Sealing structure, sealing method and puncture device

Abstract

The present application relates to a sealing structure, a sealing method and a puncture device. The sealing structure provided by the present application includes a main body; a plurality of pivot shafts, the plurality of pivot shafts being circumferentially distributed along one side of the main body; and a plurality of sealing sheets, each of which includes a first end and a second end relative to each other; the first end of each sealing sheet is pivotally connected to a corresponding pivot shaft; wherein the second end of each sealing sheet is deformed and / or changes position to form an installation channel; when the instrument enters the installation channel, the second end of each sealing sheet is tightly fitted to the outer wall of the instrument, so that the sealing structure and the instrument are airtightly connected. The sealing structure provided by the present application solves the problem of needing to re-match sealing sleeves of different sizes for instruments with different outer diameters, and is easy to use and economical.

Description

Technical Field

[0001] The present application relates to medical devices, and in particular to a sealing structure, a sealing method and a puncture device. Background Art

[0002] Trocars are widely used in clinical surgical procedures, particularly in minimally invasive laparoscopic surgery. Trocars (also known as trocars or trocars) are surgical consumables that pierce abdominal tissue, creating a cannula for other medical devices to safely enter the body cavity. The appropriate medical device is then inserted into the cannula for surgical procedures.

[0003] Traditional stamps are only compatible with instruments with an outer diameter of 8mm. For instruments with other outer diameters (such as 5mm), a disposable sealing ring suitable for the corresponding instrument is required. For example, when replacing a 5mm instrument with a 5mm outer diameter, only an additional sealing ring suitable for the 5mm outer diameter instrument is required, which is then discarded after use.

[0004] Therefore, when a new outer diameter instrument is developed, the original sealing ring cannot be used unless a sealing ring that matches the outer diameter is developed simultaneously. Moreover, if a surgery is occasionally performed and the patient forgets to bring an extra sealing ring of the appropriate size, the surgery cannot be carried out smoothly, which is inconvenient and uneconomical. Summary of the Invention

[0005] Based on this, it is necessary to provide a sealing structure, a sealing method and a puncture device to address the deficiencies in the above-mentioned prior art.

[0006] According to some embodiments, the present application provides a sealing structure, comprising:

[0007] main body;

[0008] a plurality of pivot axes, the plurality of pivot axes being distributed circumferentially along one side of the main body; and

[0009] A plurality of sealing plates, each of the sealing plates comprising a first end and a second end opposite to each other; the first end of each sealing plate being pivotally connected to a corresponding one of the pivot shafts;

[0010] In which, the second end of each sealing sheet forms an installation channel through deformation and / or position change; when the instrument enters the installation channel, the second end of each sealing sheet fits tightly against the outer wall of the instrument, so that the sealing structure and the instrument are airtightly connected.

[0011] In the above-mentioned sealing structure, when an instrument needs to be installed, the second end of the sealing sheet can form an installation channel by deformation and / or position change, and fit tightly with the outer wall of the instrument. The installation channel formed in this way can accommodate instruments with different outer diameters, solving the problem of needing to re-match sealing sleeves of different sizes for instruments with different outer diameters. It is easy to use and economical.

[0012] In one embodiment, the sealing structure further comprises a control mechanism; the control mechanism is configured to:

[0013] The control mechanism realizes an airtight connection between the sealing structure and the device during the switching process between the first state and the second state.

[0014] The above sealing structure can enable instruments of different outer diameters to enter the installation channel by switching the control mechanism between the first state and the second state when the instrument needs to be installed, thereby solving the problem of needing to re-match sealing sleeves of different sizes for instruments of different outer diameters. It is easy to use and economical.

[0015] In one embodiment, the pivot shaft comprises an elastic member;

[0016] The control mechanism is configured to:

[0017] When the control mechanism switches from the first state to the second state, the second end of the sealing sheet is controlled to rotate out in the centrifugal direction to overcome the elastic force of the elastic member, and the installation channel expands in the centrifugal direction, so that the instrument enters the installation channel;

[0018] When the control mechanism is reset from the second state to the first state, the second end of the sealing sheet is screwed in under the elastic force of the elastic member, so that the second end of each sealing sheet is tightly fitted to the outer wall of the device.

[0019] In one embodiment, the main body includes a driving portion;

[0020] The sealing sheet is connected to the driving part through a connecting piece.

