CN108294809B - Sealing gasket, sealing assembly with same and puncture outfit - Google Patents
Sealing gasket, sealing assembly with same and puncture outfit Download PDFInfo
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- CN108294809B CN108294809B CN201610525886.0A CN201610525886A CN108294809B CN 108294809 B CN108294809 B CN 108294809B CN 201610525886 A CN201610525886 A CN 201610525886A CN 108294809 B CN108294809 B CN 108294809B
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- contour line
- edge
- gasket body
- gasket
- sealing gasket
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
Abstract
The invention discloses a sealing gasket, a sealing assembly with the sealing gasket and a puncture outfit with the sealing gasket, wherein the sealing gasket comprises: a gasket body and a mounting edge; the sealing gasket body is in an umbrella shape, the sealing gasket body is provided with a notch, the notch is provided with a first contour line and a second contour line, the first contour line is an inwards concave curve, one end of the first contour line extends to the edge of the sealing gasket body, the other end of the first contour line is directly or indirectly connected with one end of the second contour line, the second contour line is an outwards convex curve, and the other end of the second contour line directly or indirectly extends to the edge of the sealing gasket body; the mounting edge is located at the edge of the sealing gasket body. The sealing gasket reduces the friction force between the sealing gasket and the puncture core bar when the puncture core bar moves relative to the puncture sleeve by optimizing the contour line of the gap, is favorable for the insertion and the extraction of the puncture core bar, and is convenient for the operation of doctors.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a sealing gasket, a sealing assembly with the sealing gasket and a puncture outfit with the sealing gasket.
Background
In abdominal cavity examination, abdominal cavity operation and other minimally invasive or surgical operations, the puncture outfit is an indispensable surgical instrument, and the sealing assembly is a core component of the puncture outfit. The puncture instrument can establish an access channel in the abdominal wall of the human body for the laparoscopic or other surgical instruments (such as endoscopes, scissors, staplers, guide wires, catheters, filters, stents, etc.) to enter into the abdominal cavity and provide a passage for the gas to enter and exit from to control the pneumoperitoneum required for the operation in order to perform an examination or a surgical operation. When a minimally invasive laparoscopic medical operation is started, a doctor generally firstly cuts a small incision on the abdomen of a patient, then the top point of a puncture end is aligned with the cut small incision to reciprocate and move downwards, and the puncture cannula penetrates through the cortex of the abdomen of the patient by the puncture outfit. After the puncture is finished, the puncture core rod of the puncture outfit is pulled out, so that the puncture sleeve becomes a passage for the surgical instrument to enter the abdominal cavity of the patient and fill air into the abdominal cavity of the patient.
As shown in fig. 1, in order to avoid air leakage when the surgical instrument enters the abdominal cavity of the patient and inflates the abdominal cavity of the patient, a sealing device is required to be arranged in the puncture outfit. The sealing device of the existing puncture outfit comprises a choke valve and four sealing gaskets, wherein any sealing gasket is provided with a sealing gasket body a and a mounting edge b, the mounting edge b is provided with a notch, the outline of the notch is set to be a straight line, so when the four sealing gaskets in the shapes are laminated together, although the sealing purpose can be realized, when the puncture core rod moves relative to the puncture sleeve, the friction force generated by a sealing component is large, and the puncture core rod is not beneficial to being inserted and pulled out.
Therefore, it is necessary to provide a further solution to the above problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a sealing gasket, a sealing assembly with the sealing gasket and a puncture outfit, so as to overcome the defects in the prior art.
To achieve the above object, the present invention provides a gasket, comprising: a gasket body and a mounting edge;
the sealing gasket body is in an umbrella shape, the sealing gasket body is provided with a notch, the notch is provided with a first contour line and a second contour line, the first contour line is an inwards concave curve, one end of the first contour line extends to the edge of the sealing gasket body, the other end of the first contour line is directly or indirectly connected with one end of the second contour line, the second contour line is an outwards convex curve, and the other end of the second contour line directly or indirectly extends to the edge of the sealing gasket body;
the mounting edge is located at the edge of the sealing gasket body.
As an improvement of the gasket of the present invention, one end of the first contour line intersects with an edge of the gasket body.
As an improvement of the gasket, the other end of the first contour line is connected with one end of the second contour line through a third contour line, and the third contour line is an inwards concave curve.
As an improvement of the gasket of the present invention, the third contour line is tangent to the first contour line, and the third contour line is tangent to the second contour line.
As an improvement of the gasket of the present invention, the other end of the second contour line extends to the edge of the gasket body through a fourth contour line, and the fourth contour line is an inward concave curve.
As an improvement of the gasket of the present invention, the fourth contour line is tangent to the second contour line and intersects an edge of the gasket body.
