Combined puncture equipment for various puncture outfits

Abstract

The utility model relates to a combined puncture device for various puncture outfits, comprising an incision channel which is arranged to be of a height-adjustable cylindrical structure, and one end of the incision channel is connected with a wound; the positioning platform is arranged at the other end, away from the wound, of the incision channel, a plurality of through holes are formed in the positioning platform, and at least part of the through holes are different in hole diameter; the puncture assembly is detachably connected with the through hole and used for extending into the incision channel through the through hole. According to the technical scheme, the combined type puncture equipment can provide free combination of various puncture assemblies, so that the puncture assemblies of different models can be assembled with the incision channel through the positioning platform with the through holes of different apertures, the simultaneous use conditions of different surgical instruments are met, the surgical efficiency is optimized, the number of wounds of a patient is reduced, and the operation cost is reduced. The equipment is simple in overall structure, and the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of medical devices, in particular, to a combined puncture device for multiple puncture devices. BACKGROUND

[0002] Puncture devices are often used in laparoscopic and other endoscopic surgeries, which are used to establish a channel for endoscopes or other medical devices by puncturing a body cavity or tissue, so as to diagnose or treat the affected area. Common puncture device tube diameters are usually 3mm, 5mm, 10mm, 12mm and 15mm, which need to be combined according to different types of surgeries or actual conditions of the affected area.

[0003] In related technologies, multiple puncture devices of different specifications can be combined using one incision channel to reduce the number of incisions on the affected area. However, the puncture cannula of the existing puncture device is usually integrally arranged with the incision channel or a cover for sealing the incision channel, which cannot freely combine puncture devices of different specifications according to the actual needs of different surgeries, increases the burden of surgical preparation, reduces efficiency, and the cost of the integrated device is relatively high. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present disclosure is to provide a combined puncture device for multiple puncture devices to at least partially solve the problems existing in the above-mentioned related technologies.

[0005] In order to achieve the above-mentioned purpose, the present disclosure provides a combined puncture device for multiple puncture devices, which comprises: an incision channel arranged as a height-adjustable cylindrical structure, one end of the incision channel being connected with an incision; a positioning platform arranged at the other end of the incision channel away from the incision, a plurality of through holes being arranged on the positioning platform, and at least part of the through holes being arranged as different hole diameters; and a puncture assembly detachably connected with the through holes and used to extend into the inside of the incision channel through the through holes.

[0006] Optionally, the puncture assembly comprises: a puncture cannula, the inside of which is hollowly arranged, and the inside of the puncture cannula is arranged as a device channel, one end of the puncture cannula for connecting with the through hole is arranged with a limiting part for being at least partially arranged into the incision channel through the positioning platform, and the other end of the puncture cannula is arranged with an engaging part; and a puncture needle for being arranged into the puncture cannula through the engaging part to extend into the incision channel.

[0007] Optionally, the limiting part is arranged as annular protrusions arranged at intervals along the axial direction of the puncture cannula, each annular protrusion is arranged as a conical structure tapering away from the engaging part, which is used to be axially clamped with the edge of the through hole after the puncture cannula is arranged into the through hole, so as to stop the puncture cannula from being separated from the positioning platform.

[0008] Optionally, the joint comprises: a first air chamber arranged in the joint for connecting the inlet of the joint, the bottom of the first air chamber is provided with a first air valve; a second air chamber arranged in the first air chamber away from the inlet of the joint for connecting the first air chamber, the inside of the second air chamber is provided with a second air valve; a third air chamber arranged in the joint for connecting the second air chamber and the instrument channel; and a vent hole arranged in the side wall of the joint for connecting the third air chamber with the outside along the radial direction of the joint, the vent hole and the third air chamber are provided with a vent valve.

[0009] Optionally, the first air chamber is at least partially arranged as a columnar structure, and the first air chamber is arranged as a tapered surface structure near the inlet of the joint and the outlet connected with the second air chamber, respectively, and the first air valve is arranged at the outlet of the first air chamber; the second air chamber is arranged as an inverted bowl structure with the bowl opening facing the direction of the instrument channel, the bowl bottom of the second air chamber is communicated with the first air chamber, the bowl opening of the second air chamber is communicated with the third air chamber, and the second air valve is arranged at the bowl opening of the second air chamber.

