Biopsy bag assembly for endoscopic surgery

Abstract

The utility model discloses a biopsy bag assembly for endoscopic surgery. The biopsy bag assembly for endoscopic surgery comprises a covering component and a collecting component. The covering part comprises a cover body, and at least one through hole is formed in the cover body. The collecting component comprises a collecting part, a bag opening assembly and at least one lifting rope. The collecting piece comprises a neck part and a bag part, the neck part forms a moving channel, and the bag part forms a containing cavity and an opening. The bag opening assembly comprises a lower supporting ring and a mouth opening piece, the lower supporting ring is installed at the end, close to the bag part, of the neck part, the mouth opening piece is provided with a mouth opening part and a fixing part, the mouth opening part is wound around the edge of the opening, the end of the mouth opening part extends in the circumferential direction of the neck part to form the fixing part, and the fixing part abuts against the inner wall of the lower supporting ring; the opening supporting piece is made of nickel-titanium materials. The lifting rope is provided with a fixed end part and a traction end part, the fixed end part and the traction end part are respectively two end parts in the length direction of the lifting rope, and the fixed end part is fixedly arranged on the opening supporting part.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a biopsy bag assembly for endoscopic surgery. Background Art

[0002] Laparoscopic surgery refers to a surgery using a laparoscope and related surgical instruments, which can excise tissues such as the patient's gallbladder, appendix, and intrahepatic bile duct cystadenoma. Usually, doctors need to make holes in the patient's abdomen to establish a surgical channel, and surgical instruments such as a laparoscope, tissue scissors, and a biopsy bag are inserted into the abdominal cavity through the surgical channel to excise the diseased tissue. The existing biopsy bag has a containing cavity and an opening formed on the side and communicating with the containing cavity. The excised tissue is put into the containing cavity through the opening for collection by the biopsy bag. After the tissue excision operation is completed, medical staff take the excised tissue out of the body by removing the biopsy bag.

[0003] CN214048929U discloses a laparoscopic channel sample extraction bag. A reinforced latex edge strip is fixedly arranged at the edge of the opening of the extraction bag so that during the operation, the opening of the bag remains open, facilitating the doctor to put the excised tissue into the containing cavity through the opening during the operation. Since the extraction bag is made of a flexible material and the reinforced latex edge strip has toughness, when the closing wire is lifted, the extraction bag will deform and change the orientation of the opening but cannot reduce the opening. Therefore, when the extraction bag is removed, the tissue in the containing cavity is easily squeezed by the inner wall of the surgical channel and moves out of the containing cavity, easily causing the patient to be reinfected and having low safety performance.

[0004] In addition, the biopsy bag includes a covering component and a collecting component installed with the covering component. The covering component includes a cover piece and a sealing piece. The cover piece forms a perforation, and the sealing piece has a plurality of shielding parts laid in the perforation in the circumferential direction of the perforation to seal the perforation. During laparoscopic surgery, carbon dioxide gas needs to be introduced into the patient's abdomen to separate the abdominal wall from the internal organs to expand the doctor's surgical area and ensure a clear surgical field. The surgical instrument needs to squeeze the shielding parts to make the shielding parts avoid the perforation, penetrate through the perforation from the internal space of the collecting component, and finally extend into the patient's abdominal cavity through the opening. Since the shielding parts are deformed and separated from each other to generate gaps between adjacent shielding parts, the carbon dioxide gas in the abdominal cavity will escape from the gaps between the shielding parts. In addition, after the surgical instrument is withdrawn from the perforation, due to the simple gas flow path formed by the gaps between the shielding parts, the gas is easy to escape, and the airtightness between the shielding parts is poor, which affects the doctor's surgical field and operation range. Summary of the Utility Model

[0005] To solve the above technical problems and achieve at least one advantage of the present utility model, the present utility model provides a biopsy bag assembly for endoscopic surgery. The biopsy bag assembly for endoscopic surgery includes:

[0006] A covering component, the covering component includes a cover body, the cover body forms at least one perforation, and one of the perforations allows a surgical instrument to pass through;

