Sealing device and puncture device

Abstract

The present invention provides a sealing device and a puncture device. The sealing device comprises: a body having a static sealing portion, the body defining an instrument channel extending through the static sealing portion; a static sealing structure comprising a sealing sleeve and a sealing plate, the sealing sleeve enclosing the static sealing portion and having a static sealing opening corresponding to the instrument channel; the sealing plate rotatably connected to the body and contacting the sealing sleeve to seal the static sealing opening; the sealing plate is configured to be pushed open by an instrument in the instrument channel and separated from the sealing sleeve, thereby allowing the instrument to pass through the static sealing opening. The sealing device and puncture device have a simple structure and are easy to assemble.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a sealing device and a puncture device having the sealing device. Background Art

[0002] The puncture device is a common surgical tool. During surgery, gas is injected into the surgical area through an incision in the patient's body to expand the surgical space and facilitate the procedure. After the gas is injected, the puncture device is inserted into the surgical space, and the sealing structure of the puncture device seals the surgical space in the abdominal cavity. During surgery, surgical instruments are introduced into the surgical space through the puncture device, and the sealing structure of the puncture device continuously seals the surgical space. Currently, puncture devices are complex in structure and difficult to assemble. Summary of the Invention

[0003] Based on this, it is necessary to provide a sealing device with a simple structure and easy assembly, and a puncture device having the sealing device.

[0004] A sealing device comprising:

[0005] A body having a static sealing portion, wherein the body is provided with an instrument channel, and the instrument channel passes through the static sealing portion;

[0006] A static sealing structure comprises a sealing sleeve and a sealing plate, wherein the sealing sleeve is provided with the static sealing portion and has a static sealing opening, wherein the static sealing opening is provided corresponding to the instrument channel, and the sealing plate is rotatably connected to the body and contacts the sealing sleeve to seal the static sealing opening, and the sealing plate is used to be pushed open by an instrument located in the instrument channel and separated from the sealing sleeve, thereby allowing the instrument to pass through the static sealing opening.

[0007] Preferably, the sealing plate is rotatably arranged on the main body by a spring, and the spring elastically contacts the sealing plate so that the sealing plate contacts the sealing sleeve to seal the static sealing opening. The sealing plate is used to be pushed open by the instrument and separated from the sealing sleeve to expose the static sealing opening, and the spring is used to drive the sealing plate to reset when the instrument is removed from the static sealing opening.

[0008] Preferably, the static sealing portion has a wedge-shaped end portion, a positioning hole is provided on the wedge-shaped end portion, and the sealing sleeve includes a sleeve body sleeved on the static sealing portion and a positioning boss accommodated in the positioning hole, and the positioning boss is located on the inner side of the bottom of the sleeve body.

[0009] Preferably, the main body further has a dynamic sealing part and a connecting part connected between the dynamic sealing part and the static sealing part, the instrument channel also passes through the dynamic sealing part and the connecting part, the main body further has a covering part surrounding the connecting part, the covering part is provided with an installation groove and a sealing ring installed in the installation groove.

[0010] Preferably, a sealing flange extends from the periphery of the static sealing opening, and the sealing flange contacts the sealing plate.

[0011] Preferably, the static sealing portion is made of a magnetic material, and the sealing plate is made of a material that can be magnetically adsorbed.

[0012] A puncture device, comprising: a sealing device, and a guide tube detachably connected to the sealing device, the guide tube comprising the receiving cavity, a slot communicating with the receiving cavity, and a first notch communicating with the slot, the sealing device comprising:

[0013] A body having a dynamic sealing portion, a static sealing portion, and a connecting portion connected between the dynamic sealing portion and the static sealing portion, the body being provided with an instrument channel, the instrument channel penetrating the static sealing portion, the body further having a covering portion surrounding the connecting portion, the covering portion comprising a covering body and a first engaging protrusion extending outwardly from the covering body, the covering portion being configured to rotate after the first engaging protrusion enters the engaging slot from the first notch, thereby engaging the first engaging protrusion in the engaging slot; and

[0014] A static sealing structure comprises a sealing sleeve and a sealing plate, wherein the sealing sleeve is provided with the static sealing portion and has a static sealing opening, wherein the static sealing opening is provided corresponding to the instrument channel, and the sealing plate is rotatably connected to the body and abuts against the static sealing portion to seal the static sealing opening, and the sealing plate is used to be pushed open by an instrument located in the instrument channel and separated from the static sealing portion, thereby allowing the instrument to pass through the static sealing opening.