[0010] Optionally, the vent hole is arranged to be communicated with the outside through a handle, the handle is arranged to be rotatable along the axial direction of the vent hole to drive the vent valve to open and close.

[0011] Optionally, the incision channel comprises: an outer clasp arranged at the inlet end of the incision channel for connecting with the positioning platform; an insertion ring arranged at the outlet end of the incision channel for inserting into the wound; and a protective sleeve arranged between the outer clasp and the insertion ring, both ends of the protective sleeve are connected with the outer clasp and the insertion ring to form a tubular structure, wherein the outer clasp is arranged as an elastic member, and the outer clasp is configured to be rolled up along the axial direction of the protective sleeve and to wind the protective sleeve on the outer clasp to adjust the length of the protective sleeve.

[0012] Optionally, the positioning platform comprises: a cover provided with a recess facing the direction of the incision channel, the inlet end of the incision channel away from the wound is arranged in the recess, and the cover is used for sealing the inlet end of the incision channel, wherein the through hole is arranged on the cover and is arranged at intervals along the circumferential direction on the circumferential surface of the cover, and the through hole is configured to be sealed by a film.

[0013] Optionally, the cover is provided with a cover side wall extending towards the direction of the incision channel, an end of the cover side wall is radially contracted to form an annular plate for stopping the outer snap ring inside the cover to fix the incision channel, wherein the cover side wall is recessed towards the inside of the notch of the cover, and the outer snap ring is configured to be connected with the cover side wall in shape fitting when placed in the cover.

[0014] Optionally, at least part of the through hole comprises: a first through hole for accommodating a puncture cannula with a tube diameter in the range of 3mm to 5mm; and a second through hole for accommodating a puncture cannula with a tube diameter in the range of 10mm to 15mm.

[0015] By the above technical solution, the combined puncture device can provide free combination of various puncture assemblies, so that puncture assemblies of different models can be assembled with the positioning platform and the incision channel having different aperture through holes, the simultaneous use of different surgical instruments is met, the surgical efficiency is optimized, the number of incisions of the patient is reduced, and the overall structure of the device is simple, and the use cost is reduced.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description section. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation on the present disclosure. In the drawings:

[0018] Figure 1 is a structural schematic diagram of a combined puncture device for various puncture devices according to an exemplary embodiment.

[0019] Figure 2 is a side sectional view of a combined puncture device for various puncture devices according to an exemplary embodiment.

[0020] Figure 3 is a structural schematic diagram of a puncture needle according to an exemplary embodiment. Figure 2 is an enlarged view of part A in FIG. 4.

[0021] Figure 4 is a structural schematic diagram of a cover according to an exemplary embodiment.

[0022] Figure 5 is a structural schematic diagram of a cover according to an exemplary embodiment.

[0023] Figure 6 is a structural schematic diagram of a cover according to an exemplary embodiment.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 1 -cutting channel, 11 -outer clasp, 12 -insert ring, 13 -protective sleeve, 2 -positioning platform, 21 -through hole, 211 -membrane, 212 -tube diameter identifier, 213 -first through hole, 214 -second through hole, 22 -cover, 221 -cover sidewall, 222 -annular plate, 3 -piercing assembly, 31 -piercing sleeve, 310 -instrument channel, 311 -limiting portion, 312 -joint portion, 3121 -first air chamber, 3122 -first air blocking valve, 3123 -second air chamber, 3124 -second air blocking valve, 3125 -third air chamber, 3126 -ventilation hole, 3127 -ventilation valve, 3128 -handle, 32 -piercing needle, 321 -needle body, 322 -grip end, 323 -head end. DETAILED DESCRIPTION

[0026] The specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0027] In the present disclosure, the orientation words such as "up, down, top, bottom" used herein generally refer to the up and down, top and bottom of the relevant components in actual use, and the up and down of the drawing plane and the height of the drawing plane are the up and down of the puncture device and the height direction of the puncture device. Figure 2 In addition, the terms "first", "second" and the like used in the present disclosure are used to distinguish one element from another element, and do not have sequential and important meanings.

