Laparoscopic retrieval bag

Abstract

A laparoscopic retrieval bag comprises a bag body with 2-4 bag openings, characterized in that two of the bag openings are arranged on a straight line in the longitudinal direction of the bag body; elastic binding rings are arranged next to the two bag openings arranged on a straight line; cutting knives for chopping tissue are arranged on the inner wall of the bag body or in the bag body; the cutting knives are non-integrally connected to the bag body and are 4-8 cutting knives made of memory material; when in use, the bag body is sent to the surgical site through a conveying device, and the elastic binding ring at the opening of the retrieval bag is opened, so that the retrieval bag is stretched, and then the separately arranged cutting knives are inserted through the conveying structure, and the cut to be removed is inserted into the retrieval bag, and then the binding ring is tied, and the cutting is completed by pulling the openings on both sides or setting a pulling hook to stretch, so that the internal cutting knife can achieve the purpose of cutting the tissue by repeatedly loosening and tightening the tissue to be removed.

Description

Technical Field

[0001] The invention belongs to the technical field of medical endoscopic surgery auxiliary instruments, in particular to a tissue removal instrument used in laparoscopic surgery, and specifically relates to a laparoscopic retrieval bag. Background Art

[0002] As a newly developed minimally invasive method, laparoscopic surgery is an inevitable trend in the development of surgical methods in the future. Compared with traditional surgery, it is popular among patients because of its small postoperative scars and aesthetic requirements. At present, most general surgical operations can be completed by laparoscopic surgery. Such as appendectomy, gastric and duodenal ulcer perforation repair, hernia repair, colectomy, splenectomy, adrenalectomy, ovarian cyst removal, ectopic pregnancy, hysterectomy, uterine myoma removal, etc. With the continuous improvement of laparoscopic technology and the improvement of the operating level of laparoscopic doctors, almost all surgical operations can be performed by this operation.

[0003] At present, for large tissues removed under laparoscopy, such as hysterectomy, uterine myomectomy and other tumor-like tissue removal, they usually need to be minced or crushed inside before being removed. The mincing process for large tissues takes a long time and requires doctors to perform multiple operations to complete. In addition, some liquid leakage is easy to occur during the operation, which is not easy to clear. In addition, during the mincing or crushing process of some inaccurate malignant tumor tissues in the body before surgery, the missed tissues and cells will cause the metastasis and spread of tumor tissues, causing greater diseases. Therefore, a method that can effectively solve the above technical problems is needed.

[0004] The present invention aims at the fact that there is no instrument in the prior art for effectively and reasonably cutting large pieces of tissue and effectively removing the removed tissue during laparoscopic surgery, and specifically is a laparoscopic retrieval bag. Summary of the invention

[0005] In order to overcome the technical problems in the prior art that large pieces of tissue cannot be effectively cut during laparoscopic surgery and it takes a long time to remove the cut tissue, the present invention provides a laparoscopic retrieval bag.

[0006] A laparoscopic retrieval bag includes a bag body, and 2-4 bag openings are arranged on the bag body. The bag body is characterized in that two of the bag openings are arranged on a straight line in the longitudinal direction of the bag body; elastic binding rings are arranged next to the two bag openings arranged on a straight line; and a cutting knife for chopping tissue is arranged on the inner wall of the bag body or in the bag body. When in use, the bag body is sent to the surgical site through a conveying device, and the elastic binding ring at the opening of the retrieval bag is opened, so that the retrieval bag is stretched open, and the excised material to be removed is inserted into the retrieval bag, and then the binding ring is tied up, and by pulling the openings on both sides, the internal cutting knife is repeatedly loosened and tightened on the tissue to be removed, so as to achieve the purpose of cutting the tissue.

[0007] Furthermore, a cutting knife placement structure is arranged on the inner wall of the bag body, and the cutting knife is arranged in the placement structure. This arrangement can ensure that the cutting knife is placed separately after the bag body is placed, and effectively prevent the cutting knife from damaging the bag body.