As an improvement of the sealing gasket, a projection line of the edge of the sealing gasket body in the horizontal plane has a circle center, and the circle center is coincident with or not coincident with a projection point of a connecting point between the first contour line and the second contour line in the horizontal plane.
As an improvement of the gasket of the present invention, the gasket body further has a thickened region located at a middle position of the gasket body.
As an improvement of the gasket of the present invention, the mounting edge is fixedly connected to the edge of the gasket body, or the mounting edge integrally extends from the edge of the gasket body.
As an improvement of the sealing gasket, at least two mounting through holes are arranged on the mounting edge, and the mounting through holes are arranged on the mounting edge at equal intervals.
In order to achieve the above object, the present invention further provides a sealing assembly, which has a plurality of stacked and staggered sealing gaskets, wherein the sealing gasket is the sealing gasket described above.
In order to achieve the above object, the present invention further provides a puncture instrument having the seal assembly as described above.
Compared with the prior art, the invention has the beneficial effects that: the sealing gasket reduces the friction force between the sealing gasket and the puncture core bar when the puncture core bar moves relative to the puncture sleeve by optimizing the contour line of the gap, is favorable for the insertion and the extraction of the puncture core bar, and is convenient for the operation of doctors.
Drawings
FIG. 1 is a schematic plan view of a prior art gasket;
FIG. 2 is a schematic perspective view of one embodiment of a gasket of the present invention;
FIG. 3 is a top view of the gasket of FIG. 2;
FIG. 4 is a schematic plan view of a seal assembly of the present invention
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "reciprocal", and the like, indicate orientations and positional relationships that are based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. The following describes each embodiment of the present invention in detail with reference to specific embodiments.
As shown in fig. 2 and 3, the gasket 1 of the present invention includes: gasket body 10 and mounting rim 20. The gasket body 10 is an umbrella-shaped structure, and the mounting edge 20 is located at the edge of the gasket body 10. The edge refers to a position farthest from the central axis of the gasket body 10. Meanwhile, the central axis here means a straight line passing through the center of a projection line of the edge of the umbrella-shaped gasket body 10 and perpendicular to a plane on which the edge of the gasket body 10 is located.
In order to enable the sealing gasket to be sealed while a piercing core rod (not shown) can penetrate through the sealing gasket, the umbrella-shaped sealing gasket body 10 is provided with a notch 11. Specifically, breach 11 has first contour line 110 and second contour line 111, wherein, first contour line 110 is the curve of indent, the one end of first contour line 110 extends to on the edge of umbrella-type sealing gasket body 10, the other end of first contour line 110 with the one end of second contour line 111 is connected, the other end of second contour line 111 extends to on the edge of umbrella-type sealing gasket body 10, second contour line 111 is the curve of evagination. Therefore, the first contour line 110 is set to be an inwards concave curve, and the second contour line 111 is set to be an outwards convex curve, so that the contact area between the sealing gasket body 10 and the puncture core rod is reduced on the premise of ensuring the sealing performance of the sealing gasket body 10, the friction force between the sealing gasket body 10 and the puncture core rod is reduced, and the puncture core rod is convenient to insert and pull out.
Further, a projection line of the edge of the umbrella-shaped sealing gasket body 10 in the horizontal plane has a center, and the center coincides with or does not coincide with a projection point of a connection point a between the first contour line 110 and the second contour line 111 in the horizontal plane. When the circle center coincides with the projection point, the connection point between the first contour line 110 and the second contour line 111 is located on the central axis of the umbrella-shaped sealing gasket body 10.
While one end of the first contour line 110 extends to the edge of the umbrella-shaped gasket body 10, the first contour line 110 intersects with the edge of the umbrella-shaped gasket body 10. In addition, in order to realize the smooth connection between the first contour line 110 and the second contour line 111, as an alternative to "the other end of the first contour line 110 is connected to one end of the second contour line 111", the other end of the first contour line 110 is connected to one end of the second contour line 111 by a third contour line 112, and the third contour line 112 is a concave curve. Preferably, third contour line 112 is tangent to first contour line 110 and second contour line 111.
In the alternative, a projection line of the edge of the umbrella-shaped gasket body 10 in the horizontal plane has a center, and when the other end of the first contour line 110 is connected with one end of the second contour line 111 through the third contour line 112, a projection point of a connection point between the first contour line 110 and the third contour line 112 in the horizontal plane coincides with or does not coincide with the center of the circle.
