High-sealing puncture outfit

Abstract

The high-sealing puncture outfit comprises a sleeve and a sealing cover, the sleeve comprises a slender tube and a shell connected with the slender tube, a rotary clamping groove is formed in the outer edge of the top end of the shell, the sealing cover comprises an upper cover, a lower cover and an integrated film arranged between the upper cover and the lower cover, and a step part matched with the rotary clamping groove is arranged on the inner edge of the bottom end of the lower cover. The upper cover is provided with a sleeve, so that the lower cover is in locking fit with the sleeve, an abutting rib used for abutting against the upper surface of the integrated film is arranged in the middle of the upper cover, the upper cover is further provided with a first pressing rib, and the lower cover is provided with a second pressing rib matched with the first pressing rib, so that the upper cover and the lower cover press the integrated film from the upper direction and the lower direction respectively. By means of the mode, an original spring structure is omitted, the risk that a spring is disengaged can be avoided, only one integrated film is arranged, cost is reduced, and puncture force and insertion and extraction force are reduced; meanwhile, the situation that a wave ring in an original puncture outfit is brought out or a valve of a sealing cap is turned outwards to cause sealing failure is prevented, and the efficient sealing effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of puncture devices, in particular to a high-sealing puncture device. Background Art

[0002] The disposable abdominal puncture device is a supporting surgical instrument for endoscopes (laparoscopy or thoracoscopic surgery). Its intended use is to puncture human tissues and establish and maintain a working channel for surgery during endoscopic (laparoscopic or thoracoscopic) surgery.

[0003] Sealing is the key performance of the trocar. A well-designed trocar can ensure airtightness and good surgical results.

[0004] At present, the existing puncture sleeves of the puncture device all rely on the hole-axis matching to ensure cold-pressed airtightness, and the matching needs to rely on the spring to press down for sealing. However, this hole-axis matching puncture structure has the risk of the sealing cover and the sleeve spring coming out, resulting in sealing failure. In addition, the sealing cover of the existing puncture device has sealing-related parts such as a corrugated ring and a sealing cap valve, so when the assembly is pulled out of the puncture device, there is a risk of breaking these parts, resulting in poor subsequent airtightness. Utility Model Content

[0005] The main technical problem solved by the present invention is to provide a high-seal puncture device, which eliminates the spring structure in the original puncture device, sets a rotating slot on the outer edge of the top of the shell of the puncture device, and eliminates the wave cover, valve and other structures in the sealing cover of the puncture device, and only sets an integrated membrane between the upper cover and the lower cover of the sealing cover. The beneficial effects of the present invention are as follows: (1) multiple parts such as the spring, wave cover, sealing cap, sealing cap valve and the like are eliminated, thereby reducing the cost; (2) the risk of the spring jumping out during the use of the original puncture device is avoided, and the safety is improved; (3) the integrated membrane replaces multiple parts such as the wave cover, sealing cap, sealing cap valve and the like in the original puncture device, thereby minimizing the insertion and removal force during the use of the puncture device, preventing the wave ring in the original puncture device from being brought out when the puncture device is pulled out or the sealing cap valve from turning outward, thereby causing the sealing to fail, thereby ensuring an efficient sealing effect.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is to provide a high-seal puncture device, characterized in that it includes: a sleeve and a sealing cover matched with the sleeve,

[0007] The sealing cover comprises an upper cover and a lower cover connected to each other, the sleeve comprises a slender tube extending to the distal end and a shell connected to the slender tube, the outer edge of the top end of the shell has a rotation slot, and the inner edge of the bottom end of the lower cover has a step portion that matches the rotation slot, so that the lower cover and the sleeve are locked and matched.

[0008] The sealing cover also includes an integrated membrane clamped between the upper cover and the lower cover, the integrated membrane includes a membrane body and an embedded ring, the membrane body has a sealing hole in the center, the embedded ring surrounds the circumferential edge of the membrane body, and the integrated membrane is pressed between the upper cover and the lower cover to achieve a sealed connection between the upper cover and the lower cover.