[0021] In one embodiment, the control mechanism is further configured to:

[0022] When the control mechanism switches from the first state to the second state, the driving part is controlled to drive the connecting member so that the second end of the sealing sheet overcomes the elastic force and rotates out in the centrifugal direction.

[0023] In one embodiment, the pivot shaft comprises a torsion spring;

[0024] The main body further includes a fixing portion provided with a sleeve hole; the fixing portion is provided with a first positioning portion corresponding one-to-one with the torsion spring; the first positioning portion includes a main positioning portion and an auxiliary positioning portion located outside the main positioning portion;

[0025] The surface of the sealing sheet close to the fixing portion is provided with a second positioning portion corresponding one-to-one to the torsion spring;

[0026] The torsion spring and the sealing sheet are sequentially sleeved on the main positioning portion, and the two second ends of the torsion spring are respectively engaged with the auxiliary positioning portion and the second positioning portion;

[0027] The installation channel is formed in the sleeve hole.

[0028] In one embodiment, the connecting member includes a connecting rod;

[0029] The driving portion is provided with a first connecting portion on a surface close to the sealing sheet;

[0030] The surface of the sealing sheet close to the driving part is provided with a second connecting part;

[0031] Connecting holes are respectively provided at both ends of the connecting rod, and the two connecting holes are fixedly connected to the first connecting part and the second connecting part respectively.

[0032] In one embodiment, when the second end of the sealing sheet is tightly fitted to the outer wall of the device, the second ends of a plurality of sealing sheets are stacked in a staggered manner.

[0033] In one embodiment, the sealing sheet includes fan-shaped blades;

[0034] The second end of the fan-shaped blade is bent toward the installation channel.

[0035] In one embodiment, the control mechanism includes a button and a transmission member; the button is in the first state in a natural state, and is in the second state in a working state;

[0036] When the control mechanism switches from the first state to the second state, the button drives the transmission member to control the second end of the sealing plate to rotate out in the centrifugal direction to overcome the elastic force of the elastic member;

[0037] When the control mechanism is reset from the second state to the first state, the second end of the sealing sheet is screwed in under the elastic force of the elastic member.

[0038] According to some embodiments, the present application also provides a sealing method, which is applied to the sealing structure provided in any of the aforementioned embodiments; the sealing method includes:

[0039] Provide equipment;

[0040] The device is placed in the installation channel; when the device enters the installation channel, the second end of each sealing sheet is tightly fitted to the outer wall of the device, and the sealing structure is airtightly connected to the device.

[0041] The above sealing method is applied to the sealing structure provided by any of the aforementioned embodiments. Therefore, the technical effects that can be achieved by the aforementioned sealing structure can also be achieved by this sealing method, which will not be described in detail here.

[0042] According to some embodiments, the present application also provides a puncture device, characterized in that the puncture device includes a sealing structure as provided in any of the above embodiments, and an instrument; wherein

[0043] The sealing structure is used for sealing and fixing the instrument.

[0044] The above-mentioned puncture device includes the sealing structure provided by the above-mentioned embodiment. Therefore, the technical effects that can be achieved by the above-mentioned sealing structure can also be achieved by the puncture device, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0046] Figure 1 It is a structural schematic diagram of a laparoscopic surgery system;

[0047] Figure 2 This is an application scenario diagram of a laparoscopic surgery system;

[0048] Figure 3 It is a structural schematic diagram of a trocar;

[0049] Figures 4 to 7 This is a schematic structural diagram of a sealing structure in some embodiments of the present application;

[0050] Figure 8 Figure (a) and Figure 8 Figure (b) is a schematic structural diagram of the sealing structure when the control mechanism is in the first state in one embodiment of the present application;

[0051] Figure 9 This is a structural schematic diagram of the sealing structure when the control mechanism switches from the first state to the second state in one embodiment of the present application;

[0052] Figure 10 Figure (a) and Figure 10 Figure (b) is a schematic structural diagram of the sealing structure when the control mechanism is in the second state in one embodiment of the present application;

[0053] Figure 11 A schematic diagram of the process of replacing the auxiliary sealing structure of the instrument in the traditional sealing method using a disposable sealing sleeve;

[0054] Figure 12 A flowchart of a sealing method provided in one embodiment of the present application;

[0055] Figure 13 A schematic diagram of a process for implementing the instrument plugging and unplugging function using a sealing method provided in one embodiment of the present application;

[0056] Figure 14 A schematic diagram of the process of replacing an instrument in a sealing method provided in one embodiment of the present application;

[0057] Figure 15 An interactive prompt diagram of a sealing method provided in one embodiment of the present application;

[0058] Figure 16 This is a diagram of an application scenario of the puncture device provided in one embodiment of the present application;

[0059] Figure 17 This is an interactive prompt diagram of the puncture device provided in one embodiment of the present application performing the punching work before surgery.

