Object taking bag for laparoscope

Abstract

A fetching bag for a laparoscope comprises a main rod which is of a hollow structure and further comprises a push rod assembly, and the push rod assembly is connected into the main rod in a sliding mode. The bag body assembly is mounted at the front end of the push rod assembly; the crushing assembly is mounted at the bottom of the bag body assembly; according to the technical scheme, opening and closing of the bag body can be reasonably controlled through linkage of the pushing assembly and the bag body assembly, and after the object taking bag is fed into the abdominal cavity of a patient, the bag opening can be automatically opened only by pushing out the bag body assembly; according to the technical scheme, through the smashing assembly, large tissue is smashed, the size of the tissue is reduced, the manual cutting process of medical staff is omitted, time and labor are saved, and the risk of iatrogenic planting is also avoided.

Description

Technical Field

[0001] The present invention relates to a medical device, and more particularly to an extraction bag for laparoscopy. Background Art

[0002] The extraction bag for laparoscopy is a medical device designed specifically for minimally invasive surgery, used to safely and aseptically isolate and remove excised diseased tissues (such as tumors, cysts, gallbladders, etc.) during laparoscopic surgery. Its core functions are to prevent intraoperative tissue fluid leakage, reduce the risk of infection, and avoid iatrogenic spread of malignant tumors.

[0003] The currently used extraction bag for laparoscopy mainly consists of a bag body and a handle. During laparoscopic surgery, 1. the folded extraction bag is sent into the abdominal cavity, 2. the bag opening is unfolded, 3. the excised tissue is loaded, 4. the bag opening is closed, and 5. it is taken out through the incision. When unfolding the bag opening, due to the lack of corresponding structures for control, it is inconvenient to unfold the folded extraction bag; at the same time, it is inconvenient to handle large-volume tissues, and they need to be manually shredded inside the bag, which is time-consuming and poses a risk of iatrogenic implantation.

[0004] In view of the above problems, we provide an extraction bag for laparoscopy. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies existing in the prior art and provide an extraction bag for laparoscopy.

[0006] The purpose of the present invention is achieved as follows:

[0007] An extraction bag for laparoscopy includes a main rod, the main rod is a hollow structure, and further includes a push rod assembly, and the push rod assembly is slidably connected inside the main rod;

[0008] a bag body assembly, installed at the front end of the push rod assembly;

[0009] a crushing assembly, installed at the bottom of the bag body assembly.

[0010] Furthermore, a main handle is installed at the rear end of the main rod.

[0011] Furthermore, the push rod assembly includes a push rod, a moving block, and a push handle. The moving block is slidably connected inside the main rod, the push rod is arranged at the rear end of the moving block, and the push handle is arranged at the rear end of the push rod.

[0012] Furthermore, the bag body assembly includes a main connecting rod, a side connecting rod, a bag mouth strip, a rotating column, and a bag body. There are four bag mouth strips in total, and the bag mouth strips are arc-shaped structures. The four bag mouth strips are circle-shaped, and the adjacent bag mouth strips are rotatably connected by the rotating column. The bag body is arranged below the bag mouth strip, and the main connecting rod is installed between the rotating column on the rear side and the middle part of the moving block. The side connecting rods are installed between the rotating columns on the left and right sides and the moving block. The main connecting rod, the side connecting rod, the rotating column, and the moving block are all rotatably connected.

[0013] Furthermore, the bag body assembly also includes an expansion bar, which is an arc-shaped structure. The expansion bar is arranged on the side wall of the rotating column, and the lower end of the expansion bar extends into the interior of the bag body. The expansion bar expands the bag body to make it flat.

[0014] Furthermore, the crushing assembly includes a mounting base, a crushing shaft, a motor, and a crushing knife. A mounting base is provided at the bottom center of the bag body, a motor is installed at the bottom of the mounting base, an output shaft of the motor extends to the upper part of the mounting base and is connected to the crushing shaft, and a number of crushing knives are installed on the side wall of the crushing shaft.

[0015] Furthermore, the crushing knives are arranged at equal intervals and staggered along the crushing axis.

