A retrieval device for use in laparoscopic surgery

Abstract

The application provides a taking device for abdominal cavity surgery, which comprises a shell, a handle arranged on the shell, a taking opening and a discharging opening arranged on the shell, a collecting assembly arranged on the discharging opening, an operating rod hinged in the shell, the operating rod being swingable within a first angle and a second angle, and a taking ring slidably arranged on the taking opening. The operating rod and the taking ring are connected through a first driving mechanism, so as to convert the swing of the operating rod within the first angle into the sliding of the taking ring. A push block is arranged on the opposite side of the discharging opening in the shell and is liftable, and the operating rod and the push block are connected through a second driving mechanism, so as to convert the swing of the operating rod within the second angle into the lifting of the push block within the taking ring after the taking ring is slid to be retracted. During the taking process, the taking device does not need to be removed from the abdominal cavity of the patient after each time of taking out foreign matters, and the taking device can be used for multiple times of taking out foreign matters after being placed once, so that the working efficiency of taking out foreign matters in the abdominal cavity is effectively improved.

Description

Technical Field

[0001] This invention specifically relates to a retrieval device for abdominal surgery. Background Technology

[0002] Compared to other surgical treatments, laparoscopic surgery has advantages such as less surgical trauma, less postoperative pain, less impact on organ function, and fewer postoperative complications, making it very popular with patients compared to traditional surgery. Many gynecological surgeries that previously required open surgery can now be performed laparoscopically, and these laparoscopic techniques can be used for both benign and malignant diseases. After laparoscopic surgery, specialized instruments are used to remove the surgically removed tissue.

[0003] For example, Chinese invention patent No. 202111564354.5 provides a retrieval device for gynecological abdominal surgery. When in use, this retrieval device can directly divide and cut large excised pieces into small pieces, making it easier to remove the excised pieces. It eliminates the need for additional surgical instruments to cut large excised pieces, effectively reducing the difficulty of the surgery and making it convenient for use in gynecological abdominal surgery.

[0004] However, existing laparoscopic retrieval devices require the device to be removed and the retrieved object transferred to a collection device after each retrieval, making it impossible to perform multiple retrievals after a single insertion of the device, which reduces the efficiency of laparoscopic retrieval. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention proposes a retrieval device for abdominal surgery, which solves the technical problem mentioned in the background art: existing abdominal surgery retrieval devices require the device to be removed and the retrieved object transferred to a collection device after each retrieval, making it impossible to perform multiple retrievals after a single insertion of the retrieval device, thus reducing the efficiency of abdominal retrieval.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a retrieval device for abdominal surgery, comprising:

[0007] The housing has a handle at one end, and the housing has a retrieval port and a discharge port, with a collection component provided on the discharge port;

[0008] The operating lever is hinged to the housing and can swing within a first angle and a second angle.

[0009] A retrieval ring is slidably disposed on the retrieval port;

[0010] A first drive mechanism is connected to the operating lever and the picking ring to convert the swing of the operating lever within a first angle into the sliding of the picking ring;

[0011] A push block, which is vertically adjustable, is located inside the housing on the opposite side of the outlet; and

[0012] The second drive mechanism, connected to the operating lever and the push block, converts the swing of the operating lever within a second angle into driving the push block to rise and fall within the object-retrieving ring after the object-retrieving ring slides and retracts.

[0013] Preferably, the collection component includes:

[0014] A retrieval bag is provided on the outlet, and the retrieval bag is provided with a telescopic ring;

[0015] A retaining ring is provided on the outlet, and the telescopic ring is sleeved on the retaining ring; and

[0016] A protective shell is detachably mounted on the shell, and the retrieval bag is disposed inside the protective shell.

[0017] Preferably, the first driving mechanism includes:

[0018] The movable plate is slidably disposed within the housing;

[0019] A drive assembly is disposed on the operating lever and connected to the movable plate to convert the rotation of the operating lever into driving the sliding of the movable plate;

[0020] A connecting rod is disposed on the object-retrieving ring and slidably disposed within the housing; one end of the connecting rod is provided with a mounting rod; and

[0021] A linkage component is disposed at the end of the movable plate and connected to the mounting rod to drive the mounting rod to slide.

[0022] Preferably, the driving component includes:

[0023] A sliding frame is provided on the movable plate; and

[0024] The first drive column is located at one end of the operating lever and is slidably engaged within the slide frame.

