Puncture outfit

Abstract

The utility model relates to the technical field of puncture outfits, in particular to a puncture outfit which comprises an outer shell, a puncture hole is formed in the outer shell, a sealing ring is arranged in the outer shell, a via hole is formed in the sealing ring, the via hole corresponds to the puncture hole, the puncture outfit further comprises a protection assembly, and the protection assembly is fixedly installed in the outer shell. When the puncture outfit is used, the protection assembly is installed on the outer shell, the protection assembly does not cause the leakage phenomenon of the sealing ring along with shaking of an instrument, the sealing stability is good, meanwhile, the sealing ring and the protection assembly are installed in a split mode, and therefore the puncture outfit is convenient to use. The structure of the sealing ring is reduced, the structure is simple, the assembling difficulty is reduced, the sealing ring is convenient to assemble, and the mounting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a puncture device, in the technical field, and in particular to a puncture device. Background Art

[0002] The trocar is widely used in laparoscopic surgery. The trocar can establish a channel for surgical instruments to enter the abdominal cavity. To facilitate the operation, the instrument inflates the abdominal cavity with gas through the trocar to form a cavity in the abdominal cavity. The trocar mainly includes an outer shell, and a sealing component is fixedly connected to the outer shell. The sealing component includes a sealing ring, a protective sheet and a fixing part. A puncture hole for the instrument to pass through is provided in the middle of the sealing ring. The protective sheet is installed on the sealing ring through the fixing part so that the two are formed in one piece. The existing one-piece sealing component will drive the protective sheet to move together due to the insertion of the instrument. Multiple insertions of the instrument will drive the protective sheet and pull the sealing ring, which will cause leakage in the sealing component, resulting in sealing failure. At the same time, since the sealing ring is an elastic part, it is cumbersome to install between the fixing part, the protective sheet and the sealing ring, which reduces the pressing efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in order to solve the problem that the existing one-piece sealing assembly will cause the protective sheet to move together due to the insertion of the instrument, and multiple insertions of the instrument will drive the protective sheet and pull the sealing ring, causing leakage in the sealing assembly, resulting in sealing failure. At the same time, since the sealing ring is an elastic part, it is cumbersome to install between the fixing part, the protective sheet and the sealing ring, which reduces the pressing efficiency. A puncture device is now provided.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a puncture device, including an outer shell, a puncture hole is arranged on the outer shell, a sealing ring is arranged in the outer shell, a through hole is arranged on the sealing ring, and the through hole is arranged corresponding to the puncture hole, and also includes a protective component, the protective component is fixedly installed in the outer shell, and the protective component is located between the sealing ring and the outer shell. Compared with the prior art, the present solution installs the protective component on the outer shell, so that the protective component will not cause leakage of the sealing ring due to the shaking of the instrument, and the sealing stability is good. At the same time, the sealing ring and the protective component are installed separately, which reduces the structure of the sealing ring, has a simple structure, reduces the difficulty of assembly, facilitates the assembly of the sealing ring, and improves the installation efficiency.

[0005] In order to realize the protection assembly, some preferred embodiments include a plurality of protection sheet groups, which are arranged interlaced along the circumference of the puncture hole, one end of the plurality of protection sheet groups is fixed to the outer shell, and the other end of the plurality of protection sheet groups is arranged to be gradually inclined downward from the outside to the inside along the radial direction of the puncture hole. The protection assembly is formed by the plurality of protection sheet groups surrounding the puncture hole and interlaced with each other, which has a simple structure and is easy to install.

[0006] In order to realize the protection sheet group, some preferred embodiments are that each of the protection sheet groups includes a first skirt and at least one protection sheet arranged on the first skirt. Each protection sheet group includes a first skirt and a protection sheet arranged on the first skirt. The first skirt is for facilitating the installation of the protection sheet group, and the protection sheet is for supporting and protecting the equipment to prevent the sealing ring from being punctured due to repeated insertion of the equipment.

[0007] In order to realize the fixed installation of the protective sheet assembly on the outer shell, in some preferred embodiments, a positioning column is provided on one of the outer shell and the first skirt, and a positioning groove is provided on the other of the outer shell and the first skirt, and the positioning column matches the positioning groove, and the positioning column is arranged in the positioning groove. By providing mutually matching positioning grooves and positioning columns between the outer shell and the first skirt, the fixed installation between the outer shell and the first skirt is realized, and the structure is simple, easy to manufacture and install, and the installation efficiency between the outer shell and the first skirt is improved.

