Multi-channel puncture device and puncture mechanism thereof

Abstract

The utility model discloses a multi-channel puncture device and a puncture mechanism thereof. The multi-channel puncture device comprises the puncture mechanism and a sample collection mechanism. The sample collecting mechanism comprises a sample collecting assembly, the sample collecting assembly is installed on the puncture mechanism, a containing cavity and a moving channel communicated with the containing cavity are formed in the sample collecting assembly, and an opening communicated with the containing cavity and the moving channel is formed in the side of the sample collecting assembly. The containing cavity is used for storing cut tissue, and a doctor can put the cut tissue into the containing cavity through the opening by controlling surgical instruments. The puncture mechanism is provided with a plurality of operation channels, a discharge channel and an air inlet channel which are communicated with the moving channel, the operation channels allow surgical instruments to penetrate through, and the surgical instruments penetrating through the operation channels extend into the cavity from the opening through the moving channel, so that the number of wounds of a patient can be reduced, and the operation efficiency is improved. Therefore, the patient can recover early.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a multi-channel puncture device and its puncture mechanism. Background Art

[0002] Laparoscopic surgery refers to a surgery using a laparoscope and related surgical instruments. This surgery can excise tissues such as the patient's gallbladder, appendix, and intrahepatic bile duct cystadenoma. Usually, a doctor makes at least two holes in the patient's abdomen to establish multiple surgical channels, and then connects two puncture devices to the two surgical channels respectively. Among them, surgical instruments such as tissue scissors and laparoscopes extend into the abdominal cavity through the operation channel formed by one of the puncture devices, so that the doctor can excise the diseased tissue; while the sample collection mechanism extends into the abdominal cavity through the operation channel formed by the other puncture device to catch the diseased tissue excised during the surgery, which increases the number of wounds of the patient, thereby prolonging the patient's recovery time.

[0003] In addition, during the process of laparoscopic surgery, the positions of the tissues to be dissected and separated will also change accordingly. Since the existing puncture device is fixed once it is connected to the surgical channel, the doctor can only change his or her knife-holding posture to adjust the part to be operated, which is very inconvenient to use. Summary of the Utility Model

[0004] To solve the above technical problems and achieve at least one advantage of the present utility model, the present utility model provides a multi-channel puncture device, and the multi-channel puncture device includes:

[0005] A puncture mechanism;

[0006] A sample collection mechanism, the sample collection mechanism includes a sample collection component, the sample collection component is installed on the puncture mechanism, the sample collection component forms a storage cavity and a moving channel communicating with the storage cavity, the sample collection component is provided with an opening on the side communicating with the storage cavity and the moving channel, the storage cavity is used for storing the excised tissue, the puncture mechanism has a plurality of operation channels, a discharge channel and an air inlet channel communicating with the moving channel, the operation channels allow surgical instruments to pass through, the surgical instruments passing through the operation channels extend into the cavity from the opening through the moving channel, the puncture mechanism is respectively connected to a gas supply device and a negative pressure device, wherein the negative pressure device is communicated with the discharge channel, and the gas supply device is communicated with the air inlet channel.

[0007] According to an embodiment of the present utility model, the puncture mechanism includes a cover assembly, a plurality of connecting members, and a communication assembly. The sample collection assembly is installed on the cover assembly. Each of the connecting members forms an operation channel, and the plurality of connecting members are installed on the cover assembly at intervals in a manner of penetrating the cover assembly. The communication assembly includes an air inlet member and an air outlet member. The air inlet member forms the air inlet channel. The air inlet member is installed on the cover assembly and communicated with the moving channel. The air inlet member is connected to a gas supply device. The air outlet member includes a connector and a suction pipe. The connector is installed on the cover assembly. The connector is respectively connected to a negative pressure device and the suction pipe. The suction pipe extends into the moving channel. The connector and the suction pipe jointly form the discharge channel.

[0008] According to an embodiment of the present utility model, the end of the suction pipe away from the connector extends out of the opening.

[0009] According to an embodiment of the present utility model, the cover assembly includes a cover member and a ring member. The sample collection assembly is installed on the ring member. The cover member is installed on the ring member in a manner that can rotate around the extending direction of the operation channel. The connecting member is installed on the cover member.