[0025] Preferably, the linkage component includes:

[0026] The first guide wheel is rotatably disposed at the end of the movable plate along its axis;

[0027] The second guide wheel is rotatably disposed within the housing along its axis;

[0028] A pull rope, one end of which is connected to the housing, and the other end, after passing sequentially around the first guide wheel and the second guide wheel, is connected to the mounting rod; and

[0029] The first reset spring is connected at both ends to the connecting rod and the housing, respectively.

[0030] Preferably, a limiting block is provided inside the housing, and the mounting rod is slidably mounted on the connecting rod along its axis and connected to it through a second reset spring. During the sliding process of the mounting rod, when the object-retrieving ring abuts against the limiting block, the second reset spring is stretched, and the tension of the second reset spring is greater than that of the first reset spring.

[0031] Preferably, the second drive mechanism includes:

[0032] A drive frame is mounted on the push block, and an inclined slot is provided on the drive frame;

[0033] A guide frame is disposed at the end of the inclined groove to expand the inclined groove;

[0034] The second drive column is mounted on the first guide wheel; and

[0035] The third reset spring is connected to the drive frame and the housing.

[0036] Preferably, the retrieval ring is made of shape memory metal, and when the retrieval ring is located on the opening side of the retrieval port, its width is greater than the width of the retrieval port.

[0037] Preferably, the side wall of the retrieval port is provided with a slot, and a cutting blade is detachably engaged in the slot.

[0038] Preferably, an elastic element is provided between the operating lever and the grip.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] In use, this retrieval device is inserted into the patient's abdominal cavity. By gripping the operating lever, it swings along the hinge point with the housing. During the first swing angle, the lever drives the retrieval ring to slide across the retrieval opening via the first drive mechanism. The retrieval ring encircles the object to be retrieved and pulls it into the retrieval opening until it is fully inside the housing, thus removing the foreign object. Continuing to grip the lever and swing it at a second angle, the lever drives the pusher block to rise and fall via the second drive mechanism, pushing the foreign object out of the retrieval ring and causing it to fall into the collection assembly. Finally, resetting the handle returns the pusher block and retrieval ring to their original positions, allowing for continued retrieval. This device eliminates the need to remove the retrieval device from the patient's abdominal cavity after each retrieval; multiple retrievals can be performed with a single insertion. Its simple and convenient operation effectively improves the efficiency of abdominal retrieval. Attached Figure Description

[0041] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0042] Figure 1 This invention provides a three-dimensional structural schematic diagram of a retrieval device for abdominal surgery;

[0043] Figure 2 This is a schematic diagram of the retrieval ring in a retrieval device for abdominal surgery according to the present invention;

[0044] Figure 3 This is a schematic diagram of the internal structure of a retrieval device for abdominal surgery according to the present invention;

[0045] Figure 4 for Figure 3 Enlarged view of region a in the middle;

[0046] Figure 5 This is a schematic diagram of the pusher in a retrieval device for abdominal surgery according to the present invention;

[0047] Figure 6 This is a schematic diagram of the shell structure of a retrieval device for abdominal surgery according to the present invention;

[0048] Figure 7 for Figure 6 A schematic diagram of the structure of region b in the middle.

[0049] Figure label:

[0050] 101. Housing; 102. Pick-up port; 103. Slot; 104. Cutting blade; 105. Discharge port; 106. Snap ring; 107. Limiting block; 108. Handle;

[0051] 201. Retrieval bag; 202. Telescopic ring; 203. Protective shell;

[0052] 301. Connecting rod; 302. Picking ring; 303. Mounting rod; 304. First reset spring; 305. Second reset spring;

[0053] 401. Operating lever; 402. First drive column; 403. Movable plate; 404. Sliding frame; 405. First guide wheel; 406. Second guide wheel; 407. Pull rope; 408. Elastic element; 409. Second drive column;

[0054] 501. Push block; 502. Drive frame; 503. Inclined groove; 504. Guide frame; 505. Third reset spring. Detailed Implementation

[0055] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0056] Example:

[0057] like Figure 1 , 6 As shown, this invention provides a retrieval device for abdominal surgery, including a housing 101. A handle 108 is provided at one end of the housing 101. The housing 101 has a retrieval port 102 and a discharge port 105. The retrieval ring 302 is made of shape memory metal, and when the retrieval ring 302 is located on the opening side of the retrieval port 102, its width is greater than the width of the retrieval port 102. A slot 103 is provided on the side wall of the retrieval port 102, and a cutting blade 104 is detachably held within the slot 103.