[0028] With reference to Figures 1 to 6 , the present disclosure exemplarily provides a combined puncture device for various puncture devices. The puncture device comprises a cutting channel 1, a positioning platform 2 and a piercing assembly 3. The cutting channel 1 is provided as a height-adjustable cylindrical structure, one end of the cutting channel 1 can be connected with a wound, the positioning platform 2 is arranged at the other end of the cutting channel 1 away from the wound, a plurality of through holes 21 can be arranged on the positioning platform 2, and at least part of the through holes 21 can be arranged with different hole diameters, and the piercing assembly 3 is detachably connected with the through holes 21 and can be used to extend into the inside of the cutting channel 1 through the through holes 21.

[0029] In the above embodiments, the common puncture assembly 3 has multiple specifications of different tube diameters, which can be used to accommodate different surgical instruments (such as endoscopes, drainage tubes, catheters, scissors, forceps, etc.), and provide a channel for the surgical instruments to perform surgical operations in the wound. The combined puncture device provided by the present disclosure can establish a wound at the affected area through the incision channel 1, and then freely combine multiple puncture assemblies 3 with the positioning platform 2, and seal the other end of the incision channel 1 away from the wound, so that different surgical instruments can communicate with a single wound through multiple puncture assemblies 3, without the need to establish multiple wounds at the affected area, avoiding the interference of multiple wounds on the operation of different surgical instruments, reducing the wound area which is also conducive to the postoperative recovery of the patient, improving the surgical efficiency, and the overall structure of the device is simple, which can reduce the manufacturing and use cost of the puncture device.

[0030] In some embodiments, referring to Figures 1 to 3 , the puncture assembly 3 can include a puncture sleeve 31 and a puncture needle 32. The puncture sleeve 31 is hollow inside, and the inside of the puncture sleeve 31 can be provided as an instrument channel 310. One end of the puncture sleeve 31 for connecting with the through hole 21 can be provided with a limiting portion 311 for at least partially placing into the incision channel 1 through the positioning platform 2, and the other end of the puncture sleeve 31 can be provided with an engaging portion 312. The puncture needle 32 can be used to place into the puncture sleeve 31 through the engaging portion 312 to extend into the incision channel 1.

[0031] In the above embodiments, the instrument channel 310 of the puncture sleeve 31 can be used to provide the puncture needle 32 or other surgical instruments to enter the wound for surgical operation. The tubular portion of the lower part of the puncture sleeve 31 can be placed into the incision channel 1 through the through hole 21 of the positioning platform 2, and the circumferential outer surface of this part can be provided with a limiting portion 311 for forming a relative limiting with the through hole 21 when the puncture sleeve 31 is at least partially placed into the incision channel 1, so that the puncture sleeve 31 can be stopped by the through hole 21 at any position as needed, and the limiting portion 311 can move in the height direction relative to the through hole 21, thereby adjusting the length of the puncture sleeve 31 in the incision channel 1, facilitating the convenient operation of the puncture needle 32 or other surgical instruments.

[0032] It should be noted that the puncture needle 32 is a device for opening the incision channel 1 after being combined with the puncture cannula 31. When a surgical operation is needed, the puncture needle 32 can be used to puncture the sealing film 211 at the through hole 21, and then the puncture needle 32 is withdrawn, and then the surgical instrument to be used is inserted into the puncture cannula 31 to be placed in the wound. The film 211 here can be a sealing film commonly used in the art, which can meet the sealing requirement of the through hole 21, and the present disclosure does not make specific limitations thereon, and the film 211 can be arranged in the through hole 21 by using a hot melt welding process. The film structure described later in the disclosure can be made of the same material as the film 211, and will not be repeated here. In addition, the joint portion 312 of the puncture cannula 31 can be used to provide fixed engagement of the puncture needle 32 and other surgical instruments, so as to ensure the stability and precision of the surgical process.

