obviously insufficient, for example, when opening the specimen taking out device, the steel wire ring can not be well bounced to bounce out the specimen taking out bag, which affects the subsequent operation, when loading larger tissue, the steel wire ring is too soft to support, the steel wire ring mouth is easy to deform, which is not conducive to the collection of specimen, increases the difficulty of specimen collection and taking out, and the specimen has to be collected and taken out for several times. The above leads to low efficiency and great difficulty of specimen collection and taking out, increases the surgical trauma, and prolongs the operation time.

[0003] Therefore, to provide a specimen taking out device under laparoscope, improve the success rate of opening of the supporting part, improve the supporting force of the bag mouth supporting part of the specimen taking out bag, which is a technical problem urgently to be solved in the field. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a specimen taking out device under laparoscope, and solves the problems that the supporting part is not smoothly opened and the supporting part is easy to deform due to insufficient supporting force.

[0005] The application provides a specimen taking out device under laparoscope, which comprises a sleeve, a push-out plate is slidably connected in the sleeve, a taking unit is fixed on the push-out plate, and the push-out plate drives the taking unit to extend out of the sleeve when the push-out plate moves relative to the sleeve.

[0006] The taking unit comprises a taking bag and an opening part for fixing the bag mouth of the taking bag.

[0007] An angle adjusting assembly is fixed on the push-out plate, the angle adjusting assembly is connected with the opening part, and the angle adjusting assembly is used for changing the opening degree of the opening part.

[0008] Optionally, the expansion part comprises two expansion A parts for fixing the edge shape of the object bag and an expansion B part for forming the edge shape, the fixed end of the expansion A part is connected with the angle adjusting assembly, the angle adjusting assembly is used for changing the opening degree of the expansion A part, and the two ends of the expansion B part are respectively connected with the connecting ends of the two expansion A parts.

[0009] Optionally, the connecting end of the expansion A part is fixed with a protection member.

[0010] Optionally, the angle adjusting assembly comprises a push rod, a moving shaft, a fixed shaft and a telescopic assembly connected between the moving shaft and the fixed shaft, the push rod is slidably connected with the push-out part of the push-out plate, the top end of the push rod is fixedly connected with the moving shaft, the moving shaft is slidably connected with the extension part of the push-out plate, and the telescopic assembly is connected with the fixed end of the expansion A part.

[0011] Optionally, the telescopic assembly comprises two groups of first connecting rods and second connecting rods, one end of the first connecting rod is connected with the fixed end of the expansion A part and is hingedly connected on the fixed shaft, the other end of the first connecting rod is hingedly connected with one end of the second connecting rod, and the other end of the second connecting rod is hingedly connected on the moving shaft.

[0012] Optionally, the extension part of the push-out plate is provided with a first sliding groove penetrating through the extension part of the push-out plate, the moving shaft moves relatively in the first sliding groove, the push-out part of the push-out plate is provided with a second sliding groove, the push rod moves relatively in the second sliding groove, and the inner wall of the pipe sleeve is symmetrically provided with a third sliding groove, which is used for limiting the moving track and displacement distance of the push-out plate.

[0013] Optionally, the pipe sleeve is fixed with a first handle, the push-out plate is fixed with a second handle, the push rod is fixed with a push hand, and the push hand is fixed with a hook.

[0014] Optionally, the bag opening of the object bag is fixedly connected with a fixing assembly, and the fixing assembly is used for fixing the object bag on the expansion A part.

[0015] Optionally, the fixing assembly comprises a fixing rope, the fixing rope is used for preventing the bag opening of the object bag from sliding off the expansion A part, one end of the fixing rope is fixed on the bag opening of the object bag located at the fixed end of the expansion A part, the other end of the fixing rope is connected with an extension line, the extension line is fixed with a rope sleeve at intervals, and the rope sleeve is detachably connected with the hook.

[0016] Optionally, the fixed shaft and the moving shaft are both fixed with a fixing member, a first through hole is formed in the fixing member on the top end of the fixed shaft and the moving shaft, and the extension line is movable in the first through hole.