[0060] Description of reference numerals:

[0061] 10. Instrument table; 20. Doctor's control console; 30. Energy instrument placement table; 40. Operating table; 50. Image platform; 60. Patient operating platform; 70. Doctor / nurse; 1. Main body; 11. Pivot axis; 12. Fixing part; 121. Sleeve hole; 122. First positioning part; 1221. Main positioning part; 1222. Auxiliary positioning part; 123. Second positioning part; 13. Driving part; 131. First connecting part; 14. Connecting part; 2. Control mechanism; 21. Button; 22. Transmitting part; 3. Sealing piece; 31. First end; 32. Second end; 321. Second connecting part; 4. Sealing structure; 5. Trocar sleeve; 6. Air blocking valve. DETAILED DESCRIPTION

[0062] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0063] Puncture cards have been widely used in medical clinical surgery, especially in the field of minimally invasive surgery, namely laparoscopic surgery. Figure 1 The laparoscopic surgery system primarily consists of an instrument table 10, a surgeon's console 20, an energy instrument placement table 30, an operating table 40, an imaging platform 50, a patient operating table 60, and a surgeon / nurse 70. The patient operating table 60 can be used to mount robotic arms (including adjustment arms and tool arms) and surgical instruments for master-slave operation, enabling preoperative movement of the entire system and adjustment of surgical positioning. The patient operating table primarily comprises tool arms, surgical instruments, adjustment arms, and a surgical trolley.

[0064] See also Figure 2 During laparoscopic surgery, four trocars are inserted into the patient's abdominal cavity during the preoperative preparation stage. The trocars provide channels for various instruments to enter the patient's body. However, since the inner diameter of the trocar is fixed, it cannot match instruments with various outer diameters.

[0065] See also Figure 3 During actual surgery, different surgical instruments and their outer diameters vary depending on the procedure being performed. Trocars have a fixed aperture, so a single trocar cannot accommodate instruments of varying outer diameters. Consequently, each surgery requires the preparation of sealing rings that can accommodate instruments of varying outer diameters. If a surgeon forgets to prepare these, or if the disposable sealing rings are inappropriately sized, the surgery cannot proceed. Furthermore, when instruments with new optimal outer diameters are developed, they cannot be adapted to the trocar.

[0066] Based on the above-mentioned deficiencies in the prior art, the present application provides a sealing structure according to some embodiments.

[0067] See also Figures 4 to 7 In one embodiment, the sealing structure 4 may include a main body 1 , a plurality of pivot shafts 11 , and a plurality of sealing sheets 3 .

[0068] Multiple pivot shafts 11 are distributed circumferentially along one side of the main body 1. Each sealing plate 3 includes a first end 31 and a second end 32. The first end 31 of each sealing plate 3 is pivotally connected to a corresponding pivot shaft 11. The second end 32 of each sealing plate 3 forms a mounting channel through deformation and / or position change.

[0069] When the device enters the installation channel, the second end 32 of each sealing sheet 3 is tightly fitted to the outer wall of the device, so that the sealing structure 4 and the device are airtightly connected.

[0070] In the above-mentioned sealing structure, when an instrument needs to be installed, the second end 32 of the sealing sheet 3 can form an installation channel by deformation and / or position change, and fit tightly with the outer wall of the instrument. The installation channel formed in this way can accommodate instruments with different outer diameters, solving the problem of needing to re-match sealing sleeves of different sizes for instruments with different outer diameters. It is easy to use and economical.

[0071] That is, when the device needs to be installed, the second end 32 of the sealing sheet 3 can form the installation channel only by deformation, or only by position change, or by a combination of deformation and position change.

[0072] As an example, the second end 32 of the sealing sheet 3 can be deformed and / or positionally changed to form a mounting channel and fit closely to the outer wall of the device in the following manner, for example:

[0073] The sealing sheet 3 is elastic. During the instrument installation process, the instrument is placed between the multiple second ends 32 of the sealing sheet 3. Because the sealing sheet 3 is elastic and its material is deformable, it can deform to form a cone shape. The multiple second ends 32 of the sealing sheet 3 are pressed against the outer wall of the instrument, achieving an airtight connection between the sealing structure and the instrument.

