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 dynamic sealing part, the body is provided with a plurality of instrument channels, the instrument channels penetrate the dynamic sealing part; a dynamic sealing structure, the dynamic sealing structure comprises a sealing layer, a partition and a fixing part, the sealing layer is arranged on the dynamic sealing part, the sealing layer has a plurality of dynamic sealing openings, each dynamic sealing opening corresponds to an instrument channel, the dynamic sealing opening is used to accommodate the instrument so that the edge of the dynamic sealing opening is close to the instrument, the partition comprises a base, a plurality of partition ribs located on the base and connected to each other, the partition is supported by the sealing layer, the base is provided with a plurality of guide openings corresponding to the dynamic sealing openings for guiding the instrument, the fixing part is used to fix with the dynamic sealing part so that the sealing layer is fixed between the dynamic sealing part and the partition. The sealing device and the 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 tool for performing surgery. During surgery, gas is injected into the surgical area through an incision on the patient's body to expand the surgical space for easier surgery. After the gas is injected, the puncture device is inserted into the surgical space, and the surgical space in the abdominal cavity is sealed by the sealing structure of the puncture device. During surgery, surgical instruments enter the surgical space through the puncture device, and the sealing structure of the puncture device continues to seal the surgical space. Currently, the structure of the puncture device is complex 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 convenient assembly, and a puncture device having the sealing device.

[0004] A sealing device, comprising:

[0005] A body having a dynamic sealing portion, wherein the body is provided with a plurality of instrument channels, and the instrument channels penetrate through the dynamic sealing portion;

[0006] A dynamic sealing structure, wherein the dynamic sealing structure comprises a sealing layer, a partition and a fixing portion, wherein the sealing layer is arranged on the dynamic sealing portion, the sealing layer has a plurality of dynamic sealing openings, each dynamic sealing opening corresponds to an instrument channel, the dynamic sealing opening is used to accommodate instruments so that the edge of the dynamic sealing opening is in close contact with the instruments, the partition comprises a base, a plurality of partition ribs located on the base and connected to each other, the partition is abutted against the sealing layer, the base is provided with a plurality of guide openings corresponding to the dynamic sealing openings for guiding the instruments, and the fixing portion is used to be fixed to the dynamic sealing portion so that the sealing layer is fixed between the dynamic sealing portion and the partition.

[0007] Preferably, the fixing portion is a locking ring, and the locking ring is used to be locked with the dynamic sealing portion.

[0008] Preferably, the dynamic sealing portion includes a positioning portion, the sealing layer includes a corresponding positioning matching portion, the partition portion includes a corresponding positioning adapting portion, and the positioning portion, the positioning matching portion and the positioning adapting portion are used to be assembled together.

[0009] Preferably, the positioning portion is a positioning column, the positioning matching portion is a positioning hole, the positioning adapter portion is a receiving hole, and the positioning column is used to pass through the positioning hole and be received in the receiving hole.

[0010] Preferably, one of the positioning portion, the positioning matching portion and the positioning adapter portion is a positioning column, and the others are hole structures that cooperate with the positioning column.

[0011] Preferably, one end of the plurality of separation ribs are connected together and the other end is divergently spread out, and the height of the connected end of the separation ribs in the axial direction of the dynamic sealing opening is greater than the height of the other end of the separation rib in the direction.

[0012] Preferably, the body further comprises a static sealing portion, the instrument channel passes through the static sealing portion, the sealing device further comprises a static sealing structure, the static sealing structure comprises a sealing sleeve and a sealing plate, the sealing sleeve is sleeved with the static sealing portion, and the sealing sleeve has a plurality of static sealing openings corresponding to the plurality of instrument channels, the sealing plate is rotatably connected to the body and contacts the sealing sleeve to seal the static sealing openings, the sealing plate is used to be pushed open by an instrument located in the instrument channel and separated from the sealing sleeve, so as to allow the instrument to pass through the static sealing opening, the static sealing portion has a wedge-shaped end portion, a positioning hole is provided on the wedge-shaped end portion, the sealing sleeve comprises 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.

