Basket uterine manipulator with negative pressure suction

Abstract

The application discloses a basket-shaped uterine manipulator with negative pressure suction and belongs to the field of medical devices. The basket-shaped uterine manipulator with negative pressure suction comprises a negative pressure suction cup, a negative pressure generator, a basket-shaped hollow uterine cup and a longitudinal uterine rod, a flexible extension tube is connected to the end of the negative pressure suction cup far from the cup mouth, a closed tube device or a one-way valve is arranged on the extension tube; the negative pressure generator is detachably connected to the end of the extension tube; a plurality of hollow holes are arranged on the side wall of the basket-shaped hollow uterine cup, the basket-shaped hollow uterine cup can be sleeved outside the negative pressure suction cup, the extension tube can pass out of the hollow hole or the bottom hole of the basket-shaped hollow uterine cup; one end of the longitudinal uterine rod is connected to the end of the basket-shaped hollow uterine cup far from the cup mouth. The negative pressure suction cup avoids the risk of uterine perforation and the possibility of tumor cell dissemination caused by extrusion during the operation of endometrial cancer, and the existence of the negative pressure suction cup ensures that the basket-shaped hollow uterine cup is correctly sleeved into the cervix, thereby reducing the risk of secondary damage.

Description

Technical Field

[0001] This invention relates to a uterine manipulator for laparoscopic surgery of gynecological cervical malignant tumors, and more specifically, to a basket-shaped uterine manipulator with negative pressure suction. Background Technology

[0002] The cup-type uterine lifter, which is widely used in total laparoscopic hysterectomy (TLH), significantly reduces the incidence of ureteral injury by lifting the uterus cephalic side of the patient; the upper edge of the lifter cup indicates the vaginal fornix, making it relatively easy for the surgeon to determine the fornix incision site. However, due to its design, the cup-type uterine lifter also has some insurmountable drawbacks. For example, the Chinese patent No. ZL202020647526.X, entitled "A Simple Cup-Type Uterine Lifter Without Disassembly," includes a uterine lifter frame, a first locking bolt movably screwed to the right side of the top of the uterine lifter frame, a first uterine lifter cup movably screwed to the left end of the uterine lifter frame, a second uterine lifter cup movably screwed to the outer wall of the first uterine lifter cup, a third uterine lifter cup movably screwed to the outer wall of the second uterine lifter cup, a uterine lifter rod inserted through the inner cavity of the uterine lifter frame, a second locking bolt movably screwed to the right side of the top of the uterine lifter rod, a myoma drill movably screwed to the left end of the second locking bolt, and a guide rod inserted through the inner cavity of the myoma drill.

[0003] 1) In endometrial cancer surgery, the use of a guide rod increases the risk of tumor spread and uterine perforation during the procedure. Conversely, if a cup-shaped uterine maneuver is used without inserting a guide rod, the cup may not be properly positioned on the cervix, indicating the wrong "fornix" and increasing the risk of collateral damage.

[0004] 2) In most cases, after the vaginal fornix is ​​opened during TLH surgery, the myoma drill (cervical fixation device) cannot effectively prevent the uterus from loosening or even falling into the pelvic cavity, causing pelvic contamination (tumor cells or pathogenic microorganisms flowing out from the cervix), leading to postoperative fever, vaginal stump cellulitis, pelvic abscess, and even tumor implantation and dissemination.

[0005] 3) The cervical fixation device needs to be inserted into the cervical stroma in a spiral manner. For postmenopausal women with a narrow cervix or women who have not experienced vaginal delivery, it is difficult for the cervical fixation device to be completely screwed into the cervix, which may lead to violent operation; and the screwing operation can damage the cervical canal structure and affect the postoperative pathological evaluation.

[0006] 4) In patients with endometrial cancer, during the removal of the uterus through the vagina after vaginal fornix incision, the uterus is often compressed by the vagina, causing contents to leak out and contaminate the vaginal stump. In fact, 75% of local recurrences of endometrial cancer occur at the vaginal stump.

[0007] 5) For cervical cancer patients, due to concerns about the cervical fixation device compressing the cervical tumor tissue and causing intraoperative tumor spread, the non-lifting uterus method is currently commonly used for surgery. However, after the vaginal wall is incised at the end of the surgery, tumor cells may still detach and implant in the exposed cervix in the pelvic cavity. Some surgeons choose vaginal suture ligation / vaginal ligation banding to avoid this implantation.

