A laparoscopic difficult specimen retrieval bag

Abstract

The present application relates to the field of retrieval bags, and in particular to a laparoscopic difficult specimen retrieval bag. A laparoscopic difficult specimen retrieval bag includes a head with an opening on one side, a body, and a neck connecting the head and the body, the body including an inner cavity and an outer cavity, the inner cavity is connected to the neck, the outer cavity is provided with an air inlet and an air outlet, the air inlet is used to communicate with the inner cavity, and the air outlet is used to communicate with the outside. During the process of removing the specimen, the inner cavity is ventilated so that the air pressure in the inner cavity of the retrieval bag is always maintained greater than the air pressure in the abdominal cavity and greater than the external air pressure during the operation, so that both the inner cavity and the abdominal cavity have enough space for surgeons to perform surgical operations, and surgical instruments can be used to accurately and quickly adjust the angle of the specimen or efficiently and regularly divide it.

Description

Technical Field

[0001] The present application relates to the field of retrieval bags, and in particular to a laparoscopic difficult specimen retrieval bag. Background Art

[0002] Laparoscopic appendectomy and cholecystectomy are common surgical procedures worldwide. In the abdominal cavity with 13mmHG pressure CO2 pneumoperitoneum created by an artificial pneumoperitoneum machine, holes are punched at different locations on the abdominal wall, corresponding puncture devices are inserted, and laparoscopic surgical instruments are placed in the puncture devices to complete the established surgical steps. Compared with traditional open laparotomy, it has less trauma to the abdominal wall, can achieve no surgical incision on the abdominal wall, and the patient recovers quickly after surgery.

[0003] After the operation, the appendix or gallbladder specimen, if the size is appropriate, can be directly taken out from the puncture of the laparoscopic surgery, or placed in a bag with the function of isolating contamination. The specimen and the bag can be directly taken out from the hole of the abdominal wall puncture. Both methods can avoid direct contact between the specimen and the tissue at the puncture of the human body, which may cause microbial contamination and secondary infection. However, because the largest puncture hole in conventional surgery is only 12mm, there are a considerable number of difficult specimens in clinical practice, such as difficult appendix specimens due to swelling, stiffness, and buckling; and difficult gallbladder specimens, because the number of gallstones is large, or the size of a single gallstone is large, so it is impossible to quickly and completely remove it from the hole of the abdominal wall puncture.

[0004] According to the current clinical reality, surgeons will face two options to achieve the purpose of removing difficult specimens. Option 1: Enlarge the 12mm puncture hole of the abdominal wall to a length sufficient to match the specimen. The disadvantages of this method: First, for the operation, the extended incision and the suturing of the extended incision after the operation will inevitably increase the operation time; second, for the patient, there will still be a long surgical incision after the operation, and even incision-related complications such as incision infection, poor healing, and incisional hernia. Option 2: Use sharp instruments such as forceps to "fragment" the original complete surgical specimen in a traditional specimen bag that has been compressed and collapsed under the action of 13mmHG pressure CO2 pneumoperitoneum through "irregular, inaccurate fragmentation cutting, pulling, tearing, cutting" and other operations, thereby achieving the reduction of specimen volume, and then remove the fragmented specimens in batches. Although the incision extension is avoided, the specimen is "broken into pieces and unrecognizable". The disadvantages are: first, because of the 13mmHG high-pressure pneumoperitoneum in the human abdominal cavity and the external pulling effect at the opening of the bag, various traditional bags will be flattened and collapsed, which will not provide enough necessary space for surgeons to perform accurate operations, thus inevitably prolonging the overall operation time; second, in clinical practice, some appendix and gallbladder malignant tumors exist latently, combined with acute or chronic inflammation. Fragmented specimens will create unnecessary medical risks for the accuracy of postoperative pathological detection in certain circumstances, such as causing an irreversible passive situation for the pathological TNM staging that guides the precise treatment of malignant tumors and evaluates survival prognosis. Summary of the invention

[0005] In order to remove difficult specimens from the body efficiently and completely without extending the surgical incision, the present application provides a laparoscopic difficult specimen retrieval bag.