[0010] According to an embodiment of the present utility model, the sample collection assembly includes a collection bag and a fitting. The fitting is annular. The collection bag includes a neck portion and a bag portion. The neck portion extends vertically and forms the moving channel. The bag portion is arranged at the lower end of the neck portion. The bag portion forms the opening and the containing cavity. The end of the neck portion away from the bag portion is fixedly installed on the side peripheral wall of the fitting. The fitting is detachably installed on the end of the ring member away from the cover member.

[0011] According to an embodiment of the present utility model, scale lines are provided on the side wall of the neck portion in the extending direction of the moving channel.

[0012] According to an embodiment of the present utility model, the opening is elliptical or semi-elliptical in the vertical direction.

[0013] According to an embodiment of the present utility model, the sample collection mechanism further includes two lifting ropes. The opening has a high end portion and a bottom end portion lower than the high end portion. The two lifting ropes are respectively located on both sides of the opening. Each lifting rope has a fixed end portion and a traction end portion. The fixed end portion and the traction end portion are respectively the two ends of the lifting rope in the length direction. The fixed end portion is fixedly installed on the bag portion and close to the bottom end portion of the opening. The traction end portion remains outside the body.

[0014] According to an embodiment of the present utility model, two limiting holes are formed on the outer peripheral side of the ring member. The traction end portion passes through the limiting holes.

[0015] To solve the above technical problems and achieve at least one advantage of the present utility model, the present utility model provides a puncture mechanism, which includes:

[0016] A cover assembly, which includes a cover member and a ring member, and the cover member is mounted on the ring member in a manner that can rotate around the axial direction of the ring member;

[0017] A plurality of connecting members, which form an operation channel, and the plurality of connecting members are all mounted on the cover member at intervals in a manner that penetrates the cover assembly;

[0018] A communication assembly, which includes an air inlet member and an air outlet member, the air inlet member is mounted on the cover assembly and is connected to a gas supply device, and the air outlet member is mounted on the cover assembly and is connected to a negative pressure device. Description of the Drawings

[0019] Figure 1 Shows a schematic structural diagram of the multi-channel puncture device of the present utility model.

[0020] Figure 2 Shows a cross-sectional view of the multi-channel puncture device of the present utility model at one angle.

[0021] Figure 3 Shows a cross-sectional view of the multi-channel puncture device of the present utility model at another angle.

[0022] Figure 4 Shows Figure 3 The schematic structural diagram of part A in Detailed Embodiments

[0023] 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 described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description can be applied to other implementation schemes, variation schemes, improvement schemes, equivalent schemes, and other technical schemes that do not deviate from the spirit and scope of the present utility model.

[0024] Those skilled in the art should understand that in the disclosure of the present utility model, the orientation or positional relationships indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships 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.

[0025] It is understood that the term "a" should be construed as "at least one" or "one or more". That is, in one embodiment, the number of an element may be one, while in other embodiments, the number of the element may be multiple. The term "a" should not be construed as a limitation on the number.

[0026] Reference Figures 1 to 4 , a multi-channel puncture device according to a preferred embodiment of the present utility model will be described in detail below. The multi-channel puncture device 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 described by taking the multi-channel puncture device used in laparoscopic surgery as an example.

[0027] Specifically, the multi-channel puncture device includes a puncture mechanism 10 and a sample collection mechanism 20. The sample collection mechanism 20 includes a sample collection assembly 21, and the sample collection assembly 21 is installed on the puncture mechanism 10. The sample collection assembly 21 extends into the abdominal cavity through a surgical channel opened by a doctor in the patient's abdomen, while the puncture mechanism 10 remains outside the body.

[0028] The sample collection assembly 21 forms a storage cavity 2101 and a moving channel 2102 communicating with the storage cavity 2101. The sample collection assembly 21 is provided with an opening 2103 on the side communicating with the storage cavity 2101 and the moving channel 2102. The storage cavity 2101 is used to store the excised tissue.

