Negative pressure suction pushing and blocking device for thoracoscopic surgery

Abstract

The invention relates to a negative pressure suction pushing and blocking device for thoracoscopic surgery, which comprises a base and a suction tube, the front end face of the base is provided with a breathable pushing and blocking module used for being in contact with lung tissues, and the middle of the base is provided with a hinge hole part penetrating in the front-back direction; the rear end of the suction tube is used for being connected with a thoracoscope aspirator, an inner cavity of the suction tube is used for being communicated with the thoracoscope aspirator to form a main suction channel, the front end of the suction tube extends into the hinge hole part and is hinged to the hinge hole part, and a main suction hole is formed in the surface of the front end of the suction tube. And the main suction hole is communicated with the inner cavity of the suction tube and the hinged hole part. The device is reasonable in structural design, can be matched with a thoracoscope aspirator to achieve negative pressure aspiration, pushes and blocks lung tissue through the breathable pushing and blocking module, is large in pushing and blocking contact area and good in stability, and not only can suck intraoperative liquid, but also can push and block the lung tissue to optimize the operation visual field.

Description

Technical Field

[0001] The present invention belongs to the field of thoracoscopic surgical instruments, and particularly relates to a negative pressure suction and pushing device for thoracoscopic surgery. Background Art

[0002] Currently, in thoracoscopic surgery, in order to keep the surgical field clear, a stainless steel hollow aspirator is often used to achieve negative pressure suction, so as to remove blood, exudate and smoke, and at the same time, the lung tissue is pushed and blocked by the aspirator. However, the existing aspirator has the following deficiencies: (1) During the process of sucking blood or liquid, since the negative pressure aspirator directly acts on the liquid, it is easy to adsorb the surrounding tissues, resulting in a decrease in the liquid suction efficiency. Clinically, sometimes it is necessary to assist with gauze to prevent the tissues from being sucked, but this increases the operation steps and risks; (2) When the existing aspirator pushes and blocks the lung tissue, its contact area is small and the stability is poor, and it is difficult to maintain a fixed angle for a long time. Due to the influence of gravity on the lung tissue, the angle is likely to change during the pushing and blocking process, affecting the surgical operation and safety. Summary of the Invention

[0003] The present invention makes improvements to the above-mentioned problems existing in the prior art, that is, the technical problem to be solved by the present invention is to provide a negative pressure suction and pushing device for thoracoscopic surgery, which is reasonably designed and can not only suck the intraoperative liquid, but also push and block the lung tissue to optimize the surgical field.

[0004] To achieve the above object, the technical solution adopted by the present invention is: a negative pressure suction and pushing device for thoracoscopic surgery, including a base and a suction tube. The front end surface of the base is provided with a breathable pushing and blocking module for contacting the lung tissue, and a hinge hole part is provided in the middle of the base and penetrates in the front and rear directions; the rear end of the suction tube is used for connecting with a thoracoscopic aspirator, the inner cavity of the suction tube is used for communicating with the thoracoscopic aspirator to form a main suction channel, the front end of the suction tube extends into the hinge hole part and is hinged with the hinge hole part, and a main suction hole is opened on the front end surface of the suction tube, and the main suction hole is communicated with the inner cavity of the suction tube and the hinge hole part.

[0005] Further, the inner side surface of the hinge hole part is an arc surface; the front end of the suction tube is provided with a hollow hinge ball head, the inner cavity of the hinge ball head is communicated with the inner cavity of the suction tube, and the hinge ball head and the hinge hole part form a spherical hinge fit; the main suction hole is opened on the spherical surface of the hinge ball head, and the main suction hole is communicated with the inner cavity of the hinge ball head.

[0006] Further, the front and rear ends of the hinge ball head respectively extend out of the hinge hole part; a circular arc accommodating groove for accommodating one end of the hinge ball head extending out of the hinge hole part is provided in the middle of the rear end of the breathable pushing and blocking module.

[0007] Further, there are multiple main suction holes, and the multiple main suction holes are evenly distributed on the front spherical surface of the articulated ball head.

[0008] Further, an annular suction cavity is arranged on the outer peripheral side of the suction tube. The annular suction cavity is not communicated with the inner cavity of the suction tube. A suction pipe is connected to the rear end of the annular suction cavity. The annular suction cavity and the suction pipe form a secondary suction channel. A plurality of secondary suction holes are opened on the outer peripheral side part of the annular suction cavity, and the plurality of secondary suction holes are communicated with the inside of the annular suction cavity.

[0009] Further, the breathable push-block module is formed by stacking and pressing multiple gauze pieces in the front-rear direction to form an integral body.