[0008] Since the outer ring body plays a sealing role, the thickness of the outer ring body is made thin, while the inner diaphragm needs to be inserted with the instrument, and the insertion is easy to puncture the inner diaphragm, so the thickness of the inner diaphragm is made thick, and the materials of the outer ring body and the inner diaphragm are also different. In order to realize the sealing ring, some preferred embodiments are that the sealing ring includes an outer ring body and an inner diaphragm, and the materials of the outer ring body and the inner diaphragm are both materials with elastic deformation ability, the outer ring body is an annular structure, the inner diaphragm is fixedly installed on the inner periphery of the outer ring body, and the through hole is set on the inner diaphragm. By fixing the inner diaphragm on the inner periphery of the outer ring body, the split structure is convenient for the installation and manufacture of the two.

[0009] In order to realize the fixed installation of the inner diaphragm on the outer ring body, in some preferred embodiments, the sealing ring further includes a first fixing ring and a second fixing ring, one of which is provided with a fixing column, the other of which is provided with a fixing groove, the fixing column matches the fixing groove, the outer ring body is provided with a first mounting hole, the inner diaphragm is provided with a second mounting hole, the first mounting hole and the second mounting hole are both provided corresponding to the fixing column, the outer ring body and the inner diaphragm are located between the first fixing ring and the second fixing ring, one end of the fixing column passes through the first mounting hole and the second mounting hole respectively and is provided in the fixing groove. The outer ring body and the inner diaphragm are fixed to each other by the cooperation of the fixing columns and the fixing grooves on the first fixing ring and the second fixing ring on both sides of the outer ring body and the inner diaphragm.

[0010] In order to facilitate the installation of the inner diaphragm and the outer ring body, in some preferred embodiments, the inner diaphragm includes a second skirt and a sealing film arranged on the second skirt, and the second skirt is arranged on the outer ring body. The second skirt is arranged on the inner circumference of the outer ring body to facilitate the installation of the inner diaphragm and the outer ring body.

[0011] In some preferred embodiments, the sealing film is conical.

[0012] Since the device will shake when it passes through the hole on the sealing ring, in order to ensure the sealing performance of the sealing ring and prevent leakage of the sealing ring when the device shakes, in some preferred embodiments, the cross section of the outer ring body is a wavy structure. The wavy outer ring body can drive the inner diaphragm to follow the displacement as the device shakes, ensuring that the inner diaphragm seals the device stably and reliably.

[0013] The beneficial effects of the utility model are as follows: when the puncture instrument of the utility model is in use, by installing the protective component on the outer shell, the protective component will not cause leakage of the sealing ring due to the shaking of the instrument, and the sealing stability is good. At the same time, the sealing ring and the protective component are installed separately, which reduces the structure of the sealing ring, has a simple structure, reduces the difficulty of assembly, is convenient for assembling the sealing ring, and improves the installation efficiency. It avoids the existing one-piece sealing component that will drive the protective sheet to move together due to the insertion of the instrument, and the instrument drives the protective sheet and pulls the sealing ring many times, which will cause leakage of the sealing component and lead to sealing failure. At the same time, since the sealing ring is an elastic part, it is cumbersome to install it between the fixing part, the protective sheet and the sealing ring, which reduces the pressing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is the front view of the utility model;

[0017] Figure 3 It is a top view of the utility model;

[0018] Figure 4 yes Figure 3 Middle AA section view;

[0019] Figure 5 yes Figure 4 A partial enlarged view of B in the middle;

[0020] Figure 6 It is the front view of the sealing ring in the utility model;

[0021] Figure 7 It is a top view of the sealing ring in the utility model;

[0022] Figure 8 It is a cross-sectional view of the sealing ring in the utility model;

[0023] Fig. 9 It is a three-dimensional structural schematic diagram of the protective component in the utility model;

[0024] Fig.10 It is the front view of the protection component in the utility model;

[0025] Fig.11 It is a left view of the protective component in the utility model;

[0026] Fig.12 It is a top view of the protective component in the utility model;

[0027] Fig.13 It is a three-dimensional structural schematic diagram of the protective sheet group in the utility model;

[0028] Fig.14 This is a front view of the protective sheet assembly in the utility model;

[0029] Fig.15 It is a left view of the protective sheet assembly in the utility model;

[0030] Fig.16 It is a top view of the protective sheet group in the utility model;

[0031] Fig.17 It is a bottom view of the protective sheet group in the utility model.