[0013] Preferably, the sealing plate is rotatably disposed 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, and the spring is used to drive the sealing plate to reset when the instrument is moved out of the static sealing opening.

[0014] Preferably, the main body also has a connecting portion connected between the dynamic sealing portion and the static sealing portion, the instrument channel also passes through the dynamic sealing portion and the connecting portion, and the main body also has a covering portion surrounding the connecting portion, the covering portion is provided with an installation groove and a sealing ring installed in the installation groove.

[0015] A puncture device, comprising: a sealing device, and a guide tube detachably connected to the sealing device, the guide tube comprising a receiving cavity, a slot communicating with the receiving cavity, and a first notch communicating with the slot, the sealing device comprising:

[0016] 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 having an instrument channel, the instrument channel passing through the dynamic sealing portion, the connecting portion and the static sealing portion, the body also having a covering portion surrounding the connecting portion, the covering portion comprising a covering body and a first engaging protrusion extending outward from the covering body, the covering portion being used to rotate after the first engaging protrusion enters the engaging groove from the first notch so that the first engaging protrusion is engaged in the engaging groove; and

[0017] A dynamic sealing structure, wherein the dynamic sealing structure comprises a sealing layer, a partition and a fixing portion, wherein the sealing layer is arranged on the dynamic sealing portion, the sealing layer has a plurality of dynamic sealing openings, each dynamic sealing opening corresponds to an instrument channel, the dynamic sealing opening is used to accommodate instruments so that the edge of the dynamic sealing opening is in close contact with the instruments, the partition comprises a base, a plurality of partition ribs located on the base and connected to each other, the partition is abutted against the sealing layer, the base is provided with a plurality of guide openings corresponding to the dynamic sealing openings for guiding the instruments, and the fixing portion is used to be fixed to the dynamic sealing portion so that the sealing layer is fixed between the dynamic sealing portion and the partition.

[0018] 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.

[0019] Preferably, the cover also includes a second locking protrusion extending outward from the cover body, the folded 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 respectively enter the slot from the first notch and the second notch so that the second locking protrusion abuts against the resisting portion.

[0020] Preferably, the sealing device also includes a static sealing structure, which includes a sealing sleeve and a sealing plate, the sealing sleeve is sleeved with the static sealing portion, and the sealing sleeve has a plurality of static sealing openings corresponding to the plurality of instrument channels, the sealing plate is rotatably connected to the main body and contacts the sealing sleeve to seal the static sealing openings, the sealing plate is used to be pushed open by an instrument located in the instrument channel and separated from the sealing sleeve, so as to allow the instrument to pass through the static sealing opening, the static sealing portion has a wedge-shaped end, a positioning hole is provided on the wedge-shaped end, 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.

[0021] Preferably, the sealing plate is rotatably disposed 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, and the spring is used to drive the sealing plate to reset when the instrument is moved out of the static sealing opening.

[0022] Preferably, the main body also has a connecting portion connected between the dynamic sealing portion and the static sealing portion, the instrument channel also passes through the dynamic sealing portion and the connecting portion, and the main body also has a covering portion surrounding the connecting portion, the covering portion is provided with an installation groove and a sealing ring installed in the installation groove.

[0023] Preferably, the fixing portion is a locking ring, and the locking ring is used to be locked with the dynamic sealing portion.

[0024] Preferably, the dynamic sealing portion includes a positioning portion, the sealing layer includes a corresponding positioning matching portion, the partition portion includes a corresponding positioning adapting portion, and the positioning portion, the positioning matching portion and the positioning adapting portion are used to be assembled together.

[0025] Preferably, the positioning portion is a positioning column, the positioning matching portion is a positioning hole, the positioning adapter portion is a receiving hole, and the positioning column is used to pass through the positioning hole and be received in the receiving hole.

[0026] Preferably, one of the positioning portion, the positioning matching portion and the positioning adapter portion is a positioning column, and the others are hole structures that cooperate with the positioning column.