[0008] To reduce tumor implantation caused by intraoperative procedures, existing technologies have disclosed relevant solutions. For example, Chinese Patent No. ZL 201811435085.0 discloses a "Novel Anti-Tumor Implantation Uterine Lifting Cup." This cup is hollow, with a suction tube at the bottom for connecting to a negative pressure suction device. The inner wall of the cup slopes from the front end towards the center, and the outer wall has a ring of evenly spaced side holes. This method uses pressure difference to firmly fix the vaginal stump to the cup. By overlapping the cup and the vaginal stump, the cervical lesion is encased, preventing communication between the tumor and the abdominal cavity. Furthermore, the method of fixing the vaginal wall through negative pressure suction eliminates the need for screws tightening within the cervical canal, avoiding compression of the cervical lesion and achieving tumor-free operation.

[0009] However, this existing technology still has the following drawbacks:

[0010] 1) It uses a negative pressure suction device to create negative pressure in the side hole on the outer wall of the uterine cup to suck part of the vaginal wall tissue into the side hole and fix it. The uterine cup and the vaginal stump overlap to form a closed space to wrap the tumor tissue. This method cannot use the uterine cup to pull the cervix and cannot remove the uterus through the vagina after cutting open the fornix.

[0011] 2) The procedure still requires the use of a guide rod. During the procedure, the guide rod enters the uterine cavity through the bottom opening. The use of the guide rod still carries the risk of tumor spread and uterine perforation during the procedure. Summary of the Invention

[0012] 1. The technical problem that the invention aims to solve

[0013] The purpose of this invention is to overcome the aforementioned shortcomings of existing uterine manipulators and provide a basket-shaped uterine manipulator with negative pressure suction. This invention introduces a negative pressure suction cup that can be used in conjunction with a basket-shaped perforated uterine manipulator cup. While retaining its function of indicating the fornix and lifting the uterus, the negative pressure suction cup eliminates the need for a guide rod, thus avoiding the risk of uterine perforation and the possibility of tumor cell dissemination due to compression during endometrial cancer surgery. Simultaneously, the negative pressure suction cup prevents tumor cells and pathogenic microorganisms from flowing out of the cervix and contaminating the vaginal stump, completely eliminating the possibility of implantation of tumors in the vaginal stump and pelvic cavity, reducing the incidence of postoperative fever, vaginal stump cellulitis, and pelvic abscess, and achieving perfect tumor-free and aseptic practice. Furthermore, the presence of the negative pressure suction cup ensures that the basket-shaped perforated uterine manipulator cup is correctly inserted into the cervix, avoiding the possibility of the uterine manipulator cup shifting and indicating the wrong fornix when used alone, reducing the risk of collateral damage. It also avoids damage to the cervical canal structure, facilitating postoperative pathological evaluation, completely avoiding possible violent manipulation, and making the surgical procedure simpler and more convenient.

[0014] 2. Technical Solution

[0015] To achieve the above objectives, the technical solution provided by the present invention is as follows:

[0016] The present invention provides a basket-shaped uterine lifter with negative pressure suction, comprising:

[0017] A negative pressure suction cup, wherein an extension tube is connected to one end of the cup away from its opening, and the extension tube is equipped with a tube-closing device capable of opening or closing the extension tube or a one-way valve capable of unidirectional flow to draw negative pressure; and,

[0018] A negative pressure generator, detachably connected to the end of an extension tube, for generating negative pressure suction in a negative pressure suction cup; and,

[0019] A basket-shaped perforated uterine cup, wherein the side wall of the basket-shaped perforated uterine cup has several perforations, the basket-shaped perforated uterine cup can be fitted onto the outside of a negative pressure suction cup, and the extension tube can pass through the perforations or bottom hole of the basket-shaped perforated uterine cup; and,

[0020] A longitudinal uterine lifting rod, one end of which is connected to the end of a basket-shaped hollow uterine lifting cup away from the cup mouth.

[0021] Furthermore, the negative pressure suction cup has a trumpet-shaped structure with a large opening.

[0022] Furthermore, the negative pressure suction cup is made of a soft material, and the cup wall of the negative pressure suction cup has a hollow air cavity. The cup wall of the negative pressure suction cup is also provided with an air tube that connects to the air cavity.

[0023] Furthermore, the negative pressure suction cup and the extension tube are formed as a single unit.

[0024] Furthermore, the tube closing device is at least one clamp disposed on the extension tube, which can clamp or open the extension tube.

[0025] Furthermore, the check valve is a detachable check valve or an integrated check valve installed at the end of the extension tube; when using an integrated check valve, there is a shearing position on the extension tube before the check valve, and the integrated check valve is removed by shearing the extension tube to release the pressure of the negative pressure suction cup.