[0032] In the figure: 1, outer shell, 101, puncture hole;

[0033] 2. Sealing ring, 201. Outer ring body, 202. Inner diaphragm, 203. First fixing ring, 204. Second fixing ring;

[0034] 3. Protective sheet group, 301. First skirt, 302. Protective sheet;

[0035] 4. Positioning column, 5. Positioning groove, 6. Fixing column, 7. Fixing groove, 8. First mounting hole, 9. Second mounting hole, 10. Second skirt, 11. Sealing membrane, 12. Via hole. DETAILED DESCRIPTION

[0036] The utility model is further described in detail below in conjunction with the embodiments:

[0037] The present invention is not limited to the following specific implementations. A person skilled in the art can implement the present invention in a variety of other specific implementations according to the content disclosed in the present invention, or any design structure and idea of ​​the present invention with simple changes or modifications shall fall within the protection scope of the present invention. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0038] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0040] like Figure 1-17As shown, a puncture device includes an outer shell 1 and a protective component. A puncture hole 101 is provided on the outer shell 1. A sealing ring 2 is provided inside the outer shell 1. A through hole 12 is provided on the sealing ring 2. The through hole 12 is provided corresponding to the puncture hole 101. The through hole 12 and the puncture hole 101 are both used for the passage of equipment. The protective component is fixedly installed in the outer shell 1, and the protective component is located between the sealing ring 2 and the outer shell 1.

[0041] In this embodiment, the protection component includes two protection sheet groups 3 as an example. Of course, the protection component includes but is not limited to two protection sheet groups 3, and can also be three, four, five or more protection sheet groups 3. At the same time, in this embodiment, each protection sheet group 3 includes a first skirt 301 and two protection sheets 302 arranged on the first skirt 301 as an example, and the two protection sheets 302 are arranged opposite to each other. Of course, in addition to two, there can also be one protection sheet 302 on the first skirt 301, three protection sheets 302 or more, the first skirts 301 on the protection sheet groups 3 are mutually nested, and the protection sheet groups 3 are staggered along the circumference of the puncture hole 101. One end of the two protection sheet groups 3 is fixed on the outer shell 1, and the other end of the two protection sheet groups 3 is arranged to gradually tilt downward from the outside to the inside along the radial direction of the puncture hole 101 and is in an inverted cone shape.

[0042] In the present embodiment, a positioning column 4 is provided on the outer shell 1, and a positioning groove 5 is provided on the first skirt 301. Of course, the first skirt 301 may also be provided with a positioning column 4, and the outer shell 1 may be provided with a positioning groove 5. The positioning column 4 matches the positioning groove 5, and the positioning column 4 is arranged in the positioning groove 5. In addition to one implementation method of the present embodiment that fixes the outer shell 1 and the protective sheet assembly, the outer shell 1 and the protective sheet assembly may also be fixed by gluing, interlocking, etc.

[0043] The sealing ring 2 includes an outer ring body 201 and an inner diaphragm 202. The materials of the outer ring body 201 and the inner diaphragm 202 are both materials with elastic deformation ability, such as rubber, silicone and other materials. The outer ring body 201 is an annular structure, and the inner diaphragm 202 is fixedly installed on the outer ring body 201. The inner diaphragm 202 is located on the inner periphery of the outer ring body 201, and the through hole 12 is set on the inner diaphragm 202.

[0044] The sealing ring 2 also includes a first fixing ring 203 and a second fixing ring 204. The cross section of the outer ring body 201 is a wavy structure. The sealing membrane 11 is in the shape of an inverted cone, that is, the small end of the trumpet is downward and the large end is upward. In this embodiment, a fixing column 6 is provided on the first fixing ring 203, and a fixing groove 7 is provided on the second fixing ring 204. It can also be another embodiment in which a fixing column 6 is provided on the second fixing ring 204, and a fixing groove 7 is provided on the first fixing ring 203. The fixing column 6 matches the fixing groove 7. The outer ring body 201 is provided with a first mounting hole 8, and the inner diaphragm 202 is provided with a first mounting hole 8. It includes a second skirt 10 and a sealing film 11 arranged on the second skirt 10, the second skirt 10 is arranged on the outer ring body 201, and the second mounting hole 9 is arranged on the second skirt 10 of the inner diaphragm 202. The first mounting hole 8 and the second mounting hole 9 are both arranged corresponding to the fixing column 6. The outer ring body 201 and the inner diaphragm 202 are located between the first fixing ring 203 and the second fixing ring 204. One end of the fixing column 6 passes through the first mounting hole 8 and the second mounting hole 9 respectively and is arranged in the fixing groove 7, so that the first fixing ring 203 and the second fixing ring 204 fix the outer ring body 201 and the inner diaphragm 202.