[0027] Preferably, one end of the plurality of separation ribs are connected together and the other end is divergently spread out, and the height of the connected end of the separation ribs in the axial direction of the dynamic sealing opening is greater than the height of the other end of the separation rib in the direction.

[0028] Compared with the prior art, the sealing device and puncture device of the present invention have a dynamic sealing structure, which includes a sealing layer, a partition and a fixing part. The sealing layer is used to seal the device, and the fixing part is used to fix the sealing layer on the dynamic sealing part. When the sealing layer needs to be replaced, the sealing layer can be separated by disassembling the fixing part, which is simple and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of an embodiment of a surgical robot;

[0030] Figure 2 , Figure 3 They are partial schematic diagrams of different embodiments of the surgical robot;

[0031] Figure 4 , Figure 5 They are respectively a structural schematic diagram and a usage schematic diagram of an embodiment of a puncture device;

[0032] Figure 6 An exploded view of an embodiment of the puncture device of the present invention;

[0033] Figure 7 An exploded view of an embodiment of a sealing device of the present invention;

[0034] Figure 8 An exploded view of another embodiment of the sealing device of the present invention;

[0035] Fig. 9 for Figure 8 Schematic diagram of the middle sealing sleeve;

[0036] Fig.10 for Figure 8 Schematic diagram of the Chinese body;

[0037] Fig.11 for Figure 6 Schematic diagram of the middle guide tube;

[0038] Fig.12 A partial cross-sectional view of an embodiment of a sealing device;

[0039] Fig.13 is another partial cross-sectional view of an embodiment of a sealing device;

[0040] Fig.14 A partial cross-sectional view of an embodiment of a sealing device equipped with an instrument;

[0041] Fig.15 Another partial cross-sectional view of an embodiment of a sealing device;

[0042] Fig.16 It is a structural schematic diagram of an embodiment of a sealing layer;

[0043] Fig.17 is another structural schematic diagram of an embodiment of a sealing layer;

[0044] Fig.18 It is another structural schematic diagram of an embodiment of a sealing layer;

[0045] Fig.19 FIG. 4 is another structural schematic diagram of an embodiment of a sealing layer. DETAILED DESCRIPTION

[0046] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0047] 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 centered 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 centered 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 centered element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method. The terms "distal end" and "proximal end" used herein are directional terms, which are commonly used terms in the field of interventional medical devices, wherein the "distal end" refers to the end away from the operator during surgery, and the "proximal end" refers to the end close to the operator during surgery.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0049] like Figure 1 As shown, the surgical robot includes a main operation console 1 and a slave operation device 2. The main operation console 1 is used to send control commands to the slave operation device 2 according to the doctor's operation to control the slave operation device 2, and is also used to display the image obtained by the slave device 2. The slave operation device 2 is used to respond to the control command sent by the main operation console 1 and perform corresponding operations, and the slave operation device 2 is also used to obtain images in the body.

[0050] The operating device 2 includes a robot arm 21, a power mechanism 22 disposed on the robot arm 21, a surgical instrument 23 disposed on the power mechanism 22, and a sleeve 24 for sleeves of the surgical instrument 23. The robot 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, and the power mechanism has a mounting housing, which is connected to the robot arm and can move relative to the robot arm; the surgical instrument 23 is used to extend into the body and perform surgical operations and / or obtain in-body images through its distal end instrument. Specifically, as Figure 2 , Figure 3 As shown, the surgical instrument 23 passes through a sleeve 24, and its end instrument extends out of the sleeve 24 and is driven by a power mechanism 22 to perform an 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 inside the sleeve 24 is a flexible area, and the sleeve bends along with the flexible area. The sleeve 24 may also be omitted.