[0016] Furthermore, a convergence groove is provided on the top surface of the mounting base, a guide pipe is connected to the bottom of the convergence groove, the bottom of the guide pipe extends to the bottom of the mounting seat and is connected to a negative pressure pipe, a quick-connect plug is installed at the outer end of the negative pressure pipe, a plurality of pipe clips are installed at the bottom of the main rod, and the negative pressure pipe is fixed on the inner side of the pipe clip.

[0017] Furthermore, a plurality of extension plates are rotatably connected to the edge of the top surface of the mounting base, the bottom surfaces of the extension plates are fixedly connected to the bag body, and the extension plates are distributed at equal intervals along the mounting base.

[0018] Furthermore, it also includes an extrusion component installed on both sides of the bag body component.

[0019] Furthermore, the extrusion assembly includes a plurality of electromagnets, which are arranged one by one at equal intervals from top to bottom along the left and right sides of the bag body.

[0020] Furthermore, it also includes a closing component installed on the top of the bag body component.

[0021] Further, the closing assembly includes a shielding cloth, a drawstring, a drawstring loop, a pulling block, and a closing handle. The shielding cloth is disposed at the top edge of the bag body. The shielding cloth is annular, and a plurality of stretching rings are disposed at the inner edge of its annular opening. The drawstring sequentially passes through the plurality of stretching rings. Both ends of the drawstring are fixedly connected to the pulling block. The pulling block is slidably connected to the top surface of the main rod. The pulling block slides back and forth along the main rod. The closing handle is disposed behind the pulling block.

[0022] Advantages of the present invention:

[0023] 1. In the technical solution of the present application, through the linkage of the pushing assembly and the bag body assembly, the opening and closing of the bag body can be reasonably controlled. After the object-taking bag is sent into the patient's abdominal cavity, the bag body assembly only needs to be pushed out to automatically open the bag mouth.

[0024] 2. In the technical solution of the present application, through the crushing assembly, larger tissues are crushed to reduce their volume, saving the process of manual shredding by medical staff, saving time and effort, and also avoiding the risk of iatrogenic implantation. Description of the drawings

[0025] Figure 1 It is a schematic structural diagram of an object-taking bag for laparoscopy Figure 1 。

[0026] Figure 2 It is a schematic cross-sectional structural diagram of an object-taking bag for laparoscopy.

[0027] Figure 3 It is an enlarged schematic diagram at A.

[0028] Figure 4 It is an enlarged schematic diagram at B.

[0029] Figure 5 It is a schematic structural diagram of the bag body assembly.

[0030] Figure 6 It is a schematic structural diagram of an object-taking bag for laparoscopy Figure 2 。

[0031] In the figure: 1. Main rod, 11. Main handle;

[0032] 2. Pusher assembly, 21. Pusher, 22. Moving block, 23. Push handle;

[0033] 3. Bag body assembly, 31. Main connecting rod, 32. Side connecting rod, 33. Bag mouth strip, 34. Rotating column, 35. Bag body, 36. Expansion strip;

[0034] 4. Crushing assembly, 41. Mounting base, 411. Converging groove, 42. Crushing shaft, 43. Electric motor, 44. Crushing knife, 45. Outlet pipe, 46. Negative pressure pipe, 47. Quick-connect plug, 48. Pipe buckle, 49. Extension plate;

[0035] 5. Closing assembly, 51. Shading cloth, 511. Notch, 52. Pulling rope, 53. Pulling rope loop, 54. Pulling block, 55. Closing handle;

[0036] 6. Extrusion assembly, 61. Electromagnet. Detailed implementation manner

[0037] In order to enable those skilled in the technical field to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0038] The embodiment of this application provides a retrieval bag for laparoscopy.

[0039] Embodiment 1, as Figures 1-6 shown.

[0040] A retrieval bag for laparoscopy includes a main rod 1. The main rod 1 has a hollow structure, and a main handle 11 is installed at the rear end of the main rod 1.

[0041] A retrieval bag for laparoscopy further includes a push rod assembly 2, and the push rod assembly 2 is slidably connected inside the main rod 1. Under normal conditions, the push rod assembly 2 is retracted inside the main rod 1, which is convenient for extending into the abdominal cavity from the laparoscopy incision.