[0033] In other embodiments, referring to Figure 4 , the puncture needle 32 can include a needle body 321, a holding end 322 and a head end 323. The holding end 322 and the head end 323 are respectively arranged at both ends of the needle body 321, the holding end 322 can be arranged as a pinecone structure to facilitate the holding and grasping of the operator, the holding end 322 can be hollowed out to reduce the overall weight of the puncture needle 32 while maintaining the integrity of the shape, facilitating the holding of the hand. The head end 323 can be arranged as a needle tip structure, and a blade structure can also be arranged on the head end 323 to quickly and completely break the film 211, and after breaking the film 211, the structure of the through hole 21 can be guaranteed to be intact, avoiding the influence of the broken film 211 adhering to the hole wall of the through hole 21 on the smooth passing of the puncture cannula 31.

[0034] For example, referring to Figures 1 to 4 , the limiting portion 311 can be arranged as annular protrusions arranged at intervals along the axial direction of the puncture cannula 31. Each annular protrusion can be arranged as a tapered structure tapering away from the joint portion 312, which can be used to abut with the edge of the through hole 21 in the axial direction after the puncture cannula 31 is placed in the through hole 21, so as to stop the disengagement of the puncture cannula 31 from the positioning platform 2.

[0035] In the above embodiment, the limiting portion 311 can be made of a flexible material, has a certain radial elasticity, and can form a seal between the limiting portion 311 and the through hole 21 after being inserted into the through hole 21. The taper structure of the limiting portion 311 is arranged to taper towards the wound direction, and the maximum circumferential diameter of the limiting portion 311 can be arranged to be slightly larger than the hole diameter of the through hole 21, and the minimum circumferential diameter can be arranged to be smaller than the hole diameter of the through hole 21, so that when the puncture cannula 31 is inserted, when the pushing pressure meets the radial contraction force of the limiting portion 311, the limiting portion 311 is squeezed in the radial direction by the through hole 21, at this time the taper structure of the limiting portion 311 can pass through the through hole 21, and the taper structure passing through the through hole 21 can be clamped in the axial direction below the through hole 21, and the relative clamping of the puncture cannula 31 and the through hole 21 can be achieved. When the puncture cannula 31 needs to be removed after the operation, the pulling force of the puncture cannula 31 can be increased to make the limiting portion 311 elastically deformable through the through hole 21, and then the puncture cannula 31 can be separated from the through hole 21, and the relative positioning platform 2 is freely combined, which is simple in structure, convenient to use, and convenient to replace the puncture assembly 3.

[0036] For example, with reference to Figure 2 and Figure 3 The joint portion 312 can include a first air chamber 3121, a second air chamber 3123, a third air chamber 3125, and a vent hole 3126. The first air chamber 3121 can be arranged in the joint portion 312 and connected to the inlet of the joint portion 312. The bottom of the first air chamber 3121 can be provided with a first air valve 3122. The second air chamber 3123 can be arranged in the direction away from the inlet of the joint portion 312 and connected to the first air chamber 3121. The inside of the second air chamber 3123 can be provided with a second air valve 3124. The third air chamber 3125 can be arranged in the joint portion 312 and connected to the second air chamber 3123 and the instrument channel 310. The vent hole 3126 can be arranged in the side wall of the joint portion 312 and connected to the outside in the radial direction of the joint portion 312. The vent hole 3126 can be provided with a vent valve 3127.

[0037] In the above embodiment, the joint 312 is hollow inside, and the first air chamber 3121, the second air chamber 3123 and the third air chamber 3125 can be arranged in sequence from top to bottom along the height direction of the combination. The first air chamber 3121 is used to connect the inlet of the joint 312, and the puncture needle 32 and other surgical instruments can first pass through the first air chamber 3121 and be inserted into the joint 312. The second air chamber 3123 is connected below the first air chamber 3121, and can communicate the first air chamber 3121 with the third air chamber 3125 below. The third air chamber 3125 can communicate with the instrument channel 310 below, so that the puncture needle 32 and other surgical instruments entering the first air chamber 3121 can enter the instrument channel 310 in sequence through the second air chamber 3123 and the third air chamber 3125.