[0074] In one embodiment, the sealing structure may further include a control mechanism 2 .

[0075] The control mechanism 2 includes a first state and a second state. Based on this, the control mechanism 2 can be configured to achieve an airtight connection between the sealing structure and the device during the switching process between the first state and the second state.

[0076] The above-mentioned sealing structure can enable instruments of different outer diameters to enter the installation channel by switching the first state and the second state of the control mechanism 2 when the instrument needs to be installed, thereby solving the problem of needing to re-match sealing sleeves of different sizes for instruments of different outer diameters. It is easy to use and economical.

[0077] It should be noted that the sealing sheet 3 in the present application can be an elastic sealing sheet. When the second end 32 of the sealing sheet 3 is tightly attached to the outer wall of the device, the installation channel formed can clamp the device. Moreover, since the sealing sheet 3 is elastic and its material is deformable, it can clamp the device and conform to the outer diameter of the device, thereby naturally forming an adaptive sealing space.

[0078] In one embodiment, the pivot shaft 11 may include an elastic member.

[0079] On this basis, the control mechanism 2 can realize the airtight connection between the sealing structure and the device during the switching process between the first state and the second state by the following means, for example:

[0080] When the control mechanism 2 switches from the first state to the second state, the second end 32 of the control sealing sheet 3 overcomes the elastic force of the elastic member and rotates out in the centrifugal direction, and the installation channel expands in the centrifugal direction to allow the instrument to enter the installation channel; when the control mechanism 2 is reset to the first state from the second state, the second end 32 of the sealing sheet 3 is rotated in under the elastic force of the elastic member, so that the second end 32 of each sealing sheet 3 is tightly fitted to the outer wall of the instrument.

[0081] In the sealing structure of the above embodiment, when an instrument needs to be installed, the installation channel surrounded by the second end 32 of the sealing sheet 3 can expand in the centrifugal direction, so that instruments with different outer diameters can be installed inside; after the control mechanism 2 is reset, the second end 32 of each sealing sheet 3 is tightly fitted to the outer wall of the instrument, and the second ends 32 of multiple sealing sheets 3 work together to achieve good sealing for instruments with different outer diameters, solving the problem of needing to re-match sealing sleeves of different sizes for instruments with different outer diameters. It is easy to use and economical.

[0082] like Figures 8 to 10 As shown, Figure 8 Figure (a) and Figure 8 Figure (b) shows a schematic structural diagram of the sealing structure when the control mechanism 2 is in the first state in the embodiment of the present application; Figure 9 It shows a structural schematic diagram of the sealing structure when the control mechanism 2 switches from the first state to the second state in the embodiment of the present application; Figure 10 Figure (a) and Figure 10 Figure (b) shows a schematic structural diagram of the sealing structure when the control mechanism 2 is in the second state in an embodiment of the present application.

[0083] As an example, when the control mechanism 2 switches from the first state to the second state, the expansion of the installation channel in the centrifugal direction can be achieved in the following ways, for example: the second end 32 of the control sealing plate 3 overcomes the elastic force of the pivot shaft 11 and is rotated out in the centrifugal direction, and the installation channel expands in the centrifugal direction to allow the instrument to enter the installation channel.

[0084] As an example, when the control mechanism 2 is reset from the second state to the first state, the second end 32 of the sealing sheet 3 can be tightly fitted to the outer wall of the device in the following manner, for example: the second end 32 of the sealing sheet 3 is screwed into the sleeve hole 121 under the action of elastic force to tightly fit the outer wall of the device entering the installation channel.

[0085] The sealing structure in the above embodiment has a sealing piece 3 whose second end 32 can be screwed in and out under the action of elastic force; when the sealing piece 3 overcomes the elastic force and is screwed out in the centrifugal direction, the installation channel surrounded by the second end 32 expands outward, so that instruments with different outer diameters can enter the installation channel; then, these sealing pieces 3 can be screwed in under the action of elastic force, fit tightly to the outer wall of the instrument, and clamp the instrument, thereby achieving good sealing for instruments with different outer diameters, solving the problem of needing to re-match sealing sleeves of different sizes for instruments with different outer diameters, reducing the cost of surgical consumables, and improving the compatibility of the sealing structure with instruments with different outer diameters.