[0042] The push rod assembly 2 includes a push rod 21, a moving block 22, and a push handle 23. The moving block 22 is slidably connected inside the main rod 1. The push rod 21 is arranged at the rear end of the moving block 22, and the push handle 23 is arranged at the rear end of the push rod 21. During use, just push and pull the push handle 23.

[0043] A retrieval bag for laparoscopy further includes a bag body assembly 3, which is installed at the front end of the push rod assembly 2 to hold the diseased tissue and safely and isolatedly remove the diseased tissue.

[0044] The bag assembly 3 includes a main connecting rod 31, a side connecting rod 32, a bag mouth strip 33, a rotating column 34, and a bag body 35. There are four bag mouth strips 33 in total. The bag mouth strips 33 are arc-shaped structures. The four bag mouth strips 33 are enclosed in a circle. The adjacent bag mouth strips 33 are connected by the rotating column 34, which is convenient for inserting into the main rod 1 on the one hand, and convenient for the bag mouth strips 33 to actively restore to their original state when unfolded. The bag body 35 is arranged below the bag mouth strip 33. The main connecting rod 31 is installed between the rotating column 34 on the rear side and the middle part of the moving block 22. The side connecting rods 32 are installed between the rotating columns 34 on the left and right sides and the moving block 22. The main connecting rod 31, the side connecting rod 32, the rotating column 34, and the moving block 22 are all connected by rotation. Under normal conditions, the bag assembly 3 is squeezed and inserted into the main rod 1. At this time, the bag mouth strip 33 is approximately straight. When in use, the pushing assembly pushes the moving block 22 to move forward along the main rod 1, and then drives the rotating column 34 and the bag opening strip 33 to move forward through the main connecting rod 31 and the side connecting rod 32 until the part of the structure is completely extended outside the main rod 1. At this time, the bag opening strip 33 restores the arc structure and opens the bag body 35. The setting of the main connecting rod 31 and the side connecting rod 32, 1. Make the tension of the bag opening strip 33 uniform when moving and unfolding, and avoid unilateral stress concentration causing the bag opening strip 33 and the bag opening of the bag body 35 to deform. 2. Easy to operate, the power of the main connecting rod 31 and the side connecting rod 32 is transmitted through the moving block 22, and the surgeon only needs to push and pull the push handle 23 in a straight line with one hand, without rotation or complex angle adjustment. 3. Minimally invasive adaptation, in the contracted state, the main connecting rod 31 and the side connecting rod 32 are arranged in parallel to minimize the folding volume, retracted inside the main rod 1, and can be adapted to the standard laparoscopic sleeve.

[0045] The bag assembly 3 further includes an expansion strip 36, which is an arc-shaped structure. The expansion strip 36 is arranged on the side wall of the rotating column 34, and the lower end of the expansion strip 36 extends into the inside of the bag 35. The expansion strip 36 stretches the bag 35 to make it flat. The expansion strip 36 is a filament-like structure with a certain degree of flexibility. It can be inserted into the main rod 1 along with the rotating column 34 and the bag 35. When the bag 35 is pushed out for use, the expansion strip 36 returns to its original shape and quickly stretches the side wall of the bag 35 inside the bag 35.

[0046] A laparoscopic retrieval bag also includes a crushing component 4 installed at the bottom of the bag body component 3 to crush the large volume of tissue loaded into the bag body 35 to reduce its volume.

[0047] The crushing assembly 4 includes a mounting base 41, a crushing shaft 42, a motor 43, and crushing knives 44. A mounting base 41 is provided at the center of the bottom of the bag body 35. The motor 43 is mounted at the bottom of the mounting base 41. The output shaft of the motor 43 extends to the upper part of the mounting base 41 and is connected to the crushing shaft 42. A number of crushing knives 44 are mounted on the side wall of the crushing shaft 42. The crushing knives 44 are arranged at equal intervals and staggered along the crushing shaft 42. During use, the motor 43 is started to drive the crushing shaft 42 to rotate, and the tissues inside the bag body 35 are crushed by the crushing knives 44.