[0009] In a preferred embodiment of the present invention, the upper cover and the lower cover are connected by interference fit, ultrasonic welding or snap connection.

[0010] In a preferred embodiment of the utility model, the rotating slots are provided at least two locations, which are evenly spaced circumferentially on the outer edge of the top of the shell; the step portions are provided at least two locations, which are evenly spaced circumferentially on the inner edge of the bottom end of the lower cover.

[0011] In a preferred embodiment of the utility model, the upper cover is provided with abutting ribs in the middle position for abutting against the upper surface of the integrated membrane, the upper cover is also provided with a first pressing rib, and the lower cover is provided with a second pressing rib cooperating with the first pressing rib, so that the upper cover and the lower cover press the integrated membrane from the upper and lower directions respectively. In a preferred embodiment of the utility model, the upper cover includes a conical opening and an annular opening extending from the top to the bottom, and the conical wall portion of the conical opening and the circumferential wall portion of the annular opening together form abutting ribs for abutting against the upper surface of the integrated membrane.

[0012] In a preferred embodiment of the utility model, the inner cavity of the upper cover has a first annular pressure ring near the edge, and the circumferential wall of the first pressure ring forms a first compression rib for compressing the integrated membrane from the top.

[0013] In a preferred embodiment of the utility model, the lower cover includes an inner ring wall plate, an outer ring wall plate and a lower cover body formed between the inner ring wall plate and the outer ring wall plate, and the upper end surface of the outer ring wall plate is provided with a second pressure ring arranged in an annular manner, and the circumferential wall portion of the second pressure ring forms a second compression rib for compressing the integrated membrane from the bottom.

[0014] In a preferred embodiment of the utility model, an annular boss protruding from the surface of the lower cover body is arranged between the inner ring wall plate and the second pressure ring, and the circumferential outer wall of the outer ring wall plate has uniformly arranged anti-slip protrusions.

[0015] In a preferred embodiment of the utility model, the embedded ring is configured to be installed in the accommodating space between the annular boss of the lower cover and the second pressure ring, the abutment ribs and the first compression ribs press the upper surface of the membrane body, and the second compression ribs press the lower surface of the membrane body.

[0016] In a preferred embodiment of the present invention, the integrated membrane is an elastic integrated membrane, the material of the elastic integrated membrane is silicone or rubber, and the thickness of the integrated membrane is 0.8-2.0 mm.

[0017] In a preferred embodiment of the present invention, the surface of the integrated film has a friction portion arranged in a concave-convex shape, and the structure of the friction portion is a stripe structure, a convex point structure or a frosted structure.

[0018] The beneficial effects of the utility model are:

[0019] The sealing cover and the sleeve press the cross cap tightly by means of a snap-fitting manner, thereby eliminating the original spring structure, avoiding the risk of the spring coming out, and ensuring good sealing performance; only one integrated membrane is arranged in the sealing cover, which reduces the cost and also reduces the puncture force and the insertion and removal force; the sealing upper cover is provided with abutment ribs that tightly press against the integrated membrane, which can prevent the wave ring in the original puncture device from being brought out when the puncture device is pulled out, or the sealing cap valve from turning outward, thereby causing sealing failure; at the same time, compression ribs are arranged on both the upper cover and the lower cover, which can ensure that the integrated membrane is tightly pressed from the upper and lower directions respectively, thereby ensuring an efficient sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0021] Figure 1 This is a schematic structural diagram of a preferred embodiment of the high-seal puncture device of the utility model;

[0022] Figure 2 This is a cross-sectional view of a preferred embodiment of the high-seal puncture device of the utility model;

[0023] Figure 3 This is a schematic structural diagram of a preferred embodiment of the high-seal puncture tube of the utility model;

[0024] Figure 4 This is a structural schematic diagram of a preferred embodiment of the high-seal puncture device sealing cover of the utility model;

[0025] Figure 5 This is a cross-sectional view of a preferred embodiment of the sealing cover of the high-seal puncture device of the utility model;