[0086] The sealing structure in the above embodiment controls the synchronous retraction and extension of multiple sealing sheets 3 through the control mechanism 2, which can reduce the complexity of the surgeon's operation and improve the surgeon's working comfort; moreover, the sealing structure in the above embodiment does not require the surgeon to select disposable sealing rings of different outer diameters when replacing instruments with different outer diameters, thereby reducing work repeatability and risks and improving the surgeon's work efficiency.

[0087] In one embodiment, when the second end 32 of the sealing sheet 3 is tightly fitted to the outer wall of the device, the second ends 32 of the plurality of sealing sheets 3 are stacked in a staggered manner.

[0088] The sealing structure in the above embodiment realizes sealing of instruments with different outer diameters by stacking and enclosing a plurality of sealing sheets 3 in a staggered manner.

[0089] by Figure 6 For example, in Figure 6 The multiple sealing sheets shown include sealing sheet 3a and sealing sheet 3b. Figure 6 As can be seen from the figure, the second end 32 of the sealing piece 3b should be located below the second end 32 of the sealing piece 3a when screwed in.

[0090] Please continue reading Figures 4 to 7 In one embodiment, the sealing sheet 3 includes fan-shaped blades.

[0091] In the above embodiment, the second end 32 of the fan-shaped blade is bent toward the formed mounting channel.

[0092] This application does not impose any specific restrictions on the number of sealing sheets 3. It is understood that by stacking and enclosing as many sealing sheets 3 as possible, a mounting channel approximately in the shape of a regular polygon can be obtained, and the mounting channel will become infinitely closer to a circle as the number of sealing sheets 3 increases. The fact that the mounting channel approximately in the shape of a regular polygon becomes infinitely closer to a circle as the number of fan-shaped blades increases can be demonstrated based on the following steps:

[0093] The circumference of the circle L 圆 =2πR; the area enclosed is S 圆 =πR 2 .

[0094] Perimeter L of the inscribed regular N-gon 内切正N边形 =2nsin(180° / n); the area enclosed by it is S 内切正N边形 =nsin(180° / n)cos(180° / n).

[0095] Area S of the circumscribed regular N-gon 外切正N边形 =nsin(180° / n) / cos(180° / n).

[0096] The perimeter of an inscribed regular N-gon is limited to 2π, then Lim nsin(180° / n)=π;

[0097] When n approaches +∞, cos(180° / n) approaches 1.

[0098] Therefore, LimS 内切正N边形 =LimS 外切正N边形 =π; and because S 内切正N边形 圆 外切正N边形 ; According to the squeeze criterion, S circle = π.

[0099] It can be seen that the installation channel, which is approximately a regular polygon, becomes infinitely close to a circle as the number of fan-shaped blades increases.

[0100] Please continue reading Figures 4 to 7 In one embodiment, the main body 1 may include a driving portion 13 .

[0101] In the above embodiment, the sealing sheet 3 can be connected to the driving portion 13 via the connecting member 14 .

[0102] As an example, when the control mechanism 2 switches from the first state to the second state, the driving part 13 can be controlled to drive the connecting member 14 so that the second end 32 of the sealing plate 3 overcomes the elastic force and rotates out in the centrifugal direction.

[0103] In the sealing structure of the above embodiment, the driving part 13 is driven to rotate by the control mechanism 2. The driving part 13 is connected to the sealing plate 3 via the connecting member 14. Under the action of the connecting member 14, the sealing plate 3 overcomes the elastic force and rotates out in the centrifugal direction, causing the installation channel surrounded by the second end 32 to expand outward.

[0104] The present application does not specifically limit the form of the pivot shaft 11. As an example, the pivot shaft 11 may include but is not limited to a torsion spring.

[0105] Please continue reading Figures 5 and 6 ​​In one embodiment of the present application, the pivot shaft 11 is a torsion spring. At this time, the main body 1 may further include a fixing portion 12 provided with a sleeve hole 121. The fixing portion 12 may be provided with a first positioning portion 122 corresponding one-to-one to the torsion spring. The first positioning portion 122 includes a main positioning portion 1221 and an auxiliary positioning portion 1222 located outside the main positioning portion 1221. The surface of the sealing plate 3 close to the fixing portion 12 may be provided with a second positioning portion 123 corresponding one-to-one to the torsion spring. The torsion spring and the sealing plate 3 are sequentially sleeved on the main positioning portion 1221, and the two second ends of the torsion spring are respectively engaged with the auxiliary positioning portion 1222 and the second positioning portion 123.