[0029] The puncture mechanism 10 has a plurality of operation channels 101 communicating with the moving channel 2102. The operation channels 101 allow surgical instruments to pass through. The surgical instruments passing through the operation channels 101 extend into the abdominal cavity from the opening 2103 through the moving channel 2102, enabling the doctor to see the surgical area and perform surgical operations, etc. Those skilled in the art can understand that the surgical instruments include endoscopes, surgical forceps, tissue scissors, ultrasonic scalpels, etc. During the surgery, the doctor can put the excised tissue into the storage cavity 2101 through the opening 2103 by manipulating the surgical instruments. In this way, the doctor can complete the laparoscopic surgery by using the multi-channel puncture device through only establishing a single surgical channel, without additionally creating a surgical channel for the sample collection mechanism to enter the abdominal cavity alone, reducing the number of incisions of the patient and facilitating the patient's recovery.

[0030] It is worth mentioning that the puncture mechanism 10 further forms a discharge channel 102 and an air inlet channel 103. The puncture mechanism 10 is respectively connected to a gas supply device and a negative pressure device, wherein the negative pressure device is communicated with the discharge channel 102, and the gas supply device is communicated with the air inlet channel 103. Smoke, water vapor and other substances in the abdominal cavity can be extracted through the discharge channel 102, so that the endoscope can clearly take pictures and ensure the doctor's clear vision. The gas supplied by the gas supply device enters the abdominal cavity through the air inlet channel 103, through the moving channel 2102 and the opening 2103. The supplied gas can separate the upper abdomen from the tissue organs to expand the operation space of the operation, avoid the interference of the upper abdomen on the operation and vision, and ensure the smooth progress of the operation.

[0031] Preferably, the puncture mechanism 10 includes a cover assembly 11, a plurality of connecting pieces 12 and a communicating assembly 13, wherein the sample collection assembly 21 is installed on the cover assembly 11. Each of the connecting pieces 12 forms an operation channel 101, and the plurality of connecting pieces 12 are spaced apart and installed on the cover assembly 11 in a way that penetrates the cover assembly 11. Abdominal surgical instruments such as an endoscope, a ultrasonic scalpel, and a tissue scissor respectively pass through an operation channel 101 formed by one of the connecting pieces 12 and extend into the abdominal cavity from the opening 2103 through the moving channel 2102. The communicating assembly 13 includes an air inlet member 131 and an air outlet member 132. The air inlet member 131 forms the air inlet channel 103. The air inlet member 131 is installed on the cover assembly 11 and communicated with the moving channel 2102, and the air inlet member 131 is connected to the gas supply device. The air outlet member 132 includes a joint 1321 and a suction pipe 1322. The joint 1321 is installed on the cover assembly 11. The joint 1321 is respectively connected to the negative pressure device and the suction pipe 1322, wherein the suction pipe 1322 extends into the moving channel 2102, and the discharge channel 102 is jointly formed by the joint 1321 and the suction pipe 1322.

[0032] Preferably, one end of the suction pipe 1322 away from the joint 1321 extends from the opening 2103 to the abdominal cavity. In this way, it can be avoided that the negative pressure device extracts the gas in the moving channel 2102 during operation, and prevents the part of the sample collection assembly 21 forming the moving channel 2102 from shrinking and hindering the flow of smoke, water vapor and other substances in the abdominal cavity. That is to say, the suction pipe 1322 extending out of the opening 2103 can improve the suction effect and enable the doctor to obtain a clear surgical field of vision.

[0033] Specifically, the cover assembly 11 includes a cover member 111 and a ring member 112, and the sample collection assembly 21 is installed on the ring member 112.

[0034] In one embodiment, the cover member 111 is fixedly connected to the ring member 112. In one example, the cover member 111 and the ring member 112 are integrally formed.

[0035] Alternatively, the cover member 111 is mounted on the ring member 112 in a manner that can rotate around the extending direction of the operation channel 101. The connecting member 12 is mounted on the cover member 111, so that during the operation, the doctor can rotate the cover member 111 according to the part to be cut, so as to adjust the position and angle of the surgical instrument inserted into the connecting member 12 for the convenience of the doctor's operation.