[0026] Figure 6 This is a schematic structural diagram of a preferred embodiment of the upper cover of the high-seal puncture device of the utility model;

[0027] Figure 7 This is a structural schematic diagram of another preferred embodiment of the upper cover of the high-seal puncture device of the utility model;

[0028] Figure 8 This is a schematic structural diagram of a preferred embodiment of the lower cover of the high-seal puncture device of the utility model;

[0029] Fig. 9 This is a structural schematic diagram of another preferred embodiment of the lower cover of the high-seal puncture device of the utility model;

[0030] Fig.10 This is a schematic structural diagram of a preferred embodiment of the high-seal puncture device integrated membrane of the utility model;

[0031] Fig.11 This is a schematic structural diagram of another preferred embodiment of the high-seal puncture device integrated membrane of the utility model;

[0032] The markings of the components in the accompanying drawings are as follows:

[0033] 100, sleeve, 110, slender tube, 120, housing, 121, rotating slot,

[0034] 200, sealing cover, 210, upper cover, 211, abutting ribs, 212, first pressing ribs, 213, conical opening, 214, annular opening, 215, first pressing ring, 220, lower cover, 221, step portion, 222, second pressing ribs, 223, inner ring wall plate, 224, outer ring wall plate, 225, lower cover body, 226, second pressing ring, 227, annular boss, 228, anti-slip protrusion, 229, accommodating space,

[0035] 230. Integrated membrane, 231. Membrane body, 232. Embedded ring, 233. Sealing hole. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] The utility model relates to a preferred embodiment of a high-sealing puncture device.

[0039] See also Figure 1-2 The high-seal puncture device includes a sleeve 100 and a sealing cover 200 that cooperates with the sleeve 100. The sealing cover 200 is locked and connected to the sleeve 100 in a snap-fit ​​manner.

[0040] The puncture device of the utility model has a double sealing structure:

[0041] The first sealing structure is to set a cross cap 300 between the sealing cover 200 and the sleeve 100. The sealing cover 200 and the sleeve 100 can compress the cross cap 300 by snap-fitting, thereby canceling the original spring locking structure, avoiding the risk of spring coming out, and ensuring good sealing performance;

[0042] The second sealing structure is to set only one integrated membrane 230 between the upper cover 210 and the lower cover 220 of the sealing cover 200, which reduces the cost and also reduces the puncture force and the insertion and extraction force.

[0043] Specifically:

[0044] See also Figure 3 The sleeve 100 includes a slender tube 110 extending toward the distal end and a shell 120 connected to the slender tube 110 , and a rotation slot 121 is provided on the outer edge of the top end of the shell 120 .

[0045] See also Figure 4-5 The sealing cover 200 includes an upper cover 210 and a lower cover 220 connected to the upper cover 210. The inner edge of the bottom end of the lower cover 220 has a step portion 221 that cooperates with the rotating slot 121, so that the lower cover 220 and the sleeve 100 are locked and matched, and the function is to press the cross cap 300 to achieve sealing performance.

[0046] Furthermore, the rotating slots 121 are provided at least two locations, which are evenly spaced circumferentially on the outer edge of the top of the shell 120; the step portions 221 are provided at least two locations, which are evenly spaced circumferentially on the inner edge of the bottom of the lower cover 220.

[0047] The sealing cover 200 further includes an integrated film 230 clamped between the upper cover 210 and the lower cover 220 . The integrated film 230 is compressed between the upper cover 210 and the lower cover 220 to achieve a sealed connection between the upper cover 210 and the lower cover 220 .

[0048] There are many ways to fix the upper cover 210 and the lower cover 220, such as interference fit, ultrasonic welding, adhesive bonding, snap-fit ​​fixing, etc.

[0049] The connection method shown in this embodiment is that the upper cover 210 and the lower cover 220 are fixed by ultrasonic welding. This fixation allows the integrated film 230 to have a better sealing and compression state.