[0106] Based on the above embodiment, the installation channel should be formed in the sleeve hole 121 .

[0107] The present application does not specifically limit the form of the connecting member 14. As an example, the connecting member 14 may include but is not limited to a connecting rod.

[0108] Please continue reading Figures 5 and 6 In one embodiment of the present application, the connecting member 14 is a connecting rod. A first connecting portion 131 is provided on the surface of the driving portion 13 near the sealing plate 3, and a second connecting portion 321 is provided on the surface of the sealing plate 3 near the driving portion 13. Connecting holes are provided at each end of the connecting rod, and the two connecting holes are fixedly connected to the first connecting portion 131 and the second connecting portion 321, respectively.

[0109] Please continue reading Figures 4 and 5 ,as well as Figures 8 to 10 In one embodiment, the control mechanism 2 may include a button 21 and a transmission member 22.

[0110] For the convenience of description, in this application, the button 21 is defined as being in a natural state as a first state, and the button 21 is defined as being in a working state as a second state.

[0111] When the control mechanism 2 switches from the first state to the second state, the button 21 drives the transmission member 22 to control the second end 32 of the sealing plate 3 to rotate out in the centrifugal direction to overcome the elastic force of the elastic member; when the control mechanism 2 is reset to the first state from the second state, the second end 32 of the sealing plate 3 is rotated in under the action of the elastic force of the elastic member.

[0112] As an example, the button 21 can be connected to the driving portion 13 via the transmission member 22. Since the driving portion 13 and the sealing plate 3 are connected via the connection member 14, pressing the button 21 causes the transmission member 22 to push the driving portion 13 to rotate, thereby driving the transmission member 22 to control the second end 32 of the sealing plate 3 to rotate out in the centrifugal direction against the elastic force.

[0113] When a new outer diameter instrument is developed or introduced with the traditional sealing method, the original sealing ring cannot be used unless a sealing ring that matches the outer diameter is developed simultaneously. And when a surgery is occasionally performed and the surgeon forgets to bring an extra sealing ring of the appropriate size, the surgery cannot be carried out smoothly. Figure 11 As shown, Figure 11 A schematic diagram shows the process of replacing the instrument's auxiliary sealing structure in a traditional sealing method using a disposable sealing sleeve. It can be seen that the traditional sealing method is not comfortable, practical, and economical to install. If a surgeon forgets to bring an extra sealing ring of the correct size, the operation cannot proceed smoothly, resulting in inconvenience.

[0114] The present application also provides a sealing method according to some embodiments. The sealing method provided in the present application can be applied to the sealing structure provided in any of the aforementioned embodiments.

[0115] See also Figure 12 In one embodiment, the sealing method may specifically include the following steps:

[0116] S1: Provide equipment.

[0117] S2: Place the device into the installation channel; when the device enters the installation channel, the second end 32 of each sealing sheet 3 is tightly fitted to the outer wall of the device, and the sealing structure 4 is airtightly connected to the device.

[0118] The above sealing method is applied to the sealing structure provided by any of the aforementioned embodiments. Therefore, the technical effects that can be achieved by the aforementioned sealing structure can also be achieved by this sealing method, which will not be described in detail here.

[0119] In one embodiment, step S2 may specifically include the following steps: switching the control mechanism 2 from the first state to the second state; at the same time, placing the instrument into the installation channel; when the instrument enters the installation channel, the control mechanism 2 is reset from the second state to the first state, so that the second end 32 of each sealing sheet 3 is tightly fitted to the outer wall of the instrument, thereby realizing an airtight connection between the sealing structure 4 and the instrument.

[0120] See also Figure 13 , Figure 13 The figure shows a flow chart of the sealing method provided in one embodiment of the present application to realize the instrument plugging and unplugging function. It should be noted that the carrier of the sealing structure provided in any of the above embodiments of the present application can be a trocar (also called Chuka for the convenience of description).

