Endoscope object taking device with cutting device
By designing a laminoscopic picking device with a cutting device, using high-strength flexible materials and thin wire cutting components, the damage problem of traditional picking bags when cutting large-volume tumors is solved, and the complete resection of tumor tissue and the safety of surgical surgery is achieved.
Patent Information
- Application Number
- CN202421338987.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-06-13
AI Technical Summary
In existing laparoscopic surgery, traditional bags are prone to breakage when cutting large-volume tumors, resulting in increased surgical risk, and cutting knife methods may lead to tumor residues and implantation.
A laminar lens picking device with a cutting device is designed, a picking bag made of high-strength flexible material, with a built-in simple cutting assembly, and thin wire cutting instead of a cutting knife, and the cutting depth and direction are controlled through thin wire interleaving distribution and limit ring.
The complete resection of tumor tissue is achieved, ensuring the accuracy and safety of the operation, avoiding damage to the extract bag and tumor residue, and reducing the risk of surgery.
Smart Images
Figure CN223143558U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical endoscopic surgical auxiliary instruments, in particular to a laparoscopic object extraction device with a cutting device. Background Art
[0002] Early-stage cancer patients often need to undergo minimally invasive surgery to remove tumors and perform pathological examinations. When the surgery is completed and the minimally invasive surgical specimens are taken out, difficulties are often encountered. For example, a 3-cm single-port thoracoscopic incision cannot smoothly take out a larger lung segment or lobe. Traditional methods, including enlarging the surgical incision or crushing the tumor to facilitate extraction, still have many limitations at present. For example, enlarging the incision may increase the risks of postoperative pain and perioperative-related complications for the patient. Although the method of first crushing and then taking out the tumor in the body is theoretically feasible, in actual surgery, it may lead to tumor residue and local implantation of tumor cells. Even when using a cutting knife to crush the tumor in the retrieval bag, the above consequences are likely to occur due to the damage of the side wall of the retrieval bag during the crushing process. By setting a cutting device on the retrieval bag and taking advantage of the fact that a mass is easily cut by a thin line, a novel improvement is provided for solving larger-volume tumors. Summary of the Utility Model
[0003] In view of the above technical problem that when using a retrieval bag with a cutting knife arranged on the inner wall in laparoscopic surgery, the retrieval bag is easily damaged, the present utility model is proposed.
[0004] The purpose of the present utility model is to provide a laparoscopic object extraction device with a cutting device, aiming to solve the problem of using a thin line for cutting instead of a cutting knife.
[0005] To solve the above technical problem, the present utility model provides the following technical solution: A laparoscopic object extraction device with a cutting device, which includes a retrieval bag. The retrieval bag includes a retrieval rod, a push-pull rod, a bag body assembly, a limiting ring, and a cutting assembly. The retrieval rod is a hollow rod, the push-pull rod is arranged inside the retrieval rod, the bag body assembly is arranged at one end of the push-pull rod, the limiting ring is arranged on the bag body assembly, and the cutting assembly is movably connected to the retrieval rod and the bag body assembly.
[0006] As a preferred scheme of the laparoscopic object extraction device of the present utility model, wherein: the retrieval rod includes a grip and an inner groove. The grip is arranged on the outer side of one end of the retrieval rod, and the inner groove is arranged on the inner side of the other end of the retrieval rod.
[0007] As a preferred scheme of the laparoscopic object extraction device of the present utility model, wherein: the push-pull rod includes a finger ring. The finger ring is arranged at one end of the push-pull rod, and the other end of the push-pull rod is provided with the bag body assembly.
[0008] As a preferred solution of the laparoscope object-retrieving device of the utility model, the bag body assembly includes a bag body and a metal ring, the metal ring is arranged at one end of the push-pull rod, and the bag body is fixedly arranged on the metal ring.
[0009] As a preferred solution of the laparoscope object-taking device of the utility model, wherein: the material of the metal ring is a stainless steel wire ring.