[0038] It should be noted that the first air valve 3122 can be provided in a circular hole structure and can be provided at the bottom of the first air chamber 3121. When no surgical instrument is placed inside the joint 312, the first air chamber 3121 can be communicated with the second air chamber 3123 through the first air valve 3122. When the puncture needle 32 or other surgical instruments is placed in the first air chamber 3121, the instrument placed in the first air chamber 3121 can pass through the first air valve 3122 and tightly fit with the first air valve 3122 to close the first air chamber 3121, thereby closing the connection between the first air chamber 3121 and the second air chamber 3123 to isolate the air flow between the inside and the outside of the joint 312, and achieve the sealing effect.

[0039] The second air valve 3124 can be provided in a cross-shaped sealing cap structure and can be provided at the connection between the second air chamber 3123 and the third air chamber 3125. The second air valve 3124 is in a state of closing the interface between the second air chamber 3123 and the third air chamber 3125 when the joint 312 is not placed with the puncture needle 32 or other surgical instruments. When the puncture needle 32 or other surgical instruments is placed from the first air chamber 3121 to the second air chamber 3123, the second air valve 3124 is pushed open, allowing the built-in instrument to pass through the second air chamber 3123 and enter the instrument channel 310 through the third air chamber 3125. The second air valve 3124 can reseal the interface between the second air chamber 3123 and the third air chamber 3125 to form a sealed cavity when the puncture needle 32 or other surgical instruments is separated from the inside of the puncture cannula 31, so as to avoid the exposure of the affected area and the inside of the wound to the outside air, causing infection or pressure imbalance, and to ensure the safety of the patient's operation and the use of the equipment.

[0040] Meanwhile, the third air chamber 3125 is also provided with a vent hole 3126 in the radial direction, which can selectively communicate the third air chamber 3125 with the outside of the joint 312 through a vent valve 3127. When it is needed to inject gas into the wound to balance the pressure in the patient's body, or when it is needed to exhaust the smoke in the patient's body, the vent valve 3127 can be opened to communicate the third air chamber 3125 with the outside of the joint 312, and then the corresponding processing operation can be performed according to the actual operation condition.

[0041] For example, referring to Figure 2 and Figure 3 , the first air chamber 3121 can be at least partially provided in a columnar structure, and the inlet close to the joint 312 and the outlet connected with the second air chamber 3123 of the first air chamber 3121 can be respectively provided in a tapered surface structure gradually tapering toward the instrument channel 310, and the first air valve 3122 can be provided at the outlet of the first air chamber 3121. The second air chamber 3123 can be provided in an inverted bowl shape with the bowl opening facing the instrument channel 310, and the bowl bottom of the second air chamber 3123 can be in communication with the first air chamber 3121, and the bowl opening of the second air chamber 3123 can be in communication with the third air chamber 3125, and the second air valve 3124 can be provided at the bowl opening of the second air chamber 3123.

[0042] In the above embodiment, the top and bottom of the columnar portion of the first air chamber 3121 can be respectively provided in a shape gradually tapering downward, which is beneficial to the insertion of the puncture needle 32 or other surgical instruments into the puncture cannula 31. The second air chamber 3123 is provided in an inverted bowl shape, which is beneficial to forming a sealed cavity and giving sufficient flow buffer space to the internal gas. When the puncture needle 32 or other surgical instruments enters the second air chamber 3123 through the first air valve 3122 at the bottom of the first air chamber 3121, the connection between the first air chamber 3121 and the second air chamber 3123 can be blocked to isolate the inside of the joint 312 from the outside, at which time the instrument built in the joint 312 can continue to push open the second air valve 3124 to enter the third air chamber 3125 to realize the passage. Meanwhile, when the puncture needle 32 or other surgical instruments is withdrawn from the joint 312, the second air valve 3124 can be reset and close the interface between the second air chamber 3123 and the third air chamber 3125 to maintain the sealed state of the joint 312. By sequentially providing three air chambers and two air valves in the joint 312, the sealed nature of the joint 312 can be maintained during the entire operation, which not only guarantees sufficient flow buffer space for the internal gas, but also effectively ensures the air tightness of the joint 312 to maintain the debridement safety of the patient during the operation.