[0010] Further, an external thread connecting part is arranged at the rear end of the suction tube, and the external thread connecting part is used for screwing with the internal thread hole at the front end of the thoracoscope aspirator.

[0011] Further, a rotation locking part is arranged in the articulated hole part to facilitate locking the articulated ball head after it rotates with the suction tube.

[0012] Further, there is a gap between the inner side surface of the articulated hole part and the spherical surface of the articulated ball head. The rotation locking part is an annular damping pad fixedly arranged on the inner side surface at the rear end of the articulated hole part. The inner peripheral side surface of the damping pad is an arc surface and contacts the spherical surface of the articulated ball head.

[0013] Further, the articulated ball head is made of a metal material. A circular installation groove is arranged on the inner side surface at the rear end of the articulated hole part. The rotation locking part is a suction cup type electromagnet arranged in the installation groove. The suction surface of the suction cup type electromagnet is an arc surface and contacts the spherical surface of the articulated ball head. After the suction cup type electromagnet is energized, it adsorbs the articulated ball head through the suction surface to realize rotation locking.

[0014] Compared with the prior art, the present invention has the following effects: The structure of the present invention is reasonably designed, and it can cooperate with the thoracoscope aspirator to realize negative pressure suction. Moreover, the lung tissue is pushed by the breathable push-block module, and the pushing contact area is large and the stability is good, so that it can not only suck out the intraoperative liquid, but also push the lung tissue to optimize the surgical field of view. By designing the suction tube into a structure hinged to the base, the thoracoscope aspirator can rotate after being connected, and then adjust the angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the main view sectional structure schematic diagram of the first embodiment of the present invention; Figure 2 is the structure schematic diagram of the base and the breathable push-block module in the first embodiment of the present invention; Figure 3 is the structure schematic diagram of the suction tube in the first embodiment of the present invention; Figure 4 is Figure 1 The schematic diagram of the state after the suction tube rotates in Figure 5 is Figure 1 The schematic diagram of the structure cooperating with the thoracoscope aspirator in Figure 6 is the schematic diagram of the usage state of the first embodiment of the present invention Figure 1 ; Figure 7 is the schematic diagram of the usage state of the first embodiment of the present invention Figure 2 ; Figure 8 is the front view sectional structure schematic diagram of the second embodiment of the present invention; Figure 9 is the schematic diagram of the structure of the base and the breathable push-block module in the second embodiment of the present invention; Figure 10 is Figure 8 The schematic diagram of the structure cooperating with the thoracoscope aspirator in Figure 11 is the schematic diagram of the usage state of the second embodiment of the present invention. Detailed implementation manners

[0016] The present invention will be further described in detail below with reference to the drawings and specific implementation manners.

[0017] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "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, and is only for the convenience of describing the present invention, 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, and therefore should not be construed as a limitation to the present invention.

[0018] Embodiment 1: As shown in Figures 1 to 7As shown in the figure, a negative pressure suction and pushing device for thoracoscopic surgery according to the present invention can not only suck intraoperative fluids (such as blood, exudate, smoke, etc.), but also push the lung tissue to optimize the surgical field of view. Specifically, it includes a cuboid-shaped base 1 and a suction tube 3 for connecting with a hand-held thoracoscopic aspirator 2. The front end surface of the base 1 is provided with a breathable pushing module 5 for contacting the lung tissue 4. The pushing module is breathable to facilitate the suction of intraoperative fluids. A hinge hole part 6 is provided in the middle of the base 1 and runs through in the front-back direction; the rear end of the suction tube 3 is used to connect with the thoracoscopic aspirator 2, and the inner cavity of the suction tube 3 is used to communicate with the thoracoscopic aspirator 2 to form a main suction channel 18. The front end of the suction tube 3 extends into the hinge hole part 6 and is hinged to the hinge hole part 6, so that the suction tube can be rotated by the thoracoscopic aspirator; a main suction hole 7 is opened on the front surface of the front end of the suction tube 3, and the main suction hole 7 is communicated with the inner cavity of the suction tube 3 and the hinge hole part 6, and the intraoperative fluids are sucked through the main suction hole. During use, the hand-held thoracoscopic aspirator is connected to the rear end of the suction tube, the breathable pushing module on the base is placed in the area where fluid needs to be sucked, the thoracoscopic aspirator is connected to an external negative pressure suction system, and the intraoperative fluids enter the suction hole through the main suction hole and are then sucked away by the thoracoscopic aspirator. By using the breathable pushing module to push the lung tissue, the pushing contact area is large and the stability is good, so that both intraoperative fluids can be sucked and the lung tissue can be pushed to optimize the surgical field of view. By designing the suction tube into a structure hinged to the base, the hand-held thoracoscopic aspirator can rotate after connection, thereby adjusting the angle.