[0010] As a preferred solution of the laparoscope picking device of the utility model, wherein: the limiting ring includes a first limiting ring, a second limiting ring and a third limiting ring, and the limiting rings are symmetrically distributed on the bag body, the first limiting ring is arranged on the side of the bag body away from the finger ring, the second limiting ring is arranged on the side between the first limiting ring and the finger ring, and the third limiting ring is arranged on the other side between the first limiting ring and the finger ring.
[0011] As a preferred solution of the laparoscope taking device of the utility model, wherein: the cutting assembly includes a first cutting line, a second cutting line, a shrinking taking bag pull line and a pull ring, the first cutting line and the second cutting line are staggered, the first cutting line and the second cutting line are distributed on the inner wall of the bag body, the shrinking taking bag pull line is passed through the opening of the bag body, the pull ring is arranged at the ends of the first cutting line and the second cutting line, and the pull ring is arranged on one side of the finger ring.
[0012] As a preferred solution of the laparoscope retrieval device of the utility model, wherein: the first cutting line and the second cutting line are made of metal wire or polyethylene fiber line, and the shrinkable retrieval bag pull line is made of synthetic fiber.
[0013] As a preferred solution of the laparoscope object taking device of the utility model, wherein: the diameter of the first cutting line and the second cutting line is 0.2-0.5 mm.
[0014] As a preferred solution of the laparoscope object-taking device of the utility model, the second cutting line includes a first mesh line and a second mesh line, and the first mesh line and the second mesh line are symmetrically distributed on both sides of the inner wall of the bag body.
[0015] The beneficial effects of the laparoscopic retrieval device of the utility model are as follows: the retrieval bag is made of high-strength and flexible material and has a built-in simple cutting device. When the tumor is too large to pass through the minimally invasive incision, the cutting device can accurately and quickly cut the tumor tissue into pieces of appropriate size, ensuring complete removal of the tumor tissue while meeting the "tumor-free" principle of the surrounding area. In addition, the design structure of the retrieval bag allows the operator to easily control the depth and direction of the cutting, ensuring the accuracy and safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:
[0017] Figure 1 It is a schematic diagram of the state in which the push-pull rod in the utility model is pushed forward and the metal ring is stretched open.
[0018] Figure 2 It is a cross-sectional view of the picking rod and the push-pull rod in the utility model.
[0019] Figure 3 It is a top view of the taking bag in the utility model.
[0020] Figure 4 It is a partial enlarged view of the cutting component in the utility model.
[0021] Figure 5 This is a diagram showing the overall structure of the mesh retrieval bag in the utility model.
[0022] Figure 6 It is an enlarged partial view of the mesh of the cutting component in the utility model. DETAILED DESCRIPTION
[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.
[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0025] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.
[0026] Example 1
[0027] Reference Figure 1, which is the first embodiment of the present utility model. This embodiment provides a laparoscopic retrieval device with a cutting device, including a retrieval bag 100. The retrieval bag 100 includes a retrieval rod 101, a push-pull rod 102, a bag body assembly 103, a limiting ring 104, and a cutting assembly 105.
[0028] Preferably, the retrieval bag 100 includes a retrieval rod 101, a push-pull rod 102, a bag body assembly 103, a limiting ring 104, and a cutting assembly 105. The retrieval rod 101 is a hollow rod, and the push-pull rod 102 is arranged inside the retrieval rod 101. The push-pull rod 102 passes through the hollow retrieval rod 101. The bag body assembly 103 is arranged at the front end of the push-pull rod 102. The limiting ring 104 is arranged on the bag body assembly 103 and is evenly and symmetrically distributed. The cutting assembly 105 is movably connected to the retrieval rod 101 and the bag body assembly 103.
[0029] During use, the push-pull rod 102 is arranged inside the retrieval rod 101 and passes through the hollow retrieval rod 101. The bag body assembly 103 is arranged at the front end of the push-pull rod 102. The limiting ring 104 is evenly and symmetrically distributed on the bag body assembly 103. By pulling the cutting assembly 105 at the rear end of the push-pull rod 102, the mass can be cut and retrieved.