[0015] Preferably, the guide tube includes a mounting flange extending outward from the wall of the receiving cavity, a side connected to the mounting flange, and a folded edge extending inward from the side. The mounting flange, the side, and the folded edge surround the slot, and the first notch is provided on the folded edge.

[0016] Preferably, the cover also includes a second locking protrusion extending outward from the cover body, the folding edge is also provided with a second protrusion corresponding to the second locking protrusion, and the guide tube also includes a resisting portion located in the slot, and the cover portion is used to rotate after the first locking protrusion and the second locking protrusion enter the slot from the first notch and the second notch respectively so that the second locking protrusion abuts the resisting portion.

[0017] Preferably, the sealing plate is rotatably arranged on the main body by a spring, and the spring elastically contacts the sealing plate so that the sealing plate presses against the static sealing portion to seal the static sealing opening. The sealing plate is used to be pushed open by the instrument and separated from the static sealing portion to expose the static sealing opening, and the spring is used to drive the sealing plate to reset when the instrument is removed from the static sealing opening.

[0018] Preferably, the sealing plate is rotatably arranged on the main body by a spring, and the spring elastically contacts the sealing plate so that the sealing plate contacts the sealing sleeve to seal the static sealing opening. The sealing plate is used to be pushed open by the instrument and separated from the sealing sleeve to expose the static sealing opening, and the spring is used to drive the sealing plate to reset when the instrument is removed from the static sealing opening.

[0019] Preferably, the static sealing portion has a wedge-shaped end portion, a positioning hole is provided on the wedge-shaped end portion, and the sealing sleeve includes a sleeve body sleeved on the static sealing portion and a positioning boss accommodated in the positioning hole, and the positioning boss is located on the inner side of the bottom of the sleeve body.

[0020] Preferably, the main body further has a dynamic sealing part and a connecting part connected between the dynamic sealing part and the static sealing part, the instrument channel also passes through the dynamic sealing part and the connecting part, the main body further has a covering part surrounding the connecting part, the covering part is provided with an installation groove and a sealing ring installed in the installation groove.

[0021] Preferably, a sealing flange extends from the periphery of the static sealing opening, and the sealing flange contacts the sealing plate.

[0022] Preferably, the static sealing portion is made of a magnetic material, and the sealing plate is made of a material that can be magnetically adsorbed.

[0023] Compared with the prior art, the sealing device and puncture device of the present invention have a static sealing structure, comprising a sealing sleeve and a sealing plate. The sealing sleeve is sleeved on the static sealing portion, and the sealing plate contacts the sealing sleeve to seal the static sealing opening of the sealing sleeve. When the sealing sleeve needs to be replaced, the sealing plate can be opened outward to separate the sealing sleeve, which is simple and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of an embodiment of a surgical robot;

[0025] Figure 2 、 Figure 3 They are partial schematic diagrams of different embodiments of the surgical robot;

[0026] Figure 4 、 Figure 5 They are respectively a structural schematic diagram and a usage schematic diagram of an embodiment of a puncture device;

[0027] Figure 6 An exploded view of an embodiment of the puncture device of the present invention;

[0028] Figure 7 An exploded view of an embodiment of a sealing device of the present invention;

[0029] Figure 8 An exploded view of another embodiment of the sealing device of the present invention;

[0030] Figure 9 for Figure 8 Schematic diagram of the middle sealing sleeve;

[0031] Figure 10 for Figure 8 Schematic diagram of the Chinese ontology;

[0032] Figure 11 for Figure 6 Schematic diagram of the middle guide tube;

[0033] Figure 12 A partial cross-sectional view of an embodiment of a sealing device;

[0034] Figure 13 is another partial cross-sectional view of an embodiment of a sealing device;

[0035] Figure 14 A partial cross-sectional view of an embodiment of a sealing device equipped with an instrument;

[0036] Figure 15 Another partial cross-sectional view of an embodiment of a sealing device;

[0037] Figure 16 Schematic diagram of the structure of a sealing layer according to an embodiment;

[0038] Figure 17 is another structural schematic diagram of an embodiment of a sealing layer;

[0039] Figure 18 This is another structural diagram of an embodiment of a sealing layer;

[0040] Figure 19FIG. 4 is another structural diagram of an embodiment of a sealing layer. DETAILED DESCRIPTION

[0041] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention 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 present disclosure.