[0008] Furthermore, the cutting knife placement structure is arranged longitudinally along the retrieval bag, and the cutting knife placement structure is a structure including a blade opening, and the cutting knife is inserted into the cutting knife placement structure through the blade opening. The longitudinally arranged structure can effectively ensure the cutting of larger tissues.

[0009] Furthermore, the cutting knife has a slightly enlarged rear end and a blade structure at the front end. This arrangement can effectively ensure that the cutting knife is stable.

[0010] Furthermore, the cutting blade is a cutting blade with a certain elastic deformation capability; this arrangement can ensure that the cutting blade adapts its shape with repeated loosening and tightening processes;

[0011] Further, 2-4 pairs of correspondingly arranged cutting knife placement structures are provided, and cutting knives are arranged in the cutting knife placement structures. This arrangement can ensure effective chopping of the tissue to be removed.

[0012] Furthermore, the cutting blade is made of shape memory material, and the shape of the cutting blade is an arc structure.

[0013] Furthermore, the cutting knife is an arc knife, and 4-8 arc knives are arranged, and the upper end of each arc knife is arranged around a ring structure, and the lower end is freely arranged. The free arrangement of the lower end can ensure that the opening is effectively opened after the cutting knife is placed, and ensure that larger tissues enter the extraction bag.

[0014] Furthermore, the free end of the lower end of the arc knife is provided with an inwardly curved section, and a circular ring structure is provided to be placed on all the curved sections when pulling. This arrangement can facilitate the effective pulling and cutting of both ends of the arc knife, and when it is relaxed, the cutting knife is effectively loosened, and cutting is performed when pulling again until all the parts are cut.

[0015] Furthermore, the arc knife is separated from the bag body and is placed inside the bag body when in use. Multiple arc knives can be placed at one time through the arc knife conveying structure. This arrangement facilitates effective cutting of the tissue to be removed when the shape of the arc knife changes, and prevents the inconvenience caused by the bag body in cutting.

[0016] Furthermore, two pulling hooks with a pulling ring structure and a ring structure are arranged at two bag openings arranged on a straight line. The pulling hooks are used to pull the arc knife from an arc shape to a straight shape for cutting, and then relax it, and use the shape memory of the arc knife to bend it again. The above operation is repeated until the tissue is chopped.

[0017] Furthermore, the bag body is made of a transparent and tough material, which can effectively protect the bag body and reduce damage during use, and the transparent setting can facilitate observation of the inside of the bag from the outside.

[0018] Furthermore, the elastic binding ring is arranged in the insertion roll at the edge of the taking bag, and the insertion roll is provided with a notch, which facilitates pulling and binding the elastic binding ring.

[0019] Furthermore, an endoscope bag opening may be arranged on the upper part of the retrieval bag, and the endoscope bag opening is smaller than the two bag openings arranged in a straight line.

[0020] The device described in the present invention has a reasonable structure and can effectively cut or mince larger tissues to be removed in the extraction bag in the body, so that the tissues can be removed in the lumen through the extraction bag; in addition, the cutting or mincing work is completed in the extraction bag, which can effectively prevent the omission of tissue fluid or small tissues, thereby preventing the risk of malignant tumor tissue spreading due to inaccurate tissue pathology observation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a perspective view of the overall structure of Embodiment 3 of the present invention;

[0022] Figure 2 This is a perspective view of the overall structure of Example 1 of the present invention;

[0023] Figure 3 This is a schematic diagram of the longitudinal cross-sectional structure of Example 1 of the present invention;

[0024] Figure 4 This is a schematic diagram of the transverse cross-sectional structure of Example 1 of the present invention;

[0025] Figure 5 It is a partial enlarged structural schematic diagram of the cutting knife placement structure of the present invention;

[0026] Figure 6 It is a schematic diagram of a partially enlarged structure of a cutting knife placement structure without a cutting knife in the present invention;

[0027] Figure 7 This is a schematic diagram of the overall structure of Embodiment 3 of the present invention;