[0030] Embodiment 2
[0031] Referring to Figures 1 to 4 , which is the second embodiment of the present utility model. Different from the previous embodiment, the retrieval rod 101 further includes a grip 101a and an inner groove 101b. The grip 101a is arranged on the outer side of the rear end of the retrieval rod 101 and is located at the end of the hollow retrieval rod 101, facilitating the surgeon to push and pull the push-pull rod 102 more conveniently. The inner groove 101b is arranged on the inner side of the front end of the retrieval rod 101. The cutting assembly 105 is arranged in parallel with the push-pull rod 102 inside the hollow retrieval rod 101, avoiding the phenomenon of chaotic knotting between the first cutting line 105a and the second cutting line 105b inside the hollow retrieval rod 101, and used to limit the movement positions of the first cutting line 105a and the second cutting line 105b during the operation.
[0032] Preferably, the push-pull rod 102 includes a finger ring 102a, and the finger ring 102a is arranged at the end of the push-pull rod 102, facilitating the pushing or pulling of the push-pull rod 102. The bag body assembly 103 is arranged at the front end of the push-pull rod 102.
[0033] Preferably, the bag body assembly 103 includes a bag body 103a and a metal ring 103b. The metal ring 103b is arranged at one end of the push-pull rod 102, and the bag body 103a is fixedly arranged on the metal ring 103b.
[0034] Furthermore, the metal ring 103b is made of a stainless steel wire ring. Stainless steel has excellent elasticity and toughness, strong corrosion resistance, and is not easy to rust. When the push-pull rod 102 moves out of the hollow picking rod 101, the metal ring 103b at the front end of the push-pull rod 102 can open by itself without external force, and the bag body 103a fixed on the metal ring 103b can be fully unfolded.
[0035] Preferably, the limiting ring 104 includes a first limiting ring 104a, a second limiting ring 104b and a third limiting ring 104c, and the limiting rings 104 are symmetrically distributed on the bag body 103a. The first limiting ring 104a is arranged on the side of the bag body 103a away from the finger ring 102a, the second limiting ring 104b is arranged on the upper side between the first limiting ring 104a and the finger ring 102a, and the third limiting ring 104c is arranged on the lower side between the first limiting ring 104a and the finger ring 102a.
[0036] Preferably, the cutting assembly 105 includes a first cutting line 105a, a second cutting line 105b, a shrink bag pull line 105c and a pull ring 105d, the first cutting line 105a and the second cutting line 105b are staggered at the bottom of the bag body 103a, and a fixing hole is provided at the intersection of the lower edge of the first cutting line 105a and the lower edge of the second cutting line 105b at the bottom of the bag body 103a to ensure that the first cutting line 105a and the second cutting line 105b are in the working position, and the first cutting line 105a and the second cutting line 105b are also distributed on the inner wall of the bag body 103a, and the first cutting line 105a and the second cutting line 105b are staggered at the bottom of the bag body 103a. The upper edge of 105a passes through the second limiting circle 104b and the third limiting circle 104c, and the upper edge of the second cutting line 105b passes through the first limiting circle 104a and the second limiting circle 104b. The shrinkage bag pull line 105c is passed through the opening of the bag body 103a. The shrinkage bag pull line 105c does not participate in the cutting process. The shrinkage bag pull line 105c is used to shrink the opening of the bag body 103a to facilitate removal from the minimally invasive incision. The pull ring 105d is arranged at the end of the first cutting line 105a and the second cutting line 105b, and the pull ring 105d is arranged on one side of the finger ring 102a.
[0037] Furthermore, the minimum pressure required to cut the mass is Wherein F is the minimum destructive force of the cutting line, which is approximately equal to the gravity of the mass, d is the diameter of the cutting line, and l is the length of the cutting line. According to the above formula, the first cutting line 105a and the second cutting line 105b are preferably made of metal wire or polyethylene fiber, and the shrink bag pull line 105c is made of synthetic fiber to ensure that it will not be broken due to excessive force and has strong flexibility.
[0038] Furthermore, the diameters of the first cutting line 105a and the second cutting line 105b are 0.2-0.5 mm.