[0048] A converging groove 411 is formed on the top surface of the mounting base 41. The converging groove 411 is distributed around the top surface of the mounting base 41 so that the crushed tissue liquid flows into the converging groove 411. A lead-out pipe 45 is connected to the bottom of the converging groove 411. The bottom of the lead-out pipe 45 extends below the mounting base and is connected to a negative pressure pipe 46. A quick-connect plug 47 is mounted at the outer end of the negative pressure pipe 46. A number of pipe buckles 48 are mounted at the bottom of the main rod 1. The negative pressure pipe 46 is fixed inside the pipe buckles 48. The quick-connect plug 47 is externally connected to a negative pressure source. On the one hand, the liquid inside the bag body 35 is pumped out; on the other hand, the bag body 35 is contracted to squeeze the crushed tissues together, further reducing the volume of the bag body 35 and facilitating the removal from the laparoscopic incision.

[0049] A number of extension plates 49 are rotatably connected to the edge of the top surface of the mounting base 41. The bottom surface of the extension plate 49 is fixedly connected to the bag body 35. The extension plates 49 are distributed at equal intervals along the mounting base 41. On the one hand, the extension plates 49 can protect the bag body 35 to prevent the crushing knives 44 from cutting the bag body 35 and causing the tissues contained inside the bag body 35 to leak out. On the other hand, the extension plates 49 can assist in unfolding the bag body 35, unfolding and flattening the bottom of the bag body 35 to facilitate the loading of more tissues.

[0050] It further includes a closing assembly 5, which is installed on the top of the bag assembly 3. When crushing tissues and removing the retrieval bag, the closing assembly 5 needs to be closed to avoid tissue splashing and causing the risk of iatrogenic implantation.

[0051] The closing assembly 5 includes a shielding cloth 51, a drawstring 52, a drawstring ring 53, a pulling block 54, and a closing handle 55. The shielding cloth 51 is arranged at the top edge of the bag body 35. The shielding cloth 51 is annular, and a plurality of stretching rings are arranged at the inner edge of the ring. The drawstring 52 passes through the plurality of stretching rings in sequence. The two ends of the drawstring 52 are fixedly connected to the pulling block 54. The pulling block 54 is slidably connected to the top surface of the main rod 1. The pulling block 54 slides forward and backward along the main rod 1. The closing handle 55 is arranged at the rear side of the pulling block 54. Under normal conditions, the shielding cloth 51 is folded and located at the top edge of the bag body 35. It is fixed by a binding belt. The two ends of the binding belt are respectively connected to the bag body 35. The binding belt is a disposable structure with poor toughness. By pulling the drawstring 52, the binding belt can be torn off to tighten the shielding cloth 51. When in use, the closing handle 55 is pulled backwards, and the pulling block 54 drives the pull rope 52 to move backwards, thereby tearing open the shielding cloth 51 and tightening the opening in the middle of the shielding cloth 51 to close it. Finally, the top opening of the bag body 35 is closed to facilitate subsequent tissue crushing and to evacuate the bag body 35 to reduce its volume.

[0052] A notch 511 is formed at the edge of the shielding cloth 51 to avoid interference with the unfolding strip 36 .

[0053] It also includes a squeezing assembly 6, which is installed on both sides of the bag assembly 3. Before taking out the bag, the bag 35 is squeezed to reduce its volume.

[0054] The squeezing assembly 6 includes a plurality of electromagnets 61, which are arranged one by one at equal intervals from top to bottom along the left and right sides of the bag body 35. When the internal tissue of the bag body 35 is crushed and the negative pressure suction is completed, the electromagnets 61 are energized, and the corresponding electromagnets 61 on both sides attract each other to squeeze the bag body 35 inside, reduce its volume, and facilitate removal from the laparoscopic incision.

[0055] When the present invention is used:

[0056] The medical staff holds the main rod and extends the front end of the main rod into the patient's abdominal cavity through the laparoscopic incision.

[0057] Push the push handle, and the main connecting rod and the side connecting rod will be driven by the moving block to drive the bag mouth strip and the bag body to be pushed out from the main rod. When the bag mouth strip is completely pushed out, the bag mouth strip immediately returns to the arc state and stretches the bag body port. The expansion strip restores its shape and stretches the side wall of the bag body, so that the bag body is unfolded. At the same time, when the bag body is unfolded, the extension plate is driven to unfold, and then the extension plate is unfolded to drive the bottom of the bag body to unfold and flatten. At this time, the medical staff can put the excised tissue into the bag body.