[0006] The present application provides a laparoscopic difficult specimen retrieval bag, which adopts the following technical solution:

[0007] A laparoscopic difficult specimen retrieval bag comprises a head with an opening on one side, a body, and a neck connecting the head and the body, wherein the body comprises an inner cavity and an outer cavity, wherein the inner cavity is connected to the neck, and the outer cavity is provided with an air inlet and an air outlet, wherein the air inlet is used to be connected to the inner cavity, and the air outlet is used to be connected to the outside.

[0008] By adopting the above technical solution, when in use, after the sample bag is placed into the abdominal cavity through the puncture cannula, the sample bag is unfolded and the specimen is placed into the inner cavity of the sample bag. Then the head and neck of the sample bag are pulled out of the body surface from the puncture cannula, the pneumoperitoneum is temporarily closed, and after the puncture cannula is removed, the puncture cannula is immediately reinserted into the sample bag from the opening of the head, and the pneumoperitoneum is reopened. After the gas enters the inner cavity loaded with the specimen through the puncture cannula, the air pressure inside the inner cavity is greater than the air pressure in the external abdominal cavity, so that the inner cavity is unfolded to form a sufficiently large operating space, and the surgical instrument can accurately and quickly adjust the angle of the specimen or efficiently and regularly divide it. At the same time, part of the gas entering the inner cavity will enter the outer cavity through the air inlet and be released into the abdominal cavity through the air outlet, so that the air pressure in the abdominal cavity is also maintained at a state greater than the external air pressure, so that sufficient air cavity space is formed in the abdominal cavity. In this process, since the puncture holes on the abdominal wall are not completely closed, the air in the abdominal cavity will also be continuously released to the outside along the puncture holes on the abdominal wall, so that during the operation, the air pressure in the inner cavity of the retrieval bag is always maintained greater than the abdominal cavity air pressure and greater than the external air pressure, so that both the inner cavity and the abdominal cavity have enough space to provide surgeons with surgical operations.

[0009] Preferably, a memory metal ring is provided at the head opening for enabling the retrieval bag to automatically and elastically unfold.

[0010] By adopting the above technical solution, the memory metal ring is used to enable the retrieval bag to be automatically expanded in the abdominal cavity, and at the same time, it can be compressed when passing through the puncture cannula without affecting the retrieval bag passing through the puncture cannula.

[0011] Preferably, a diaphragm is provided in the inner cavity to separate the inner cavity into an upper cavity and a lower cavity, and pores or holes are provided on the diaphragm.

[0012] By adopting the above technical solution, the upper and lower chambers separated by the diaphragm can allow the specimen tissue to remain in the upper chamber, while the specimen's inherent dirty liquid, such as bile, pus, blood, and exudate from the gallbladder, and pus, blood, and exudate from the appendix, can enter the lower chamber through the diaphragm for collection.

[0013] Preferably, the air inlet hole is connected to a position of the inner cavity near the bottom of the upper cavity and above the diaphragm.

[0014] By adopting the above technical solution, the air inlet is set above the diaphragm, so that the gas needs to pass through a large rising space when entering the outer cavity through the air inlet and being discharged from the air outlet, and it is not easy to bring out the dirty liquid. At the same time, it is located above the diaphragm so that the dirty liquid is not easy to enter the outer cavity, further reducing the possibility of the dirty liquid being brought out into the abdominal cavity and contaminating the abdominal cavity.

[0015] Preferably, the outer cavity is tubular and located on one side of the inner cavity, and an isolation blade is provided inside the outer cavity between the air inlet and the air outlet, and a ventilation slit is provided on the isolation blade.

[0016] By adopting the above technical solution, isolating blades are provided and ventilation slits are provided on the isolating blades to achieve the effect of ventilation and liquid isolation, thereby preventing dirty liquid from being brought out to the abdominal cavity.

[0017] Preferably, the isolation blades are provided with at least two layers, and the ventilation slits on adjacent isolation blades are staggered.