The second contour line 111 is a convex curve, and as mentioned above, one end of the second contour line 111 is connected to the first contour line 110 directly or through the third contour line 112. Further, the other end of the second contour 111 extends to the edge of the umbrella-shaped gasket body 10. In order to achieve a smooth transition between the second contour 111 and the edge of the umbrella gasket body 10, the other end of the second contour 111 extends through a fourth contour 113 onto the edge of the umbrella gasket body 10. The fourth contour 113 is an inward concave curve, one end of the fourth contour 113 is tangent to the second contour 111, and the other end of the fourth contour is intersected with the edge of the umbrella-shaped gasket body 10.
The gasket body 10 also has a thickened region (not shown) located at an intermediate position of the gasket body 10. The thickness of the sealing gasket body in thickening region department is greater than the thickness of the sealing gasket body on every side, so, through setting up this thickening region intensity that has improved sealed pad.
The mounting edge 20 is used to achieve the fixed mounting of the inventive seal in the puncture device. The mounting edge 20 has a top surface, a bottom surface opposite the top surface, and side surfaces between the top and bottom surfaces. As described above, the "top surface" is relative to the "bottom surface" of the mounting edge 20, and the "top surface" and the "bottom surface" are referred to as a puncture direction of the puncture device, that is, a direction in which the "top surface" points to the "bottom surface" is the puncture direction.
Specifically, the mounting edge 20 is fixedly connected to the edge of the umbrella-shaped gasket body 10, or the mounting edge 20 integrally extends from the edge of the umbrella-shaped gasket body 10. The edge of the gasket body 10 has a notch 11, so that the mounting edge 20 has an unclosed annular structure. At this time, the side surface of the mounting edge 20 includes an inner arc surface and an outer arc surface. The edge of the umbrella-shaped sealing gasket body 10 is connected with the arc-shaped surface at the inner side of the mounting edge 20. The mounting edge 20 is further provided with at least two mounting through holes 21, and preferably, the mounting through holes 21 are arranged on the mounting edge 20 at equal intervals.
In addition, the top surface of the mounting edge 20 is further provided with an arc-shaped protrusion 22, and the arc-shaped protrusion 22 is located on one side of the mounting through holes 21 and is arranged close to the edge of the mounting edge 20. The strength of the mounting edge 20 is enhanced by the provision of the arc-shaped protrusion 22, so that the gasket is less likely to fall off under the driving of friction when the piercing mandrel penetrates the gasket.
As shown in fig. 4, the present invention also provides a gasket assembly 2 based on the gasket 1, wherein the gasket assembly 2 is formed by stacking the gaskets 1 in a staggered manner. The term "offset" means that the gaskets are stacked one on top of another, the notches 11 in the edges of the gasket bodies 10 of the gaskets are overlapped, the central axes of the gaskets are also overlapped, and the gaskets are rotated by a specific angle from top to bottom or from bottom to top about the central axes thereof. The specific angle depends on the number of gaskets the sealing assembly 2 has, and is m × 360/n, where m is the gasket rotation order represented by arabic numerals and n is the number of gaskets.
Fig. 4 shows only four gaskets, and the other cases are not shown. Meanwhile, the contour lines of the four stacked gaskets shown in fig. 4 are ideally tightly attached together, in practical cases, the contour lines of the four stacked gaskets cannot be tightly attached due to the insertion and extraction of the puncture core rod, and a hole for the puncture core rod to pass through is formed between the four gaskets, and the hole is located at the bottom of the umbrella-shaped gasket.
Based on the sealing gasket assembly 2, the invention also provides a puncture outfit, and the puncture outfit is provided with the sealing assembly 2.
In conclusion, the sealing gasket reduces the friction force between the sealing gasket and the puncture core bar when the puncture core bar moves relative to the puncture sleeve by optimizing the contour line of the notch, is favorable for the insertion and the extraction of the puncture core bar, and is convenient for the operation of a doctor.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A gasket, comprising: a gasket body (10) and a mounting edge (20); the method is characterized in that:
the sealing gasket body (10) is umbrella-shaped, the sealing gasket body (10) has a notch (11), the notch (11) has a first contour line (110) and a second contour line (111), the first contour line (110) is an inwards concave curve, one end of the first contour line (110) extends to the edge of the sealing gasket body (10), the other end of the first contour line (110) is directly or indirectly connected with one end of the second contour line (111), the second contour line (111) is an outwards convex curve, the other end of the second contour line (111) directly or indirectly extends to the edge of the sealing gasket body (10), the other end of the first contour line (110) is connected with one end of the second contour line (111) through a third contour line (112), and the third contour line (112) is an inwards concave curve, the third contour line (112) is tangent to the first contour line (110), and the third contour line (112) is tangent to the second contour line (111);
the mounting edge (20) is positioned at the edge of the sealing gasket body (10).
2. A gasket according to claim 1, characterized in that one end of the first contour (110) intersects the edge of the gasket body (10).