[0028] Figure 8 This is a schematic diagram of a longitudinal cross-sectional structure of Embodiment 3 of the present invention;

[0029] Fig. 9 This is a schematic diagram of a transverse cross-sectional structure of Embodiment 3 of the present invention;

[0030] Fig.10 This is a schematic diagram of the structure of a pull hook with embodiment 3 of the present invention;

[0031] Fig.11This is a perspective structural diagram of a pulling hook with embodiment 3 of the present invention;

[0032] Fig.12 This is a schematic diagram of a non-replaceable structure with a pulling hook in Example 3 of the present invention;

[0033] Fig.13 This is a schematic diagram of a partially enlarged structure of the lower part of the arc-shaped knife in Example 3 of the present invention;

[0034] Fig.14 This is a schematic diagram of the partially enlarged structure of the upper part of the arc-shaped knife in Example 3 of the present invention;

[0035] Fig.15 It is a schematic diagram of the partial enlarged structure of the upper part of the bag body of the present invention;

[0036] Fig.16 It is a partial enlarged structural schematic diagram of the upper part of the bag body and the inelastic binding ring structure of the present invention;

[0037] In the figure, 1, bag body; 12, elastic binding ring; 121, insert roll; 122, notch; 2, cutting knife; 21, blade; 22, cutting knife placement structure; 221, blade opening; 3, arc knife; 31, ring structure; 32, bending section; 33, circular ring structure; 4, pulling hook. DETAILED DESCRIPTION

[0038] Example 1 A laparoscopic retrieval bag

[0039] A laparoscopic retrieval bag includes a bag body 1, two bag openings are arranged on the bag body 1, and the two bag openings are arranged on a straight line in the longitudinal direction of the bag body 1; an elastic binding ring 12 is arranged next to the two bag openings arranged on a straight line; a cutting knife 2 for chopping tissue is arranged on the inner wall of the bag body 1 or in the bag body 1. A cutting knife placement structure 22 is arranged on the inner wall of the bag body 1, and the cutting knife 2 is arranged in the placement structure. This arrangement can ensure that the cutting knife 2 is placed separately after the bag body 1 is placed, effectively preventing the cutting knife 2 from causing damage to the bag body 1. The cutting knife placement structure 22 is arranged along the longitudinal direction of the retrieval bag, and the cutting knife placement structure 22 is a structure including a blade opening 221, and the cutting knife 2 penetrates into the cutting knife placement structure 22 through the blade opening 221. The longitudinally arranged structure can effectively ensure the cutting of larger tissues. The rear end of the cutting knife 2 is slightly bulged, and the front end is a blade 21 structure. This arrangement can effectively ensure that the cutting knife 2 is stable. Two pairs of correspondingly arranged cutting knife placement structures 22 are provided, and the cutting knife 2 is provided in the cutting knife placement structures 22. This arrangement can ensure the effective chopping of the tissue to be removed. The bag body 1 is made of a transparent and tough material. This arrangement can effectively protect the bag body 1 and reduce damage during use. The transparent arrangement can facilitate observation of the internal situation of the bag from the outside. The elastic strapping ring 12 is provided in the insertion roll 121 at the edge of the bag, and the insertion roll 121 is provided with a notch 122. The setting of the notch 122 facilitates the pulling and strapping of the elastic strapping ring 12.

[0040] When in use, first place the sampling bag into the surgical site, loosen the two elastic tying rings 12, stretch the bag opening, and then use the conveying structure to place each cutting knife 2 into the cutting knife placement structure 22. Because of the shape memory material, the bag body 1 is in an expanded state after placement; then put the larger opening at the bottom into the tissue to be removed, use an electrocoagulation knife or a general cutting knife to cut the tissue, and then tie the sampling bag openings on both sides. Then, insert a traction device into the two laparoscopic incisions, pull the two tied bag openings, and chop the tissue through repeated stretching. When the tissue size reaches a size that can be taken out from the laparoscopic incision, the tissue is taken out by pulling the bag opening.