[0018] By adopting the above technical solution and setting at least two layers of isolation blades, the gas needs to pass through the ventilation slits of the isolation blades through multiple reciprocating airflow channels when passing through the air inlet and being discharged from the air outlet. In this process, the gas will be discharged smoothly, while the dirty liquid will be retained and will not be discharged with the airflow.

[0019] Preferably, the air inlet is connected to a position in the lower middle portion of the inner cavity.

[0020] By adopting the above technical solution, a large amount of dirty liquid in the inner cavity will not be brought out to the outer cavity during the gas discharge process.

[0021] Preferably, the outer cavity is a rotating body chamber surrounding the inner cavity, and the air inlet and the air outlet are respectively located on two sides relative to the inner cavity.

[0022] By adopting the above technical solution, the airflow needs to go around the outer half circle of the inner cavity during the process of being discharged through the air inlet and the air outlet, so that the dirty liquid is not easily brought out during the discharge process of the airflow.

[0023] Preferably, two layers of isolation blades are arranged inside the outer cavity above the air inlet, and each layer of the isolation blades is provided with an air vent.

[0024] By adopting the above technical solution, two layers of isolation blades are set so that when the airflow passes through the isolation blades, the gas passes through the vents, and the liquid contacts the isolation blades during the airflow change process, so that the dirty liquid remains in the outer cavity and is not easily discharged with the airflow.

[0025] Preferably, the two layers of isolation blades are stacked together, the ventilation holes on the lower layer of isolation blades are located on the same side of the air outlet relative to the inner cavity, and the ventilation holes on the upper layer of isolation blades are located on the same side of the air inlet relative to the inner cavity.

[0026] By adopting the above technical solution, two layers of isolation blades are arranged to overlap each other, so that when the air pressure below the isolation blades is greater than the air pressure above the isolation blades, the isolation blades will be slightly deformed, forming a long and narrow air flow channel between the two layers of isolation blades, so that the dirty liquid cannot pass between the two layers of isolation blades without contacting the isolation blades, and therefore will not be discharged from the outer cavity with the airflow.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. After the gas enters the inner cavity loaded with the specimen through the puncture cannula, the internal air pressure of the inner cavity is greater than the external abdominal cavity air pressure, so that the inner cavity expands to form a sufficiently large operating space, and the surgical instrument can accurately and quickly adjust the angle of the specimen or efficiently and regularly divide it; at the same time, part of the gas entering the inner cavity will enter the external cavity through the air inlet hole, and be released into the abdominal cavity through the air outlet hole, so that the air pressure in the abdominal cavity is also maintained at a state greater than the external air pressure, so that sufficient air cavity space is formed in the abdominal cavity, and in this process, because the puncture holes on the abdominal wall are not completely closed, the air in the abdominal cavity will also be continuously released to the outside along with the puncture holes on the abdominal wall, so that the air pressure in the cavity of the retrieval bag is always maintained greater than the abdominal cavity air pressure greater than the external air pressure during the operation, so that both the inner cavity and the abdominal cavity have enough space for surgeons to perform surgical operations.

[0029] 2. By setting at least two layers of isolation blades, the gas needs to pass through the ventilation slits of the isolation blades through multiple reciprocating airflow channels when passing through the air inlet and discharged from the air outlet. In this process, the gas will be discharged smoothly, while the dirty liquid will be retained and will not be discharged with the airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of the structure of the first embodiment in an expanded state;

[0031] Figure 2 is an enlarged view of point A of Example 1;

[0032] Figure 3 is a schematic diagram of the structure of the second embodiment in an expanded state;

[0033] Figure 4 It is a schematic diagram of the structure of the third embodiment in the expanded state.

[0034] Explanation of the accompanying drawings: 1. Head; 2. Neck; 3. Body; 4. Memory metal ring; 5. Inner cavity; 6. Outer cavity; 7. Upper cavity; 8. Lower cavity; 9. Diaphragm; 10. Air outlet; 11. Air inlet; 12. Isolation blade; 13. Ventilation slit; 14. Ventilation hole. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-4 This application is described in further detail.