[0017] Compared with the prior art, the specimen taking-out device under the laparoscope provided by the utility model realizes at least the following beneficial effects:

[0018] The specimen taking-out device under the laparoscope provided by the utility model, by pushing the push-out plate, the push-out plate and the sleeve move relatively, the taking-out unit fixed on the push-out plate is pushed out of the sleeve, the problem of the springing of the steel ring of the existing specimen taking-out bag is solved; the opening part is used for opening the bag opening of the taking-out bag; the angle adjusting assembly fixed on the push-out plate is connected with the opening part, the angle adjusting assembly is used for changing the opening degree of the opening A part, the opening A part has strong supporting force, so that the deformation is prevented when larger tissues are loaded; after the tissues are taken out, the angle adjusting assembly is used for closing the opened opening A part, the push-out plate is pulled back, the opening A part is separated from the bag opening of the taking-out bag, the push-out plate is continuously pulled back, the opening B part moves with the opening A part, and the bag opening of the taking-out bag is tightened.

[0019] Of course, any product implementing the utility model does not necessarily need to achieve all the technical effects mentioned above.

[0020] Other features and advantages of the utility model will become clear through the following detailed description of exemplary embodiments of the utility model with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings incorporated in and forming a part of the specification illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the utility model.

[0022] Figure 1 is a plan view of the taking-out bag of the specimen taking-out device under the laparoscope provided by the utility model in an open state;

[0023] Figure 2 is a structural schematic view of the sleeve provided by the utility model;

[0024] Figure 3 is a sectional view of the sleeve provided by the utility model;

[0025] Figure 4 is a structural schematic view of the push-out plate provided by the utility model;

[0026] Figure 5 is a left view of the push-out plate provided by the utility model;

[0027] Figure 6 is a sectional view of the push-out plate and the angle adjusting assembly provided by the utility model;

[0028] Figure 7is the structural schematic view of the specimen taking-out device of the embodiment one provided by the utility model when the opening part is pushed out;

[0029] Figure 8 is the structural schematic view of the specimen taking-out device of the embodiment one provided by the utility model when the opening part is pushed out;

[0030] Figure 9 is the structural schematic view of the specimen taking-out device of the embodiment one provided by the utility model when the opening part is pushed out;

[0031] Figure 10 is the top view of the specimen taking-out device of the embodiment one provided by the utility model when the opening part is pushed out and opened;

[0032] Figure 11 is the A place enlarged view of the utility model provides Figure 10 ;

[0033] Figure 12 is the structural schematic view of the push rod provided by the utility model;

[0034] Figure 13 is the structural schematic view of the taking-out bag and the fixed assembly provided by the utility model;

[0035] Figure 14 is the top view of another telescopic assembly under the contraction state provided by the utility model;

[0036] Figure 15 is the top view of another telescopic assembly under the expansion state provided by the utility model;

[0037] Wherein, 10, sleeve, 11, third sliding groove, 12, first handle, 20, push-out plate, 21, first sliding slot, 22, second sliding groove, 23, second handle, 24, extension, 25, push-out part, 30, taking-out unit, 31, taking-out bag, 32, opening A part, 33, opening B part, 34, anti-injury piece, 40, angle adjusting assembly, 41, push rod, 411, push hand, 412, hook, 42, moving shaft, 43, fixed shaft, 44, first connecting rod, 45, second connecting rod, 46, fixed piece, 47, first through hole, 48, second through hole, 50, fixed assembly, 51, fixed rope, 52, extension line, 53, rope sleeve. DETAILED DESCRIPTION

[0038] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. Note that the relative arrangement of the components and steps, numerical expressions, and numerical values set forth in these embodiments are not limiting to the scope of the present application unless otherwise specifically stated.

[0039] The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the present application or its application or uses.

[0040] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in any detail in order to avoid obscuring the present application.

[0041] In all of the compositions and methods shown and discussed herein, any specific values should be interpreted as merely exemplary, and are not intended to be limiting. Thus, other compositions and methods of the exemplary embodiments can have different values.

[0042] It should be noted that like reference numerals and letters refer to like items throughout the several views of the drawings, and that discussion of one item in several views implies discussion of the same item in other views.