[0036] In a preferred embodiment, an annular connection structure 1111 is formed on one side wall of the cover member 111 facing the ring member 112, and the ring member 112 forms an assembly structure 1121 adapted to the connection structure 1111. The cover member 111 and the ring member 112 are assembled with the ring member 112 in such a way that the connection structure 1111 is snap-fitted with the assembly structure 1121. Either the connection structure 1111 or the assembly structure 1121 is implemented as an annular groove, and the other is implemented as an annular protrusion.

[0037] Preferably, the cover assembly 11 further includes a plurality of balls. The balls are installed between the connection structure 1111 and the assembly structure 1121 to convert the sliding friction generated when the cover member 111 rotates into kinetic energy, so that the balls rotate.

[0038] Specifically, the sample collection assembly 21 includes a collection bag 211, and the collection bag 211 includes a neck portion 2111 and a bag portion 2112. The neck portion 2111 extends vertically and forms the moving channel 2102. The bag portion 2112 is disposed at the lower end of the neck portion 2111, and the bag portion 2112 forms the opening 2103 and the storage cavity 2101.

[0039] In one embodiment, one end of the neck portion 2111 away from the bag portion 2112 is fixedly mounted on the side peripheral wall of one end of the ring member 112 away from the cover member 111. In one example, the neck portion 2111 is adhered to the ring member 112 by glue.

[0040] Alternatively, the sample collection assembly 21 further includes a fitting 212, and the fitting 212 is annular. One end of the neck portion 2111 away from the bag portion 2112 is fixedly mounted on the side peripheral wall of the fitting 212. The fitting 212 is detachably mounted on one end of the ring member 112 away from the cover member 111. In one example, the fitting 212 is threadedly connected to the ring member 112.

[0041] In this way, when the collection bag 211 is damaged, only the sample collection assembly 21 needs to be replaced. Similarly, it can be understood that the collection bag 211 is divided into different models according to its capacity, and medical staff can replace the sample collection assembly 21 with different capacity sizes according to the size of the tissue to be excised.

[0042] It is worth mentioning that scale lines are provided on the side wall of the neck 2111 in the extending direction of the moving channel 2102. During the operation, the doctor can observe the scale lines to judge the penetration depth of the surgical instrument. Preferably, the scale lines are engraved with colored colors, such as yellow, blue, etc. In this way, the scale lines are eye-catching and convenient for the doctor to read the numbers.

[0043] Preferably, the bag portion 2112 gradually increases radially from top to bottom, so that the bag portion 2112 can hold a large amount of excised tissue.

[0044] Preferably, the opening 2103 is oval or semi-oval in the vertical direction to reduce the lateral dimension of the opening 2103 to prevent the excised tissue stored in the bag portion 2112 from falling out of the opening 2103 during the operation.

[0045] It is worth mentioning that a display mark is provided on the rim of the bag portion 2112 forming the opening 2103. In one example, the display mark is implemented as a colored side line, so that the doctor can distinguish the position of the opening 2103 during the operation.

[0046] Furthermore, the sample collection mechanism 20 further includes two lifting ropes 22.

[0047] The opening 2103 has a high end and a bottom end lower than the high end. The two lifting ropes 22 are respectively located on both sides of the opening 2103. Each lifting rope 22 has a fixed end 221 and a traction end 222. The fixed end 221 and the traction end 222 are respectively the two end portions in the length direction of the lifting rope 22, wherein the fixed end 221 is fixedly installed on the bag portion 2112 and close to the bottom end of the opening 2103. The traction end 222 remains outside the body. After the operation is over, by pulling the traction end 222, the part of the bottom end of the bag portion 2112 forming the opening 2103 moves upward, so that the originally side-facing opening 2103 turns upward. In this way, during the process of removing the multi-channel puncture device, the excised tissue contained in the bag portion 2112 is not likely to fall out.

[0048] Preferably, two limiting holes 11201 are formed on the outer peripheral side of the ring member 112, and the traction end 222 passes through the limiting holes 11201 to keep the surgical environment clean and convenient for the doctor to operate.

[0049] Those skilled in the art should understand that the embodiments of the present utility model described above and shown in the accompanying drawings are only examples and do not limit the present utility model. The advantages of the present utility model have been fully and effectively realized. The functions and structural principles of the present utility model have been demonstrated and explained in the embodiments, and the embodiments of the present utility model may have any deformation or modification without departing from the above-mentioned principles.