[0043] For example, referring to Figure 1 and Figure 2The vent hole 3126 can be arranged to communicate with the outside through a handle 3128, and the handle 3128 can be arranged to rotate along the axial direction of the vent hole 3126 to drive the vent valve 3127 to open and close. In this embodiment, the handle 3128 can be synchronously connected with the vent valve 3127, and rotating the handle 3128 can drive the vent valve 3127 to open and close to communicate or close the connection between the vent hole 3126 and the outside. It should be noted that, in order to facilitate the structural connection between the handle 3128 and the vent hole 3126, a hole can be formed in the side wall of the handle 3128, so that the vent hole 3126 can communicate with the outside along the radial direction of the vent hole 3126 through the opening in the side wall, which is beneficial to the normal use of the handle 3128 and does not hinder the flow of gas through the vent hole 3126, and is simple and convenient to use.

[0044] In some embodiments, with reference to Figure 2 , the incision channel 1 can include an outer clasp 11, an insertion ring 12, and a protective sleeve 13. The outer clasp 11 can be arranged at the inlet end of the incision channel 1 and used to connect with the positioning platform 2, the insertion ring 12 can be arranged at the outlet end of the incision channel 1 and used to be inserted into the wound, and the protective sleeve 13 can be arranged between the outer clasp 11 and the insertion ring 12. The two ends of the protective sleeve 13 can be connected with the outer clasp 11 and the insertion ring 12 respectively to form a tubular structure. The outer clasp 11 can be arranged as an elastic member, and the outer clasp 11 can be configured to roll up along the axial direction of the protective sleeve 13 and wind the protective sleeve 13 on the outer clasp 11 to adjust the length of the protective sleeve 13.

[0045] In the above embodiment, the two ends of the protective sleeve 13 can be connected with the outer clasp 11 and the insertion ring 12 respectively to form a tubular channel structure. The protective sleeve 13 can be made of a flexible film material and connected with the outer clasp 11 and the insertion ring 12 respectively by heat fusion welding to ensure the tightness and sealing performance of the connection between the protective sleeve 13 and the outer clasp 11 and the insertion ring 12, so as to prevent the outer clasp 11 and the insertion ring 12 from being separated from the ends of the protective sleeve 13 during use. The outer clasp 11 and the insertion ring 12 can both be arranged as elastic members, so that the insertion ring 12 can temporarily change shape, which is beneficial to being inserted into the wound by deformation and being expanded after being inserted into the wound to stably connect the protective sleeve 13 at the wound. At the same time, the outer clasp 11 arranged as an elastic member can roll up along the axial direction of the protective sleeve 13 and wind the protective sleeve 13 on the outer clasp 11 during rolling up, thereby adjusting the length of the protective sleeve 13. Specifically, the overall height of the puncture device can be adjusted in real time according to the actual operation situation, which is flexible and convenient to use.

[0046] For example, with reference to Figure 1 , Figure 2 , Figure 5 and Figure 6, the positioning platform 2 can comprise a cover 22, which can be provided with a notch facing the direction of the incision channel 1, and the entrance end of the incision channel 1 away from the wound can be arranged in the notch, and the cover 22 can be used to seal the entrance end of the incision channel 1. Among them, the through holes 21 can be arranged on the circumferential surface of the cover 22 along the circumferential direction of the cover 22, and the through holes 21 can be sealed by the film 211. In this embodiment, the outer clasp 11 can be placed in the notch of the cover 22 to be clamped inside the cover 22, and the through holes 21 of the cover 22 can be sealed by the film 211, so that the cover 22 as a whole can seal the entrance end of the incision channel 1 after being connected with the outer clasp 11, guaranteeing the airtightness before the puncture assembly 3 is inserted, effectively guaranteeing the safety of the patient's operation.