[0042] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. When an element is considered to be "coupled" to another element, it may be directly coupled to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method. The terms "distal end" and "proximal end" used herein are directional words, which are commonly used terms in the field of interventional medical devices, where "distal end" refers to the end away from the operator during surgery, and "proximal end" refers to the end close to the operator during surgery.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0044] like Figure 1 As shown, the surgical robot includes a master console 1 and a slave device 2. The master console 1 is used to send control commands to the slave device 2 based on the doctor's operations to control the slave device 2 and display images captured by the slave device 2. The slave device 2 responds to the control commands sent by the master console 1 and performs corresponding operations. The slave device 2 is also used to capture images inside the body.

[0045] The operating device 2 includes a robotic arm 21, a power mechanism 22 disposed on the robotic arm 21, a surgical instrument 23 disposed on the power mechanism 22, and a sleeve 24 for sleeves on the surgical instrument 23. The robotic arm 21 is used to adjust the position of the surgical instrument 23; the power mechanism 22 is used to drive the surgical instrument 23 to perform corresponding operations. The power mechanism has a mounting housing that is connected to the robotic arm and can move relative to the robotic arm; the surgical instrument 23 is used to extend into the body and perform surgical operations and / or obtain images in the body through its distal end instrument. Specifically, as Figure 2 、 Figure 3 As shown, the surgical instrument 23 passes through the cannula 24 , and the distal end of the surgical instrument extends out of the cannula 24 and is driven by the power mechanism 22 to perform the operation. Figure 2 In the figure, the area where the surgical instrument 23 is located inside the sleeve 24 is a rigid area; Figure 3 In the embodiment, the area where the surgical instrument 23 is located within the sleeve 24 is a flexible area, and the sleeve bends along with the flexible area. The sleeve 24 can also be omitted.

[0046] like Figure 4 、 Figure 5 The figures show a schematic diagram of the structure and application structure of an embodiment of a puncture device. The puncture device 10 is used to make an incision in a patient's body, sealing the surgical space 11 within the incision and preventing air leakage in the surgical space 11 from affecting the surgical procedure. Surgical instruments are passed through the puncture device 10 and reach the surgical space 11 for the procedure. The puncture device 10 comprises a sealing device 100 and a guide tube 200 connected to the sealing device 100. The sealing device 100 has an instrument channel 101, and the guide tube 200 has a guide opening corresponding to and connected to the instrument channel 101, allowing surgical instruments to move within the instrument channel 101 and the guide opening. The sealing device 100 includes a structure for sealing the puncture mechanism. Furthermore, the guide tube 200 may also be provided with a sealing structure. In this embodiment, the guide tube is also provided with an insertion indicator groove 201 to indicate the insertion depth and range of the puncture device, ensuring that the guide tube insertion depth is within a preset range and assisting medical personnel in operation. In other embodiments, the insertion indicator groove may be omitted.

[0047] See also Figure 6 In one embodiment, the sealing device 100 and the guide tube 200 are detachably connected so as to replace the sealing structure. Figure 11The guide tube 200 has a receiving cavity 210, the guide tube 200 has a receiving cavity 210, the guide tube 200 also has a slot 211 communicating with the receiving cavity 210, the guide tube 200 includes a mounting flange 2110 extending outward from the wall of the receiving cavity 210, a side portion 2111 connected to the mounting flange 2110 and a folded edge 2112 extending inward from the side portion 2111, the mounting flange 2110, the side portion 2111 and the The folded edge 2112 is formed around the card slot 211, and the folded edge 2112 is provided with a first notch 2113 and two second notches 2115 at intervals. The first notch 2113 and the two second notches 2115 are connected to the card slot 211. The first notch 2113 is larger than the second notch 2115. The guide tube 200 is installed with a stopper 2119 in the card slot 211, and the stopper 2119 is located on the mounting flange 2110 on one side of the first notch 2113.

