Single hole multi-pass puncture device and gas circulation system for laparoscopic surgery

Abstract

The utility model provides a kind of single-hole multi-channel puncture and for laparoscopic surgery gas circulation system, belong to medical equipment technical field including: multi-channel platform, multi-channel platform is provided with at least three independent gas interface, each gas interface is communicated with multi-channel platform inside;Among them, at least one gas interface is set as gas injection pressure measurement interface, at least one gas interface is set as circulating gas injection interface, at least one gas interface is set as circulating smoke exhaust interface;The utility model has the beneficial effects that: provide a kind of puncture with three interfaces, three interfaces are used for gas injection pressure measurement, circulating gas injection and circulating smoke exhaust respectively, and can isolate gas injection pressure measurement interface and other two interfaces, so that smoke circulation can be carried out in real time, can effectively suppress pressure fluctuation, reduce breathing effect, so that small cavity operation can be carried out smoothly.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and relates to a single-port multi-channel puncture device and a gas circulation system for laparoscopic surgery. Background Technology

[0002] In recent years, with the increasing demand for minimally invasive treatments from patients, open surgery has been increasingly replaced by laparoscopic minimally invasive surgery. Natural orifice endoscopic surgery (NOTES), as a truly scarless procedure, is also gradually gaining popularity. The single-port multi-channel trocar, as a key instrument in the NOTES surgical system, is receiving increasing market attention, especially in small-cavity surgeries such as TaTME (transanal total mesorectal excision).

[0003] Currently, single-port multi-channel puncture devices on the market are usually equipped with only two gas ports: one for connecting to an insufflator for insufflation, and the other for connecting to a negative pressure suction device or other insufflators with suction circulation function to achieve smoke removal.

[0004] However, due to the small cavity volume and pressure feedback sensitivity of small cavity surgery, the use of this trocar with two gas ports in small cavity surgery can easily lead to over-inflation of the pneumoperitoneum machine or over-extraction of the suction device, resulting in large pressure fluctuations in the cavity, aggravated respiratory effects, and in severe cases, even interruption of the operation or other safety hazards. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a single-port multi-channel trocar and a gas circulation system for laparoscopic surgery.

[0006] The objective of this utility model can be achieved through the following technical solution: A single-hole multi-channel puncture device, comprising: a multi-channel platform, wherein the multi-channel platform is provided with at least three independent gas interfaces, each of the gas interfaces being connected to the interior of the multi-channel platform; wherein at least one of the gas interfaces is configured as an injection pressure measurement interface, at least one of the gas interfaces is configured as a circulating gas injection interface, and at least one of the gas interfaces is configured as a circulating smoke exhaust interface.

[0007] Preferably, the multi-channel platform is equipped with a flexible channel seat, the flexible channel seat is provided with at least one instrument channel, and the instrument channel is in communication with the interior of the multi-channel platform.

[0008] Preferably, the number of instrument channels is multiple, wherein at least one of the instrument channels has a diameter of 10 mm or 12 mm.

[0009] Preferably, the gas interface is equipped with a pagoda-shaped connector, a Luer connector, or a medical quick-connect connector.

[0010] Preferably, the gas interface is disposed on the peripheral surface of the multi-channel platform.

[0011] A gas circulation system for laparoscopic surgery, comprising the aforementioned single-port multi-channel trocar.

[0012] Preferably, it also includes an injection pressure testing pipeline, a circulating injection pipeline, and a circulating smoke exhaust pipeline, wherein the injection pressure testing pipeline is connected to the injection pressure testing interface, the circulating injection pipeline is connected to the circulating injection interface, and the circulating smoke exhaust pipeline is connected to the circulating smoke exhaust interface.

[0013] Preferably, the device also includes an insufflator with a circulating smoke exhaust function, wherein the air injection pressure testing pipeline is connected to the air injection port of the insufflator, the circulating air injection pipeline is connected to the filter outlet of the insufflator, and the circulating smoke exhaust pipeline is connected to the filter inlet of the insufflator.

[0014] Preferably, the gas flow direction of the gas injection pressure measuring pipeline and the gas flow direction of the circulating gas injection pipeline are both towards the interior of the multi-channel platform, and the gas flow direction of the circulating smoke exhaust pipeline is towards the interior of the multi-channel platform.