[0043] Referring now to the Figures 1-13 , the present application provides a specimen taking device under laparoscope. In an alternative embodiment, the present application comprises a sleeve 10, a push plate 20 is slidably connected in the sleeve 10, a taking unit 30 is fixed on the push plate 20, when the push plate 20 moves relative to the sleeve 10, the push plate 20 drives the taking unit 30 to extend out of the sleeve 10; the taking unit 30 comprises a taking bag 31 and a strutting part for fixing the bag opening of the taking bag 31; an angle adjusting assembly 40 is fixed on the push plate 20, the angle adjusting assembly 40 is connected with the strutting part, and the angle adjusting assembly 40 is used for changing the opening degree of the strutting part. Specifically, referring to Figures 2-3 , a third sliding groove 11 is symmetrically formed on the inner wall of the sleeve 10, the third sliding groove 11 is used for limiting the moving track and displacement distance of the push plate 20; referring to Figure 11 , the strutting part comprises two strutting A parts 32 for fixing the edge shape of the taking bag 31 and a strutting B part 33 for forming the edge shape, the fixed end of the strutting A part 32 is connected with the angle adjusting assembly 40, the angle adjusting assembly 40 is used for changing the opening degree of the strutting A part 32, and the two ends of the strutting B part 33 are respectively connected with the connecting ends of the two strutting A parts 32.

[0044] It can be understood that the push-out plate 20 is pushed to move in the third sliding groove 11, the push-out plate 20 moves relative to the tube sleeve 10, the taking unit 30 fixed on the push-out plate 20 is pushed out of the tube sleeve 10, and the problem of the existing specimen taking bag steel ring is solved. The opening part is used for opening the bag opening of the taking bag 31. The angle adjusting assembly 40 fixed on the push-out plate 20 is connected with the opening part, the angle adjusting assembly 40 is used for changing the opening degree of the opening A part 32, the opening of the opening A part 32 makes the bag opening of the taking bag 31 open, the opening of the bag opening of the taking bag 31 is completed, subsequent filling of the tissue object is facilitated, the opening A part 32 has strong supporting force, and deformation of the bag opening of the taking bag 31 is prevented when larger tissue objects are filled. The part of the bag opening of the taking bag 31 between the connection ends of the two opening A parts 32 is not specifically supported and is only opened by the opening force of the two opening A parts 32. When the tissue object is filled, deformation is prone to occur. Therefore, the opening B part 33 used for forming an edge shape is designed. After the opening A part 32 is opened, the flexible opening B part 33 without supporting force is also tightened along with the opening of the two opening A parts 32. The tightened opening B part 33 has certain supporting force, assists the opening A part 32 to further complete the opening of the bag opening of the taking bag 31, and the stability of the opening formed by the opening of the bag opening of the taking bag 31 is improved. After the tissue object is taken, the angle adjusting assembly 40 is used to close the two opening A parts 32 and return to the original state. The push-out plate 20 is pulled back, the opening A part 32 returns to the tube sleeve 10, the taking bag 31 filled with the tissue object is separated from the opening A part 32 and remains outside the tube sleeve 10 due to its own gravity, the push-out plate 20 is continuously pulled back, the opening B part 33 retreats into the tube along with the opening A part 32, the opening B part 33 moves in the bag opening of the taking bag 31 and changes position, and the opening B part 33 starts to slowly tighten the bag opening of the taking bag 31 along with the gradual retreat of the opening A part 32.

[0045] It should be noted that, with reference to Figure 11 , the opening A part 32 can be made of a hard material, so that the opening A part 32 has strong supporting property. The opening B part 33 can be made of a flexible material, for example, a sterile string. A second through hole 48 can be formed at the connection end of the opening A part 32, and the two ends of the opening B part 33 pass through the second through hole 48 and are connected to the connection end of the opening A part 32.

[0046] In order to prevent the fixed end of the opening A part 32 from puncturing the taking bag 31 and then hurting or hurting the patient, in an alternative embodiment, with reference to Figure 11 , the connection end of the opening A part 32 is fixed with a protection piece 34. Specifically, the protection piece 34 is made of the same material as the opening A part 32 and can be a smooth protrusion, which is smoothly connected with the end of the opening A part 32.