[0026] Furthermore, the negative pressure generator is a negative pressure drainage ball or a suction syringe.

[0027] Furthermore, the basket-shaped hollow uterine cup is larger than the negative pressure suction cup. The rim of the basket-shaped hollow uterine cup is designed with a short front lip and a long back lip. After the basket-shaped hollow uterine cup is fitted over the outside of the negative pressure suction cup, the front lip of the rim of the basket-shaped hollow uterine cup is level with or higher than the outer edge of the rim of the negative pressure suction cup.

[0028] Furthermore, the longitudinal lifting rod and the basket-shaped hollow lifting cup are connected by threads.

[0029] Furthermore, the longitudinal uterine raising rod is a hollow rod through which the extension tube can pass; or, the side wall of the longitudinal uterine raising rod has a through groove that allows the extension tube to move freely.

[0030] 3. Beneficial effects

[0031] Compared with existing known technologies, the technical solution provided by this invention has the following significant advantages:

[0032] The present invention provides a basket-shaped uterine lifter with negative pressure suction, comprising a negative pressure suction cup, a negative pressure generator, a basket-shaped hollow uterine lifter cup, and longitudinal uterine lifter rods, etc. By introducing a negative pressure suction cup that can be used in conjunction with the basket-shaped hollow uterine lifter cup, the present invention has the following beneficial effects:

[0033] (1) Perfectly implement the principles of tumor-free and aseptic techniques:

[0034] a. After inserting the negative pressure suction cup, rinse and disinfect the vagina thoroughly with diluted complexed iodine saline to remove any possible tumor cells and pathogens.

[0035] b. The basket-shaped uterine lifter with negative pressure suction avoids the use of a central guide rod, thus avoiding the risk of uterine perforation and the possibility of tumor cells being squeezed and spread during endometrial cancer surgery.

[0036] c. During the vaginal removal of the uterus after TLH surgery, the negative pressure suction cup can prevent tumor cells and pathogenic microorganisms from flowing out of the cervix and contaminating the vaginal stump.

[0037] The above methods completely eliminate the possibility of vaginal stump and pelvic tumor implantation, and can also reduce the incidence of postoperative fever, vaginal stump cellulitis, and pelvic abscess.

[0038] (2) For patients with cervical cancer, a basket-shaped uterine lifter with negative pressure suction is inserted before the vaginal wall is cut at the end of the operation. This avoids the possible shedding and implantation of tumor cells that may be caused by the cervix being exposed to the pelvic cavity. Compared with vaginal sutures or vaginal ligatures, the basket-shaped uterine lifter with negative pressure suction provides another simpler and more convenient solution. At the same time, the basket-shaped hollow uterine lifter cup can be used to indicate the length of vaginal resection.

[0039] (3) By avoiding the insertion of the cervical fixation device, the cervical canal structure can be avoided, which is beneficial for postoperative pathological evaluation. It completely avoids possible violent operation and makes the surgical operation simpler and more convenient.

[0040] (4) The presence of the negative pressure suction cup ensures that the basket-shaped hollow uterine cup is correctly inserted into the cervix, avoiding the possibility of displacement of the uterine cup when using the uterine cup alone, indicating the wrong "fornix", and reducing the risk of collateral damage. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structural principle of a basket-shaped uterine lifter with negative pressure suction according to Embodiment 1 of the present invention;

[0042] Figure 2 This is a schematic diagram of the disassembled structure of the basket-shaped hollow lifting cup and the longitudinal lifting rod in Embodiment 1 of the present invention;

[0043] Figure 3 This is a schematic diagram of the connection structure between the negative pressure suction cup and the extension tube in this invention;

[0044] Figure 4 This is a schematic diagram of the negative pressure suction cup being fitted onto the cervix in this invention;

[0045] Figure 5 This is a schematic diagram of a basket-shaped hollowed-out uterine cup inserted into a negative pressure suction cup in this invention;

[0046] Figure 6 This is a schematic diagram of removing the basket-shaped hollow uterine lifting cup when the uterus is removed through the vagina after the fornix is ​​cut open in this invention;

[0047] Figure 7 This is a schematic diagram illustrating the downward pulling of the extension tube to expose the cervix and uterus in this invention;

[0048] Figure 8 This is a schematic diagram of the structural principle of a basket-shaped uterine lifter with negative pressure suction according to Embodiment 2 of the present invention;

[0049] Figure 9This is a cross-sectional view of a basket-shaped uterine lifter with negative pressure suction according to Embodiment 2 of the present invention;