[0007] A collection component, the collection component includes:

[0008] A collection piece, the collection piece includes a neck and a bag portion. The neck extends vertically and forms a moving channel. The bag portion is arranged at the lower end of the neck. The bag portion forms a containing cavity communicating with the moving channel. An opening is formed on the side of the bag portion. The opening communicates with both the containing cavity and the moving channel. The opening has a lower edge, an upper edge opposite to the lower edge, and a side edge located between the lower edge and the upper edge. The cover body is installed at one end of the neck away from the bag portion, and the perforation communicates with the moving channel;

[0009] A bag supporting assembly, the bag supporting assembly includes a lower support ring and a bag opening member. The lower support ring is installed at one end of the neck close to the bag portion. The bag opening member has a bag opening portion and a fixing portion. The bag opening portion is wound around the lower edge and the side edge. The fixing portion is formed by the end of the bag opening portion extending circumferentially around the neck, and the fixing portion keeps in contact with the inner wall of the lower support ring. Both the bag opening member and the lower support ring are arranged to be elastically deformable when pressed and have a tendency to return to their original state. The bag opening member is made of nitinol material;

[0010] At least one pulling rope, the pulling rope has a fixed end and a traction end. The fixed end and the traction end are respectively the two ends in the length direction of the pulling rope. Wherein the fixed end is fixedly installed on the bag opening portion corresponding to the lower edge.

[0011] According to an embodiment of the present utility model, the covering component further includes at least one sealing member. The sealing member is installed on the perforation. The sealing member has a plurality of shielding portions. The plurality of shielding portions are distributed in a circumferential manner to block the perforation. The shielding portion can completely cover the perforation. The shielding portion is arranged to be elastically deformable when pressed and have a tendency to recover.

[0012] According to an embodiment of the present utility model, the plurality of shielding portions are distributed in a circumferential manner and block the perforation in a way of staggered stacking.

[0013] According to an embodiment of the present utility model, a plurality of the sealing members are provided on the covering member, a plurality of the perforations are formed on the cover body, and each of the perforations is mounted on one of the sealing members.

[0014] According to an embodiment of the present utility model, the space of the bag portion in the horizontal direction gradually increases from one end close to the neck to the other end away from the neck, and at least a part of the opening faces upward.

[0015] According to an embodiment of the present utility model, the bag supporting assembly further includes an upper support ring having a preset toughness. The upper support ring is mounted on the end of the neck away from the bag portion, and the cover body is detachably mounted on the upper support ring.

[0016] According to an embodiment of the present utility model, at least one limiting hole is formed on the circumferential side of the cover body, and the traction end portion passes through the limiting hole.

[0017] According to an embodiment of the present utility model, the connection position between the fixed end portion and the mouth supporting portion is close to the side mouth edge.

[0018] According to an embodiment of the present utility model, two pulling ropes are provided. The connection positions of the fixed end portions of the two pulling ropes with the mouth supporting portion are respectively close to the two side mouth edges.

[0019] According to an embodiment of the present utility model, the elasticity of the fixing portion is greater than that of the lower support ring. Description of the Drawings

[0020] Figure 1 The structural schematic diagram of the biopsy bag assembly for endoscopic surgery according to the present utility model is shown.

[0021] Figure 2 The partial structural sectional view of the biopsy bag assembly for endoscopic surgery according to the present utility model is shown.

[0022] Figure 3 Shown is Figure 1 The enlarged schematic view of part A in

[0023] Figure 4 The partial structural perspective view of the biopsy bag assembly for endoscopic surgery according to the present utility model is shown. Detailed Description of the Embodiment

[0024] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description of the present utility model can be applied to other implementation schemes, variation schemes, improvement schemes, equivalent schemes, and other technical schemes without departing from the spirit and scope of the present utility model.

[0025] Those skilled in the art should understand that in the disclosure of the present utility model, the orientation or positional relationship indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on the present utility model.