[0019] In this embodiment, the inner peripheral side surface of the hinge hole part 6 is an arc surface; the front end of the suction tube 3 is provided with a hollow hinge ball head 8, the inner cavity of the hinge ball head 8 is communicated with the inner cavity of the suction tube 3, and the hinge ball head 8 and the hinge hole part 6 form a spherical hinge fit; the main suction hole 7 is opened on the spherical surface of the hinge ball head 8, and the main suction hole 7 is communicated with the inner cavity of the hinge ball head 8. The suction tube forms a spherical hinge fit with the hinge hole part through the hinge ball head, which can effectively increase the rotation range and improve the use flexibility.

[0020] In this embodiment, there are multiple main suction holes 7, and the multiple main suction holes 7 are evenly distributed on the front spherical surface of the hinge ball head 8.

[0021] In this embodiment, the front and rear ends of the articulated ball head 8 respectively protrude from the articulated hole portion 6; a circular arc-shaped accommodating groove 9 for accommodating one end of the articulated ball head 8 protruding from the articulated hole portion 6 is provided in the middle of the rear end of the breathable push-block module 5, and the main suction hole 7 at the front end of the articulated ball head 8 is located in the arc-shaped accommodating groove 9. By distributing a plurality of main suction holes on the spherical surface of the articulated ball head, when the articulated ball head rotates, there can be a main suction hole located in the arc-shaped accommodating groove, which is convenient for better suction. It should be noted that since the articulated ball head is located in the articulated hole portion, there will be some gaps between the spherical surface of the articulated ball head and the inner side wall of the articulated hole portion, and these gaps can facilitate the suction of intraoperative liquid.

[0022] In this embodiment, an annular suction cavity 10 is provided on the outer peripheral side of the suction tube 3, and the annular suction cavity 10 is not communicated with the inner cavity of the suction tube 3, that is: the annular suction cavity is independent of the inner cavity of the suction tube. A suction tube 11 is connected to the rear end of the annular suction cavity 10, and the annular suction cavity 10 and the suction tube 11 form a secondary suction channel 12, and this secondary suction channel is independent of the main suction channel, so as to form two independent negative pressure suction channels to form a dual-channel negative pressure suction; a plurality of secondary suction holes 13 are provided on the outer peripheral side portion of the annular suction cavity 10, and the plurality of secondary suction holes 13 are communicated with the inside of the annular suction cavity 10, and suction is performed through the secondary suction holes.

[0023] In this embodiment, the main suction channel is connected to the negative pressure suction system through a thoracoscope aspirator to achieve negative pressure suction of liquid (including blood, exudate, and smoke). The secondary suction channel is connected to the negative pressure suction system through a pipeline, and is used to assist in clearing residual liquid with a lower suction force to prevent tissue damage when the main negative pressure (i.e., the main suction channel) is not enabled. The main suction channel and the secondary suction channel are each controlled by a switch to turn on or off the negative pressure suction, forming two independent negative pressure suction channels. The two channels are independently controlled, allowing the operator to flexibly switch or use the two suction functions simultaneously at different stages.

[0024] In this embodiment, the breathable push-block module 5 is formed by stacking and pressing a plurality of gauzes 14 in the front-rear direction to form an integral body. It is formed by pressing a plurality of gauzes, maintaining breathability and having a certain structural strength as a whole to prevent excessive deformation during pushing, which is convenient for better pushing of tissues. Further, a hydrophobic or anti-adhesive coating can be applied to the surface of the breathable push-block module to reduce liquid adhesion and further improve the pushing stability.

[0025] In this embodiment, an external thread connecting portion 15 is provided at the rear end of the suction tube 3, and the external thread connecting portion 15 is used for screwing connection with the internal thread hole at the front end of the thoracoscope aspirator 2. It should be noted that the internal thread at the front end of the thoracoscope aspirator is inherent in the existing thoracoscope aspirator itself. In the traditional method, different types of suction heads are connected through this internal thread hole. In the present invention, the connection with the thoracoscope aspirator is directly achieved through this external thread connecting portion, which is convenient for installation and disassembly without the need to modify the structure of the thoracoscope aspirator.

[0026] In this embodiment, the base 1 is made of a medical-grade polymer material or a silicone material.