[0050] In the utility model, the middle position of the upper cover 210 has an abutment rib 211 for abutting the upper surface of the integrated membrane. The upper cover 210 is also provided with a first clamping rib 212, and the lower cover 220 is provided with a second clamping rib 222 cooperating with the first clamping rib 212, so that the upper cover 210 and the lower cover 220 press the integrated membrane 230 from the upper and lower directions respectively.

[0051] Figure 6 and Figure 7 The schematic diagrams are the structural diagrams from two perspectives of the upper end surface and the lower end surface of the upper cover 210:

[0052] The upper cover 210 includes a conical opening 213 and an annular opening 214 extending from the top to the bottom. The conical wall of the conical opening 213 and the circumferential wall of the annular opening 214 together form abutment ribs 211 for abutting against the upper surface of the integrated membrane 230. The setting of the abutment ribs 211 can tightly abut against the integrated membrane 230 to improve the sealing performance of the puncture device.

[0053] The upper cover 210 has an annular first pressing ring 215 near the edge of the inner cavity. The circumferential wall of the first pressing ring 215 forms a first pressing rib 212 that presses the integrated membrane 230 from the top.

[0054] Figure 8 and Fig. 9 The schematic diagrams are the structural diagrams from two perspectives of the upper end face and the lower end face of the lower cover 220:

[0055] The lower cover 220 includes an inner ring wall plate 223, an outer ring wall plate 224 and a lower cover body 225 formed between the inner ring wall plate 223 and the outer ring wall plate 224. The upper end surface of the outer ring wall plate 224 is provided with a second pressure ring 226 arranged in an annular manner. The circumferential wall portion of the second pressure ring 226 forms a second compression rib 222 for compressing the integrated membrane 230 from the bottom. The second compression rib 222 cooperates with the first compression rib 212 to tightly press the integrated membrane, thereby achieving a sealing effect.

[0056] Furthermore, an annular boss 227 protruding from the surface of the lower cover body is arranged between the inner ring wall plate 223 and the second pressure ring 226, and the circumferential outer wall of the outer ring wall plate 224 has evenly distributed anti-slip protrusions 228, which can ensure that the sleeve and the sealing cover are well fixed and prevent the sleeve and the sealing cover from sliding and loosening when the puncture device is inserted and exited.

[0057] Fig.10 and Fig.11The schematic diagrams are the structural diagrams of the upper and lower end surfaces of the integrated membrane 230 from two perspectives:

[0058] The integrated membrane 230 includes a membrane body 231 and an embedded ring 232 . The membrane body 231 has a sealing hole 233 at its center to ensure smooth use of the puncture device. The embedded ring 232 surrounds the circumferential edge of the membrane body 231 .

[0059] The embedded ring 232 is configured to be installed in the accommodating space 229 between the annular boss 227 of the lower cover 220 and the second pressure ring 226, which can initially ensure good positioning and installation of the integrated membrane 230, and then press the integrated membrane 230 through the first clamping rib 212 of the upper cover 210 and the second clamping rib 222 of the lower cover 220 to achieve a sealing effect, and abut the integrated membrane 230 through the abutting rib 211, thereby ensuring efficient sealing.

[0060] Furthermore, the abutting rib 211 and the first pressing rib 212 press the upper surface of the membrane body 231 , and the second pressing rib 222 presses the lower surface of the membrane body 231 to ensure that the integrated membrane is tightly clamped between the upper cover 210 and the lower cover 220 .

[0061] The integrated membrane 230 is an elastic integrated membrane, the material of the elastic integrated membrane is silicone or rubber, and the thickness of the integrated membrane 230 is 0.8-2.0 mm.

[0062] The surface of the integrated film 230 can be configured to have a friction portion arranged in a concave-convex shape, and the structure of the friction portion is a stripe structure, a convex point structure or a frosted structure. The arrangement of such a friction portion has the effect of enhancing friction, can prevent the integrated film from sliding off, and ensure a good sealing effect between the upper cover and the lower cover.