[0041] Example 2 A laparoscopic retrieval bag

[0042] A laparoscopic retrieval bag includes a bag body 1, two bag openings are arranged on the bag body 1, and the two bag openings are arranged on a straight line in the longitudinal direction of the bag body 1; an elastic binding ring 12 is arranged next to the two bag openings arranged on a straight line; a cutting knife 2 for chopping tissue is arranged on the inner wall of the bag body 1 or in the bag body 1. A cutting knife placement structure 22 is arranged on the inner wall of the bag body 1, and the cutting knife 2 is arranged in the placement structure. This arrangement can ensure that the cutting knife 2 is placed separately after the bag body 1 is placed, effectively preventing the cutting knife 2 from causing damage to the bag body 1. The cutting knife placement structure 22 is arranged along the longitudinal direction of the retrieval bag, and the cutting knife placement structure 22 is a structure including a blade opening 221, and the cutting knife 2 penetrates into the cutting knife placement structure 22 through the blade opening 221. The longitudinally arranged structure can effectively ensure the cutting of larger tissues. The rear end of the cutting knife 2 is slightly bulged, and the front end is a blade 21 structure. This arrangement can effectively ensure that the cutting knife 2 is stable. The cutting blade 2 is a cutting blade 2 with a certain elastic deformation capability; this arrangement can ensure that the cutting blade 2 adapts its shape with repeated loosening and tightening processes;

[0043] Four pairs of correspondingly arranged cutting blade placement structures 22 are provided, and cutting blades 2 are arranged in the cutting blade placement structures 22. This arrangement can ensure effective chopping of the tissue to be removed.

[0044] The bag body 1 is made of a transparent and tough material. This arrangement can effectively protect the bag body 1 and reduce damage during use. The transparent arrangement can facilitate observation of the inside of the bag from the outside.

[0045] The elastic binding ring 12 is arranged in the insertion roll 121 at the edge of the retrieval bag, and the insertion roll 121 is provided with a notch 122. The notch 122 is provided to facilitate pulling and binding the elastic binding ring 12. An endoscope pocket is also provided at the upper part of the retrieval bag, and the endoscope pocket is smaller than the two pockets provided in a straight line.

[0046] When in use, first place the bag for taking things into the surgical site, loosen the two elastic binding rings 12, stretch the bag opening, and then use the conveying structure to place each cutting knife 2 into the cutting knife placement structure 22. Because of the shape memory material, the bag body 1 is in an expanded state after placement; then put the tissue to be removed into the larger opening at the bottom, cut the tissue with an electrocoagulation knife or a general cutting knife, and then tie the bag openings on both sides. Then, insert the pulling device into the two laparoscopic incisions, pull the two tied bag openings, and chop the tissue through repeated stretching. When the tissue size reaches the size that can be taken out from the laparoscopic incision, the tissue is taken out by pulling the bag opening. During use, an endoscope can also be placed through the endoscope bag opening to observe the tissue state, so as to facilitate reasonable adjustment of the stretching direction.