[0047] For example, with reference to Figure 1 , Figure 2 , Figure 5 and Figure 6 , the cover 22 can be provided with a cover side wall 221 extending in the direction of the incision channel 1, and the end of the cover side wall 221 can be radially contracted along the cover 22 to form an annular plate 222 for stopping the outer clasp 11 inside the cover 22 to fix the incision channel 1, wherein the cover side wall 221 can be arranged to be recessed inwardly of the notch of the cover 22, and the outer clasp 11 can be configured to be connected with the cover side wall 221 in shape when placed in the cover 22. In this embodiment, the end of the cover side wall 221 can be radially contracted along the cover 22 to form an annular plate 222 capable of clamping the outer clasp 11, and when the outer clasp 11 is placed in the notch of the cover 22, it can be limited in the axial direction by the annular plate 222, so as to be able to fix the incision channel 1 as a whole in the cover 22. At the same time, the cover side wall 221 can be arranged to be recessed inwardly of the notch, and the outer clasp 11 can be connected with the outer clasp 11 in shape when placed in the notch, so that the annular plate 222 can position the outer clasp 11 in the cover 22 in shape, and the recessed middle part of the cover side wall 221 can prevent the outer clasp 11 from shaking in the axial direction of the incision channel 1, improve the stability of the equipment, and prevent the cover 22 from being separated from the incision channel 1 during use.

[0048] In other embodiments, the outer clasp 11 can be arranged in a cross-section in the shape of a gourd, so as to be limited in the notch in shape when placed in the notch of the cover 22, avoid the outer clasp 11 from shaking or being separated from the cover 22, and guarantee the stable connection of the cover 22 with the incision channel 1.

[0049] For example, with reference to Figure 5At least part of the through hole 21 can include a first through hole 213 and a second through hole 214. The first through hole 213 can be a relatively small hole for accommodating the puncture cannula 31 with a tube diameter in the range of 3mm to 5mm, and the second through hole 214 can be a relatively large hole for accommodating the puncture cannula 31 with a tube diameter in the range of 10mm to 15mm, so that the first through hole 213 can accommodate the puncture cannula 31 with standard tube diameters of 3mm and 5mm and the puncture cannula 31 with a special standard tube diameter between 3mm and 5mm. At the same time, the second through hole 214 can accommodate the puncture cannula 31 with standard tube diameters of 10mm, 12mm and 15mm, and can also accommodate the puncture cannula 31 with a special standard tube diameter between 10mm and 15mm, thereby ensuring that the positioning platform 2 can provide a free combination installation platform for puncture assemblies 3 with various standard tube diameters, having high degree of freedom and use flexibility, and the overall structure of the equipment is simple and convenient to use.

[0050] The preferred embodiments of the present disclosure are described in detail above in combination with the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within the technical concept range of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection range of the present disclosure.

[0051] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the present disclosure.

[0052] Furthermore, various different embodiments of the present disclosure can also be combined in any manner, as long as they do not deviate from the idea of the present disclosure, and they should also be considered as disclosed by the present disclosure.

Claims

1. A combined puncture device for a plurality of puncture devices, characterized by, The application relates to a puncture assembly for a wound channel. The puncture assembly (3) comprises: a puncture sleeve (31) which is internally hollow and has an instrument channel (310) in the interior, and one end of the puncture sleeve (31) is provided with a limiting part (311) for being at least partially inserted into the wound channel (1) through the positioning platform (2), and the other end of the puncture sleeve (31) is provided with an engaging part (312); and a puncture needle (32) which is inserted into the puncture sleeve (31) through the engaging part (312) to extend into the wound channel (1).