[0051] like Figure 4 , Figure 5 As shown, they are respectively a schematic diagram of the structure of an embodiment of a puncture device and a schematic diagram of the application structure. The puncture device 10 is used to penetrate an incision on a patient's body to close the surgical space 11 in the incision to prevent air leakage in the surgical space 11 from affecting the surgery. The surgical instrument penetrates the puncture device 10 to reach the surgical space 11 to perform the surgery. The puncture device 10 includes: 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 port corresponding to and connected to the instrument channel 101, so that the surgical instrument moves in the instrument channel 101 and the guide port. Among them, the sealing device 100 has a structure for sealing the puncture mechanism. In addition, a structure for sealing can also be provided on the guide tube 200. In this embodiment, an insertion indicator groove 201 is also provided on the guide tube to indicate the insertion depth and range of the puncture device, so that the insertion depth of the guide tube is within a preset range to assist medical staff in operation. In other embodiments, the insertion indicator groove can also be omitted.

[0052] See also Figure 6 In one embodiment, the sealing device 100 and the guide tube 200 are detachably connected to facilitate replacement of the sealing structure. Fig.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 connected to 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 surrounds 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, and the first notch 2113 is larger than the second notch 2115. The guide tube 200 is installed with a resisting portion 2119 in the card slot 211, and the resisting portion 2119 is located on the mounting flange 2110 on one side of the first notch 2113.

[0053] 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 comprises a static sealing portion 111, a dynamic sealing portion 112 and a connecting portion 114 connected between the static sealing portion 111 and the dynamic sealing portion 112, and the instrument channel 101 penetrates the dynamic sealing portion 112, the connecting portion 114 and the static sealing portion 111. The body 110 further comprises a covering portion 116 surrounding the connecting portion 114, the covering portion 116 comprises a covering body 1161 and a first clamping protrusion 1163 and two second clamping protrusions 1165 extending outward from the covering body 1161. The first clamping protrusion 1163 is larger than the second clamping protrusion 1165. The first clamping protrusion 1163 corresponds to the first notch 2113, and the second clamping 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, and in this embodiment, the positioning portion is a positioning column 113.

[0054] The dynamic sealing structure 130 includes a sealing layer 131, a partition 132 and a fixing part. In this embodiment, the fixing part is a locking ring 133. In other embodiments, the fixing part is fixed on the dynamic sealing part 112. Specifically, the fixing part includes a hook and the dynamic sealing part 112 is provided with a hole; or the fixing part includes a hole and the dynamic sealing part 112 includes a hook. The sealing layer 131 is arranged on the dynamic sealing part 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 arranged on the dynamic sealing part 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 column 113 is provided on the periphery of the sealing layer 131 .

[0055] The partition part 132 includes a base 1320, a plurality of partition ribs 132A located on the base 1320 and connected to each other, the partition ribs 132A abut against the sealing layer 131, and the base 1320 is provided with a plurality of guide openings 1321 corresponding to the instrument channel 101 to guide the surgical instrument so that it can be quickly inserted into the instrument channel 101. In this embodiment, one end of the plurality of partition ribs 132A is connected together, and the other end is spread out, and the height of the connected end of the partition ribs 132A in the axial direction of the dynamic sealing opening 131A is greater than the height of the other end of the partition ribs 132A in the same direction. The partition part 132 isolates the plurality of dynamic sealing openings 131A opened on the sealing layer 131 from each other. The base 1320 includes a positioning adapter corresponding to the positioning part of the dynamic sealing part 112. In this embodiment, the base 1320 is provided with a plurality of receiving holes 1323 corresponding to the positioning column 113.

[0056] The locking ring 133 cooperates with the dynamic sealing part 112 to lock the sealing layer 131 on the dynamic sealing part 112. The locking ring 133, the partition part 132, the sealing layer 131, and the dynamic sealing part 112 are arranged in sequence. The locking ring 133 locks the partition part 132 so that it is tightly against the sealing layer 131. The locking ring 133 is detachably connected to the dynamic sealing part 112. In this embodiment, the locking ring 133 is detachably connected to the dynamic sealing part 112 through a threaded structure. In other embodiments, the locking ring 133 is detachably connected to the dynamic sealing part 112 through a snap-on structure.