[0015] Preferably, the circulating air injection line and the circulating smoke exhaust line establish a circulation loop between the multi-channel platform and the pneumoperitoneum machine.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. A puncture device with three interfaces is provided. The three interfaces are used for gas injection and pressure measurement, circulating gas injection, and circulating smoke extraction, respectively. The gas injection and pressure measurement interface can be isolated from the other two interfaces, so that the smoke extraction circulation can be carried out in real time. It can effectively suppress pressure fluctuations, reduce respiratory effects, and enable small cavity surgery to be performed smoothly.

[0017] 2. Because the gas injection pressure measurement port, the circulating gas injection port, and the circulating smoke exhaust port are independent of each other, after the gas injection pressure measurement port of the single-port multi-channel trocar injects gas into the surgical cavity to establish an initial pneumoperitoneum, and the pressure in the abdominal cavity rises to the set value, the gas injection pressure measurement port stops injecting gas. Then, the smoke in the pneumoperitoneum is discharged through the circulating smoke exhaust port, while the circulating gas injection port injects purified and filtered gas into the pneumoperitoneum, thus establishing a smoke exhaust and gas injection cycle. Because the flow rate of the extracted gas (including smoke) equals the flow rate of the injected gas in the smoke exhaust and gas injection cycle, and the pressure measurement is performed in real time by a separate pipe without intermittently occupying the circulating gas injection port, the smoke exhaust and gas injection cycle can be carried out in real time. This ensures that the cavity is not impacted while achieving smoke exhaust, thereby suppressing pressure fluctuations and reducing the respiratory effect.

[0018] 3. Three independent gas interfaces realize different gas path control functions. The gas injection and pressure measurement interface is responsible for the initial gas injection and real-time pressure monitoring of the surgical cavity. The circulating smoke exhaust interface is used to draw out the smoke mixture in the surgical cavity under negative pressure. The circulating gas injection interface is used to re-inject the purified and filtered gas into the cavity. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the single-hole multi-channel puncture device of this utility model.

[0020] Figure 2 This is a schematic diagram illustrating the working principle of the gas circulation system of this utility model.

[0021] Figure 3 This is a schematic diagram of the gas circulation system of this utility model.

[0022] In the diagram, 100 is the multi-channel platform; 110 is the gas injection and pressure measurement interface; 120 is the circulating gas injection interface; 130 is the circulating smoke exhaust interface; 200 is the flexible channel seat; 210 is the instrument channel; 300 is the pneumoperitoneum machine; 310 is the gas injection and pressure measurement pipeline; 320 is the circulating gas injection pipeline; and 330 is the circulating smoke exhaust pipeline. Detailed Implementation

[0023] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0024] like Figures 1 to 3 As shown, a single-port multi-channel puncture device includes: a multi-channel platform 100, the multi-channel platform 100 being provided with at least three independent gas interfaces, each gas interface being connected to the interior of the multi-channel platform 100; wherein, at least one gas interface is configured as an injection pressure measurement interface 110, at least one gas interface is configured as a circulating injection interface 120, and at least one gas interface is configured as a circulating smoke exhaust interface 130.

[0025] The three independent gas interfaces realize different gas path control functions. The gas injection and pressure measurement interface 110 is responsible for the initial gas injection and real-time pressure monitoring of the surgical cavity. The circulating smoke exhaust interface 130 is used to draw the smoke mixture in the surgical cavity under negative pressure. The circulating gas injection interface 120 is used to re-inject the purified and filtered gas into the cavity.

[0026] The reason why the three independent gas ports in this trocar can suppress pressure fluctuations in the cavity and reduce respiratory effects is as follows: Since the gas injection pressure measuring port 110, the circulating gas injection port 120, and the circulating smoke exhaust port 130 are independent of each other, when the gas injection pressure measuring port 110 of the single-port multi-channel trocar injects gas into the surgical cavity to establish an initial pneumoperitoneum, and when the pressure in the abdominal cavity rises to the set value, the gas injection pressure measuring port 110 stops injecting gas. Then, the smoke in the pneumoperitoneum is discharged through the circulating smoke exhaust port 130, while the circulating gas injection port 120 injects purified and filtered gas into the pneumoperitoneum, thereby establishing a smoke exhaust and gas injection cycle.

[0027] In theory, this cycle can be maintained until the end of the surgery if there is no gas leakage. Because in the smoke extraction and gas injection cycle, the flow rate of the extracted gas (including smoke) equals the flow rate of the injected gas, and the pressure measurement is carried out in real time by a separate pipeline without intermittently occupying the circulation gas injection port 120, the smoke extraction and gas injection cycle can be carried out in real time. When smoke extraction is achieved, it will not cause impact on the cavity, thereby suppressing pressure fluctuations and reducing the breathing effect.