[0039] During use, when implementing the function of cutting the mass, the operator pulls the pull ring 105d, driving the first cutting line 105a and the second cutting line 105b to move. The upper edges of both ends of the first cutting line 105a move along the opening direction of the bag body 103a due to the fixation on both sides of the second limiting ring 104b and the third limiting ring 104c, and the lower edge of the first cutting line 105a gradually rises to the opening of the bag body 103a. Similarly, the upper edge of the second cutting line 105b moves along the opening direction of the bag body 103a due to the fixation of the first limiting ring 104a and the second limiting ring 104b, and the lower edge of the second cutting line 105b gradually rises to the opening of the bag body 103a. Under the simultaneous action of the first cutting line 105a and the second cutting line 105b, the cutting of the mass is achieved. When the operator finds that the cutting line in the retrieval bag cannot implement the function of cutting the mass during laparoscopic operation, the operator can temporarily pull the pull ring 105d to drive the retractable retrieval bag pull wire 105c, so that the bag opening of the bag body 103a is temporarily closed. At the same time, the operator gradually moves the hollow retrieval rod 101 and the push-pull rod 102 out of the minimally invasive incision until the metal ring 103b at the front end of the push-pull rod 102 is completely exposed outside the body. At this time, since the mass is too large to be taken out, the bag opening of the bag body 103a is stuck in the minimally invasive incision. The operator moves the hollow retrieval rod 101 completely backward to fully expose the front end of the push-pull rod 102 until the first cutting line 105a and the second cutting line 105b hidden inside the hollow retrieval rod 102 are fully exposed. The operator directly contacts the first cutting line 105a and the second cutting line 105b outside the patient's body, and fully disengages them from the push-pull rod 102, the metal ring 103b and the limiting ring 104. The first cutting line 105a and the second cutting line 105b are pulled upward perpendicular to the incision surface outside the body to achieve supplementary cutting of the mass. After successfully cutting the mass, the operator pulls the retractable retrieval bag pull wire 105c outside the patient's body to close the bag opening of the bag body 103a, and then takes out the whole bag body 103a from the minimally invasive incision.
[0040] Embodiment 3
[0041] Refer to Figures 1 to 4, which is the second embodiment of the present utility model. Different from the previous embodiment, it further includes a second cutting line 105b, which includes a first mesh line 105b-1 and a second mesh line 105b-2. The first mesh line 105b-1 and the second mesh line 105b-2 are symmetrically distributed on both sides of the inner wall of the bag body 103a. Embodiment 3 is an optimized application scheme designed according to the actual tumor size, tumor texture, minimally invasive incision length, etc. of different patients. The mesh line cutting line is more conducive to the cutting of the mass, and the cut mass is smaller, which is more conducive to the smooth removal of the larger mass from the minimally invasive incision. The first mesh line 105b-1 and the second mesh line 105b-2 are symmetrically distributed on both sides of the inner wall of the bag body 103a. The upper edges of the first mesh line 105b-1 and the second mesh line 105b-2 pass through the first limiting ring 104a, the second limiting ring 104b, the first limiting ring 104a, and the third limiting ring 104c along the opening of the bag body 103a respectively. The lower edges of the first mesh line 105b-1 and the second mesh line 105b-2 run along the bottom of the bag body 103a. The first mesh line 105b-1 and the second mesh line 105b-2 meet at the front end of the push rod 102. The converging section of the first mesh line 105b-1 and the second mesh line 105b-2 extends to the vicinity of the finger ring 102a through the inner groove 101b of the extraction rod 101. After the first mesh line 105b-1 and the second mesh line 105b-2 converge, they can still be operated singly, so that the first mesh line 105b-1 and the second mesh line 105b-2 can move upward and have the function of realizing zoning.
[0042] During use, the first mesh line 105b-1 and the second mesh line 105b-2 share the lower edge D area, the front section A area, and the rear section B area of the mesh cutting line. Multiple vertical cutting lines are distributed between the upper edge C area and the lower edge D area of the mesh cutting line. Multiple horizontal cutting lines are distributed between the front section A area and the rear section B area of the mesh cutting line. When the pull ring 105d drives the first mesh line 105b-1 to move, the lower edge D of the mesh cutting line gradually moves vertically towards the opening of the bag body 103a, driving the vertical and horizontal cutting lines on the inner side wall of the bag body 103a to move towards the bag mouth together. Similarly, when the second mesh line 105b-2 moves simultaneously, multiple vertical and horizontal cutting lines on the other inner side wall of the bag body 103a form a mesh structure to cut the mass, which is conducive to further reducing the mass for easy removal from the minimally invasive incision.