[0047] Referring to Figure 6 , Figures 11-12 In an alternative embodiment, the angle adjusting assembly 40 comprises a push rod 41, a moving shaft 42, a fixed shaft 43, and a telescopic assembly connected between the moving shaft 42 and the fixed shaft 43; the push rod 41 is in sliding connection with the push-out portion 25 of the push-out plate 20, the top end of the push rod 41 is in fixed connection with the moving shaft 42, the moving shaft 42 is in sliding connection with the extension portion 24 of the push-out plate 20, and the telescopic assembly is connected with the fixed end of the opening A portion 32. The distance between the moving shaft 42 and the fixed shaft 43 gradually shortens, and the telescopic assembly gradually changes from a contracted state to a relaxed state, as shown in Figures 9-10 When the telescopic assembly is in the relaxed state, the opening A portion 32 fixed with the telescopic assembly also opens at a certain angle with the relaxation of the telescopic assembly. The telescopic assembly comprises two groups of first connecting rods 44 and second connecting rods 45, one end of the first connecting rod 44 is connected with the fixed end of the opening A portion 32 and is hinged on the fixed shaft 43, the other end of the first connecting rod 44 is hinged with one end of the second connecting rod 45, and the other end of the second connecting rod 45 is hinged on the moving shaft 42.

[0048] It should be noted that the shapes of the first connecting rod 44 and the second connecting rod 45 are not limited to one shape, and can be replaced by the shapes shown in Figures 14-15 , Figures 14-15 The first connecting rod 44 and the second connecting rod 45 shown in

[0049] In addition, as shown in Figures 2-6 , Figure 12 In order to ensure the stable movement of the angle adjusting assembly 40, a first sliding groove 21 is formed on the extension portion 24 of the push-out plate 20, which penetrates the extension portion 24 of the push-out plate 20, so that the moving shaft 42 moves relatively in the first sliding groove 21; a second sliding groove 22 is formed on the push-out portion 25 of the push-out plate 20, so that the push rod 41 moves relatively in the second sliding groove 22; wherein the first sliding groove 21 is used to limit the movement trajectory of the moving shaft 42, and the second sliding groove 22 is used to limit the movement trajectory of the push rod 41. In order to facilitate use, a first handle 12 is fixed on the tube sleeve 10; a second handle 23 is fixed on the push-out plate 20; a push hand 411 is fixed on the push rod 41, and a hook 412 is fixed on the push hand 411.

[0050] It can be understood that, with reference to Figures 7-8, push the push plate 20, the push plate 20 moves in the third chute 11, the push plate 20 and the pipe sleeve 10 move relative to each other, and the picking unit 30 fixed on the push plate 20 is pushed out of the pipe sleeve 10; refer to Figures 8-9 , continue to push the push plate, when the second handle 23 fixed on the push plate 20 abuts against the first handle 12 fixed on the pipe sleeve 10, the extension 24 of the push plate 20 is pushed out of the pipe sleeve 10; Figures 9-10 , pushes the push handle 411 of the push rod 41, and the push rod 41 moves stably along the second sliding groove 22. When the push handle 411 of the push rod 41 abuts against the pushing portion 25 of the pushing plate 20, the push handle 411 of the push rod 41 also happens to abut against the first handle 12 fixed on the pipe sleeve 10. During this process, the moving shaft 42 fixedly connected to the push rod 41 moves relatively in the first sliding groove 21, and the thrust of the push rod 41 continuously acts on the moving shaft 42. The moving shaft 42 moves forward relative to the pushing portion 25 of the pushing plate 20, and the second connecting rod 45 hinged with the moving shaft 42 is forced to move in position, thereby driving the first connecting rod 44 hinged with the second connecting rod 45 to move in position. The first connecting rod 44 and the second connecting rod 45, which were originally hinged on the same axis, change their positions and become as shown in the figure. Figure 10 In the illustrated state, the two first connecting rods 44 hinged on the fixed shaft 43 are opened at a certain angle, causing the opening of the retrieval bag 31 to open. The opening of the retrieval bag 31 is then opened, and the opening of the retrieval bag 31 is opened. The opening of the retrieval bag 31 is then opened, and the opening of the retrieval bag 31 is then opened. The opening of the retrieval bag 31 is then opened, and tissue is collected and filled. After the opening of the retrieval bag 31 is opened, the flexible opening of the retrieval bag 31 is tightened. The tightened opening of the retrieval bag 31 provides a certain amount of support, assisting the expanded opening of the retrieval bag 31.