[0026] It can be understood that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0027] Reference Figures 1 to 4 , according to a preferred embodiment of the present utility model, a biopsy bag assembly for endoscopic surgery will be elaborated in detail below. The biopsy bag assembly for endoscopic surgery can be applied to endoscopic surgeries, such as laparoscopic and thoracoscopic surgeries. For the convenience of understanding the technical solution of the present utility model, the following embodiments will be elaborated by taking the biopsy bag assembly for endoscopic surgery used in laparoscopic surgery as an example.

[0028] The biopsy bag assembly for endoscopic surgery includes a covering member 10 and a collecting member 20. The collecting member 20 includes a collecting piece 21. The collecting piece 21 forms a containing cavity 2101 and a moving channel 2102 communicating with the containing cavity 2101. The containing cavity 2101 is used to store the excised tissue. The collecting piece 21 is provided with an opening 2103 on the side that communicates with both the containing cavity 2101 and the moving channel 2102.

[0029] The covering member 10 includes a cover body 11 and at least one seal 12. The cover body 11 forms at least one perforation 1101. The cover body 11 is mounted on the collection member 21, and the perforation 1101 communicates with the movement channel 2102. One of the perforations 1101 allows a surgical instrument to pass through. The surgical instrument passing through the perforation 1101 extends into the abdominal cavity from the opening 2103 through the movement channel 2102. The surgical instruments include an endoscope, surgical forceps, tissue scissors, a harmonic scalpel, etc. During the operation, the doctor can manipulate the surgical instrument to excise the diseased tissue and put the excised tissue into the storage cavity 2101 through the opening 2103. After the excision operation, the excised tissue can be taken out of the patient's abdominal cavity by removing the biopsy bag assembly for endoscopic surgery.

[0030] The seal 12 is mounted on the perforation 1101. The seal 12 has a plurality of shielding portions 121. The plurality of shielding portions 121 are distributed in a circumferential manner to block the perforation 1101. The shielding portion 121 can completely cover the perforation 1101 to block the air flow channel through which the abdominal cavity communicates with the outside through the biopsy bag assembly for endoscopic surgery. The shielding portion 121 is configured to be elastically deformed after being squeezed by the surgical instrument and have a tendency to recover. At the same time, the shielding portion 121 gives way to a part of the perforation 1101 and remains in contact with the outer peripheral wall of the surgical instrument.

[0031] Preferably, the plurality of shielding portions 121 are distributed in a circular pattern and block the perforations 1101 in a staggered and stacked manner. It can be understood that in laparoscopic surgery, carbon dioxide gas needs to be introduced into the patient's abdomen to separate the abdominal wall from the internal organs, so as to expand the surgical area for the doctor and ensure a clear surgical field of view. When the surgical instrument presses against the shielding portion 121, the shielding portion 121 undergoes elastic deformation to yield a part of the perforation 1101 for the surgical instrument to extend into the abdominal cavity through the moving channel 2102. The portions between two adjacent shielding portions 121 remain in contact to prevent the exposure of the gap between two adjacent shielding portions 121, and the shielding portion 121 remains in contact with the outer periphery of the surgical instrument, so that the carbon dioxide gas in the abdominal cavity cannot escape from the gap between the shielding portions 121 and the gap between the shielding portion 121 and the surgical instrument, so as to ensure the airtightness of the connection between the seal 12 and the surgical instrument. After the surgical instrument is withdrawn from the abdominal cavity, the shielding portion 121 returns to its original state under the elastic force to cover the perforation 1101. The seal 12 is in a labyrinth seal, and the carbon dioxide in the abdominal cavity is not easily leaked from the seal 12. In this way, whether or not a surgical instrument is inserted through the perforation 1101, the shielding portion 121 can prevent the carbon dioxide gas introduced into the abdominal cavity from escaping from the perforation 1101, thereby maintaining the air pressure in the abdominal cavity and avoiding affecting the doctor's surgical field of view and reducing the surgical area due to the overflow of carbon dioxide in the abdominal cavity.

[0032] As a preference, the shielding portion 121 is implemented to be made of medical silicone material.