[0058] In use, this retrieval device allows for the removal of foreign objects by inserting one end of the retrieval port 102 into the patient's abdominal cavity. During retrieval, a retrieval ring 302 is placed over the object to be removed. By controlling the sliding of the retrieval ring 302, the foreign object enters the housing 101. The retrieval ring 302 deforms after entering the retrieval port 102 and returns to its initial width after being removed, thereby reducing the width of the retrieval device housing 101 and increasing the retrieval range, thus improving the applicability of the retrieval device. Furthermore, during retrieval, the cutting blade 104 can cut the connection between the foreign object and the patient's body, quickly cutting the foreign object into pieces without the need for other cutting devices. The cutting blade 104 is replaceable, facilitating disinfection after use. The removed foreign object can be removed through the discharge port 105.

[0059] like Figure 1 , 6 As shown in Figure 7, in this embodiment, a collection assembly is provided on the outlet 105. The collection assembly includes a retrieval bag 201 disposed on the outlet 105, a telescopic ring 202 disposed on the retrieval bag 201, and a retaining ring 106 disposed at the opening of the outlet 105, with the telescopic ring 202 sleeved on the retaining ring 106. A protective shell 203 is detachably disposed on the housing 101, and the retrieval bag 201 is disposed inside the protective shell 203.

[0060] After retrieving the object, the retrieval ring 302 is retracted into the housing 101. The foreign object inside the retrieval ring 302 can then be moved into the retrieval bag 201 for collection. The retrieval bag 201 is installed via the cooperation of the telescopic ring 202 and the retaining ring 106, facilitating replacement of the retrieval bag 201. A protective shell 203 is provided to protect the retrieval bag 201, preventing it from being torn by external objects during the movement of the retrieval device, and also preventing the retrieval bag 201 from falling into the patient's body during the retrieval process.

[0061] like Figures 1 to 3 As shown, in this embodiment, an operating lever 401 is hinged to the housing 101. The operating lever 401 can swing within a first angle and a second angle. The angle at which the operating lever 401 is initially gripped and rotated is the first angle, and the angle at which the operating lever 401 is gripped and rotated further is the second angle. An elastic element 408 is provided between the operating lever 401 and the handle 108. The operating lever 401 and the picking ring 302 are connected by a first driving mechanism, which converts the swing of the operating lever 401 within the first angle into the sliding of the picking ring 302. The first driving mechanism includes a movable plate 403 slidably disposed within the housing 101. A driving assembly connected to the movable plate 403 is provided on the operating lever 401, which converts the rotation of the operating lever 401 into the sliding of the movable plate 403. The driving assembly includes a sliding frame 404 disposed on the movable plate 403, and a first driving post 402 is provided at one end of the operating lever 401. The first driving post 402 is slidably engaged within the sliding frame 404.

[0062] The object retriever can be used by gripping the operating lever 401. Gripping the lever 401 causes it to swing along its hinge point with the housing 101, which in turn moves the first drive column 402. This, in turn, through the cooperation of the first drive column 402 and the sliding frame 404, causes the movable plate 403 to slide back and forth within the housing 101. After gripping the lever 401, the elastic element 408 can be used to control the lever 401 to return to its original position, allowing it to swing back and forth within a certain angle, thereby controlling the movable plate 403 to return to its original position.

[0063] like Figure 2 , 3As shown in Figure 4, in this embodiment, the first driving mechanism further includes a connecting rod 301 on the picking ring 302. The connecting rod 301 is slidably disposed within the housing 101. One end of the connecting rod 301 is provided with a mounting rod 303. The end of the movable plate 403 is provided with a linkage assembly connected to the mounting rod 303, which drives the mounting rod 303 to slide. The linkage assembly includes a first guide wheel 405 rotatably disposed at the end of the movable plate 403 along its axis. A second guide wheel 406 is disposed within the housing 101. A pull rope 407 is also disposed within the housing 101. One end of the pull rope 407 is connected to the housing 101, and the other end passes sequentially around the first guide wheel 405 and the second guide wheel 406 before being connected to the mounting rod 303. The connecting rod 301 and the housing 101 are connected by a first return spring 304.

[0064] During the process of gripping the operating lever 401 to drive the movable plate 403 to slide, the movable plate 403 drives the first guide wheel 405 to move. This, in turn, through the cooperation of the first guide wheel 405 and the second guide wheel 406, pulls the pull rope 407, causing the mounting rod 303 and connecting rod 301 to slide, thus causing the retrieval ring 302 to slide and retract into the housing 101 to complete the retrieval. Furthermore, during the sliding process, the connecting rod 301 can stretch the first reset spring 304. After releasing the operating lever 401, the first reset spring 304 resets the connecting rod 301, controlling the retrieval ring 302 to extend out of the housing 101 for the next retrieval.