[0121] During instrument insertion:

[0122] Lock the forearm, fix the power box, hold the power box with one hand, and insert the instrument into the power box with the other hand and push the instrument forward; switch the control mechanism 2 from the first state to the second state, so that the second end 32 of the sealing plate 3 overcomes the elastic force of the pivot shaft 11 and rotates out of the sleeve hole 121 in the centrifugal direction, and the installation channel surrounded by the second end 32 expands outward, so that the instrument is inserted into the Chuka; insert the instrument, reset the control mechanism 2 from the second state to the first state, push the instrument until the tip of the instrument is placed in the Chuka hole, and until the instrument and the power box are fitted and a "click" sound is made, the installation is completed.

[0123] For example, the control mechanism 2 can be switched from the first state to the second state by pressing and holding the button 21 on the sealing structure (also known as the instrument cannula), thereby expanding the installation channel to its maximum diameter and allowing the instrument to be inserted into the chuka. The installation channel can be annular in shape. After the instrument is inserted, the button 21 can be released to reset the control mechanism 2 from the second state to the first state.

[0124] During instrument extraction:

[0125] The control mechanism 2 is switched from the first state to the second state so that the installation channel surrounded by the second end 32 expands outwards. With the other hand, press the gray buttons at both ends of the device and quickly pull out the device.

[0126] As an example, you can press and hold button 21 to expand the installation channel to its maximum diameter, and with your other hand, press the gray buttons at both ends of the instrument to quickly pull out the instrument.

[0127] The following combination Figure 14 , Figure 14 A schematic diagram of the process of replacing an instrument in a sealing method provided in an embodiment of the present application is shown.

[0128] Before removing the instrument, confirm with the surgeon. The surgeon's hand should be relaxed and straightened, with the jaws of the instrument open. The nurse should press button 21 with one hand to open the mounting channel (also called the sealing cap for ease of description) to its maximum aperture. With the other hand, press the gray release buttons at each end of the instrument to quickly remove it. At this point, the power box will automatically slide up to its apex.

[0129] Close the jaws of the replaced instrument, hold the power box with one hand, and use the other hand to place the instrument into the power box and push the instrument forward so that the tip of the instrument is placed in the Chuka hole. Press and hold button 21 to open the sealing cap to the maximum aperture, push the instrument, and release button 21 until the instrument and the power box fit together and "click" to complete the installation.

[0130] See also Figure 15 , Figure 15 An interactive prompt diagram of a sealing method provided in an embodiment of the present application is shown.

[0131] In this embodiment, the instrument can be picked up with the left hand and the button 21 can be pressed with the right thumb. At this time, the second end 32 of the sealing sheet 3 in the sealing structure is rotated out of the sleeve hole 121 along the centrifugal direction, and the instrument can be installed in the sleeve hole 121 with the left hand. The right thumb releases the button 21, and the sealing is completed.

[0132] According to some embodiments, the present application also provides a puncture device. The puncture device may include a sealing structure as provided in any of the aforementioned embodiments, and an instrument. The sealing structure may be used to seal and fix the instrument.

[0133] The above-mentioned puncture device includes the sealing structure provided by the above-mentioned embodiment. Therefore, the technical effects that can be achieved by the above-mentioned sealing structure can also be achieved by the puncture device, which will not be described in detail here.

[0134] See also Figure 16 , Figure 16 The following figure shows an application scenario of the puncture device provided in one embodiment of the present application. The puncture device is used in conjunction with an instrument to puncture the patient's body and provide a channel for surgical instruments. The puncture device may include a sealing structure 4, a puncture tube 5, an air injection valve, and an air blocking valve 6. When used in conjunction with a blunt-tipped instrument or a pointed instrument, the instrument is used to puncture the epidermis and internal septum of the human body, allowing the puncture tube 5 to enter the human body cavity; the puncture tube 5 is used to establish a channel for surgical instruments to enter the patient's cavity; the sealing structure 4 and the air blocking valve 6 are used to isolate the gas in the cavity.

[0135] It is understood that the present application does not specifically limit the type of instrument. As an example, the instrument may include but is not limited to a surgical needle.

[0136] At the same time, this application does not specifically limit the range of the outer diameter of the surgical needle. As an example, the outer diameter of the surgical needle can range from 5 mm to 8 mm; for example, the outer diameter of the surgical needle can be 5 mm, 6 mm, 7 mm, or 8 mm, etc.

[0137] See also Figure 17 , Figure 17 This diagram illustrates an interactive prompt for a trocar used in a preoperative puncture procedure according to one embodiment of the present application. Before surgery, a nurse can perform puncture procedures on the patient based on the type of surgery. It is understood that the trocar used for puncture can be a carrier for the sealing structure provided in this application.