[0051] After collecting and filling the tissue, refer to Figures 10-9 , pull back the push rod 41, the pulling force of the push rod 41 continues to act on the moving shaft 42, and the moving shaft 42 moves backward relative to the pushing portion 25 of the pushing plate 20, so that the first pull rod and the second pull rod return to Figure 9 The state of the expanded A portion 32 also returns to its original state; Figures 9-8 , pull back the push plate 20, the extension portion 24 of the push plate 20 is pulled back into the sleeve 10; Figures 9-8 , continue to pull back the push-out plate 20, and the expanded part A 32 returns to the tube sleeve 10. Due to its own gravity, the bag opening of the retrieval bag 31 containing the tissue is separated from the expanded part A 32 and remains outside the tube sleeve 10; continue to pull back the push-out plate 20, and the expanded part B 33 retreats into the tube as the expanded part A 32 does, and the expanded part B 33 changes its position in the bag opening of the retrieval bag 31. As the expanded part A 32 gradually retreats, the expanded part B 33 begins to slowly tighten the bag opening of the retrieval bag 31.

[0052] In order to prevent the bag opening 31 from being separated from the open A portion 32 during the process of taking tissue, Figure 6 、 Figures 12-13 In an optional embodiment, a fixing assembly 50 is fixedly connected to the opening of the retrieval bag 31. The fixing assembly 50 is used to fix the retrieval bag 31 to the expanded portion A 32. Specifically, the fixing assembly 50 includes a fixing rope 51. The fixing rope 51 is used to prevent the opening of the retrieval bag 31 from sliding off the expanded portion A 32. One end of the fixing rope 51 is fixed to the opening of the retrieval bag 31 at the fixed end of the expanded portion A 32. The other end of the fixing rope 51 is connected to an extension line 52. Rope loops 53 are fixed to the extension line 52 at intervals. The rope loops 53 are detachably connected to the hook 412.

[0053] It can be understood that when the specimen retrieval device is not in use, the rope loop 53 on the extension line 52 away from the fixed end of the expanded part A 32 is hung on the hook 412 to prevent the bag opening of the retrieval bag 31 from detaching from the expanded part A 32; the push rod 41 pushes the movable shaft 42 to move until the two expanded parts A 32 are opened to a certain angle. At this time, the straight-line distance between the hook 412 and the fixed end of the expanded part A 32 becomes shorter, and the rope loop 53 on the extension line 52 close to the fixed end of the expanded part A 32 is hung on the hook 412 to prevent the bag opening of the retrieval bag 31 from detaching from the expanded part A 32 during the process of taking tissue. After the retrieval bag 31 has taken out the tissue, the rope loop 53 near the fixed end of the expanded part A 32 on the extension line 52 is removed from the hook 412, and the push-out plate 20 is pulled back. The protruding portion 24 of the push-out plate 20 is pulled back into the tube sleeve 10, and the push-out plate 20 is continued to be pulled back, and the expanded part A 32 is returned to the tube sleeve 10. The retrieval bag 31 containing the tissue is separated from the expanded part A 32 due to its own gravity and remains outside the tube sleeve 10. The fixed rope 51, the extension rope and the rope loop 53 also move with the movement of the bag mouth of the retrieval bag 31; the push-out plate 20 is continued to be pulled back, and the expanded part B 33 retreats into the tube along with the expanded part A 32. The expanded part B 33 changes its position in the bag mouth of the retrieval bag 31. As the expanded part A 32 gradually retreats, the expanded part B 33 begins to slowly tighten the bag mouth of the retrieval bag 31, and the bag is ready for use.

[0054] It should be noted that both the extension cord and the knot can pass through the first through hole 47. After the retrieval bag 31 has taken out the tissue, the rope loop 53 on the extension line 52 near the fixed end of the expanded A part 32 is removed from the hook 412. The bag opening of the retrieval bag 31 is separated from the expanded A part 32 and remains outside the tube sleeve 10. When the bag opening of the retrieval bag 31 is tightened, the extension cord and the knot will not be stuck on the first through hole 47, and the bag opening of the retrieval bag 31 is pulled so that the bag opening of the retrieval bag 31 is connected to the expanded A part 32.