[0065] like Figure 2 , 3 As shown in Figures 4 and 7, in this embodiment, a limiting block 107 is provided inside the housing 101, and the mounting rod 303 is slidably mounted on the connecting rod 301 along its axis and connected to it through a second reset spring 305. During the sliding process of the mounting rod 303, when the object-retrieving ring 302 abuts against the limiting block 107, the second reset spring 305 is stretched. The tension of the second reset spring 305 is greater than the tension of the first reset spring 304.

[0066] During the sliding process of the operating lever 401 driving the connecting rod 301 and the mounting rod 303, the position of the picking ring 302 can be limited by the limiting block 107, so that the picking ring 302 can stop moving when it moves directly above the outlet 105. Furthermore, since the tension of the second reset spring 305 is greater than that of the first reset spring 304, the deformation of the second reset spring 305 is less than that of the first reset spring 304 during the sliding process of the mounting rod 303. When the picking ring 302 abuts against the limiting block 107, continuing to grip the operating lever 401 allows the mounting rod 303 to continue sliding, thereby stretching the second reset spring 305.

[0067] like Figure 3 , 5As shown, in this embodiment, a liftable push block 501 is provided inside the housing 101 on the opposite side of the outlet 105. The operating lever 401 and the push block 501 are connected by a second drive mechanism. After the retrieval ring 302 slides and retracts, the second drive mechanism converts the swing of the operating lever 401 within a second angle into driving the push block 501 to rise and fall within the retrieval ring 302. The second drive mechanism includes a drive frame 502 provided on the push block 501. The drive frame 502 has an inclined groove 503. A guide frame 504 is provided at the end of the inclined groove 503 to expand the opening of the inclined groove 503. A second drive column 409 is provided on the first guide wheel 405. The drive frame 502 and the housing 101 are connected by a third return spring 505.

[0068] After retracting the retrieval ring 302 into the housing 101, continue to grip the operating lever 401 to make it swing within the second angle. When the operating lever 401 moves, it continues to control the sliding of the movable plate 403 to drive the first guide wheel 405 to move. This causes the second drive column 409 on the first guide wheel 405 to be inserted into the inclined groove 503 through the guide clip of the guide frame 504. The cooperation between the second drive column 409 and the inclined groove 503 drives the drive frame 502 to descend, thereby driving the push block 501 to descend and push out the object taken out of the retrieval ring 302 so that the foreign object falls into the retrieval bag 201. The push block 501 can also stretch the third reset spring 505 when it moves. After the operating lever 401 is released, the operating lever 401 controls the second drive column 409 to disengage from the inclined groove 503 during the reset process under the action of the elastic element 408. Under the reset capability of the third reset tension spring 505, the push block 501 is controlled to rise and reset, and then the retrieval ring 302 is reset. This avoids interference between the movement of the retrieval ring 302 and the push block 501, so that the retrieval device can be used to retrieve objects multiple times after a single insertion into the patient's abdominal cavity.

[0069] Specific usage and beneficial effects of the present invention:

[0070] When using this retrieval device, its retrieval end is placed into the patient's abdominal cavity. By gripping the operating rod 401, it swings along the hinge point with the housing 101. During the swing of the operating rod 401 at the first angle, the cooperation between the first drive column 402 and the sliding frame 404 controls the sliding of the movable plate 403 within the housing 101, thereby driving the first guide wheel 405 to move. During the movement, the first guide wheel 405, in cooperation with the pull rope 407 and the second guide wheel 406, pulls the connecting rod 301 and the mounting rod 303 to slide, thereby driving the retrieval ring 302 to slide on the retrieval port 102. After the retrieval ring 302 covers the object to be retrieved, it is pulled into the retrieval port 102 until the retrieval ring 302 is completely inside the housing 101, thus completing the removal of the foreign object.