[0047] Example 3: A laparoscopic retrieval bag

[0048] A laparoscopic retrieval bag comprises a bag body 1, two bag openings are arranged on the bag body 1, and the two bag openings are arranged on a straight line in the longitudinal direction of the bag body 1; an elastic binding ring 12 is arranged next to the two bag openings arranged on a straight line; and a cutting knife 2 for shredding tissue is arranged on the inner wall of the bag body 1 or in the bag body 1. The cutting knife 2 is made of shape memory material, and the shape of the cutting knife 2 is an arc structure. The cutting knife 2 is an arc knife 3, and 4-8 arc knives 3 are arranged. The upper end of each arc knife 3 is arranged around an annular structure 31, and the lower end is freely arranged. The free arrangement of the lower end can ensure that the opening is effectively opened after the cutting knife 2 is placed, and ensure that larger tissues enter the retrieval bag. The free end of the lower end of the arc knife 3 is provided with a bending section 32 that bends inward, and a circular ring structure 33 is placed on all the bending sections 32 when pulling. This arrangement can facilitate the effective pulling and cutting of the two ends of the arc knife 3. When it is released, the cutting knife 2 is effectively released, and it is cut again when it is pulled again until it is completely cut. 4-8 arc-shaped knives 3 are provided. The arc-shaped knives 3 are provided separately from the bag body 1. When in use, the arc-shaped knives 3 are provided in the bag body, and multiple arc-shaped knives 3 are placed at one time through the arc-shaped knife 3 conveying structure. This arrangement facilitates the effective cutting of the tissue to be removed when the shape of the arc-shaped knife 3 changes, and prevents the inconvenience caused by the bag body 1 in cutting. Two pulling hooks of the pulling circular ring structure 33 and the annular structure 31 are provided at the two bag openings arranged in a straight line. The pulling hooks are used to pull the arc-shaped knife 3 from an arc to a straight shape for cutting, and then relax it, and use the shape memory of the arc-shaped knife 3 to bend again, and repeat the above operation until the tissue is chopped. The bag body 1 is made of transparent and tough material. This arrangement can effectively protect the bag body 1 and reduce damage during use. The transparent setting can facilitate observation of the inside of the bag from the outside.

[0049] The elastic binding ring 12 is arranged in an insertion roll 121 at the edge of the taking bag, and a notch 122 is arranged in the insertion roll 121. The notch 122 is arranged to facilitate pulling and binding the elastic binding ring 12.

[0050] When in use, first place the sampling bag into the surgical site, loosen the two elastic binding rings 12, stretch the bag opening, and then use the conveying structure to place the connected arc knife 3 into the bag body 1. Because of the shape memory material, the bag body 1 is in an expanded state after placement; then put the tissue to be removed into the larger opening at the bottom, use an electrocoagulation knife or a general cutting knife to cut the tissue, tighten the binding ring, and at the same time insert two traction hooks through the two openings of the laparoscope, then tie the sampling bag openings on both sides, and then use the traction hook 4 to pull the annular structure 31 and the circular ring structure 33. Through repeated stretching, the tissue is shredded. When the tissue size reaches the size that can be removed from the laparoscope incision, the tissue is removed by pulling a traction hook 4.

[0051] Example 4: A laparoscopic retrieval bag

[0052] A laparoscopic retrieval bag comprises a bag body 1, two bag openings are arranged on the bag body 1, and the two bag openings are arranged on a straight line in the longitudinal direction of the bag body 1; an elastic binding ring 12 is arranged next to the two bag openings arranged on a straight line; and a cutting knife 2 for shredding tissue is arranged on the inner wall of the bag body 1 or in the bag body 1. The cutting knife 2 is made of shape memory material, and the shape of the cutting knife 2 is an arc structure. The cutting knife 2 is an arc knife 3, and 4-8 arc knives 3 are arranged. The upper end of each arc knife 3 is arranged around an annular structure 31, and the lower end is freely arranged. The free arrangement of the lower end can ensure that the opening is effectively opened after the cutting knife 2 is placed, and ensure that larger tissues enter the retrieval bag. The free end of the lower end of the arc knife 3 is provided with a bending section 32 that bends inward, and a circular ring structure 33 is placed on all the bending sections 32 when pulling. This arrangement can facilitate the effective pulling and cutting of the two ends of the arc knife 3. When it is released, the cutting knife 2 is effectively released, and it is cut again when it is pulled again until it is completely cut. 4-8 arc-shaped knives 3 are provided. The arc-shaped knives 3 are provided separately from the bag body 1. When in use, the arc-shaped knives 3 are provided in the bag body, and multiple arc-shaped knives 3 are placed at one time through the arc-shaped knife 3 conveying structure. This arrangement facilitates the effective cutting of the tissue to be removed when the shape of the arc-shaped knives 3 changes, and prevents the inconvenience caused by the bag body 1 in cutting. Two pulling hooks for pulling the circular ring structure 33 and the annular structure 31 are provided at the two bag openings provided in a straight line. The pulling hooks are used to pull the arc-shaped knives 3 from an arc shape to a straight shape for cutting, and then relax, and use the shape memory of the arc-shaped knives 3 to bend again, and the above operation is repeated until the tissue is chopped.