[0050] Figure 10 This is a schematic diagram showing the disassembled structure of a basket-shaped uterine lifter with negative pressure suction according to Embodiment 2 of the present invention;

[0051] Figure 11 This is a schematic diagram of the structural principle of a basket-shaped uterine lifter with negative pressure suction according to Embodiment 3 of the present invention;

[0052] Figure 12 This is a cross-sectional view of a basket-shaped uterine lifter with negative pressure suction according to Embodiment 3 of the present invention;

[0053] Figure 13 This is a schematic diagram showing the disassembled structure of a basket-shaped uterine lifter with negative pressure suction according to Embodiment 3 of the present invention;

[0054] Figure 14 This is a schematic diagram of the integrated check valve in this invention;

[0055] Figure 15 This is a schematic diagram of the structure of the inflatable negative pressure suction cup in this invention.

[0056] Explanation of the labels in the diagram:

[0057] 1. Negative pressure suction cup; 1-1. Inflation chamber; 1-2. Inflation tube; 2. Extension tube; 3. Tube closing device; 3'. One-way valve; 4. Negative pressure generator; 5. Basket-shaped hollow uterine lifting cup; 5-1. Hollow hole; 5-2. Screw hole; 6. Longitudinal uterine lifting rod; 6-1. Stud; 6-2. Through groove. Detailed Implementation

[0058] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings and embodiments.

[0059] [Example 1]

[0060] Combination Figure 1 As shown, a basket-shaped uterine lifter with negative pressure suction in this embodiment includes:

[0061] A negative pressure suction cup 1, which has a cup body structure, has a cup opening at one end that can be fitted onto the cervix. An extension tube 2, which is a flexible tube, is connected to the end of the negative pressure suction cup 1 that is furthest from the cup opening. The extension tube 2 communicates with the inner cavity of the negative pressure suction cup 1. A tube-closing device 3 is provided on the extension tube 2, which can open or close the extension tube 2 to maintain a negative pressure state in the negative pressure suction cup 1.

[0062] A negative pressure generator 4 is detachably connected to the end of the extension tube 2 to generate negative pressure suction in the negative pressure suction cup 1; the negative pressure generator 4 is connected to the negative pressure suction cup 1 through the extension tube 2, and can draw air to generate negative pressure suction inside the negative pressure suction cup 1, thereby enabling it to adhere to the cervix; and,

[0063] A basket-shaped, perforated uterine lifting cup 5 has several perforated holes 5-1 on its side wall. The basket-shaped, perforated uterine lifting cup 5 can be fitted over the outside of a negative pressure suction cup 1. An extension tube 2 can pass through the perforated holes 5-1 of the basket-shaped, perforated uterine lifting cup 5. The basket-shaped, perforated uterine lifting cup 5 can indicate the position of the fornix and lift the uterus. The extension tube 2 passes through the perforated holes 5-1 of the basket-shaped, perforated uterine lifting cup 5 without affecting the adsorption of the negative pressure suction cup 1.

[0064] A vertical lifting rod 6 is provided, one end of which is connected to the end of the basket-shaped hollow lifting cup 5 away from the cup mouth. The basket-shaped hollow lifting cup 5 can be operated through the vertical lifting rod 6.

[0065] Compared to existing uterine manipulators, this embodiment features a basket-shaped uterine manipulator with negative pressure suction. It cleverly incorporates a negative pressure suction cup 1 that works in conjunction with the basket-shaped hollowed-out uterine manipulator cup 5. While retaining the dome indication and uterine lifting function of the basket-shaped hollowed-out uterine manipulator cup 5, the negative pressure suction cup 1 eliminates the need for a guide rod, thus avoiding the risk of uterine perforation and the possibility of tumor cell dissemination due to compression during endometrial cancer surgery. Simultaneously, the negative pressure suction cup 1 prevents tumor cells and pathogenic microorganisms from flowing out of the cervix and contaminating the vaginal stump, completely eliminating the possibility of implantation of tumors in the vaginal stump and pelvic cavity. This reduces the incidence of postoperative fever, vaginal stump cellulitis, and pelvic abscess, achieving perfect adherence to tumor-free and aseptic principles. Furthermore, the presence of the negative pressure suction cup 1 ensures the correct insertion of the basket-shaped hollowed-out uterine manipulator cup 5 into the cervix, preventing the possibility of misalignment and incorrect dome indication when using the uterine manipulator cup alone, reducing the risk of collateral damage. It also avoids damage to the cervical canal structure, facilitating postoperative pathological evaluation, completely avoiding possible forceful manipulation, and making the surgical procedure simpler and more convenient.