[0058] After the tissue is bagged, pull the closing handle backward. Drive the drawstring to move backward through the pulling block, thereby tearing open the shielding cloth and tightening the opening in the middle of the shielding cloth to close it.

[0059] Then start the motor and crush the tissue inside the bag through the crushing knife. After the crushing is completed, start the negative pressure tube connected to the negative pressure source to extract as much as possible the liquid generated by crushing and the air inside the bag, so that the side wall of the bag tightly wraps the tissue. At this time, synchronously pull the push handle backward. Drive the main connecting rod and the side connecting rod through the moving block to drive the bag mouth strip and the bag to retract into the main rod until they cannot retract anymore. At this time, the bag mouth of the bag is tightened and the volume of the bag is also at the minimum. Then start the electromagnet to further squeeze the bag.

[0060] Finally, take out the extraction bag from the laparoscopic incision of the patient.

[0061] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0062] Those skilled in the art will readily conceive of other embodiments of the present application after considering the specification and practicing the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include known common knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and examples are only regarded as exemplary, and the true scope and spirit of the present application are pointed out by the claims. It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. A laparoscopic retrieval bag, comprising a main rod, wherein the main rod is a hollow structure, and is characterized in that: It also includes a push rod assembly, and the main rod is slidably connected to the push rod assembly; A bag assembly is installed at the front end of the push rod assembly, and the bag assembly is pushed out by the push rod assembly, and the bag assembly is used to hold the excised tissue; A crushing assembly, installed at the bottom of the bag assembly, to crush the excised tissue inside the bag assembly; The extrusion components are installed on both sides of the bag body component and squeeze the bag body component to reduce its volume.

2. A laparoscopic retrieval bag according to claim 1, characterized in that: A main handle is installed at the rear end of the main rod.

3. The laparoscopic retrieval bag according to claim 1, characterized in that: The push rod assembly comprises a push rod, a moving block and a push handle. The moving block is slidably connected inside the main rod, the push rod is arranged at the rear end of the moving block, and the push handle is arranged at the rear end of the push rod.

4. The laparoscopic retrieval bag according to claim 1, characterized in that: The bag body assembly includes a main connecting rod, a side connecting rod, a bag mouth strip, a rotating column, and a bag body. There are four bag mouth strips in total. The bag mouth strips are of an arc-shaped structure. The four bag mouth strips are circular in shape. The adjacent bag mouth strips are rotatably connected by the rotating column. The bag body is arranged below the bag mouth strip. The main connecting rod is installed between the rotating column on the rear side and the middle part of the moving block. The side connecting rods are installed between the rotating columns on the left and right sides and the moving block. The main connecting rod, the side connecting rod, the rotating column, and the moving block are all rotatably connected.

5. The laparoscopic retrieval bag according to claim 4, characterized in that: The bag body assembly also includes an expansion bar, which is an arc-shaped structure. The expansion bar is arranged on the side wall of the rotating column, and the lower end of the expansion bar extends into the inside of the bag body. The expansion bar expands the bag body to make it flat.

6. The laparoscopic retrieval bag according to claim 1, characterized in that: The crushing assembly includes a mounting base, a crushing shaft, a motor, and a crushing knife. The mounting base is arranged at the bottom center of the bag body, the bottom of the mounting base is equipped with a motor, the output shaft of the motor extends to the upper part of the mounting base and is connected to the crushing shaft, and a plurality of crushing knives are installed on the side wall of the crushing shaft.

7. The laparoscopic retrieval bag according to claim 6, characterized in that: The crushing knives are arranged at equal intervals and staggered along the crushing shaft.

8. The laparoscopic retrieval bag according to claim 6, characterized in that: A convergence groove is provided on the top surface of the mounting base, a guide pipe is connected to the bottom of the convergence groove, the bottom of the guide pipe extends to the bottom of the mounting seat and is connected to a negative pressure pipe, a quick-connect plug is installed at the outer end of the negative pressure pipe, a plurality of pipe clips are installed at the bottom of the main rod, and the negative pressure pipe is fixed on the inner side of the pipe clip.

9. The laparoscopic retrieval bag according to claim 1, characterized in that: The squeezing assembly includes a plurality of electromagnets which are arranged one by one at equal intervals from top to bottom along the left and right sides of the bag body.

Images