Pipe sleeve needle assembly beneficial to smoke exhaust in intelligent gas circulation system
By setting up an inclined air injection port and bellows-like structure on the tube trocar assembly of the intelligent gas circulation system, the problem of insufficient smoke exhaust under the small-diameter trocar is solved, and the smoke exhaust effect in the abdominal cavity is improved, ensuring a clear field of surgery.
Patent Information
- Application Number
- CN202420601553.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-03-26
AI Technical Summary
When the existing intelligent gas circulation system is in a small-diameter trocar, the vacuum pump's smoke exhaust is insufficient, resulting in the inability to discharge the abdominal smoke in time, affecting the clear vision of the surgical field.
Design a tube trocar assembly of an intelligent gas circulation system. The bottom end of the trocar injector is equipped with at least a pair of inclined air injection ports. The airflow impacts each other when injected into the abdominal cavity to avoid the generation of resistance to the smoke exhaust direction and passes through corrugation. The tubular structure and wind shield improve the smoke exhaust effect.
It effectively improves the smoke exhaust effect of the pneumatic abdominal machine, ensures clear vision in the abdominal cavity, reduces the interference of gas on smoke exhaust during the operation, and enhances the feasibility of the operation.
Smart Images
Figure CN222341273U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments in abdominal surgery, in particular to a tube sleeve needle assembly which is beneficial to smoke exhaust in an intelligent gas circulation system. Background Art
[0002] Laparoscopic or "minimally invasive" surgical techniques are becoming more and more common in performing procedures such as cholecystectomy, appendectomy, hernia repair, and nephrectomy. The benefits of these procedures include reduced trauma to the patient, reduced chance of infection, and reduced recovery time. These procedures within the abdominal (peritoneal) cavity are typically performed via a device known as a trocar or cannula that facilitates the introduction of laparoscopic instruments into the patient's abdominal cavity.
[0003] In addition, such a process typically involves filling or "insufflating" the abdominal cavity with a pressurized fluid such as carbon dioxide to produce what is known as pneumoperitoneum. Insufflation can be performed through a surgical access device (sometimes called a "cannula" or "trocar") equipped with a gas delivery line, or through a separate insufflation device, such as an insufflation (non-porous) needle. In addition, in the actual operation of laparoscopic surgical techniques or "minimally invasive" surgical techniques, other related equipment is often required to effectively perform a complete operation. These equipment may include, for example, scissors, grasping instruments and occlusion instruments, cauterization units, endoscopic equipment, light sources and other surgical instruments. Therefore, during the operation, a good smoke evacuation effect allows the doctor to obtain a sufficiently clear abdominal space and ensures that the various devices work together steadily, which is particularly important for the high-quality and effective performance of the operation.
[0004] The existing intelligent gas circulation systems on the market will match different caliber trocars for connecting to the abdominal cavity according to different surgical needs when performing different surgeries. Usually, two specifications of trocars are matched: one specification of trocar is used in situations where a vacuum pump is continuously working inside the pneumoperitoneum machine. Its main function is to maintain airtightness and exhaust the smoke generated by surgery in the abdominal cavity; the other specification of trocar is used in situations where there is no vacuum pump. It can maintain stable abdominal cavity pressure by real-time gas injection based on the pressure sensing device. For another specification of trocar, such as Figure 1As shown in the figure, the intelligent gas circulation system 1 is connected to the gas injection tube trocar 2 and the smoke removal tube trocar 3. When in use, the gas injection tube trocar 2 and the smoke removal tube trocar 3 are both inserted into the simulated abdominal cavity 4. The gas injection tube trocar 2 mainly injects gas vertically into the abdominal cavity from its own root. When matching with a smaller-caliber trocar, the exhaust space is small, and the smoke exhaust suction of the vacuum pump will be relatively weak, resulting in smoke in the abdominal cavity. When the gas injection tube trocar 2 injects gas longitudinally, the injected gas will push the smoke away from the smoke removal tube trocar 3 used for smoke exhaust. That is, the gas injected longitudinally forms a resistance to the smoke exhaust trocar, resulting in the inability to discharge the abdominal cavity smoke in time, causing blurred vision inside the abdominal cavity and interfering with the surgical effect. Utility Model Content
[0005] The technical problem to be solved by the utility model is to provide a tube-and-needle assembly which is conducive to smoke exhaust in an intelligent gas circulation system, and utilizes paired gas injection ports with certain directions to enable the airflows injected into the abdominal cavity to impact and offset each other, and will not produce a force opposite to the longitudinal smoke exhaust direction of the smoke removal tube-and-needle, thereby not affecting the smoke exhaust effect of the pneumoperitoneum machine.