[0066] Reference Figure 3 As shown, in this embodiment, the negative pressure suction cup 1 has a large-mouthed, trumpet-shaped structure, allowing it to better fit the cervix and be placed over it. By connecting to the negative pressure generator 4, it generates negative pressure, thereby adsorbing and positioning the cervix. The negative pressure suction cup 1 is preferably made of soft medical-grade silicone, which has a certain elasticity, facilitates intraoperative manipulation, and will not damage the cervical canal structure. The edge of the cup opening of the negative pressure suction cup 1 has a ring-shaped ridge. Preferably, the negative pressure suction cup 1 and the extension tube 2 are designed as a single unit, i.e., the extension tube 2 is integrally connected to the bottom of the negative pressure suction cup 1, ensuring that the extension tube 2 will not detach from the negative pressure suction cup 1 when pulled downwards.

[0067] Reference Figure 1 As shown, in this embodiment, the aforementioned tube-closing device 3 is at least one clamp disposed on the extension tube 2, which can clamp or open the extension tube 2. This clamp can be an existing medical anti-flow clamp, which can control the opening or closing of the extension tube 2. When it is necessary to remove the negative pressure generator 4, the tube-closing device 3 can be used to close the extension tube 2 to ensure the negative pressure state of the negative pressure suction cup 1; when connecting the negative pressure generator 4, the tube-closing device 3 can be opened to allow the extension tube 2 to conduct, and the negative pressure suction of the negative pressure suction cup 1 can be increased by drawing air through the negative pressure generator 4. Using the aforementioned tube-closing device 3, the structure is simple and the operation is convenient. Furthermore, the tube-closing device 3 has a simple structure and small size, and can pass through the perforated hole 5-1 of the basket-shaped perforated uterine cup 5.

[0068] The aforementioned negative pressure generator 4 is a device capable of generating negative pressure through suction. In this embodiment, a negative pressure drainage ball can be used. This negative pressure drainage ball is an existing product, featuring a bulb. By pressing the bulb, internal air or liquid is expelled to create negative pressure suction. It has a simple structure, is easy to use, and is a mature, safe, and reliable product. The negative pressure drainage ball and the extension tube 2 can be connected using a Luer connector or similar structure, facilitating quick assembly and disassembly of the negative pressure drainage ball and the extension tube 2.

[0069] like Figure 1 and Figure 2 As shown, the basket-shaped hollow uterine cup 5 is larger than the negative pressure suction cup 1. The basket-shaped hollow uterine cup 5 has a short front lip and a long rear lip. After the basket-shaped hollow uterine cup 5 is fitted onto the outside of the negative pressure suction cup 1, the front lip of the basket-shaped hollow uterine cup 5 is flush with or higher than the outer edge of the negative pressure suction cup 1, allowing the basket-shaped hollow uterine cup 5 to accurately indicate the position of the fornix and lift the uterus. The longitudinal uterine lifting rod 6 and the basket-shaped hollow uterine cup 5 can be connected by threads. Specifically, a screw hole 5-2 can be provided at the bottom of the basket-shaped hollow uterine cup 5, and a stud 6-1 can be provided at the end of the longitudinal uterine lifting rod 6. The stud 6-1 is screwed into the screw hole 5-2 to connect the longitudinal uterine lifting rod 6 and the basket-shaped hollow uterine cup 5, making assembly convenient. The basket-shaped hollow uterine cup 5 can be made of PPS (polyphenylene sulfide), which has good mechanical properties and can be reused. The basket-shaped hollow uterine lifter cup 5 can use existing hollow uterine lifter cup products, and its usage in TLH procedures is the same as that of ordinary cup-shaped uterine lifters. The structure of the longitudinal uterine lifter rod 6 can also be similar to that of the uterine lifter rods of existing uterine lifters, facilitating the lifting of the uterus during surgery.

[0070] This embodiment of a basket-shaped uterine manipulator with negative pressure suction provides another, simpler, and more convenient solution. The following is in conjunction with... Figures 4 to 7 Explain its working principle and surgical procedure:

[0071] like Figure 4As shown, the negative pressure suction cup 1 with the extension tube 2 is placed on the cervix (the extension tube 2 has a clip), and a negative pressure drainage ball is connected to create negative pressure, causing the negative pressure suction cup 1 to adhere to the cervix. The clip on the extension tube 2 is then closed, and the negative pressure drainage ball is removed. The vagina is then thoroughly disinfected by rinsing with diluted complexed iodine saline. This effectively removes any potentially contaminated tumor cells and pathogenic microorganisms.