Claims

1. A multi-channel puncture device, characterized in that: The multi-channel puncture device comprises: Puncture mechanism; A sample collection mechanism, the sample collection mechanism includes a sample collection component, the sample collection component is installed on the puncture mechanism, the sample collection component forms a holding cavity and a moving channel connected to the holding cavity, the sample collection component has an opening connected to the holding cavity and the moving channel on the side, the holding cavity is used to store the excised tissue, the puncture mechanism has a plurality of operating channels, exhaust channels and air intake channels connected to the moving channel, the operating channel allows surgical instruments to pass through, the surgical instruments passing through the operating channel extend from the opening into the cavity through the moving channel, the puncture mechanism is respectively connected to an air supply device and a negative pressure device, wherein the negative pressure device is connected to the exhaust channel, and the air supply device is connected to the air intake channel.

2. The multi-channel puncture device according to claim 1, characterized in that: The puncture mechanism includes a cover assembly, multiple connecting parts and a connecting assembly, wherein the sample collection assembly is installed on the cover assembly, each of the connecting parts forms an operating channel, and multiple connecting parts are installed on the cover assembly at intervals in a manner of penetrating the cover assembly. The connecting assembly includes an air inlet member and an air outlet member, the air inlet member forms the air inlet channel, the air inlet member is installed on the cover assembly and communicated with the moving channel, the air inlet member is connected to the air supply device, and the air outlet member includes a joint and a suction tube, the joint is installed on the cover assembly, and the joint is respectively connected to the negative pressure device and the suction tube, wherein the suction tube extends into the moving channel, and the joint and the suction tube together form the discharge channel.

3. The multi-channel puncture device according to claim 2, characterized in that: One end of the suction tube away from the joint protrudes from the opening.

4. The multi-channel puncture device according to claim 3, characterized in that: The cover assembly includes a cover member and a ring member, the sample collection assembly is mounted on the ring member, the cover member is mounted on the ring member in a manner of being rotatable around an extending direction of the operation channel, and the connecting member is mounted on the cover member.

5. The multi-channel puncture device according to claim 4, characterized in that: The sample collection assembly includes a collection bag and an assembly, the assembly is ring-shaped, the collection bag includes a neck and a bag portion, the neck extends vertically and forms the moving channel, the bag portion is arranged at the lower end of the neck, the bag portion forms the opening and the containing cavity, one end of the neck away from the bag portion is fixedly mounted on the side wall of the assembly, and the assembly is detachably mounted on one end of the ring away from the cover.

6. The multi-channel puncture device according to claim 5, characterized in that: The side wall of the neck is provided with scale lines in the extending direction of the moving channel.

7. The multi-channel puncture device according to claim 5 or 6, characterized in that: The opening is elliptical or semi-elliptical in the vertical direction.

8. The multi-channel puncture device according to claim 7, characterized in that: The sample collection mechanism also includes two pulling ropes, the opening has a high end and a bottom end lower than the high end, the two pulling ropes are respectively located on both sides of the opening, each pulling rope has a fixed end and a traction end, the fixed end and the traction end are respectively the two ends of the pulling rope in the length direction, wherein the fixed end is fixedly mounted on the bag portion and close to the bottom end of the opening, and the traction end remains retained outside the body.

9. The multi-channel puncture device according to claim 8, characterized in that: Two limiting holes are formed on the outer peripheral side of the ring, and the traction end passes through the limiting holes.

10. The puncture mechanism is characterized in that: The puncture mechanism comprises: A cover assembly, the cover assembly comprising a cover member and a ring member, the cover member being mounted on the ring member in a manner rotatable around an axial direction of the ring member; A plurality of connecting members, the connecting members forming an operation channel, and the plurality of connecting members are installed on the cover member at intervals in a manner of penetrating the cover assembly; A connecting component, the connecting component includes an air inlet piece and an air outlet piece, the air inlet piece is installed on the cover component, the air inlet piece is connected to the air supply device, the air outlet piece is installed on the cover component, and the air outlet piece is connected to the negative pressure device.

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