[0071] Continue gripping the operating lever 401 to make it swing within the second angle. As the lever 401 moves, it continues to drive the movable plate 403 and the first guide wheel 405, thereby pulling the mounting rod 303 to stretch the second reset spring 305. This causes the second drive rod to engage in the inclined groove 503. The cooperation between the second drive rod and the inclined groove 503 drives the push block 501 to rise and fall, pushing the foreign object out of the retrieval ring 302 and causing it to fall into the retrieval bag 201. Finally, under the action of the elastic element 408, the handle 108 is reset, thus resetting the push block 501 and the retrieval ring 302, allowing the retrieval work to continue. After multiple retrievals, only the retrieval bag 201 needs to be removed. Using this retrieval device, it is not necessary to remove the device from the patient's abdominal cavity after each foreign object removal. Multiple retrievals can be performed with a single insertion, and the operation is simple and convenient, effectively improving the efficiency of abdominal retrieval.

[0072] The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. A retrieval device for abdominal surgery, characterized in that, Including: The housing (101) has a handle (108) at one end. The housing (101) has a retrieval port (102) and an outlet port (105). The outlet port (105) is equipped with a collection component. The operating lever (401) is hinged to the housing (101) and can swing within a first angle and a second angle; The object retrieval ring (302) is slidably disposed on the object retrieval port (102); A first drive mechanism is connected to the operating lever (401) and the picking ring (302) to convert the swing of the operating lever (401) within a first angle into the sliding of the picking ring (302); The push block (501) is vertically and vertically disposed inside the housing (101) on the opposite side of the outlet (105); and The second drive mechanism is connected to the operating lever (401) and the push block (501) to convert the swing of the operating lever (401) within the second angle into driving the push block (501) to rise and fall within the picking ring (302) after the picking ring (302) slides and retracts. The first driving mechanism includes: The movable plate (403) is slidably disposed within the housing (101); A drive assembly is disposed on the operating lever (401) and connected to the movable plate (403) to convert the rotation of the operating lever (401) into driving the movable plate (403) to slide. A connecting rod (301) is disposed on the object-retrieving ring (302) and slidably disposed within the housing (101). One end of the connecting rod (301) is provided with an mounting rod (303). A linkage component is disposed at the end of the movable plate (403) and connected to the mounting rod (303) to drive the mounting rod (303) to slide; The linkage components include: The first guide wheel (405) is rotatably disposed at the end of the movable plate (403) along its axis; The second guide wheel (406) is rotatably disposed within the housing (101) along its axis; A pull rope (407) has one end connected to the housing (101), and the other end passes sequentially around the first guide wheel (405) and the second guide wheel (406) before connecting to the mounting rod (303); and The first reset spring (304) is connected at both ends to the connecting rod (301) and the housing (101) respectively; The second drive mechanism includes: A drive frame (502) is mounted on the push block (501), and a slanted groove (503) is provided on the drive frame (502). A guide frame (504) is provided at the end of the inclined groove (503) to expand the inclined groove (503). The second drive column (409) is disposed on the first guide wheel (405); and The third reset spring (505) is connected to the drive frame (502) and the housing (101).

2. The retrieval device for abdominal surgery according to claim 1, characterized in that, The collection components include: A retrieval bag (201) is provided on the outlet (105), and a telescopic ring (202) is provided on the retrieval bag (201). A retaining ring (106) is disposed on the outlet (105), and the telescopic ring (202) is sleeved on the retaining ring (106); and The protective shell (203) is detachably mounted on the housing (101), and the retrieval bag (201) is disposed inside the protective shell (203).

3. The retrieval device for abdominal surgery according to claim 1, characterized in that, The driving component includes: A sliding frame (404) is disposed on the movable plate (403); and The first drive column (402) is located at one end of the operating lever (401) and is slidably engaged in the slide frame (404).

4. The retrieval device for abdominal surgery according to claim 1, characterized in that: The housing (101) is provided with a limiting block (107). The mounting rod (303) is slidably mounted on the connecting rod (301) along its axis and connected to it through a second reset spring (305). When the mounting rod (303) slides, the second reset spring (305) is stretched after the object picking ring (302) abuts against the limiting block (107). The tension of the second reset spring (305) is greater than that of the first reset spring (304).

5. A retrieval device for abdominal surgery according to claim 1, characterized in that: The object retrieval ring (302) is made of shape memory metal. When the object retrieval ring (302) is located on the opening side of the object retrieval port (102), its width is greater than the width of the object retrieval port (102).

6. A retrieval device for abdominal surgery according to claim 1, characterized in that: The side wall of the retrieval port (102) is provided with a slot (103), and a cutting blade (104) is detachably locked in the slot (103).

7. The retrieval device for abdominal surgery according to claim 1, characterized in that: An elastic element (408) is provided between the operating lever (401) and the grip (108).

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