[0036] An embodiment of the present application provides a laparoscopic difficult specimen retrieval bag.

[0037] Embodiment 1:

[0038] like Figure 1As shown, the laparoscopic difficult specimen retrieval bag comprises a head 1 with an opening on one side, a neck 2, and a body 3, wherein the neck 2 is used to connect the head 1 and the body 3.

[0039] like Figure 1 As shown, a memory metal ring 4 is built into the opening of the head 1, which is used to make the retrieval bag automatically and elastically unfold after the retrieval bag is placed into the abdominal cavity through the puncture cannula, so as to facilitate the loading of the specimen.

[0040] like Figure 1 As shown, the body 3 includes an inner cavity 5 and an outer cavity 6. A diaphragm 9 is provided in the inner cavity 5 to separate the inner cavity 5 into an upper cavity 7 and a lower cavity 8. The diaphragm 9 is provided with pores or holes so that dirty liquid (such as bile, pus, blood, exudate of the gallbladder; pus, blood, exudate of the appendix) carried by the specimen entering the inner cavity 5 can flow into the lower cavity 8 for collection under the action of gravity.

[0041] like Figure 1 and Figure 2 As shown, the outer cavity 6 is connected to the outer side of the inner cavity 5, and the outer cavity 6 is tubular as a whole. An air outlet 10 is formed at the upper part of the outer cavity 6, and an air inlet 11 connected to the inner cavity 5 is formed in the middle part of the outer cavity 6. The air inlet 11 is connected to the inner cavity 5 near the bottom of the upper cavity 7 and located above the diaphragm 9, and the air inlet 11 and the air outlet 10 are both small holes. At least two layers of isolation blades 12 are arranged inside the outer cavity 6 between the air inlet 11 and the air outlet 10. The isolation blades 12 separate the entire outer cavity 6, and each layer of isolation blades 12 is formed with ventilation slits 13, and the ventilation slits 13 on adjacent isolation blades 12 are staggered.

[0042] Specific use process:

[0043] During use, after the sample bag is placed into the abdominal cavity through the puncture cannula of the puncture device, the head 1 of the sample bag is automatically expanded under the action of the memory metal ring 4, and the specimen can be placed in the inner cavity 5 of the sample bag. Then the head 1 and neck 2 of the sample bag are pulled out of the body surface from the puncture device, and the pneumoperitoneum is temporarily closed. After the puncture cannula is removed, the puncture device is immediately inserted into the sample bag from the opening of the head 1 of the sample bag, and the pneumoperitoneum is reopened. After the gas enters the inner cavity 5 loaded with the specimen through the puncture cannula, the internal air pressure of the inner cavity 5 is greater than the external abdominal cavity air pressure, so that the inner cavity 5 is expanded to form a sufficiently large operating space, and the surgical instrument can accurately and quickly adjust the angle of the specimen or efficiently and regularly divide it (for example, the appendix with moderate or severe inflammation is in the shape of a long strip, and the angle can be adjusted to remove it from a small incision; the gallbladder with excessive stone load can also be efficiently and regularly dissected to separate stones and bile, separate solid stones, soft tissues, and liquid bile, and finally achieve complete removal of specimen tissue to avoid irregular tearing of the specimen). At the same time, part of the gas entering the inner cavity 5 will enter the outer cavity 6 through the air inlet 11, and be released into the abdominal cavity through the air outlet 10, so that the air pressure in the abdominal cavity is also maintained at a state greater than the external air pressure, so that sufficient air cavity space is formed in the abdominal cavity. In this process, since the puncture holes on the abdominal wall are not completely closed, the air in the abdominal cavity will also be continuously released to the outside along the puncture holes on the abdominal wall, so that during the operation, the state of air pressure in the inner cavity 5 of the retrieval bag > abdominal cavity air pressure > external air pressure is always maintained, so that both the inner cavity 5 and the abdominal cavity have enough space for surgeons to perform surgical operations.