[0055] In order to prevent the first connecting rod 44 from being separated from the fixed shaft 43 and the second connecting rod 45 from being separated from the movable shaft 42; in order to prevent the extension line 52 from being entangled with the telescopic component and affecting the contraction and expansion of the telescopic component, refer to Figure 6 、Figure 13 In an optional embodiment, a fixing member 46 is fixed on the fixed shaft 43 and the movable shaft 42, and a first through hole 47 is opened on the fixing member 46 at the top of the fixed shaft 43 and the movable shaft 42, and the extension line 52 can move in the first through hole 47.

[0056] It is understood that the fixing members 46 fixed to the fixed shaft 43 and the movable shaft 42 prevent the first connecting rod 44, which is hinged on the fixed shaft 43, from detaching, and the second connecting rod 45, which is hinged on the movable shaft 42, from detaching; the hinge between the first connecting rod 44 and the second connecting rod 45 is also a fixed hinge. To prevent the extension cable 52 from becoming entangled with the telescopic assembly and affecting its contraction and expansion, the extension cable 52 passes through the first through-hole 47 in the fixing members 46 at the top of the fixed shaft 43 and the movable shaft 42, avoiding contact with the hinged joints between the fixed shaft 43, the movable shaft 42, and the first connecting rod 44 and the second connecting rod 45, thereby preventing the extension cable 52 from becoming entangled in the angle adjustment assembly 40.

[0057] When used, combine Figures 11-13 , refer to Figures 7-8 , push the ejection plate 20, the ejection plate 20 moves in the third chute 11, the ejection plate 20 and the tube sleeve 10 move relative to each other, and the picking unit 30 fixed on the ejection plate 20 is pushed out of the tube sleeve 10; at this time, the rope loop 53 on the extension line 52 away from the fixed end of the expanded A part 32 is hung on the hook 412 to prevent the bag opening of the picking bag 31 from being separated from the expanded A part 32; refer to Figures 8-9 , continue to push the push plate, when the second handle 23 fixed on the push plate 20 abuts against the first handle 12 fixed on the pipe sleeve 10, the extension portion 24 of the push plate 20 is pushed out of the pipe sleeve 10; at this time, the rope loop 53 on the extension line 52 away from the fixed end of the expanded A part 32 is hung on the hook 412, preventing the bag opening of the retrieval bag 31 from being separated from the expanded A part 32; refer to Figures 9-10 , pushes the push handle 411 of the push rod 41, and the push rod 41 moves stably along the second sliding groove 22. When the push handle 411 of the push rod 41 abuts against the pushing portion 25 of the pushing plate 20, the push handle 411 of the push rod 41 also happens to abut against the first handle 12 fixed on the pipe sleeve 10. During this process, the moving shaft 42 fixedly connected to the push rod 41 moves relatively in the first sliding groove 21, and the thrust of the push rod 41 continuously acts on the moving shaft 42. The moving shaft 42 moves forward relative to the pushing portion 25 of the pushing plate 20, and the second connecting rod 45 hinged with the moving shaft 42 is forced to move in position, thereby driving the first connecting rod 44 hinged with the second connecting rod 45 to move in position. The first connecting rod 44 and the second connecting rod 45, which were originally hinged on the same axis, change their positions and become as shown in the figure. Figure 10The state shown, because the two first connecting rods 44 hinged on the fixed shaft 43 open a certain angle, in turn, the two opening A parts 32 open a certain angle, the flexible opening B part 33 without support force is also tightened with the opening of the two opening A parts 32, the opening A part 32 and the tightened opening B part 33 make the bag opening of the taking bag 31 open; the linear distance between the hook 412 and the fixed end of the opening A part 32 is shortened, the rope sleeve 53 on the extension line 52 close to the fixed end of the opening A part 32 is hung on the hook 412, preventing the bag opening of the taking bag 31 from separating from the opening A part 32 in the process of taking the tissue material. After the bag opening of the taking bag 31 is opened, the tissue material is collected and filled.