[0072] like Figure 5 As shown, a basket-shaped hollow uterine lifting cup 5 is inserted into the negative pressure suction cup 1. A longitudinal uterine lifting rod 6 is threadedly connected to the bottom of the basket-shaped hollow uterine lifting cup 5, and the extension tube 2 is led out through the hollow hole 5-1 of the basket-shaped hollow uterine lifting cup 5. In the TLH procedure, the use of the basket-shaped hollow uterine lifting cup 5 is the same as that of a regular cup-shaped uterine lifting device, and will not be elaborated further.

[0073] like Figure 6 As shown, during the TLH procedure, after the fornix is ​​incised and the uterus is removed through the vagina, the extension tube 2 is kept pulled downwards, and the basket-shaped hollow uterine cup 5 is removed.

[0074] like Figure 7 As shown, pull the extension tube 2 downwards to expose the cervix and uterus, and then use forceps to remove the uterus.

[0075] [Example 2]

[0076] This embodiment of the basket-shaped uterine lifting device with negative pressure suction has the same basic structure and working principle as Embodiment 1, except that:

[0077] Reference Figures 8 to 10 As shown, in this embodiment, the negative pressure suction cup 1 and the extension tube 2 are formed as a single unit, with the extension tube 2 formed at the lower end of the negative pressure suction cup 1. The longitudinal uterine lifter 6 is a hollow structure, and has a through groove 6-2 on its side wall that allows the extension tube 2 to move freely. The lower part of the basket-shaped hollow uterine lifter 5 has a bottom hole that communicates with the longitudinal uterine lifter 6. The extension tube 2 passes through the bottom hole of the basket-shaped hollow uterine lifter 5 into the longitudinal uterine lifter 6, and can move freely within the through groove 6-2. This eliminates the need for bending the extension tube 2, preventing blockage due to bending; and the extension tube 2 is largely unrestricted by the longitudinal uterine lifter 6, facilitating surgical operation and allowing for flexible manipulation.

[0078] In addition, in this embodiment, a one-way valve 3' replaces the tube-closing device 3. Specifically, a one-way valve 3' capable of unidirectional flow to draw negative pressure is provided on the extension tube 2. This one-way valve 3' is open during the suction process of the negative pressure generator 4, causing the negative pressure suction cup 1 to generate negative pressure suction. After the negative pressure generator 4 is removed, the one-way valve 3' is closed, maintaining the negative pressure suction of the negative pressure suction cup 1. In this embodiment, the one-way valve 3' is a detachable one-way valve installed at the end of the extension tube 2. When it is necessary to release the pressure in the negative pressure suction cup 1, the one-way valve 3' can be removed. The aforementioned negative pressure generator 4 can be a suction syringe, and one end of the suction syringe can be connected to one end of the one-way valve 3' via a flexible tube.

[0079] The working principle and surgical procedure of the basket-shaped uterine lifter with negative pressure suction in this embodiment are similar to those in Embodiment 1.

[0080] First, the negative pressure suction cup 1 with the extension tube 2 is placed on the cervix, and a one-way valve 3' and a negative pressure generator 4 (such as an aspiration syringe) are connected to create negative pressure, causing the negative pressure suction cup 1 to adhere to the cervix. Then, the vagina is thoroughly disinfected by rinsing with diluted complexed iodine saline solution. This effectively removes any potentially contaminated tumor cells and pathogenic microorganisms.

[0081] Then, a basket-shaped hollow uterine lifting cup 5 is inserted into the negative pressure suction cup 1. A longitudinal uterine lifting rod 6 is threadedly connected to the bottom of the basket-shaped hollow uterine lifting cup 5. An extension tube 2 passes through the bottom hole of the basket-shaped hollow uterine lifting cup 5, enters the longitudinal uterine lifting rod 6, and is then led out. In the TLH procedure, the use of the basket-shaped hollow uterine lifting cup 5 is the same as that of a regular cup-shaped uterine lifting device; further details will not be provided.

[0082] During TLH surgery, after incising the fornix and removing the uterus vaginally, remove the basket-shaped perforated uterine lifter cup 5, keep the extension tube 2 pulled downwards to expose the cervix and uterus, and then clamp and remove the uterus. If negative pressure suction cup 1 needs to be depressurized, simply remove the one-way valve 3'.