[0044] Embodiment 2:

[0045] like Figure 3 As shown, the laparoscopic difficult specimen retrieval bag of this embodiment is different from the embodiment 1 in that the inner cavity 5 of the retrieval bag is a complete cavity and is not divided into an upper cavity 7 and a lower cavity 8. The outer cavity 6 is connected to the outer side of the inner cavity 5, and the outer cavity 6 is tubular as a whole. An air outlet 10 is formed at the upper part of the outer cavity 6, and an air inlet 11 connected to the inner cavity 5 is formed in the middle part of the outer cavity 6. The air inlet 11 is connected to the middle and lower part of the inner cavity 5. At least two layers of isolation blades 12 are arranged inside the outer cavity 6 between the air inlet 11 and the air outlet 10, and there is a spacing between adjacent isolation blades 12. The isolation blades 12 separate the entire outer cavity 6, and each layer of isolation blades 12 is formed with ventilation slits 13, and the ventilation slits 13 on adjacent isolation blades 12 are staggered.

[0046] Embodiment three:

[0047] like Figure 4As shown, the laparoscopic difficult specimen retrieval bag of this embodiment is different from the embodiment 1 in that the outer cavity 6 is a rotating body chamber surrounding the inner cavity 5, the upper part of the outer cavity 6 is formed with an air outlet 10, and the middle part of the outer cavity 6 is formed with an air inlet 11 connected to the inner cavity 5, the air inlet 11 is connected to the position above the diaphragm 9 near the bottom of the upper cavity 7, and the air inlet 11 and the air outlet 10 are both small holes and are respectively located on both sides of the inner cavity 5. Two layers of isolation blades 12 are arranged at the position above the air inlet 11 inside the outer cavity 6, and the isolation blades 12 are annular and separate the entire outer cavity 6. The isolation blades 12 are stacked together, and each layer of isolation blades 12 is cut and formed with vents 14, the vents 14 on the lower layer of isolation blades 12 are located at the same side of the air outlet 10 relative to the inner cavity 5, and the vents 14 on the upper layer of isolation blades 12 are located at the same side of the air inlet 11 relative to the inner cavity 5.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A laparoscopic difficult specimen retrieval bag, comprising a head (1) with an opening on one side, a body (3), and a neck (2) connecting the head (1) and the body (3), wherein: The body (3) comprises an inner cavity (5) and an outer cavity (6), wherein the inner cavity (5) is connected to the neck (2), and the outer cavity (6) is provided with an air inlet (11) and an air outlet (10), wherein the air inlet (11) is used to be connected to the inner cavity (5), and the air outlet (10) is used to be connected to the outside; the outer cavity (6) is a rotating body chamber surrounding the inner cavity (5), and the air inlet (11) and the air outlet (10) are respectively located on two sides relative to the inner cavity (5); the outer cavity (6) Two layers of isolation blades (12) are arranged inside at a position above the air inlet (11), and each layer of the isolation blades (12) is provided with an air vent (14); the two layers of the isolation blades (12) are stacked together, and the air vent (14) on the isolation blades (12) of the lower layer are located at the same side of the air outlet (10) relative to the inner cavity (5), and the air vent (14) on the isolation blades (12) of the upper layer are located at the same side of the air inlet (11) relative to the inner cavity (5).

2. The laparoscopic difficult specimen retrieval bag according to claim 1 is characterized by: A memory metal ring (4) is provided at the opening of the head (1) for enabling the taking bag to automatically and elastically unfold.

3. The laparoscopic difficult specimen retrieval bag according to claim 1 is characterized by: A diaphragm (9) is arranged in the inner cavity (5) to separate the inner cavity (5) into an upper cavity (7) and a lower cavity (8), and pores or holes are arranged on the diaphragm (9).

4. The laparoscopic difficult specimen retrieval bag according to claim 3 is characterized by: The air inlet hole (11) is connected to the inner cavity (5) near the bottom of the upper cavity (7) and located above the diaphragm (9).

5. The laparoscopic difficult specimen retrieval bag according to claim 1 is characterized by: The air inlet hole (11) is connected to the lower middle portion of the inner cavity (5).

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