[0048] Please continue reading Figures 7 to 10 The sealing device 100 comprises a body 110, a static sealing structure 120, and a dynamic sealing structure 130. The body 110 includes a static sealing portion 111, a dynamic sealing portion 112, and a connecting portion 114 connecting the static sealing portion 111 and the dynamic sealing portion 112. The instrument channel 101 passes through the dynamic sealing portion 112, the connecting portion 114, and the static sealing portion 111. The body 110 also includes a covering portion 116 surrounding the connecting portion 114. The covering portion 116 includes a covering body 1161 and a first engaging protrusion 1163 and two second engaging protrusions 1165 extending outward from the covering body 1161. The first engaging protrusion 1163 is larger than the second engaging protrusion 1165. The first engaging protrusion 1163 corresponds to the first notch 2113, and the second engaging protrusion 1165 corresponds to the second notch 2115. The cover portion 116 is provided with a mounting groove 1167 surrounding the cover body 1161 , and the body 110 further includes a sealing ring 118 mounted in the mounting groove 1167 . The dynamic sealing portion 112 includes a positioning portion, which is a positioning post 113 in this embodiment.

[0049] The dynamic sealing structure 130 includes a sealing layer 131, a partition 132 and a fixing portion. In this embodiment, the fixing portion is a locking ring 133. In other embodiments, the fixing portion is fixed to the dynamic sealing portion 112. Specifically, the fixing portion includes a hook and the dynamic sealing portion 112 is provided with a hole; or the fixing portion includes a hole and the dynamic sealing portion 112 includes a hook. The sealing layer 131 is provided on the dynamic sealing portion 112. The sealing layer 131 has a plurality of dynamic sealing openings 131A. Each dynamic sealing opening 131A corresponds to an instrument channel 101. When the surgical instrument is inserted into the sealing device 100, the surgical space 11 is sealed by the sealing layer 131, that is, the sealing layer 131 seals the instrument and the dynamic sealing structure 130 by wrapping the instrument. The sealing layer 131 is detachably provided on the dynamic sealing portion 112. The sealing layer 131 includes a positioning matching portion corresponding to the positioning portion of the dynamic sealing portion 112 . In this embodiment, a positioning hole 131D matching the positioning post 113 is provided on the periphery of the sealing layer 131 .

[0050] The separator 132 comprises a base 1320 and a plurality of interconnected separator ribs 132A located on the base 1320. The separator ribs 132A abut against the sealing layer 131. The base 1320 is provided with a plurality of guide openings 1321 corresponding to the instrument channel 101 to guide surgical instruments and facilitate their rapid insertion into the instrument channel 101. In this embodiment, the separator ribs 132A are connected at one end and radiate outward at the other end. The height of the connected ends of the separator ribs 132A in the axial direction of the dynamic sealing opening 131A is greater than the height of the other ends of the separator ribs 132A in the same direction. The separator 132 isolates the multiple dynamic sealing openings 131A defined in the sealing layer 131 from one another. The base 1320 includes a positioning adapter corresponding to the positioning portion of the dynamic sealing portion 112. In this embodiment, the base 1320 is provided with a plurality of receiving holes 1323 corresponding to the positioning posts 113.

[0051] The locking ring 133 cooperates with the dynamic sealing portion 112 to secure the sealing layer 131 to the dynamic sealing portion 112. The locking ring 133, the separator 132, the sealing layer 131, and the dynamic sealing portion 112 are arranged in this order. The locking ring 133 locks the separator 132 so that it is tightly against the sealing layer 131. The locking ring 133 is detachably connected to the dynamic sealing portion 112. In this embodiment, the locking ring 133 and the dynamic sealing portion 112 are detachably connected via a threaded structure. In other embodiments, the locking ring 133 is detachably connected to the dynamic sealing portion 112 via a snap-fit ​​structure.

[0052] The static sealing structure 120 comprises a sealing sleeve 121 and a sealing plate 122. The sealing sleeve 121 is fitted over the static sealing portion 111 and has a static sealing opening 121A, corresponding to the instrument channel 101. This opening is used to accommodate surgical instruments and ensures that the edge of the static sealing opening 121A is in close contact with the instruments to achieve a seal. The sealing plate 122 is rotatably mounted on the body 110. When no surgical instrument is inserted into the static sealing portion 111, the sealing plate 122 cooperates with the static sealing portion 111 to abut against the static sealing opening 121A. When a surgical instrument is inserted into the static sealing portion 111, the sealing plate 122 exposes the static sealing opening 121A to allow the surgical instrument to pass through.