[0028] If gas leakage reaches the threshold during the above process, the pneumoperitoneum machine 300 will intervene and replenish gas through the gas injection and pressure testing pipeline 310 until the pressure inside the cavity reaches the target value, and then restart the above cycle. During this period, the smoke exhaust and gas injection cycle will not be affected.

[0029] It should be noted that existing puncture devices only have two gas ports. To achieve the above purpose, a third port is usually added artificially in the following two ways. Method 1: Insert a 5mm trocar into the largest instrument channel of the trocar (usually a 12mm or 10mm trocar port), and connect a separate air injection line to the Luer connector attached to the 5mm trocar.

[0030] Method 2: Make another hole in the patient's body, insert a trocar, and connect a separate insufflation line to the Luer connector attached to the trocar.

[0031] Both of these methods have drawbacks. Firstly, an additional trocar is required, increasing costs. In the first method, the extra trocar occupies the largest instrument channel of the single-port multi-channel trocar, making it difficult for larger diameter instruments to pass through. The second method negates the benefits of NOTES or single-port surgery, increasing the patient's wound, and is not suitable for all procedures.

[0032] In this single-port multi-channel trocar, three independent gas interfaces are designed on the multi-channel platform 100. The three gas interfaces are used for gas injection and pressure measurement, circulating gas injection, and circulating smoke extraction, respectively. The gas injection and pressure measurement interface 110 is isolated from the other two interfaces, so that the smoke extraction circulation can be carried out in real time. This can effectively suppress pressure fluctuations, reduce the respiratory effect, and enable small cavity surgery to be performed smoothly.

[0033] Based on the above embodiments, the multi-channel platform 100 is equipped with an elastic channel seat 200, the elastic channel seat 200 is provided with at least one instrument channel 210, and the instrument channel 210 is connected to the interior of the multi-channel platform 100.

[0034] Based on the above embodiments, there are multiple instrument channels 210, of which at least one instrument channel 210 has a diameter of 10 mm or 12 mm.

[0035] Because the multi-channel platform 100 integrates three gas interfaces, it can completely retain all instrument channels 210. That is, instrument channels 210 will not be used for gas injection or smoke exhaust, but can be used to insert various surgical instruments such as endoscopes, grasping forceps, electrosurgical units, and suture devices.

[0036] Based on the above embodiments, the gas interface is equipped with a pagoda-shaped connector, a Luer connector, or a medical quick-connect connector.

[0037] Based on the above implementation method, the gas interface is disposed on the peripheral surface of the multi-channel platform 100.

[0038] like Figures 1 to 3 As shown, a gas circulation system for laparoscopic surgery includes a single-port multi-channel trocar. It also includes an injection pressure monitoring line 310, a circulating injection line 320, and a circulating smoke exhaust line 330. The injection pressure monitoring line 310 is connected to an injection pressure monitoring interface 110, the circulating injection line 320 is connected to a circulating injection interface 120, and the circulating smoke exhaust line 330 is connected to a circulating smoke exhaust interface 130.

[0039] Based on the above embodiments, it also includes an insufflator 300 with a circulating smoke exhaust function, an air injection and pressure testing pipeline 310 connected to the air injection port of the insufflator 300, a circulating air injection pipeline 320 connected to the filter outlet of the insufflator 300, and a circulating smoke exhaust pipeline 330 connected to the filter inlet of the insufflator 300.

[0040] Based on the above implementation method, the gas flow direction of the gas injection pressure measuring pipeline 310 and the gas flow direction of the circulating gas injection pipeline 320 are both towards the interior of the multi-channel platform 100, and the gas flow direction of the circulating smoke exhaust pipeline 330 is towards the interior of the multi-channel platform 100.

[0041] Based on the above implementation method, the circulating air injection pipeline 320 and the circulating smoke exhaust pipeline 330 establish a circulation loop between the multi-channel platform 100 and the pneumoperitoneum machine 300.

[0042] This system is suitable for single-port small-cavity surgeries, such as TaTME (transanal total mesorectal excision) and NOTES (natural orifice endoscopic surgery). A single-port multi-channel trocar is inserted into the patient and connected to the surgical cavity. The pneumoperitoneum machine 300 has the functions of inflating, monitoring pressure, extracting the smoke mixture generated during the operation and re-introducing it into the cavity after purification.