[0027] In this embodiment, a rotation locking member is provided in the hinge hole portion 6, and the rotation locking member is conducive to locking the hinge ball head 8 after it rotates with the suction tube 3. By locking the rotation of the hinge ball head, when the thoracoscope aspirator drives the suction tube to rotate to a suitable angle, it is locked by this rotation locking member. At this time, it can be ensured that the breathable push-block module is not easily deflected by an external force during pushing, improving the stability of pushing. Since the aspirator has a free rotation function, the operator can adjust the angle of the aspirator. After reaching the ideal pushing angle, it is locked by the rotation locking member, thereby maintaining a stable pushing state.

[0028] An implementation scheme of the rotation locking member: There is a gap between the inner side surface of the hinge hole portion 6 and the spherical surface of the hinge ball head 8; the rotation locking member is an annular damping pad 16 fixedly provided on the inner side surface at the rear end of the hinge hole portion 6, and the inner peripheral side surface of the damping pad 16 is an arc surface and contacts the spherical surface of the hinge ball head 8. The damping pad forms a frictional damping on the hinge ball head, so that the hinge ball head can be held after rotating with the suction tube, thereby realizing rotation locking and not easily changing the angle due to the operating force or the gravity of the lung. It should be noted that due to the frictional resistance generated by the damping pad, the rotation of the hinge ball head will be relatively difficult at this time, and it will be relatively more laborious to rotate the thoracoscope aspirator at this time.

[0029] Embodiment 2: As Figures 8 - 11As shown in the figure, the difference between this embodiment and the first embodiment lies in the different structures of the rotating locking member. Specifically, the rotating locking member adopts another implementation scheme: the articulated ball head 8 is made of a metal material; a circular installation groove 17 is provided on the inner side surface at the rear end of the articulated hole portion 8, and the rotating locking member is a suction cup type electromagnet 19 arranged in the installation groove 17. The suction surface of the suction cup type electromagnet 19 is an arc surface and is in contact with the spherical surface of the articulated ball head 8. After the suction cup type electromagnet 19 is energized, it adsorbs the articulated ball head 8 through the suction surface to achieve rotational locking. The suction cup type electromagnet is connected to an external control power supply through a circuit, and a control switch for controlling the energization and de - energization of the suction cup type electromagnet is provided on the circuit. During operation, when the thoracoscope aspirator rotates, the articulated ball head rotates within the articulated hole portion; after rotating to the required angle, the suction cup type electromagnet is energized, and the suction surface of the suction cup type electromagnet adsorbs the articulated ball head through magnetic force. At this time, the articulated ball head cannot rotate anymore, achieving rotational locking and not easily generating angular changes due to the operating force or the gravity of the lung. When continued rotation is required, the suction cup type electromagnet is controlled to be de - energized. At this time, the articulated ball head loses magnetic adsorption, and the thoracoscope aspirator can be rotated again. The whole process is convenient to control.

[0030] Specific implementation process: (1)Connect the thoracoscope aspirator to the suction tube, place the breathable push - block module of the base in the area where liquid needs to be aspirated, activate the negative pressure suction system through the manual control switch, so that the liquid first enters the suction tube from the base, and then is sucked away through the thoracoscope aspirator to ensure a clear field of view; (2)When the lung tissue needs to be pushed, the operator first pushes the breathable push - block module to the target position, adjusts the angle of the thoracoscope aspirator by rotation to make it reach the best pushing state. At this time, the suction of the main suction channel can be turned off to prevent tissue damage; (3)Open the secondary suction channel for suction according to the situation to assist in clearing residual liquid with a lower negative pressure, while ensuring the pushing effect, clearing local residual liquid or smoke that may appear during the operation process.

[0031] The advantages of the present invention are as follows: It can achieve efficient negative pressure liquid aspiration, smoke removal, and lung tissue pushing, and adopts a dual - suction channel independent control design, which not only ensures a clear surgical field of view but also ensures a fixed angle during pushing, avoiding angular changes caused by the gravity of the lung, and has significant clinical application value. Specifically: (1)Efficient negative pressure suction: By setting a breathable push - block module and a rotatable suction tube on the base, the liquid can be evenly aspirated and quickly discharged, while avoiding directly adsorbing tissue due to excessive negative pressure; (2)Stable pushing block: A pushing block module integrated with multiple pieces of medical gauze is designed on the base. It is not only breathable but also has a certain hardness. By increasing the contact area and rotational locking, it can firmly resist the lung tissue during pushing, preventing easy angle sliding caused by lung gravity, thus maintaining the stability of the surgical field. (3)Dual suction system: By setting up independent main suction channels and secondary suction channels, the main suction channel cooperates with the suction device to achieve negative pressure suction of liquids (including blood, exudate, and smoke); the secondary suction channel uses lower suction to assist in clearing residual liquids and prevent tissue damage.