[0053] The sealing plate 122 includes a plate body 1221 and a protrusion 1223 extending from the plate body 1221. The protrusion 1223 is used to resist a surgical instrument, separating the plate body 1221 from the surgical instrument and preventing the plate body 1221 from entering the gap at the distal end of the surgical instrument. When the sealing plate 122 seals the static sealing opening 121A, the protrusion 1223 is located within the static sealing opening 121A.

[0054] The sealing plate 122 is rotatably mounted on the body 110 by a spring 129. In this embodiment, the spring is a torsion spring. When the sealing device 100 is not inserted into an instrument, the sealing plate 122 is tightly pressed against the static sealing opening 121A of the sealing sleeve 121 by the elastic force of the spring to close the instrument channel 101. When the sealing device 100 is inserted into an instrument 23, the instrument pushes the sealing plate 122 open to be inserted into the body. When the instrument is removed from the sealing device 100, the sealing plate 122 is driven by the elastic restoring force of the spring to seal the static sealing opening 121A again.

[0055] In another embodiment, the sealing plate 122 is magnetically attached to the static sealing portion 111. For example, the static sealing portion 111 is made of a magnetic material, and the sealing plate 122 is made of a magnetically attachable material. When the surgical instrument is not inserted into the sealing device 100, the sealing plate 122 magnetically seals the instrument channel 101. When the surgical instrument is inserted, the surgical instrument pushes the sealing plate 122 away.

[0056] The dimensions of the static sealing opening 121A are smaller than those of the opening of the instrument channel 101 on the static sealing portion 111. That is, the static sealing opening 121A overlaps the opening of the instrument channel 101 on the static sealing portion 111 along its perimeter. This further improves the sealing performance of the sealing device 100. A sealing flange 121B extends from the perimeter of the static sealing opening 121A, which contacts the sealing plate 122. In this case, the sealing flange 121B and the sealing plate 122 match in structure.

[0057] In one embodiment, the static sealing portion 111 has a wedge-shaped end with a positioning structure provided thereon to position the sealing sleeve 121 during installation. The positioning structure is a positioning hole 111A. The sealing sleeve 121 includes a sleeve body and a positioning boss 121C for receiving in the positioning hole 111A. The positioning boss 121C is located on the inner side of the bottom of the sleeve body.

[0058] In one embodiment, the proximal end of the static sealing portion 111 includes a mounting portion 111B, which is connected to the sealing sleeve 121 and is used to secure the sealing sleeve 121 to prevent it from falling off during operation. For example, the mounting portion may have a groove structure, and the sealing sleeve 121 may have a matching protrusion and be received within the mounting portion. In another example, the mounting portion may have a snap-fit ​​structure that engages with the sealing sleeve 121 to prevent it from falling off.

[0059] In one embodiment, the sealing sleeve 121 is detachably mounted on the body 110 for easy replacement. In other embodiments, the sealing sleeve 121 may also be non-detachably mounted on the body 110 .

[0060] When assembling the dynamic sealing structure 130 on the body 110, first place the sealing layer 131 on the dynamic sealing portion 112, allowing the positioning posts 113 of the dynamic sealing portion 112 to pass through the corresponding positioning holes 131D of the sealing layer 131. Then, align the receiving holes 1323 of the partition 132 with the corresponding positioning posts 113. Move the partition 132 toward the positioning posts 113 so that the positioning posts 113 are received in the corresponding receiving holes 1323. Finally, screw the locking ring 133 and the dynamic sealing portion 112 together, thereby securing the partition 132 and the sealing layer 131 to the dynamic sealing portion 112. At this point, the dynamic sealing structure 130 is assembled with the body 110. At this point, the sealing layer 131 is located between the dynamic sealing portion 112 and the partition 132, and the partition ribs 132A of the partition 132 are located within the ring of the locking ring 133.

[0061] When assembling the sealing sleeve 121 on the static sealing part 111, the sealing plate 122 is opened, the sealing sleeve 121 is placed on the prime static sealing part 111, and the positioning boss 121C of the sealing sleeve 121 is accommodated in the positioning hole 111A of the static sealing part 111. Then, the sealing plate 122 is placed in a natural state, and the sealing plate 122 seals the static sealing opening 121A under the drive of the elastic restoring force of the spring.