[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0007] A tube trocar assembly that is beneficial to smoke exhaust in an intelligent gas circulation system includes an injection tube trocar, the bottom end of the injection tube trocar is sealed, and at least one pair of injection ports is opened on the bottom side of the injection tube trocar. In each pair of the injection ports, the vertical center planes of the two injection ports intersect at the outer side of the bottom of the injection tube trocar, and each of the injection ports is inclined along its own vertical center plane in a horizontal plane.
[0008] Furthermore, in each pair of the gas injection ports, the included angle between the vertical center planes of the two gas injection ports after intersection is in the range of 45° to 90°.
[0009] Preferably, there is a pair of gas injection ports.
[0010] Preferably, there are more than one pair of gas injection ports.
[0011] Furthermore, the gas injection port is a round hole or a waist-shaped hole.
[0012] Furthermore, the bottom shape of the gas injection tube trocar is an inverted conical cylindrical platform, and the gas injection port is arranged on the side of the inverted conical cylindrical platform.
[0013] Furthermore, the tube wall of the gas injection tube trocar is in the shape of a corrugated tube.
[0014] Furthermore, it also includes a smoke removal tube trocar, the tube wall of the smoke removal tube trocar is in a corrugated tube shape, and the bottom surface of the smoke removal tube trocar is provided with an air outlet.
[0015] Furthermore, it also includes a wind shield, which includes a cylindrical connecting part, a wind shield slope and a smooth bottom, the cylindrical connecting part is connected to the bottom end face of the gas injection tube sleeve needle, the wind shield slope is opposite to the side of the inverted cone cylindrical table where the gas injection port is located, and the smooth bottom is integrally connected to the bottom of the wind shield slope.
[0016] Furthermore, the wind shield is a thin-walled structure or a solid structure.
[0017] The beneficial effect of the utility model is that in each pair of the gas injection ports, each gas injection port is arranged obliquely, and the airflows coming out of the paired gas injection ports meet outside the gas injection tube trocar, so that the gases coming out of the gas injection ports impact and offset each other, thereby not generating a force opposite to the longitudinal smoke exhaust direction of the smoke removal tube trocar, and filling the abdominal cavity with gas can improve the smoke exhaust effect of the pneumoperitoneum machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A schematic diagram of the gas injection and smoke exhaust process of the intelligent gas circulation system in the background technology;
[0019] Figure 2 This is a schematic diagram of the structure of the intelligent gas circulation system of an embodiment of the utility model;
[0020] Figure 3 A three-dimensional diagram of a gas injection tube trocar according to an embodiment of the utility model;
[0021] Figure 4 For the utility model embodiment Figure 3 A partial enlarged view of
[0022] Figure 5 A bottom view of the gas injection tube trocar according to an embodiment of the utility model;
[0023] Figure 6 This is a three-dimensional diagram of the connection between the gas injection tube trocar and the wind shielding member according to an embodiment of the utility model.
[0024] Description of labels:
[0025] 1. Intelligent gas circulation system; 2. Gas injection tube trocar; 3. Smoke removal tube trocar; 4. Simulated abdominal cavity;
[0026] 11. Gas injection tube trocar; 111. Gas injection port; 12. Smoke removal tube trocar; 121. Gas outlet; 13. Intelligent gas circulation system; 14. Simulated abdominal cavity; 15. Wind shield; 151. Cylindrical connecting part; 152. Wind shield slope; 153. Smooth bottom. DETAILED DESCRIPTION
[0027] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.
[0028] Please refer to Figures 2 to 6 , the embodiments provided by the utility model are:
[0029] A tube trocar assembly for smoke exhaust in an intelligent gas circulation system includes a gas injection tube trocar 11, such as Figure 2 As shown, the gas injection tube trocar 11 and the smoke removal tube trocar 12 are connected to the intelligent gas circulation system 13 through a hose, and the bottom ends of the gas injection tube trocar 11 and the smoke removal tube trocar 12 are extended into the simulated abdominal cavity 14. Specifically, as shown Figures 3 to 5 As shown, the bottom end of the gas injection tube trocar 11 is sealed, and at least one pair of gas injection ports 111 are provided on the bottom side of the gas injection tube trocar 11. In each pair of the gas injection ports 111, the vertical center planes of the two gas injection ports 111 intersect at the outer side of the bottom of the gas injection tube trocar 11, and each of the gas injection ports 111 is inclined along its own vertical center plane in the horizontal plane. Generally speaking, in each pair of gas injection ports 111, the two gas injection ports 111 are arranged opposite to each other in the transverse direction, and the airflows injected from the two gas injection ports 111 impact and offset each other in the transverse direction, so that the airflow injected from each pair of gas injection ports 111 will not impact in the longitudinal direction, thereby not generating additional resistance to the longitudinal smoke exhaust of the smoke removal tube trocar 12 connected to the intelligent gas circulation system 13, thereby ensuring the longitudinal smoke exhaust effect during abdominal surgery. At the same time, new gas can be injected into the abdominal cavity from the gas injection tube trocar 11, which can increase the original pressure of the abdominal cavity, promote the discharge of old gas in the abdominal cavity, and improve the abdominal smoke exhaust effect.