[0033] In an embodiment, the covering member 10 is provided with a plurality of the seals 12, the cover body 11 forms a plurality of the perforations 1101, and each of the perforations 1101 is installed in one of the seals 12. The plurality of perforations 1101 formed by the cover body 11 are respectively for each surgical instrument to pass through. That is to say, a plurality of surgical instruments can extend into the patient's abdominal cavity from a surgical channel through the cover body 11, so as to reduce the number of surgical channels opened for the patient and be beneficial to the patient's recovery.

[0034] Specifically, the collecting member 21 includes a neck portion 211 and a bag portion 212. The neck portion 211 extends vertically and forms the moving channel 2102. The bag portion 212 is disposed at the lower end of the neck portion 211. The bag portion 212 forms the containing cavity 2101, and an opening 2103 is formed on the side of the bag portion 212. The cover body 11 is installed at one end of the neck portion 211 away from the bag portion 212.

[0035] It is worth mentioning that the space of the bag portion 212 in the horizontal direction gradually increases from the end close to the neck portion 211 to the end away from the neck portion 211, and at least a part of the opening 2103 faces upward. In this way, there is no obstruction above the part of the opening 2103 facing upward, which facilitates the doctor to put the excised tissue into the storage cavity 2101 through the opening 2103.

[0036] Furthermore, the collection component 20 further includes a bag-supporting assembly 22.

[0037] The bag-supporting assembly 22 includes an upper support ring 221 which has a preset toughness. The upper support ring 221 is installed at the end of the neck portion 211 away from the bag portion 212, and the cover body 11 is detachably installed on the upper support ring 221. The upper support ring 221 provides a rigid support for the collection member 21, so that the collection member 21 can be connected to the cover body 11 through the upper support ring 221, and the upper support ring 221 expands the end of the neck portion 211 away from the bag portion 212 to facilitate the insertion of surgical instruments.

[0038] In one example, the upper support ring 221 is made of medical silicone. Medical silicone is an elastic material, so the upper support ring 221 can be hermetically connected to the cover body 11 to reduce the leakage of carbon dioxide gas in the abdominal cavity.

[0039] Preferably, the bag-supporting assembly 22 further includes a lower support ring 222 which is installed at the end of the neck portion 211 close to the bag portion 212. The lower support ring 222 is configured to elastically deform under pressure and has a tendency to return to its original state. The doctor squeezes the collection member 21 and the lower support ring 222 to reduce the volume of the collection component 20, so that the compressed collection component 20 can be inserted into the abdominal cavity through the surgical channel opened in the patient's abdomen. After the collection component 20 is inserted into the abdominal cavity, the neck portion 211 quickly expands under the elastic force of the lower support ring 222. The neck portion 211 keeps the movement channel 2102 unobstructed and the outer wall fits with the inner wall of the surgical channel opened in the patient's abdomen under the cooperation of the lower support ring 222 and the upper support ring 221, so as to facilitate the smooth insertion of surgical instruments into the movement channel 2102 while ensuring the airtightness of the connection between the biopsy bag assembly for endoscopic surgery and the surgical channel.

[0040] In one example, the lower support ring 222 is made of medical silicone material.

[0041] Preferably, the bag-supporting assembly 22 further includes a mouth-supporting member 223. The mouth-supporting member 223 has a mouth-supporting portion 2231 which is wound around at least a part of the mouth edge of the opening 2103. The mouth-supporting portion 2231 is configured to elastically deform under pressure and has a tendency to return to its original state. The doctor squeezes the collecting member 21, the lower support ring 222 and the mouth-supporting member 223 to reduce the volume of the collecting component 20, so that the compressed collecting component 20 can extend into the abdominal cavity through a surgical passage opened in the patient's abdomen. After the collecting component 20 extends into the abdominal cavity, the neck 211 quickly unfolds under the elastic force of the lower support ring 222, and the opening 2103 formed by the bag portion 212 quickly unfolds under the elastic force of the mouth-supporting portion 2231, so that surgical instruments can extend into the abdominal cavity through the moving passage 2102 from the opening 2103. During the operation, the mouth-supporting portion 2231 uses its own elastic force to maintain the opening 2103 in an unfolded state, so that the doctor can quickly put the excised tissue into the storage cavity 2101 through the opening 2103.