[0062] The assembled sealing device 100 is placed into the receiving cavity 210 of the guide tube 200, with the first engaging protrusion 1163 and the two second engaging protrusions 1165 of the sealing device 100 aligned with the first notch 2113 and the two second notches 2115 of the guide tube 200, respectively. The sealing device 100 is then moved toward the guide tube 200 so that the first engaging protrusion 1163 and the two second engaging protrusions 1165 enter the engaging groove 211 from the first notch 2113 and the two second notches 2115, respectively. The bee device 100 is then rotated so that one of the second engaging protrusions 1165 contacts the stopper 2119 in the engaging groove 211. The assembly is now complete. At this point, the sealing ring 118 of the sealing device 100 contacts the wall of the receiving cavity 210, thereby sealing the receiving cavity 210.

[0063] See also Figures 12 to 14 When in use, the instrument 23 enters the instrument channel 101 from the guide port 1321 and the dynamic sealing opening 131A of the dynamic sealing structure 130 and pushes open the sealing plate 122; when the instrument 23 is removed from the instrument channel 101, the sealing plate 122 seals the static sealing opening 121A under the drive of the elastic restoring force of the spring.

[0064] In other embodiments, the sealing device 100 may be non-detachably connected to the guide tube 200. It should be noted that the sealing device 100 and the guide tube 200 may be made of the same material or different materials. For example, the sealing device 100 may be made of PEEK (polyetheretherketone) and the guide tube 200 may be made of SUS304 (stainless steel).

[0065] In one embodiment, the dynamic sealing structure 130 is located at the proximal end of the static sealing portion 111. At this time, when the surgical instrument enters the body through the dynamic sealing structure 130 and the static sealing structure 120 in sequence, after the surgical instrument opens the sealing plate 122 of the static sealing structure 120, the surgical space 11 can be sealed through the dynamic sealing structure 130, so that the sealing effect is better.

[0066] See also Figure 15In this embodiment, the dynamic sealing portion 112 can also be sealed by multiple (for example, two) sealing layers 131. In this case, each instrument channel 101 can correspond to one sealing layer 131 or multiple sealing layers 131. Multiple sealing layers 131 are arranged in parallel and correspond to different instrument channels 101. In this case, each sealing layer 131 corresponds to multiple sealing channels. In other embodiments, when multiple sealing layers 131 are arranged in parallel, each sealing layer 131 can also correspond to only one sealing channel. This makes it easier to isolate each sealing channel. Each instrument channel 101 corresponds to multiple sealing layers 131 to achieve a better sealing effect. Specifically, each instrument channel 101 corresponds to two dynamic sealing structures 130, and the multiple sealing layers 131 are arranged at intervals and are all located at the proximal end of the static sealing structure 120. In other embodiments, the two dynamic sealing structures 130 can also be located at both ends of the static sealing structure 120. Alternatively, the multiple sealing layers 131 are stacked and abut each other.

[0067] like Figure 16 In the embodiment shown, two adjacent areas can also be sealed by multiple supporting grooves 131B and supporting rib structures. Specifically, multiple supporting grooves 131B are arranged in parallel and all support the supporting ribs to enhance the sealing effect. It should be noted that the multiple supporting grooves can be all provided on the sealing layer 131, or partly provided on the sealing layer 131 and partly provided on the partition 132. Figure 17 , the sealing layer also has other structures.

[0068] Similar to the sealing method of the partition 132 and the sealing layer 131, the main body 110 and the sealing layer 131 can also be sealed by means of abutment grooves and abutment ribs. For example, the main body 110 is provided with abutment grooves, and the sealing layer 131 is provided with abutment ribs corresponding to the abutment grooves and received therein. The partition 132 abuts the sealing layer 131, so that the sealing layer 131 is tightly abutted against the partition 132 and the main body 110, thereby achieving a seal. For another example, the main body 110 is provided with abutment ribs, and the sealing layer 131 is provided with abutment grooves for receiving the abutment ribs.

[0069] Similar to the sealing method of the partition and the sealing layer 131, the body 110 may also have a plurality of abutting grooves and / or abutting ribs in two adjacent areas of the sealing layer 131 to further strengthen the sealing, which will not be repeated here.