[0043] The working process and principle of this gas circulation system used in laparoscopic surgery are as follows: S1: When the insufflator 300 is working, it injects initial gas into the cavity through the gas injection pressure measuring line 310 and the gas injection pressure measuring interface 110. The pressure in the cavity gradually increases. When the pressure in the cavity reaches the set value, the insufflator 300 stops injecting gas and monitors the pressure in the cavity in real time through the gas injection pressure measuring interface 110. S2: The insufflator 300 extracts gas from the cavity through the circulating smoke exhaust pipe 330 and the circulating smoke exhaust port 130. After the extracted gas is filtered and purified by the filter of the insufflator 300, it is reinjected into the cavity through the circulating air injection pipe 320 and the circulating air injection port 120. This process forms a closed gas cycle.

[0044] In theory, if there is no gas leakage during the above process, the gas circulation will continue until the end of the surgery. Because the flow rate of gas (including smoke) extracted by the smoke extraction and gas injection circulation is equal to the flow rate of gas injected by the smoke extraction and gas injection circulation, and the pressure measurement is carried out in real time by the gas injection pressure measurement line 310, without the need to intermittently occupy the circulation gas injection line 320, the smoke extraction and gas injection circulation can be carried out continuously and in real time. When smoke extraction is achieved, it will not cause impact on the cavity, thereby suppressing pressure fluctuations and reducing or eliminating the respiratory effect.

[0045] If gas leakage reaches the threshold during the above process, the pneumoperitoneum machine 300 will intervene and replenish gas through the gas injection and pressure testing pipeline 310 until the pressure inside the cavity reaches the set value, and then restart the above cycle. During this period, the smoke exhaust and gas injection cycle will not be affected.

[0046] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0047] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A single-port multi-channel puncture device, characterized in that, include: A multi-channel platform (100) is provided with at least three independent gas interfaces, each of which is connected to the interior of the multi-channel platform (100); wherein at least one of the gas interfaces is configured as an injection pressure measurement interface (110), at least one of the gas interfaces is configured as a circulating gas injection interface (120), and at least one of the gas interfaces is configured as a circulating smoke exhaust interface (130).

2. The single-port multi-channel puncture device as described in claim 1, characterized in that: The multi-channel platform (100) is equipped with a flexible channel seat (200), and the flexible channel seat (200) is provided with at least one instrument channel (210), which is in communication with the interior of the multi-channel platform (100).

3. The single-port multi-channel puncture device as described in claim 2, characterized in that: The number of instrument channels (210) is multiple, wherein at least one of the instrument channels (210) has a diameter of 10 mm or 12 mm.

4. The single-port multi-channel puncture device as described in claim 1, characterized in that: The gas interface is equipped with a pagoda-shaped connector, a Luer connector, or a medical quick-connect connector.

5. The single-port multi-channel puncture device as described in claim 1, characterized in that: The gas interface is located on the peripheral surface of the multi-channel platform (100).

6. A gas circulation system for laparoscopic surgery, characterized in that, Includes the single-port multi-channel puncture device as described in any one of claims 1 to 5.

7. A gas circulation system for laparoscopic surgery as described in claim 6, characterized in that: It also includes an injection pressure measuring pipeline (310), a circulating injection pipeline (320), and a circulating smoke exhaust pipeline (330). The injection pressure measuring pipeline (310) is connected to the injection pressure measuring interface (110), the circulating injection pipeline (320) is connected to the circulating injection interface (120), and the circulating smoke exhaust pipeline (330) is connected to the circulating smoke exhaust interface (130).

8. A gas circulation system for laparoscopic surgery as described in claim 7, characterized in that: It also includes an insufflator (300) with a circulating smoke exhaust function, wherein the air injection pressure measuring pipeline (310) is connected to the air injection port of the insufflator (300), the circulating air injection pipeline (320) is connected to the filter outlet of the insufflator (300), and the circulating smoke exhaust pipeline (330) is connected to the filter inlet of the insufflator (300).

9. A gas circulation system for laparoscopic surgery as described in claim 7, characterized in that: The gas flow direction of the gas injection pressure measuring pipeline (310) and the gas flow direction of the circulating gas injection pipeline (320) are both towards the interior of the multi-channel platform (100), and the gas flow direction of the circulating smoke exhaust pipeline (330) is towards the interior of the multi-channel platform (100).

10. A gas circulation system for laparoscopic surgery as described in claim 8, characterized in that: The circulating air injection line (320) and the circulating smoke exhaust line (330) establish a circulation loop between the multi-channel platform (100) and the pneumoperitoneum machine (300).

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