[0057] The static sealing structure 120 has a sealing sleeve 121 and a sealing plate 122. The sealing sleeve 121 is sleeved on the static sealing part 111, and the sealing sleeve 121 has a static sealing opening 121A, which is arranged corresponding to the instrument channel 101, and is used to accommodate surgical instruments and make the edge of the static sealing opening 121A close to the surgical instruments to achieve sealing. The sealing plate 122 is rotatably arranged on the body 110. When the static sealing part 111 is not inserted with a surgical instrument, it cooperates with the static sealing part 111 to abut against the static sealing opening 121A. When the static sealing part 111 is inserted with a surgical instrument, the sealing plate 122 exposes the static sealing opening 121A to allow the surgical instrument to pass through.

[0058] The sealing plate 122 includes a plate body 1221 and a convex bump 1223 extending from the plate body 1221. The convex bump 1223 is used to resist the surgical instrument so that the plate body 1221 does not contact the surgical instrument, thereby preventing the plate body 1221 from entering the gap of the distal end of the surgical instrument. When the sealing plate 122 seals the static sealing opening 121A, the convex bump 1223 is located in the static sealing opening 121A.

[0059] The sealing plate 122 is rotatably disposed on the main body 110 by means of a spring 129. In the present embodiment, the spring is a torsion spring. When the sealing device 100 is not inserted into an instrument, the sealing plate 122 tightly presses the static sealing opening 121A of the sealing sleeve 121 by means of 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 taken out of the sealing device 100, the sealing plate 122 seals the static sealing opening 121A again driven by the elastic restoring force of the spring.

[0060] In another embodiment, the sealing plate 122 is magnetically adsorbed on 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 material that can be magnetically adsorbed. When the surgical instrument is not inserted into the sealing device 100, the sealing plate 122 seals the instrument channel 101 through magnetic force. When the surgical instrument is inserted, the surgical instrument pushes the sealing plate 122 away.

[0061] The specification of the static sealing opening 121A is smaller than the specification of the opening of the instrument channel 101 on the static sealing portion 111, that is, the static sealing opening 121A covers the opening of the instrument channel 101 on the static sealing portion 111 along the periphery. This can further improve the sealing performance of the sealing device 100. A sealing flange 121B extends from the periphery of the static sealing opening 121A, which contacts the sealing plate 122. At this time, the sealing flange 121B matches the structure of the sealing plate 122.

[0062] In one embodiment, the static sealing portion 111 has a wedge-shaped end portion, and a positioning structure is provided on the wedge-shaped end portion to position the sealing sleeve 121 during installation. The positioning structure is a positioning hole 111A, and the sealing sleeve 121 includes a sleeve body and a positioning boss 121C for being received in the positioning hole 111A, and the positioning boss 121C is located on the inner side of the bottom of the sleeve body.

[0063] In one embodiment, the proximal end of the static sealing portion 111 has a mounting portion 111B, which is connected to the sealing sleeve 121 and is used to fix the sealing sleeve 121 to prevent it from falling off during operation. For example, the mounting portion has a groove structure, and the sealing sleeve 121 has a protrusion matching the groove and is accommodated in the mounting portion. For another example, the mounting portion is a snap-fit ​​structure, which is snap-fitted with the sealing sleeve 121 to prevent the sealing sleeve 121 from falling off.

[0064] In one embodiment, the sealing sleeve 121 is detachably disposed on the body 110 to facilitate replacement. In other embodiments, the sealing sleeve 121 may also be non-detachably disposed on the body 110.

[0065] When assembling the dynamic sealing structure 130 on the body 110, first place the sealing layer 131 on the dynamic sealing part 112, make the positioning column 113 of the dynamic sealing part 112 pass through the corresponding positioning hole 131D of the sealing layer 131, then align the receiving hole 1323 of the partition 132 with the corresponding positioning column 113, move the partition 132 toward the positioning column 113 so that the positioning column 113 is received in the corresponding receiving hole 1323, and then screw the locking ring 133 and the dynamic sealing part 112 together, so as to fix the partition 132 and the sealing layer 131 on the dynamic sealing part 112. At this point, the dynamic sealing structure 130 and the body 110 are assembled. At this point, the sealing layer 131 is located between the dynamic sealing part 112 and the partition 132, and the partition rib 132A of the partition 132 is located in the ring of the locking ring 133.