[0070] It should be noted that the sealing structures between the partition 132, the sealing layer 131, and the main body 110 may also have only a protruding structure without a matching groove structure, or only a groove structure without a matching protruding structure. In this case, the partition layer tightly supports the sealing layer 131, so that the sealing layer 131 is recessed to accommodate the protruding structure, or the sealing layer 131 fills the groove structure.

[0071] In one embodiment, the dynamic sealing portion 112 defines a receiving groove, within which the sealing layer 131 is received. If multiple sealing layers 131 are arranged in parallel, there are multiple receiving grooves, corresponding to each of the multiple sealing layers 131, to receive the corresponding sealing layers 131. In this embodiment, the depth of the receiving grooves is equal to or less than the thickness of the sealing layer 131.

[0072] In order to more conveniently replace the sealing layer 131, Figure 18 In the embodiment shown, there is a gap between the edge of the sealing layer 131 and the sidewall of the receiving groove, for example, the gap is 1mm to 3mm. In this way, the sealing layer 131 can be prevented from bulging when installing, thereby affecting the sealing effect.

[0073] See also Figure 19 In another embodiment, a sealing layer 131' is provided on the dynamic sealing portion 112, and the sealing layer 131' has a plurality of dynamic sealing openings 131'A, each dynamic sealing opening 131'A corresponding to an instrument channel 101. When the surgical instrument is inserted into the sealing device 100, the surgical space 11 is sealed by the sealing layer 131', that is, the sealing layer 131' seals the instrument and the dynamic sealing structure 130 by wrapping the instrument. The sealing layer 131' is detachably provided on the dynamic sealing portion 112. The positioning matching portion of the sealing layer 131' is a positioning column 131'D protruding at both ends, which is used to cooperate with the positioning portion of the dynamic sealing portion 112. At this time, the positioning portion of the dynamic sealing portion 112 is a hole structure, and the positioning adapter portion of the partition portion is also a hole structure.

[0074] Based on the above inventive concept, one of the positioning portion of the dynamic sealing portion 112 , the positioning matching portion of the sealing layer and the positioning adapter portion is a positioning post, and the others are hole structures that cooperate with the positioning post.

[0075] 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.

[0076] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A sealing device, characterized in that: include: The body comprises a static sealing portion, a dynamic sealing portion, and a connecting portion connected between the dynamic sealing portion and the static sealing portion, the body defining an instrument channel that passes through the dynamic sealing portion, the connecting portion, and the static sealing portion; the body further comprises a covering portion surrounding the connecting portion, the covering portion comprising a covering body and a first engaging protrusion and two second engaging protrusions extending outwardly from the covering body, wherein the first engaging protrusion is larger than the second engaging protrusion; a static sealing structure comprising a sealing sleeve and a sealing plate, wherein the sealing sleeve is sleeved on the static sealing portion and has a static sealing opening, the static sealing opening being arranged corresponding to the instrument channel; the sealing plate is rotatably connected to the body and contacts the sealing sleeve to seal the static sealing opening, and the sealing plate is configured to be pushed open by an instrument located in the instrument channel and separated from the sealing sleeve, thereby allowing the instrument to pass through the static sealing opening; A dynamic sealing structure comprising a sealing layer having a plurality of dynamic sealing openings disposed on the dynamic sealing portion of the body, a partition portion isolating the plurality of dynamic sealing openings disposed on the sealing layer from one another, and a fixing portion cooperating with the dynamic sealing portion to lock the sealing layer to the dynamic sealing portion; the sealing layer being configured to form a seal between the instrument and the dynamic sealing structure by wrapping around the instrument when the instrument is inserted into the sealing device; the fixing portion, partition portion, sealing layer, and dynamic sealing portion being disposed in sequence; wherein the sealing layer is located above the instrument channel, and the static sealing structure is located below the instrument channel; The static sealing portion has a wedge-shaped end portion, a positioning hole is provided on the wedge-shaped end portion, and the sealing sleeve includes a sleeve body sleeved on the static sealing portion and a positioning boss accommodated in the positioning hole, wherein the positioning boss is located on the inner side of the bottom of the sleeve body.

2. The sealing device according to claim 1, characterized in that The sealing plate is rotatably arranged on the main body by a spring. The spring elastically contacts the sealing plate so that the sealing plate contacts the sealing sleeve to seal the static sealing opening. The sealing plate is used to be pushed open by the instrument and separated from the sealing sleeve to expose the static sealing opening. The spring is used to drive the sealing plate to reset when the instrument is removed from the static sealing opening.