[0063] The beneficial effects of the high-seal puncture device of the utility model are:

[0064] Eliminate the spring, wave cover, sealing cap, sealing cap valve and other parts, reducing costs;

[0065] Avoid the risk of the spring jumping out during the use of the original puncture device, and improve safety;

[0066] The integrated membrane replaces multiple components of the original puncture device, such as the wave cover, sealing cap, and sealing cap valve, thereby minimizing the insertion and removal force of the puncture device during use, preventing the wave ring in the original puncture device from being pulled out or the sealing cap valve from turning outward, thereby causing sealing failure, thereby ensuring an efficient sealing effect.

[0067] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-seal puncture device, characterized in that: It comprises: a sleeve and a sealing cover matched with the sleeve, The sealing cover comprises an upper cover and a lower cover connected to each other, the sleeve comprises a slender tube extending to the distal end and a shell connected to the slender tube, the outer edge of the top end of the shell has a rotation slot, and the inner edge of the bottom end of the lower cover has a step portion that matches the rotation slot, so that the lower cover and the sleeve are locked and matched. The sealing cover also includes an integrated membrane clamped between the upper cover and the lower cover, the integrated membrane includes a membrane body and an embedded ring, the membrane body has a sealing hole in the center, the embedded ring surrounds the circumferential edge of the membrane body, and the integrated membrane is pressed between the upper cover and the lower cover to achieve a sealed connection between the upper cover and the lower cover.

2. The high-seal puncture device according to claim 1, characterized in that: The upper cover and the lower cover are connected by interference fit, ultrasonic welding or clamping.

3. The high-seal puncture device according to claim 1, characterized in that: The rotating slots are provided at least two locations, which are evenly spaced circumferentially at the outer edge of the top of the shell; the step portions are provided at least two locations, which are evenly spaced circumferentially at the inner edge of the bottom of the lower cover.

4. The high-seal puncture device according to claim 1, characterized in that: The upper cover is provided with abutting ribs in the middle position for abutting the upper surface of the integrated membrane, the upper cover is also provided with a first pressing rib, and the lower cover is provided with a second pressing rib cooperating with the first pressing rib, so that the upper cover and the lower cover press the integrated membrane from the upper and lower directions respectively.

5. The high-seal puncture device according to claim 4, characterized in that: The upper cover includes a conical opening and an annular opening extending from the top end to the bottom end. The conical wall of the conical opening and the circumferential wall of the annular opening together form abutment ribs for abutting the upper surface of the integrated membrane.

6. The high-seal puncture device according to claim 4, characterized in that: The inner cavity of the upper cover is provided with a first pressure ring arranged in an annular manner near the edge, and the circumferential wall of the first pressure ring forms a first compression rib for compressing the integrated membrane from the top.

7. The high-seal puncture device according to claim 6, characterized in that: The lower cover includes an inner ring wall plate, an outer ring wall plate and a lower cover body formed between the inner ring wall plate and the outer ring wall plate. The upper end surface of the outer ring wall plate is provided with a second pressure ring arranged in an annular manner. The circumferential wall portion of the second pressure ring forms a second compression rib for compressing the integrated membrane from the bottom.

8. The high-seal puncture device according to claim 7, characterized in that: An annular boss protruding from the surface of the lower cover body is arranged between the inner ring wall plate and the second pressure ring, and the circumferential outer wall of the outer ring wall plate has uniformly arranged anti-slip protrusions.

9. The high-seal puncture device according to claim 8, characterized in that: The embedded ring is arranged to be installed in the accommodation space between the annular boss of the lower cover and the second pressure ring, the abutting rib and the first pressing rib press the upper surface of the membrane body, and the second pressing rib presses the lower surface of the membrane body.

10. The high-seal puncture device according to claim 1, characterized in that: The integrated membrane is an elastic integrated membrane, the material of the elastic integrated membrane is silicone or rubber, and the thickness of the integrated membrane is 0.8-2.0 mm.

11. The high-seal puncture device according to claim 10, characterized in that: The surface of the integrated film has a friction portion arranged in a concave-convex shape, and the structure of the friction portion is a stripe structure, a convex point structure or a frosted structure.

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