[0066] When assembling the sealing sleeve 121 on the static sealing part 111, the sealing plate 122 is opened, the sealing sleeve 121 is sleeved 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, and then the sealing plate 122 is in a natural state, and the sealing plate 122 seals the static sealing opening 121A driven by the elastic restoring force of the spring.

[0067] Put the assembled sealing device 100 into the receiving cavity 210 of the guide tube 200, align the first clamping protrusion 1163 and the two second clamping protrusions 1165 of the sealing device 100 with the first notch 2113 and the two second notches 2115 of the guide tube 200 respectively, move toward the guide tube 200 so that the first clamping protrusion 1163 and the two second clamping protrusions 1165 enter the clamping groove 211 from the first notch 2113 and the two second notches 2115 respectively, rotate the bee device 100 so that one of the second clamping protrusions 1165 abuts against the abutment 2119 located in the clamping groove 211, and the assembly is completed. At this time, the sealing ring 118 of the sealing device 100 abuts against the wall of the receiving cavity 210, which has the effect of sealing the receiving cavity 210.

[0068] See also Figure 12 to Figure 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 driven by the elastic restoring force of the spring.

[0069] In other embodiments, the sealing device 100 may also 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 is PEEK (polyetheretherketone) and the guide tube 200 is SUS304 (stainless steel).

[0070] 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 to achieve a better sealing effect.

[0071] See also Fig.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, so that it is more convenient 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 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; or, multiple sealing layers 131 are stacked and abut against each other.

[0072] like Fig.16 In the embodiment shown, two adjacent areas can also be sealed by multiple abutting grooves 131B and abutting rib structures. Specifically, multiple abutting grooves 131B are arranged in parallel and abut against the abutting ribs to enhance the sealing effect. It should be noted that the multiple abutting grooves can be arranged on the sealing layer 131, or partially on the sealing layer 131 and partially on the partition 132. Fig.17 , the sealing layer also has other structures.

[0073] 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 the supporting groove and the supporting rib. For example, the main body 110 is provided with a supporting groove, and the sealing layer 131 is provided with a corresponding supporting rib accommodated in the supporting groove. The partition 132 abuts the sealing layer 131, so that the sealing layer 131, the partition 132 and the main body 110 are tightly abutted, thereby sealing. For another example, the main body 110 is provided with a supporting rib, and the sealing layer 131 is provided with a supporting groove for accommodating the supporting rib.

[0074] Similar to the sealing method of the partition and the sealing layer 131 , the body 110 may also have a plurality of abutment grooves and / or abutment ribs in two adjacent areas of the sealing layer 131 to further strengthen the sealing, which will not be repeated here.

[0075] It should be noted that the sealing structures between the partition 132, the sealing layer 131 and the main body 110 may also only have a protruding structure without a matching groove structure, or only have 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 groove structure is filled by the sealing layer 131.

[0076] In one embodiment, the dynamic sealing portion 112 is provided with a receiving groove, and the sealing layer 131 is received in the receiving groove. When there are multiple sealing layers 131 and they are arranged in parallel, there are multiple receiving grooves corresponding to the multiple sealing layers 131, and receiving the corresponding sealing layers 131. In this embodiment, the depth of the receiving groove is equal to or less than the thickness of the sealing layer 131.

[0077] In order to more conveniently replace the sealing layer 131, Fig.18 In the illustrated embodiment, there is a gap between the edge of the sealing layer 131 and the side wall of the receiving groove, for example, the gap is 1 mm to 3 mm, so that the sealing layer 131 can be prevented from bulging when installing the sealing layer 131, thereby affecting the sealing effect.

[0078] See also Fig.19 In another embodiment, the sealing layer 131' is disposed 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 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 disposed 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.

[0079] 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 column, and the others are hole structures matched with the positioning column.