[0042] In one embodiment, the mouth-supporting portion 2231 is wound around the entire mouth edge of the opening 2103, so that the mouth-supporting portion 2231 can fully expand the opening 2103.

[0043] The opening 2103 has a lower mouth edge 21031, an upper mouth edge 21032 disposed opposite to the lower mouth edge 21031, and a side mouth edge 21033 located between the lower mouth edge 21031 and the upper mouth edge 21032. Among them, the upper mouth edge 21032 is closer to the lower support ring 222 than the lower mouth edge 21031.

[0044] Optionally, the mouth-supporting portion 2231 is wound around the lower mouth edge 21031 and the side mouth edge 21033. It can be understood that the upper mouth edge 21032 is close to the lower support ring 222, so that the lower support ring 222 and the mouth-supporting portion 2231 cooperate to expand the entire opening 2103. Compared with the previous embodiment, the use of materials is saved and the manufacturing cost is reduced.

[0045] Preferably, the mouth-supporting member 223 further includes a fixing portion 2232. The fixing portion 2232 is formed by the end of the mouth-supporting portion 2231 extending circumferentially around the collecting member 21.

[0046] In one embodiment, the fixing part 2232 is formed by the end of the mouth-opening part 2231 extending circumferentially around the bag part 212. After the collection component 20 extends into the abdominal cavity, the opening 2103 formed by the bag part 212 is quickly unfolded under the elastic force of the mouth-opening part 2231, and the bag part 212 quickly changes from a collapsed state to an unfolded state under the elastic action of the fixing part 2232, so that it is convenient for the doctor to put the excised tissue into the containing cavity 2101 through the opening 2103.

[0047] Alternatively, the fixing part 2232 is formed by the end of the mouth-opening part 2231 extending circumferentially around the neck part 211, and the fixing part 2232 keeps abutting against the inner wall of the lower support ring 222.

[0048] Furthermore, the collection component 20 further includes at least one pulling rope 23. The pulling rope 23 has a fixed end 231 and a traction end 232. The fixed end 231 and the traction end 232 are respectively the two end parts in the length direction of the pulling rope 23, wherein the fixed end 231 is fixedly installed on the mouth-opening part 2231 corresponding to the lower mouth edge 21031. The traction end 232 stays outside the body. After the excision operation is completed, the medical staff can pull up the traction end 232, and the mouth-opening part 223 is stressed and bent under the abutting action of the lower support ring 222, and the mouth-opening part 2231 corresponding to the lower mouth edge 21031 moves upward to contract the opening 2103, thereby preventing the excised tissue contained in the bag part 212 from falling during the process of removing the collection component 20. Since the lower support ring 222 limits the fixing part 2232 of the mouth-opening part 223, the mouth-opening part 2231 is bent directionally under the guiding action of the pulling rope 23 to narrow the opening 2103.

[0049] Preferably, at least one limiting hole 1102 is formed on the circumferential side of the cover body 11. The traction end 232 passes through the limiting hole 1102, and the hole wall of the limiting hole 1102 defines the pulling track of the pulling rope 23, so as to facilitate the medical staff to contract the opening 2103 and keep the surgical environment clean and convenient for the doctor to operate.

[0050] Preferably, the connection position of the fixed end 231 and the mouth-opening part 2231 is close to the side mouth edge 21033 to prevent the pulling rope 23 from blocking the opening 2103.

[0051] In a preferred embodiment, two lifting ropes 23 are provided. The connection positions of the fixed ends 231 each of the two lifting ropes 23 with the mouth-opening portion 2231 are respectively close to the two side mouth edges 21033, so that the bag portion 212 maintains a balanced force when closing the opening.