[0053] The bag body 1 is made of a transparent and tough material. This arrangement can effectively protect the bag body 1 and reduce damage during use. The transparent arrangement can facilitate observation of the inside of the bag from the outside.

[0054] The elastic binding ring 12 is arranged in the insertion roll 121 at the edge of the retrieval bag, and the insertion roll 121 is provided with a notch 122. The notch 122 is provided to facilitate pulling and binding the elastic binding ring 12. An endoscope pocket opening is also provided at the upper part of the retrieval bag, and the endoscope pocket opening is smaller than the two pocket openings provided in a straight line. An endoscope pocket opening is also provided at the upper part of the retrieval bag, and the endoscope pocket opening is smaller than the two pocket openings provided in a straight line.

[0055] When in use, first place the bag for taking things into the surgical site, loosen the two elastic binding rings 12, stretch the bag opening, and then use the conveying structure to place the connected arc knife 3 into the bag body 1. Because of the shape memory material, the bag body 1 is expanded after placement; then put the tissue to be removed into the larger opening at the bottom, cut the tissue with an electrocoagulation knife or a general cutter, tighten the binding ring, and insert two traction hooks through the two openings of the laparoscope at the same time, then tie the two sides of the bag for taking things, and then pull the annular structure 31 and the circular ring structure 33 through the traction hook 4, and chop the tissue through repeated stretching. When the tissue size reaches the size that can be taken out from the laparoscope incision, the tissue is taken out by pulling a traction hook 4. During use, an endoscope can also be placed through the endoscope bag opening to observe the tissue state, so as to facilitate reasonable adjustment of the stretching direction.

[0056] The above embodiments are only used to understand the present invention. It should be noted that, for those skilled in the art, several improvements can be made to the present invention without departing from the principles of the present invention, and these improvements will also fall within the scope of protection of the claims of the present invention.

Claims

1. A laparoscopic retrieval bag, comprising a bag body (1), the bag body (1) being provided with 2-4 bag openings, characterized in that: Two bag openings are arranged on a straight line in the longitudinal direction of the bag body (1); elastic binding rings (12) are arranged next to the two bag openings arranged on a straight line; a cutting knife (2) for chopping tissue is arranged on the inner wall of the bag body (1); the cutting knife (2) is an arc-shaped knife (3), 4 to 8 arc-shaped knives (3) are arranged, the upper end of each arc-shaped knife (3) is arranged around an annular structure (31), and the lower end is freely arranged, the arc-shaped knife (3) is arranged separately from the bag body (1), and when in use, the arc-shaped knife (3) is arranged in the bag body (1), and a cutting knife placement structure (22) is arranged on the inner wall of the bag body (1), and the cutting knife (2) is arranged on the cutting knife placement structure. In the structure (22), the cutting knife placement structure (22) is arranged along the longitudinal direction of the taking bag. The cutting knife placement structure (22) is a structure including a blade opening (221). The cutting knife (2) passes through the blade opening (221) and enters the cutting knife placement structure (22). The lower free end of the arc-shaped knife (3) is provided with a bending section (32) that bends inward. In addition, a circular ring structure (33) is provided that is placed on all the bending sections (32) when pulled. Two pulling circular ring structures (33) and pulling hooks (4) of the annular structure (31) are provided at two bag openings arranged in a straight line. The cutting knife (2) is made of shape memory material.

2. The laparoscopic retrieval bag according to claim 1, characterized in that: The elastic binding ring (12) is arranged in an insertion roll (121) at the edge of the taking bag, and a notch (122) is provided in the insertion roll (121).

Images