[0045] When the above-mentioned puncture device is in use, the original integrated sealing ring 2 and protective sheet 302 structure is changed to a separate structure in which the protective component and the sealing ring 2 are arranged. The powder-type structure is simple, and the protective component is fixed on the outer shell 1, and the sealing ring 2 is installed in the outer shell 1, and the protective component is located between the puncture hole 101 on the outer shell 1 and the through hole 12 on the sealing ring 2. The external instrument will pass through the puncture hole 101, the protective component and the through hole 12 in sequence, ensuring that the sealing ring 2 is stably and reliably sealed to the instrument when the instrument is shaken. Multiple insertions of the instrument during the operation can also ensure that the sealing ring 2 will not be punctured. At the same time, the structure of the sealing ring 2 is reduced, the structure is simple, and the production efficiency of the sealing ring 2 is improved.

[0046] The above-mentioned ideal embodiments of the utility model are inspirations. Through the above-mentioned description, relevant staff can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of the utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A puncture device, comprising an outer shell (1), the outer shell (1) being provided with a puncture hole (101), a sealing ring (2) being provided inside the outer shell (1), the sealing ring (2) being provided with a through hole (12), the through hole (12) being provided corresponding to the puncture hole (101), characterized in that: It also comprises a protection component, which is fixedly installed in the outer shell (1) and is located between the sealing ring (2) and the outer shell (1).

2. A trocar according to claim 1, characterized in that: The protection assembly comprises a plurality of protection sheet groups (3), wherein the plurality of protection sheet groups (3) are arranged alternately along the circumference of the puncture hole (101), one end of the plurality of protection sheet groups (3) is fixed on the outer shell (1), and the other end of the plurality of protection sheet groups (3) is arranged to be gradually inclined downward from the outside to the inside along the radial direction of the puncture hole (101).

3. A trocar according to claim 2, characterized in that: Each of the protection sheet groups (3) comprises a first skirt (301) and at least one protection sheet (302) arranged on the first skirt (301).

4. A trocar according to claim 3, characterized in that: A positioning column (4) is provided on one of the outer shell (1) and the first skirt (301), and a positioning groove (5) is provided on the other of the outer shell (1) and the first skirt (301), wherein the positioning column (4) matches the positioning groove (5) and the positioning column (4) is arranged in the positioning groove (5).

5. A trocar according to claim 1, characterized in that: The sealing ring (2) comprises an outer ring body (201) and an inner diaphragm (202); the outer ring body (201) and the inner diaphragm (202) are both made of materials with elastic deformation capability; the outer ring body (201) is an annular structure; the inner diaphragm (202) is fixedly mounted on the inner circumference of the outer ring body (201); and the through hole (12) is arranged on the inner diaphragm (202).

6. A trocar according to claim 5, characterized in that: The sealing ring (2) further comprises a first fixing ring (203) and a second fixing ring (204), one of which is provided with a fixing column (6), the other of which is provided with a fixing groove (7), the fixing column (6) matches the fixing groove (7), the outer ring (201) is provided with a first mounting hole (8), the inner diaphragm (202) is provided with a second mounting hole (9), the first mounting hole (8) and the second mounting hole (9) are both provided corresponding to the fixing column (6), the outer ring (201) and the inner diaphragm (202) are located between the first fixing ring (203) and the second fixing ring (204), one end of the fixing column (6) passes through the first mounting hole (8) and the second mounting hole (9) respectively and is provided in the fixing groove (7).

7. A trocar according to claim 5 or 6, characterized in that: The inner membrane (202) comprises a second skirt (10) and a sealing membrane (11) arranged on the second skirt (10); the second skirt (10) is arranged on the outer ring body (201).

8. A trocar according to claim 7, characterized in that: The sealing film (11) is cone-shaped.

9. A trocar according to claim 5, characterized in that: The cross section of the outer ring body (201) is a wave-shaped structure.

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