[0080] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0081] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A sealing device, characterized in that: include: A body having a dynamic sealing portion and a static sealing portion, wherein the body is provided with a plurality of instrument channels, and the instrument channels penetrate through the dynamic sealing portion and the static sealing portion; A dynamic sealing structure, the dynamic sealing structure comprising a sealing layer, a partition and a fixing portion, the sealing layer being arranged on the dynamic sealing portion, the sealing layer having a plurality of dynamic sealing openings, each of which corresponds to an instrument channel, the dynamic sealing opening being used to receive an instrument so that the edge of the dynamic sealing opening is in close contact with the instrument, the partition comprising a base, a plurality of partition ribs located on the base and connected to each other, the partition abutting against the sealing layer, the base being provided with a plurality of guide openings corresponding to the dynamic sealing openings for guiding the instrument, the fixing portion being used to be fixed to the dynamic sealing portion so that the sealing layer is fixed between the dynamic sealing portion and the partition; A static sealing structure, wherein the static sealing structure comprises a sealing sleeve and a sealing plate, wherein the sealing sleeve is sleeved with the static sealing portion, and the sealing sleeve has a plurality of static sealing openings corresponding to the plurality of instrument channels, the sealing plate is rotatably connected to the body and contacts the sealing sleeve to seal the static sealing openings, and the sealing plate is used to be pushed open by an instrument located in the instrument channel and separated from the sealing sleeve, so as to allow the instrument to pass through the static sealing openings; Wherein, the dynamic sealing part is sealed by a plurality of the sealing layers, and the plurality of the sealing layers are arranged in parallel and correspond to different instrument channels; The partition part and the sealing layer are sealed by a plurality of abutting grooves and abutting ribs. The plurality of abutting grooves are arranged in parallel and abut against the abutting ribs to enhance the sealing effect.

2. The sealing device according to claim 1, characterized in that: The fixing part is a locking ring, and the locking ring is used for locking with the dynamic sealing part.

3. The sealing device according to claim 1, characterized in that: The dynamic sealing portion includes a positioning portion, the sealing layer includes a corresponding positioning matching portion, and the partition portion includes a corresponding positioning adapting portion. The positioning portion, the positioning matching portion, and the positioning adapting portion are used to be assembled together.

4. The sealing device according to claim 3, characterized in that: The positioning portion is a positioning column, the positioning matching portion is a positioning hole, the positioning adapter portion is a receiving hole, and the positioning column is used to pass through the positioning hole and be received in the receiving hole.

5. The sealing device according to claim 3, characterized in that: One of the positioning portion, the positioning matching portion and the positioning adapter portion is a positioning column, and the others are hole structures matched with the positioning column.

6. The sealing device according to claim 1, characterized in that: One ends of the plurality of separation ribs are connected together, and the other ends are divergently spread out, and a height of the connected end of the separation ribs in the axial direction of the dynamic sealing opening is greater than a height of the other end of the separation rib in the direction.

7. The sealing device according to claim 1, characterized in that: The static sealing part has a wedge-shaped end with a positioning hole. The sealing sleeve includes a sleeve body sleeved on the static sealing part and a positioning boss accommodated in the positioning hole. The positioning boss is located on the inner side of the bottom of the sleeve body.

8. The sealing device according to claim 7, characterized in that: 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 moved out of the static sealing opening.

9. The sealing device according to claim 7, characterized in that: The main body also has a connecting portion connected between the dynamic sealing portion and the static sealing portion, the instrument channel also passes through the dynamic sealing portion and the connecting portion, and the main body also has a covering portion surrounding the connecting portion, the covering portion is provided with an installation groove and a sealing ring installed in the installation groove.