[0032] In this embodiment, some surgical requirements are to achieve both efficient negative pressure suction and provide sufficient pushing force, and at the same time, the suction device is required to have the function of freely rotating and fixing. The present invention is innovated based on this requirement.

[0033] If the present invention discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (such as using bolts or screws), or it can also be understood as: a non-detachable fixed connection (such as riveting, welding). Of course, the mutually fixed connection can also be replaced by an integral structure (such as manufactured by integral casting process) (except when it is obviously impossible to adopt the integral forming process).

[0034] In addition, unless otherwise stated, the terms used to represent positional relationships or shapes in any of the above technical solutions disclosed by the present invention include states or shapes that are approximate, similar, or close to them.

[0035] Any component provided by the present invention can either be assembled from multiple separate components or be a single component manufactured by an integral forming process.

[0036] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the specific implementation manners of the present invention or make equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A negative pressure suction and blocking device for thoracoscopic surgery, characterized in that: It includes a base and a suction tube, the front end surface of the base is provided with a breathable push-stop module for contacting lung tissue, the middle part of the base is provided with a hinge hole portion that passes through in the front and rear directions; the rear end of the suction tube is used to be connected to a thoracoscopic suction device, the inner cavity of the suction tube is used to communicate with the thoracoscopic suction device to form a main suction channel, the front end of the suction tube extends into the hinge hole portion and is hinged with the hinge hole portion, the front end surface of the suction tube is provided with a main suction hole, and the main suction hole is connected with the inner cavity of the suction tube and the hinge hole portion.

2. A negative pressure suction and blocking device for thoracoscopic surgery according to claim 1, characterized in that: The inner side surface of the articulated hole is an arc surface; the front end of the suction tube is provided with an articulated ball head with a hollow interior, the inner cavity of the articulated ball head is connected with the inner cavity of the suction tube, and the articulated ball head and the articulated hole form a spherical articulated fit; the main suction hole is opened on the spherical surface of the articulated ball head, and the main suction hole is connected with the inner cavity of the articulated ball head.

3. A negative pressure suction and blocking device for thoracoscopic surgery according to claim 2, characterized in that: The front and rear ends of the articulated ball head extend out of the articulated hole respectively; the middle part of the rear end of the breathable push-block module is provided with an arc-shaped receiving groove for accommodating one end of the articulated ball head extending out of the articulated hole.

4. A negative pressure suction and blocking device for thoracoscopic surgery according to claim 2 or 3, characterized in that: There are multiple main suction holes, and the multiple main suction holes are evenly distributed on the front end spherical surface of the articulated ball head.

5. The negative pressure suction and blocking device for thoracoscopic surgery according to claim 1, characterized in that: An annular suction cavity is provided on the outer peripheral side of the suction tube, the annular suction cavity is not connected to the inner cavity of the suction tube, the rear end of the annular suction cavity is connected to the suction tube, and the annular suction cavity and the suction tube form a secondary suction channel; A plurality of auxiliary suction holes are provided on the outer peripheral side of the annular suction chamber, and the plurality of auxiliary suction holes are communicated with the interior of the annular suction chamber.

6. The negative pressure suction and blocking device for thoracoscopic surgery according to claim 1, characterized in that: The air-permeable push-block module is formed into a whole by stacking and pressing a plurality of gauze pieces in the front and rear directions.

7. The negative pressure suction and blocking device for thoracoscopic surgery according to claim 1, characterized in that: The rear end of the suction tube is provided with an external thread connection portion, and the external thread connection portion is used for being threadedly connected with the internal thread hole at the front end of the thoracoscopic suction device.

8. The negative pressure suction and blocking device for thoracoscopic surgery according to claim 2, characterized in that: A rotation locking piece is arranged in the hinge hole portion to facilitate locking the hinge ball head after it rotates with the suction tube.

9. A negative pressure suction and blocking device for thoracoscopic surgery according to claim 8, characterized in that: There is a gap between the inner side surface of the hinge hole and the spherical surface of the hinge ball head; the rotation locking piece is a ring-shaped damping pad fixedly arranged on the inner side surface of the rear end of the hinge hole, and the inner circumferential side surface of the damping pad is an arc surface and contacts the spherical surface of the hinge ball head.

10. The negative pressure suction and blocking device for thoracoscopic surgery according to claim 8, characterized in that: The articulated ball head is made of metal material; a circular mounting groove is arranged on the inner side surface of the rear end of the articulated hole; the rotation locking member is a suction cup type electromagnet arranged in the mounting groove; the suction surface of the suction cup type electromagnet is an arc surface and contacts with the spherical surface of the articulated ball head; when the suction cup type electromagnet is energized, the articulated ball head is adsorbed by the suction surface to achieve rotation locking.

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