[0052] Preferably, the elasticity of the fixing portion 2232 is greater than that of the lower support ring 222. After the collection member 20 extends into the abdominal cavity, the opening 2103 is quickly unfolded under the elastic force of the fixing portion 2232, and the elastic restoring force of the fixing portion 2232 acts on the lower support ring 222 to assist the lower support ring 222 to quickly recover and accelerate the unfolding speed of the collection member 21.

[0053] In an example, the mouth-opening member 223 is implemented to be made of a nitinol material.

[0054] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention can have any deformation or modification without departing from the principle.

Claims

1. A biopsy bag assembly for endoscopic surgery, characterized in that: The biopsy bag assembly for endoscopic surgery comprises: A covering component, the covering component comprising a cover body, the cover body forming at least one through hole, the through hole allowing a surgical instrument to pass through; A collecting component, the collecting component comprising: A collecting member, the collecting member comprising a neck and a bag portion, the neck extending vertically and forming a moving passage, the bag portion being arranged at the lower end of the neck, the bag portion forming a holding cavity communicating with the moving passage, an opening being formed on the side of the bag portion, the openings both communicating with the holding cavity and the moving passage, the openings having a lower edge, an upper edge arranged opposite to the lower edge, and a side edge located between the lower edge and the upper edge, the cover being mounted at an end of the neck away from the bag portion, and the through hole communicating with the moving passage; A bag support assembly, the bag support assembly comprising a lower support ring and a mouth support member, the lower support ring is installed at an end of the neck close to the bag portion, the mouth support member has a mouth support portion and a fixing portion, the mouth support portion is arranged around the lower mouth edge and the side mouth edge, the fixing portion is formed by the end of the mouth support portion extending around the neck circumference, and the fixing portion is kept in contact with the inner wall of the lower support ring, the mouth support member and the lower support ring are both configured to be able to undergo elastic deformation when under pressure and have a tendency to return to their original state, and the mouth support member is made of nickel-titanium material; At least one pulling rope, the pulling rope has a fixed end and a pulling end, the fixed end and the pulling end are respectively two ends of the pulling rope in the length direction, wherein the fixed end is fixedly installed on the support mouth corresponding to the lower mouth edge.

2. The biopsy bag assembly for endoscopic surgery according to claim 1, characterized in that: The covering component also includes at least one sealing member, which is installed on the perforation. The sealing member has multiple shielding parts, and the multiple shielding parts are distributed circumferentially to block the perforation. The shielding parts can completely cover the perforation, and the shielding parts are configured to undergo elastic deformation when under pressure and have a tendency to recover.

3. The biopsy bag assembly for endoscopic surgery according to claim 2, characterized in that: The plurality of shielding portions are distributed along a circumference and stacked in a staggered manner to block the through hole.

4. The biopsy bag assembly for endoscopic surgery according to claim 2 or 3, characterized in that: The covering component is provided with a plurality of the sealing members, the cover body is formed with a plurality of the through holes, and each of the through holes is installed in a sealing member.

5. The biopsy bag assembly for endoscopic surgery according to claim 3, characterized in that: The space of the bag portion along the horizontal direction gradually increases from an end close to the neck to an end away from the neck, and at least a part of the opening faces upward.

6. The biopsy bag assembly for endoscopic surgery according to claim 5, characterized in that: The bag support assembly further comprises an upper support ring having a preset toughness, the upper support ring being mounted on an end of the neck away from the bag portion, and the cover body being detachably mounted on the upper support ring.

7. The biopsy bag assembly for endoscopic surgery according to claim 6, characterized in that: At least one limiting hole is formed on the peripheral side of the cover body, and the traction end passes through the limiting hole.

8. The biopsy bag assembly for endoscopic surgery according to claim 7, characterized in that: The fixed end portion and the connection position with the support opening portion are close to the side opening edge.

9. The biopsy bag assembly for endoscopic surgery according to claim 8, characterized in that: Two pulling ropes are provided, and the connection positions of the fixed ends of the two pulling ropes and the support opening are close to the two side opening edges respectively.

10. The biopsy bag assembly for endoscopic surgery according to claim 9, characterized in that: The elasticity of the fixing portion is greater than the elasticity of the lower supporting ring.

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