10. A puncture device, characterized in that: include: A sealing device, and a guide tube detachably connected to the sealing device, wherein the guide tube comprises a receiving cavity, a slot communicating with the receiving cavity, and a first notch communicating with the slot, and the sealing device comprises: 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 having a plurality of instrument channels, the instrument channels passing through the dynamic sealing portion, the connecting portion and 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 used to rotate after the first engaging protrusion enters the engaging groove from the first notch so as to engage the first engaging protrusion in the engaging groove; and A dynamic sealing structure, wherein the dynamic sealing structure comprises a sealing layer, a partition and a fixing portion, wherein the sealing layer is arranged on the dynamic sealing portion, the sealing layer has a plurality of dynamic sealing openings, each of which corresponds to an instrument channel, the dynamic sealing opening is used to receive an instrument so that the edge of the dynamic sealing opening is in close contact with the instrument, the partition comprises a base, a plurality of partition ribs located on the base and connected to each other, the partition abuts against the sealing layer, the base is provided with a plurality of guide openings corresponding to the dynamic sealing openings so as to guide the instrument, and the fixing portion is used to fix with the dynamic sealing portion so that the sealing layer is fixed between the dynamic sealing portion and the partition; A static sealing structure, wherein the static sealing structure comprises a sealing sleeve and a sealing plate, wherein the sealing sleeve is sleeved with the static sealing portion, and the sealing sleeve has a plurality of static sealing openings corresponding to the plurality of instrument channels, the sealing plate is rotatably connected to the body and contacts the sealing sleeve to seal the static sealing openings, and the sealing plate is used to be pushed open by an instrument located in the instrument channel and separated from the sealing sleeve, so as to allow the instrument to pass through the static sealing openings; Wherein, the dynamic sealing part is sealed by a plurality of the sealing layers, and the plurality of the sealing layers are arranged in parallel and correspond to different instrument channels; The partition part and the sealing layer are sealed by a plurality of abutting grooves and abutting ribs. The plurality of abutting grooves are arranged in parallel and abut against the abutting ribs to enhance the sealing effect.

11. The puncture device according to claim 10, characterized in that: The guide tube includes a mounting flange extending outward from the wall of the receiving cavity, a side portion connected to the mounting flange, and a folded edge extending inward from the side portion. The mounting flange, the side portion, and the folded edge surround the slot, and the first notch is provided on the folded edge.

12. The puncture device according to claim 11, characterized in that: The cover also includes a second locking protrusion extending outward from the cover body, the folded edge is also provided with a second notch corresponding to the second locking protrusion, 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 against the resisting portion.

13. The puncture device according to claim 10, characterized in that: The static sealing part has a wedge-shaped end with a positioning hole. The sealing sleeve includes a sleeve body sleeved on the static sealing part and a positioning boss accommodated in the positioning hole. The positioning boss is located on the inner side of the bottom of the sleeve body.

14. The puncture device according to claim 13, characterized in that: 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 moved out of the static sealing opening.

15. The puncture device according to claim 13, characterized in that: The main body also has a connecting portion connected between the dynamic sealing portion and the static sealing portion, the instrument channel also passes through the dynamic sealing portion and the connecting portion, and the main body also has a covering portion surrounding the connecting portion, the covering portion is provided with an installation groove and a sealing ring installed in the installation groove.

16. The puncture device according to claim 10, characterized in that: The fixing part is a locking ring, and the locking ring is used for locking with the dynamic sealing part.

17. The puncture device according to claim 10, characterized in that: The dynamic sealing portion includes a positioning portion, the sealing layer includes a corresponding positioning matching portion, and the partition portion includes a corresponding positioning adapting portion. The positioning portion, the positioning matching portion, and the positioning adapting portion are used to be assembled together.

18. The puncture device according to claim 17, characterized in that The positioning portion is a positioning column, the positioning matching portion is a positioning hole, the positioning adapter portion is a receiving hole, and the positioning column is used to pass through the positioning hole and be received in the receiving hole.

19. The puncture device according to claim 17, characterized in that: One of the positioning portion, the positioning matching portion and the positioning adapter portion is a positioning column, and the others are hole structures matched with the positioning column.

20. The puncture device according to claim 10, characterized in that One ends of the plurality of separation ribs are connected together, and the other ends are divergently spread out, and a height of the connected ends of the separation ribs in the axial direction of the dynamic sealing opening is greater than a height of the other ends of the separation ribs in the direction.

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