3. The sealing device according to claim 1, characterized in that The covering portion is provided with a mounting groove and a sealing ring mounted in the mounting groove.

4. The sealing device according to claim 1, characterized in that A sealing flange extends from the periphery of the static sealing opening, and the sealing flange contacts the sealing plate.

5. The sealing device according to claim 1, characterized in that The static sealing portion is made of a magnetic material, and the sealing plate is made of a material that can be magnetically adsorbed.

6. A puncture device, characterized in that: include: A sealing device, and a guide tube detachably connected to the sealing device, wherein the guide tube includes a receiving cavity, a slot communicating with the receiving cavity, and a first notch communicating with the slot, and the sealing device includes: A main body having a dynamic sealing portion, a static sealing portion, and a connecting portion connected between the dynamic sealing portion and the static sealing portion, the main body being provided with an instrument channel, the instrument channel passing through the dynamic sealing portion, the connecting portion, and the static sealing portion, the main body further having a covering portion surrounding the connecting portion, the covering portion comprising a covering body and a first engaging protrusion and two second engaging protrusions extending outwardly from the covering body, the size of the first engaging protrusion being larger than the size of the second engaging protrusion, the covering portion being configured to rotate after the first engaging protrusion enters the engaging slot from the first notch so as to engage the first engaging protrusion in the engaging slot; and a static sealing structure comprising a sealing sleeve and a sealing plate, wherein the sealing sleeve is sleeved over the static sealing portion and has a static sealing opening, the static sealing opening being arranged corresponding to the instrument channel; the sealing plate is rotatably connected to the body and abuts against the static sealing portion to seal the static sealing opening; the sealing plate is configured to be pushed open by an instrument located in the instrument channel and separated from the static sealing portion, thereby allowing the instrument to pass through the static sealing opening; A dynamic sealing structure comprising a sealing layer having a plurality of dynamic sealing openings disposed on the dynamic sealing portion of the body, a partition portion isolating the plurality of dynamic sealing openings disposed on the sealing layer from one another, and a fixing portion cooperating with the dynamic sealing portion to lock the sealing layer to the dynamic sealing portion; the sealing layer being configured to form a seal between the instrument and the dynamic sealing structure by wrapping around the instrument when the instrument is inserted into the sealing device; the fixing portion, partition portion, sealing layer, and dynamic sealing portion being disposed in sequence; wherein the sealing layer is located above the instrument channel, and the static sealing structure is located below the instrument channel; The static sealing portion has a wedge-shaped end portion, a positioning hole is provided on the wedge-shaped end portion, and the sealing sleeve includes a sleeve body sleeved on the static sealing portion and a positioning boss accommodated in the positioning hole, wherein the positioning boss is located on the inner side of the bottom of the sleeve body.

7. The puncture device according to claim 6, characterized in that The guide tube includes a mounting flange extending outward from the wall of the receiving cavity, a side connected to the mounting flange, and a folded edge extending inward from the side. The mounting flange, the side, and the folded edge surround the card slot, and the first notch is provided on the folded edge.

8. The puncture device according to claim 7, characterized in that The folding edge is also provided with a second notch corresponding to the second locking protrusion, and the guide tube also includes a resisting portion located in the slot, and the covering portion is used to rotate after the first locking protrusion and the second locking protrusion enter the slot from the first notch and the second notch respectively, so that the second locking protrusion contacts the resisting portion.

9. The puncture device according to claim 6, characterized in that: The sealing plate is rotatably arranged on the main body by a spring. The spring elastically contacts the sealing plate so that the sealing plate presses against the static sealing portion to seal the static sealing opening. The sealing plate is used to be pushed open by the instrument and separated from the static sealing portion to expose the static sealing opening. The spring is used to drive the sealing plate to reset when the instrument is removed from the static sealing opening.

10. The puncture device according to claim 6, characterized in that The covering portion is provided with a mounting groove and a sealing ring mounted in the mounting groove.

11. The puncture device according to claim 6, characterized in that: A sealing flange extends from the periphery of the static sealing opening, and the sealing flange contacts the sealing plate.

12. The puncture device according to claim 6, characterized in that The static sealing portion is made of a magnetic material, and the sealing plate is made of a material that can be magnetically adsorbed.

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