2. The combination lancing device of claim 1, wherein, The limiting part (311) is arranged as annular protrusions which are spaced apart along the axial direction of the puncture sleeve (31), each annular protrusion is arranged as a tapered structure which is tapered towards the direction away from the engaging part (312), and is used for being axially clamped with the edge of the through hole (21) after the puncture sleeve (31) is inserted into the through hole (21) to stop the puncture sleeve (31) from being separated from the positioning platform (2). The engaging part (312) comprises: a first air chamber (3121) which is arranged in the engaging part (312) and is used for connecting the inlet of the engaging part (312), and the bottom of the first air chamber (3121) is provided with a first air valve (3122); 3. The combination lancing device of claim 2, wherein, a second air chamber (3123) which is arranged in the direction away from the inlet of the engaging part (312) of the first air chamber (3121) and is used for connecting the first air chamber (3121), and the interior of the second air chamber (3123) is provided with a second air valve (3124); 4. The combination lancing device of claim 3, wherein, a third air chamber (3125) which is arranged in the engaging part (312) and is used for connecting the second air chamber (3123) and the instrument channel (310); and an air vent (3126) which is arranged in the side wall of the engaging part (312) and is used for connecting the third air chamber (3125) with the outside along the radial direction of the engaging part (312), and the air vent (3126) and the third air chamber (3125) are provided with an air valve (3127) therebetween. The first air chamber (3121) is at least partially arranged as a columnar structure, and the first air chamber (3121) is arranged as a tapered surface structure which is tapered towards the instrument channel (310) at the inlet of the engaging part (312) and the outlet connected with the second air chamber (3123), and the first air valve (3122) is arranged at the outlet of the first air chamber (3121); ​ ​ 5. The combination lancing device of claim 4, wherein, ​ The second air chamber (3123) is arranged as an inverted bowl structure with the bowl opening facing the direction of the instrument channel (310), the bowl bottom of the second air chamber (3123) is communicated with the first air chamber (3121), the bowl opening of the second air chamber (3123) is communicated with the third air chamber (3125), and the second air valve (3124) is arranged at the bowl opening of the second air chamber (3123).

6. The combination lancing device of claim 4, wherein, The vent hole (3126) is arranged to be communicated with the outside through a handle (3128), the handle (3128) is arranged to be rotatable along the axial direction of the vent hole (3126) to drive the vent valve (3127) to open and close.

7. The combination lancing device of claim 1, wherein, The incision channel (1) comprises: an outer clamping ring (11) arranged at the inlet end of the incision channel (1) and used to connect with the positioning platform (2); a placement ring (12) arranged at the outlet end of the incision channel (1) and used to be placed into the wound; and a protective sleeve (13) arranged between the outer clamping ring (11) and the placement ring (12), both ends of the protective sleeve (13) are connected with the outer clamping ring (11) and the placement ring (12) respectively to form a tubular structure, wherein the outer clamping ring (11) is arranged as an elastic member, and the outer clamping ring (11) is configured to be rolled up along the axial direction of the protective sleeve (13) and to make the protective sleeve (13) be wound on the outer clamping ring (11) to adjust the length of the protective sleeve (13).

8. The combination lancing device of claim 7, wherein, The positioning platform (2) comprises: a cover (22) provided with a recess facing the direction of the incision channel (1), the inlet end of the incision channel (1) away from the wound is arranged in the recess, and the cover (22) is used to seal the inlet end of the incision channel (1), wherein the through hole (21) is arranged on the cover (22) and is arranged at intervals in the circumferential direction on the circumferential surface of the cover (22), and the through hole (21) is configured to be sealed by a film (211).

9. The combination lancing device of claim 8, wherein, The cover (22) is provided with a cover side wall (221) extending in the direction of the incision channel (1), the end of the cover side wall (221) is contracted in the radial direction of the cover (22) to form an annular plate (222) for stopping the outer clamping ring (11) in the interior of the cover (22) to fix the incision channel (1), wherein the cover side wall (221) is arranged to be recessed in the interior of the recess of the cover (22) in the middle part, and the outer clamping ring (11) is configured to be connected with the cover side wall (221) in shape fitting when being placed in the cover (22).

10. The combination lancing device of claim 9, wherein, At least part of the through hole (21) comprises: a first through hole (213) for accommodating a puncture sleeve (31) with a tube diameter in the range of 3mm to 5mm; and a second through hole (214) for accommodating a puncture sleeve (31) with a tube diameter in the range of 10mm to 15mm.

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