[0138] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0139] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A sealing structure, characterized in that: The sealing structure comprises: The main body includes a driving portion; a plurality of pivot axes, the plurality of pivot axes being distributed circumferentially along one side of the main body; and A plurality of sealing sheets, each of the sealing sheets comprising a first end and a second end opposite to each other; the first end of each sealing sheet being pivotally connected to a corresponding one of the pivot shafts; the sealing sheet being connected to the driving portion via a connecting rod; a first connecting portion being provided on a surface of the driving portion close to the sealing sheet; a second connecting portion being provided on a surface of the sealing sheet close to the driving portion; connecting holes being provided at both ends of the connecting rod, and the two connecting holes being fixedly connected to the first connecting portion and the second connecting portion, respectively; The second end of each sealing sheet is deformed and / or changes position to form a mounting channel; when a device enters the mounting channel, the second end of each sealing sheet is tightly attached to the outer wall of the device, so that the sealing structure and the device are airtightly connected; The pivot shaft includes a torsion spring; The main body further includes a fixing portion provided with a sleeve hole; the fixing portion is provided with a first positioning portion corresponding one-to-one with the torsion spring; the first positioning portion includes a main positioning portion and an auxiliary positioning portion located outside the main positioning portion; The surface of the sealing sheet close to the fixing portion is provided with a second positioning portion corresponding one-to-one to the torsion spring; The torsion spring and the sealing sheet are sequentially sleeved on the main positioning portion, and the two second ends of the torsion spring are respectively engaged with the auxiliary positioning portion and the second positioning portion; The installation channel is formed in the sleeve hole.

2. The sealing structure according to claim 1, wherein: The sealing structure further includes a control mechanism; the control mechanism is configured to: The control mechanism realizes an airtight connection between the sealing structure and the device during the switching process between the first state and the second state.

3. The sealing structure according to claim 2, characterized in that: The pivot shaft includes an elastic member; The control mechanism is configured to: When the control mechanism switches from the first state to the second state, the second end of the sealing sheet is controlled to rotate out in the centrifugal direction to overcome the elastic force of the elastic member, and the installation channel expands in the centrifugal direction, so that the instrument enters the installation channel; When the control mechanism is reset from the second state to the first state, the second end of the sealing sheet is screwed in under the elastic force of the elastic member, so that the second end of each sealing sheet is tightly fitted to the outer wall of the device.

4. The sealing structure according to claim 3, characterized in that: The control mechanism drives the driving part to rotate, and the driving part is connected to the sealing plate via the connecting rod. Under the action of the connecting rod, the sealing plate overcomes the elastic force and rotates out in the centrifugal direction, so that the installation channel surrounded by the second end of the sealing plate expands outward.

5. The sealing structure according to claim 4, characterized in that: The control mechanism is further configured to: When the control mechanism switches from the first state to the second state, the driving portion is controlled to drive the connecting rod so that the second end of the sealing plate overcomes the elastic force and rotates out in the centrifugal direction.

6. The sealing structure according to claim 3, characterized in that: When the second end of the sealing sheet is tightly fitted to the outer wall of the device, the second ends of a plurality of sealing sheets are stacked in a staggered manner.

7. The sealing structure according to claim 2, characterized in that: The sealing sheet includes fan-shaped blades; The second end of the fan-shaped blade is bent toward the installation channel.

8. The sealing structure according to claim 3, characterized in that: The control mechanism includes a button and a transmission member; the button is in the first state in a natural state, and is in the second state in a working state; When the control mechanism switches from the first state to the second state, the button drives the transmission member to control the second end of the sealing plate to rotate out in the centrifugal direction to overcome the elastic force of the elastic member; When the control mechanism is reset from the second state to the first state, the second end of the sealing sheet is screwed in under the elastic force of the elastic member.

9. A sealing method, characterized in that: Sealing is performed using a sealing structure as claimed in any one of claims 1 to 8; the sealing method comprises: Provide equipment; The device is placed in the installation channel; when the device enters the installation channel, the second end of each sealing sheet is tightly fitted to the outer wall of the device, and the sealing structure is airtightly connected to the device.

10. A puncture device, characterized in that: The puncture device comprises a sealing structure according to any one of claims 1 to 8, and an instrument; in The sealing structure is used for sealing and fixing the instrument.

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