[0030] Furthermore, in each pair of the gas injection ports 111, the angle range of the intersection of the vertical center planes of the two gas injection ports 111 is 45° to 90°, which can ensure that the gases discharged from each pair of gas injection ports 111 can impact and offset each other, and then become gases with lower speed and slowly diffuse in the abdominal cavity.
[0031] Preferably, there is a pair of gas injection ports 111 , and in a horizontal plane, the gases discharged from the two gas injection ports 111 impact and offset each other.
[0032] Preferably, there are more than one pair of gas injection ports 111, so that in the horizontal plane, the gas injected into the abdominal cavity enters the abdominal cavity from multiple directions, and after entering the abdominal cavity, the gases coming out of the paired gas injection ports 111 impact and offset each other, thereby further reducing the influence of the gas injected into the abdominal cavity on the longitudinal smoke exhaust effect.
[0033] Detailed, attached Figure 5For example, there are two pairs of gas injection ports 111, namely, two gas injection ports 111 on the left and two gas injection ports 111 on the right. Airflow 1 and airflow 2 respectively coming out of the two gas injection ports 111 on the left impact and offset each other, and airflow 3 and airflow 4 respectively coming out of the two gas injection ports 111 on the right impact and offset each other. The inclination direction 1 and the inclination direction 2 of the two gas injection ports 111 on the right intersect. In the figure, the inclination direction 1 and the inclination direction 2 are respectively parallel to the vertical center plane of the corresponding gas injection port 111, and the angle between the inclination directions of the two is α, and the range of the angle α is 45° to 90°.
[0034] Furthermore, the gas injection port 111 is a circular hole or a waist-shaped hole. If the gas injection port 111 is a circular hole, the side wall of the gas injection port 111 is parallel to the vertical center plane of the gas injection port; if the gas injection port 111 is a waist-shaped hole, the vertical side wall of the gas injection port 111 is parallel to the vertical center plane of the gas injection port, wherein the so-called waist-shaped hole refers to a figure formed by connecting two oppositely arranged semicircular arcs with two parallel and equal line segments.
[0035] Furthermore, the bottom shape of the gas injection tube trocar 11 is an inverted cone cylindrical platform, and the gas injection port 111 is arranged on the side of the inverted cone cylindrical platform. The so-called inverted cone cylindrical platform here refers to a cylindrical platform whose diameter gradually decreases from top to bottom and whose top and bottom surfaces are both flat. Of course, the bottom inverted cone cylindrical platform of the gas injection tube trocar 11 is actually a shell structure. The bottom shape of the gas injection tube trocar 11 is an inverted cone cylindrical platform to facilitate the insertion of the gas injection tube trocar 11 into the abdominal cavity of the human body, and the gas injection port 111 is arranged on the side of the inverted cone cylindrical platform to minimize the length of the gas injection tube trocar 11 extending into the abdominal cavity and save the space required for the abdominal cavity.
[0036] Furthermore, the tube wall of the gas injection tube trocar 11 is in a corrugated tube shape, which can make the gas injection tube trocar 11 stay at a suitable position of the abdominal wall, and the gas injection tube trocar 11 is not easy to move up and down during the operation.
[0037] Furthermore, it also includes a smoke removal tube trocar 12 , the tube wall of the smoke removal tube trocar 12 is in a corrugated tube shape, and the bottom surface of the smoke removal tube trocar 12 is provided with an air outlet 121 .
[0038] For further information, please refer to Figure 6As shown, it also includes a wind shield 15, which includes a cylindrical connecting portion 151, a wind shield slope 152 and a smooth bottom 153. The cylindrical connecting portion 151 is connected to the bottom end surface of the gas injection tube trocar 11, the wind shield slope 152 is opposite to the side surface of the inverted conical cylindrical table where the gas injection port 111 is located, and the smooth bottom 153 is integrally connected to the bottom of the wind shield slope 152. Specifically, the diameter of the cylindrical connection part 151 is less than or equal to the bottom surface of the inverted cone cylindrical platform, and the cylindrical connection part 151 does not block the gas injection port 111. In addition to the gas coming out of the gas injection port 111 impacting and offsetting each other in pairs, a part of the gas will first contact the wind shield slope 152 to be decelerated and then dispersed into the abdominal cavity, which is equivalent to the gas coming out of the gas injection port 111 being impacted and offset by the gas coming out of the paired gas injection port 111 in the horizontal direction, and being blocked by the wind shield slope 152 of the wind shield 15 in the vertical direction, thereby further making the gas coming out of the gas injection port 111 disperse in the abdominal cavity at a very low speed, further ensuring that the gas filled in will not affect the longitudinal smoke exhaust effect of the smoke removal tube trocar 12, and under the action of the inflation pressure, the smoke exhaust effect will be improved. Through the smooth bottom 153, the damage of the tube trocar assembly to human tissue is reduced, and the patient's pain is relieved.