[0083] [Example 3]

[0084] This embodiment of a basket-shaped uterine lifting device with negative pressure suction has the same basic structure and working principle as Embodiments 1 and 2, but differs in that:

[0085] Reference Figures 11 to 14 As shown, in this embodiment, the negative pressure suction cup 1 and the extension tube 2 are formed as a single unit, with the extension tube 2 formed at the lower end of the negative pressure suction cup 1. The longitudinal lifting rod 6 is a hollow rod through which the extension tube 2 can pass. The lower part of the basket-shaped hollow lifting cup 5 has a bottom hole that communicates with the longitudinal lifting rod 6. The extension tube 2 passes through the bottom hole of the basket-shaped hollow lifting cup 5 into the longitudinal lifting rod 6 and exits from the lower part of the longitudinal lifting rod 6. In this way, the extension tube 2 does not need to be bent, avoiding blockage caused by bending.

[0086] In addition, the one-way valve 3' in this embodiment is an integrated one-way valve installed at the end of the extension tube 2. This integrated one-way valve includes a conical hole at the end of the extension tube 2. The opening of the conical hole is larger on the side facing the end of the extension tube 2. A ball bearing is provided at the conical hole, and the ball bearing has a certain amount of room to move within the conical hole. When a negative pressure generator 4 is connected to the end of the extension tube 2, the negative pressure generator 4 draws gas outward. At this time, the ball bearing opens the conical hole, maintaining unobstructed suction. When the negative pressure generator 4 is removed, due to the negative pressure suction, the ball bearing moves towards the smaller opening of the conical hole, blocking the conical hole, thereby maintaining the negative pressure state of the negative pressure suction cup 1. (Refer to...) Figure 14 As shown, the extension tube 2 has a cut-off position before the one-way valve 3'. By cutting the extension tube 2, the integrated one-way valve can be removed to release the pressure of the negative pressure suction cup 1. That is, when it is necessary to release the pressure of the negative pressure suction cup 1, the extension tube 2 can be cut off from the cut-off position. In this embodiment, the negative pressure generator 4 can be a suction syringe, which can be directly connected to the end of the extension tube 2.

[0087] [Example 4]

[0088] This embodiment of a basket-shaped uterine lifting device with negative pressure suction has the same basic structure and working principle as embodiments 1 to 3, except that:

[0089] Reference Figure 15 As shown in this embodiment, to accommodate cervical sizes of different dimensions, the negative pressure suction cup 1 is made of a soft material, and its cup wall has a hollow inflation chamber 1-1. An inflation tube 1-2, connecting to the inflation chamber 1-1, is also provided on the cup wall of the negative pressure suction cup 1. The inflation tube 1-2 can be combined with the extension tube 2 to form a double-lumen tube, or it can be independent. The inflation tube 1-2 can be led out along with the extension tube 2, or it can be led out from the perforated hole 5-1 of the basket-shaped perforated uterine cup 5. By inflating the inflation chamber 1-1, the size of the negative pressure suction cup 1 can be changed, thus adapting to different cervical sizes and ensuring that the negative pressure suction cup 1 can stably adsorb the cervix without leakage. This also increases the toughness of the cup wall of the negative pressure suction cup 1. Alternatively, a tube closure device 3 or a one-way valve 3' can be installed on the inflation tube 1-2 to ensure that the inflation chamber 1-1 does not depressurize during the procedure. It should be noted that the one-way valve 3' of the inflation tube 1-2 is open in the opposite direction to the one-way valve 3' of the extension tube 2.

[0090] It is worth mentioning that the negative pressure generator 4 is not limited to the aforementioned negative pressure drainage ball and aspiration syringe, but can also use other existing devices or instruments that can generate negative pressure.

[0091] This invention provides a basket-shaped uterine manipulator with negative pressure suction, which achieves perfect adherence to the principles of tumor-free and aseptic operation by introducing a negative pressure suction cup. Simultaneously, it improves upon the currently widely used cup-type uterine manipulator by replacing it with a basket-shaped hollow uterine manipulator cup, retaining its fornix indication and uterine lifting function while making the introduction of the negative pressure suction cup possible. Specific advantages compared to existing uterine manipulators are as follows:

[0092] (1) Perfectly implement the principles of tumor-free and aseptic techniques:

[0093] a. After inserting the negative pressure suction cup, rinse and disinfect the vagina thoroughly with diluted complexed iodine saline to remove any possible tumor cells and pathogens.

[0094] b. The basket-shaped uterine lifter with negative pressure suction avoids the use of a central guide rod, thus avoiding the risk of uterine perforation and the possibility of tumor cells being squeezed and spread during endometrial cancer surgery.

[0095] c. During the vaginal removal of the uterus after TLH surgery, the negative pressure suction cup can prevent tumor cells and pathogenic microorganisms from flowing out of the cervix and contaminating the vaginal stump.