3. Gasket according to claim 1, characterized in that the other end of the second contour (111) extends onto the edge of the gasket body (10) by means of a fourth contour (113), the fourth contour (113) being a concave curve.
4. A gasket according to claim 3, characterized in that said fourth contour (113) is tangent to said second contour (111) and intersects the edge of said gasket body (10).
5. A gasket according to claim 1, characterized in that the projection line of the edge of the gasket body (10) in the horizontal plane has a centre which coincides or does not coincide with the projection point of the connection point between the first contour line (110) and the second contour line (111) in the horizontal plane.
6. Gasket according to claim 1, characterized in that the gasket body (10) also has a thickened region, which is located in an intermediate position of the gasket body (10).
7. The gasket of claim 1, wherein the mounting edge (20) is fixedly connected to an edge of the gasket body (10) or the mounting edge (20) extends integrally from the edge of the gasket body (10).
8. Gasket according to claim 1, characterized in that said mounting edge (20) is provided with at least two mounting through holes (21), said mounting through holes (21) being arranged at equal intervals on said mounting edge (20).
9. A sealing assembly, characterized in that the sealing assembly is provided with a plurality of sealing gaskets which are arranged in a stacked and staggered mode, and the sealing gaskets are the sealing gaskets according to any one of claims 1-8.
10. A puncture instrument having the seal assembly of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610525886.0A CN108294809B (en) | 2016-07-05 | 2016-07-05 | Sealing gasket, sealing assembly with same and puncture outfit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610525886.0A CN108294809B (en) | 2016-07-05 | 2016-07-05 | Sealing gasket, sealing assembly with same and puncture outfit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108294809A CN108294809A (en) | 2018-07-20 |
| CN108294809B true CN108294809B (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610525886.0A Active CN108294809B (en) | 2016-07-05 | 2016-07-05 | Sealing gasket, sealing assembly with same and puncture outfit |
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| Country | Link |
|---|---|
| CN (1) | CN108294809B (en) |
Citations (3)
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| CN101506554A (en) * | 2006-09-21 | 2009-08-12 | 费希尔控制产品国际有限公司 | Metal seal with flexible insert |
| CN204671237U (en) * | 2014-12-23 | 2015-09-30 | 广州迪克医疗器械有限公司 | Combined sealing component and perforator |
| CN204671236U (en) * | 2014-11-16 | 2015-09-30 | 广州迪克医疗器械有限公司 | Radial seal assembly, end seal and perforator |
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| AT355189B (en) * | 1973-08-16 | 1980-02-25 | Boehringer Sohn Ingelheim | HOLLOW POINTING NEEDLE WITH HANDLE FOR USE IN VENIC CATHETER DEVICES |
| US7635353B2 (en) * | 2004-09-22 | 2009-12-22 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Transseptal puncture needles and needle assemblies |
| US7481795B2 (en) * | 2004-12-17 | 2009-01-27 | Ethicon Endo-Surgery, Inc. | Circumferential trocar seal assembly |
| US7931624B2 (en) * | 2005-04-05 | 2011-04-26 | Tyco Healthcare Group Lp | Introducer seal assembly with low profile gimbal seal |
| US7918827B2 (en) * | 2007-09-25 | 2011-04-05 | Tyco Healthcare Group Lp | Seal assembly for surgical access device |
| CN203710098U (en) * | 2013-12-31 | 2014-07-16 | 杭州康基医疗器械有限公司 | Sealing assembly for puncture sleeve of puncture outfit |
| CN203710092U (en) * | 2013-12-31 | 2014-07-16 | 杭州康基医疗器械有限公司 | Sealing piece for puncture outfit puncturing cannula |
| CN203749520U (en) * | 2014-03-01 | 2014-08-06 | 杭州康基医疗器械有限公司 | Umbrella-shaped sealing gasket of puncture outfit |
| CN203749522U (en) * | 2014-03-01 | 2014-08-06 | 杭州康基医疗器械有限公司 | Casing pipe sealing gasket of puncture outfit |
| CN203749462U (en) * | 2014-03-01 | 2014-08-06 | 杭州康基医疗器械有限公司 | Novel umbrella-type sealing gasket of puncturing device |
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2016
- 2016-07-05 CN CN201610525886.0A patent/CN108294809B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101506554A (en) * | 2006-09-21 | 2009-08-12 | 费希尔控制产品国际有限公司 | Metal seal with flexible insert |
| CN204671236U (en) * | 2014-11-16 | 2015-09-30 | 广州迪克医疗器械有限公司 | Radial seal assembly, end seal and perforator |
| CN204671237U (en) * | 2014-12-23 | 2015-09-30 | 广州迪克医疗器械有限公司 | Combined sealing component and perforator |
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| Publication number | Publication date |
|---|---|
| CN108294809A (en) | 2018-07-20 |
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