[0039] Specifically, the cylindrical connecting portion 151 of the wind shield 15 is connected to the bottom end surface of the gas injection tube trocar 11 by threaded connection or ultrasonic welding.
[0040] Furthermore, the wind shield 15 is a thin-walled structure. After a portion of the gas entering the gas injection tube trocar 11 reaches the inside of the wind shield 15, the pressure gradually increases, and then it is discharged through the gas injection port 111 and enters the abdominal cavity.
[0041] Alternatively, the wind shield 15 is a solid structure. The gas entering the gas injection tube trocar 11 is directly discharged through the gas injection port 111 and enters the abdominal cavity.
[0042] In summary, the tube trocar assembly that is beneficial to smoke exhaust in the intelligent gas circulation system provided by the utility model, by setting at least one pair of relatively arranged gas injection ports 111, can make the airflow injected into the abdominal cavity impact and offset each other in the lateral direction, and can also increase the gas pressure in the abdominal cavity, thereby not affecting the longitudinal smoke exhaust airflow of the smoke removal tube trocar 12, and can also improve the abdominal smoke exhaust effect, so as to make the internal field of view of the abdominal cavity clear during surgery, providing favorable conditions for the smooth progress of the operation.
[0043] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.
Claims
1. A tube-and-needle assembly for smoke exhaust in an intelligent gas circulation system, characterized in that: The invention comprises an air injection tube trocar (11), the bottom end of the air injection tube trocar (11) is sealed, and at least one pair of air injection ports (111) are provided on the bottom side of the air injection tube trocar (11). In each pair of the air injection ports (111), the vertical center planes of the two air injection ports (111) intersect at the outer side of the bottom of the air injection tube trocar (11), and each of the air injection ports (111) is arranged obliquely along its own vertical center plane in a horizontal plane.
2. The tube-and-needle assembly for facilitating smoke exhaust in the intelligent gas circulation system according to claim 1, characterized in that: In each pair of the gas injection ports (111), the included angle between the vertical center planes of the two gas injection ports (111) after intersection is in the range of 45° to 90°.
3. The tube-and-needle assembly for facilitating smoke exhaust in the intelligent gas circulation system according to claim 1, characterized in that: There is a pair of gas injection ports (111).
4. The tube-and-needle assembly for facilitating smoke exhaust in the intelligent gas circulation system according to claim 1, characterized in that: There are more than one pair of gas injection ports (111).
5. The tube-and-needle assembly for facilitating smoke exhaust in the intelligent gas circulation system according to claim 1, characterized in that: The gas injection port (111) is a round hole or a waist-shaped hole.
6. The tube-and-needle assembly for facilitating smoke exhaust in the intelligent gas circulation system according to claim 1, characterized in that: The bottom shape of the gas injection tube trocar (11) is an inverted conical cylindrical platform, and the gas injection port (111) is arranged on the side of the inverted conical cylindrical platform.
7. The tube-and-needle assembly for facilitating smoke exhaust in the intelligent gas circulation system according to claim 1, characterized in that: The tube wall of the gas injection tube trocar (11) is in the shape of a corrugated tube.
8. The tube-and-needle assembly for facilitating smoke exhaust in the intelligent gas circulation system according to claim 1, characterized in that: It also comprises a smoke removal tube trocar (12), the tube wall of the smoke removal tube trocar (12) is in the shape of a corrugated tube, and the bottom surface of the smoke removal tube trocar (12) is provided with an air outlet (121).
9. The tube-and-needle assembly for facilitating smoke exhaust in the intelligent gas circulation system according to claim 6, characterized in that: The invention also comprises a wind shield (15), wherein the wind shield (15) comprises a cylindrical connecting portion (151), a wind shield slope (152) and a smooth bottom (153), wherein the cylindrical connecting portion (151) is connected to the bottom end surface of the gas injection tube trocar (11), the wind shield slope (152) faces the side surface of the inverted conical cylindrical platform where the gas injection port (111) is located, and the smooth bottom (153) is integrally connected to the bottom of the wind shield slope (152).
10. The tube-and-needle assembly for facilitating smoke exhaust in the intelligent gas circulation system according to claim 9, characterized in that: The wind shield (15) is a thin-walled structure or a solid structure.