[0058] After the tissue material is collected and filled, referring to Figures 10-9 , the push rod 41 is pulled back, the pulling force of the push rod 41 continuously acts on the moving shaft 42, the moving shaft 42 moves backward relative to the push-out part 25 of the push-out plate 20, so that the first pull rod and the second pull rod return to Figure 9 The state, the opening A part 32 also returns to the original state; referring to Figures 9-8 , the rope sleeve 53 on the extension line 52 close to the fixed end of the opening A part 32 is taken off from the hook 412, the push-out plate 20 is pulled back, and the extension part 24 of the push-out plate 20 is pulled back into the pipe sleeve 10; referring to Figures 9-8 , the push-out plate 20 is continuously pulled back, the opening A part 32 returns to the pipe sleeve 10, the taking bag 31 filled with the tissue material is left outside the pipe sleeve 10 due to its own gravity, the bag opening of the taking bag 31 separates from the opening A part 32, and the fixed rope 51, the extension rope and the rope sleeve 53 also move with the movement of the bag opening of the taking bag 31; the push-out plate 20 is continuously pulled back, the opening B part 33 retreats into the pipe with the opening A part 32, the opening B part 33 changes position in the bag opening of the taking bag 31, and the opening B part 33 starts to slowly tighten the bag opening of the taking bag 31 with the gradual retreat of the opening A part 32.

[0059] Although some specific embodiments of the present application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A laparoscopic specimen removal device, characterized in that: It includes a pipe sleeve, a push plate is slidably connected to the pipe sleeve, a picking unit is fixed on the push plate, and when the push plate and the pipe sleeve move relative to each other, the push plate drives the picking unit to extend out of the pipe sleeve; The taking unit includes a taking bag and a support portion for fixing the bag opening; An angle adjustment component is fixed on the pushing plate, and the angle adjustment component is connected to the opening portion. The angle adjustment component is used to change the opening degree of the opening portion.

2. The laparoscopic specimen removal device according to claim 1, characterized in that: The expansion part includes two expansion A parts for fixing the edge shape of the bag and an expansion B part for forming the edge shape. The fixed end of the expansion A part is connected to the angle adjustment component, and the angle adjustment component is used to change the opening degree of the expansion A part. The two ends of the expansion B part are respectively connected to the connecting ends of the two expansion A parts.

3. The laparoscopic specimen removal device according to claim 2, characterized in that: An anti-injury piece is fixed to the connecting end of the expanded A portion.

4. The laparoscopic specimen removal device according to claim 2, characterized in that: The angle adjustment assembly includes a push rod, a movable shaft, a fixed shaft and a telescopic assembly connected between the movable shaft and the fixed shaft; the push rod is slidably connected to the ejection part of the ejection plate, the top end of the push rod is fixedly connected to the movable shaft, the movable shaft is slidably connected to the protruding part of the ejection plate, and the telescopic assembly is connected to the fixed end of the support A part.

5. The laparoscopic specimen removal device according to claim 4, characterized in that: The telescopic assembly includes two groups of first connecting rods and second connecting rods, one end of the first connecting rod is connected to the fixed end of the support A part and is hinged on the fixed shaft, the other end of the first connecting rod is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged on the movable shaft.

6. The laparoscopic specimen removal device according to claim 4, characterized in that: A first sliding groove is provided on the protruding portion of the ejection plate, which passes through the protruding portion of the ejection plate, and the movable shaft moves relatively in the first sliding groove; a second sliding groove is provided on the ejection portion of the ejection plate, and the push rod moves relatively in the second sliding groove; a third sliding groove is symmetrically provided on the inner wall of the pipe sleeve, and the third sliding groove is used to limit the moving trajectory and displacement distance of the ejection plate.

7. The laparoscopic specimen removal device according to claim 4, characterized in that: A first handle is fixed on the pipe sleeve; a second handle is fixed on the pushing plate; a push handle is fixed on the push rod, and a hook is fixed on the push handle.

8. The laparoscopic specimen removal device according to claim 7, characterized in that: A fixing assembly is fixedly connected to the bag opening of the taking bag, and the fixing assembly is used to fix the taking bag on the expanded A part.

9. The laparoscopic specimen removal device according to claim 8, characterized in that: The fixing assembly includes a fixing rope, which is used to prevent the bag opening of the retrieval bag from sliding off the expanded A part. One end of the fixing rope is fixed to the bag opening of the retrieval bag at the fixed end of the expanded A part, and the other end of the fixing rope is connected to an extension line. Rope loops are fixed at intervals on the extension line, and the rope loops are detachably connected to the hook.

10. The laparoscopic specimen removal device according to claim 9, characterized in that: The fixed shaft and the movable shaft are both fixed with fixing parts, and the fixing parts at the top ends of the fixed shaft and the movable shaft are both provided with first through holes, and the extension line can move in the first through holes.

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