[0043] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the size, scale, structure, shape and proportion of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientation changes, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.
[0044] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently considered best mode of implementing the present utility model or those features that are not relevant to the implementation of the present utility model).
[0045] It should be understood that in the development of any actual implementation, as in any engineering or design project, a large number of specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, manufacturing and production.
[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.
Claims
1. A laparoscopic retrieval device with a cutting device, characterized in that: include, A picking bag (100), the picking bag (100) comprising a picking rod (101), a push-pull rod (102), a bag body assembly (103), a limiting ring (104) and a cutting assembly (105), the picking rod (101) being a hollow rod, the push-pull rod (102) being arranged inside the picking rod (101), the bag body assembly (103) being arranged at one end of the push-pull rod (102), the limiting ring (104) being arranged on the bag body assembly (103), and the cutting assembly (105) being movably connected to the picking rod (101) and the bag body assembly (103).
2. The endoscopic retrieval device according to claim 1, wherein: The picking rod (101) comprises a handle (101a) and an inner groove (101b), wherein the handle (101a) is arranged on the outside of one end of the picking rod (101), and the inner groove (101b) is arranged on the inside of the other end of the picking rod (101).
3. The endoscopic retrieval device according to claim 2, wherein: The push-pull rod (102) comprises a finger ring (102a), wherein the finger ring (102a) is arranged at one end of the push-pull rod (102), and a bag body assembly (103) is arranged at the other end of the push-pull rod (102).
4. The endoscopic retrieval device according to claim 1 or 3, characterized in that: The bag body assembly (103) comprises a bag body (103a) and a metal ring (103b), wherein the metal ring (103b) is arranged at one end of the push-pull rod (102), and the bag body (103a) is fixedly arranged on the metal ring (103b).
5. The endoscopic extraction device according to claim 4, wherein: The metal ring (103b) is made of a stainless steel wire ring.
6. The endoscopic retrieval device according to claim 1 or 5, characterized in that: The limiting ring (104) comprises a first limiting ring (104a), a second limiting ring (104b) and a third limiting ring (104c); the limiting rings (104) are symmetrically distributed on the bag body (103a); the first limiting ring (104a) is arranged on a side of the bag body (103a) away from the finger ring (102a); the second limiting ring (104b) is arranged on a side between the first limiting ring (104a) and the finger ring (102a); and the third limiting ring (104c) is arranged on the other side between the first limiting ring (104a) and the finger ring (102a).
7. The endoscopic retrieval device according to claim 6, wherein: The cutting assembly (105) comprises a first cutting line (105a), a second cutting line (105b), a shrinkable bag pull line (105c) and a pull ring (105d); the first cutting line (105a) and the second cutting line (105b) are arranged in an alternating manner; the first cutting line (105a) and the second cutting line (105b) are arranged on the inner wall of the bag body (103a); the shrinkable bag pull line (105c) is passed through the opening of the bag body (103a); the pull ring (105d) is arranged at the ends of the first cutting line (105a) and the second cutting line (105b); and the pull ring (105d) is arranged on one side of the finger ring (102a).
8. The endoscopic retrieval device according to claim 7, wherein: The first cutting line (105a) and the second cutting line (105b) are made of metal wire or polyethylene fiber line, and the shrinkable bag draw line (105c) is made of synthetic fiber.
9. The endoscopic retrieval device according to claim 8, wherein: The diameters of the first cutting line (105a) and the second cutting line (105b) are 0.2-0.5 mm.
10. The endoscopic retrieval device according to claim 6, wherein: The second cutting line (105b) includes a first mesh line (105b-1) and a second mesh line (105b-2), and the first mesh line (105b-1) and the second mesh line (105b-2) are symmetrically distributed on both sides of the inner wall of the bag body (103a).