[0096] The above methods completely eliminate the possibility of vaginal stump and pelvic tumor implantation, and can also reduce the incidence of postoperative fever, vaginal stump cellulitis, and pelvic abscess.

[0097] (2) For patients with cervical cancer, a basket-shaped uterine lifter with negative pressure suction is inserted before the vaginal wall is cut at the end of the operation. This avoids the possible shedding and implantation of tumor cells that may be caused by the cervix being exposed to the pelvic cavity. Compared with vaginal sutures or vaginal ligatures, the basket-shaped uterine lifter with negative pressure suction provides another simpler and more convenient solution. At the same time, the basket-shaped hollow uterine lifter cup can be used to indicate the length of vaginal resection.

[0098] (3) By avoiding the insertion of the cervical fixation device, the cervical canal structure can be avoided, which is beneficial for postoperative pathological evaluation. It completely avoids possible violent operation and makes the surgical operation simpler and more convenient.

[0099] (4) The presence of the negative pressure suction cup ensures that the basket-shaped hollow uterine cup is correctly inserted into the cervix, avoiding the possibility of displacement of the uterine cup when using the uterine cup alone, indicating the wrong "fornix", and reducing the risk of collateral damage.

[0100] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A basket-shaped uterine lifter with negative pressure suction, characterized in that: include A negative pressure suction cup (1), wherein an extension tube (2) is connected to one end of the negative pressure suction cup (1) away from the cup opening, and the extension tube (2) is provided with a tube closure device (3) that can open or close the extension tube (2) or a one-way valve (3') that can conduct one-way flow to draw negative pressure; the negative pressure suction cup (1) is made of soft material, and the cup wall of the negative pressure suction cup (1) has a hollow air cavity (1-1), and the cup wall of the negative pressure suction cup (1) is also provided with an air inlet tube (1-2) that connects to the air cavity (1-1); and, A negative pressure generator (4), said negative pressure generator (4) being detachably connected to the end of the extension tube (2), is used to generate negative pressure suction in the negative pressure suction cup (1); and, A basket-shaped hollow uterine cup (5) has several hollow holes (5-1) on its side wall. The basket-shaped hollow uterine cup (5) can be fitted onto the outside of a negative pressure suction cup (1). The extension tube (2) can pass through the hollow holes (5-1) or the bottom hole of the basket-shaped hollow uterine cup (5). A longitudinal uterine lifting rod (6) is provided, one end of which is connected to the end of a basket-shaped hollow uterine lifting cup (5) away from the cup mouth.

2. The basket-shaped uterine lifter with negative pressure suction according to claim 1, characterized in that: The negative pressure suction cup (1) has a large cup opening and a funnel-shaped structure.

3. The basket-shaped uterine lifter with negative pressure suction according to claim 2, characterized in that: The negative pressure suction cup (1) and the extension tube (2) are formed as an integral structure.

4. The basket-shaped uterine lifter with negative pressure suction according to claim 1, characterized in that: The tube closing device (3) is at least one clamp provided on the extension tube (2), which can clamp or open the extension tube (2).

5. The basket-shaped uterine lifter with negative pressure suction according to claim 1, characterized in that: The check valve (3') is a detachable check valve or an integrated check valve installed at the end of the extension pipe (2). When an integrated check valve is used, there is a shearing position on the extension pipe (2) before the check valve (3'). The integrated check valve is removed by shearing the extension pipe (2) to release the pressure of the negative pressure suction cup (1).

6. The basket-shaped uterine lifter with negative pressure suction according to claim 1, characterized in that: The negative pressure generator (4) is a negative pressure drainage ball or a suction syringe.

7. The basket-shaped uterine lifter with negative pressure suction according to claim 1, characterized in that: The basket-shaped hollow uterine cup (5) is larger than the negative pressure suction cup (1). The cup mouth of the basket-shaped hollow uterine cup (5) is designed with a short front lip and a long back lip. After the basket-shaped hollow uterine cup (5) is fitted on the outside of the negative pressure suction cup (1), the front lip of the cup mouth of the basket-shaped hollow uterine cup (5) is level with or higher than the outer edge of the cup mouth of the negative pressure suction cup (1).

8. The basket-shaped uterine lifter with negative pressure suction according to claim 7, characterized in that: The longitudinal lifting rod (6) and the basket-shaped hollow lifting cup (5) are connected by threads.

9. The basket-shaped uterine lifter with negative pressure suction according to claim 7, characterized in that: The longitudinal lifting rod (6) is a hollow rod through which the extension tube (2) can pass; or, the side wall of the longitudinal lifting rod (6) has a through groove (6-2) that allows the extension tube (2) to move freely.

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