CN107334517B - Seal cover and puncture outfit with same - Google Patents
Seal cover and puncture outfit with same Download PDFInfo
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- CN107334517B CN107334517B CN201611270690.8A CN201611270690A CN107334517B CN 107334517 B CN107334517 B CN 107334517B CN 201611270690 A CN201611270690 A CN 201611270690A CN 107334517 B CN107334517 B CN 107334517B
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- sealing
- mounting flange
- flaps
- isolation groove
- groove
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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
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
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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
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
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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
- A61B17/3462—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
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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
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3419—Sealing means between cannula and body
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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
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
- A61B2017/3445—Cannulas used as instrument channel for multiple instruments
Abstract
The invention discloses a sealing sleeve and a puncture outfit with the same, wherein the sealing sleeve comprises: the sealing body and the mounting flange; the seal body includes: the sealing barrel is provided with an upper end opening and a lower end opening, the mounting flange is positioned on the outer side surface of the sealing barrel, a first isolation groove is formed in the sealing barrel and arranged along the circumferential direction of the sealing barrel, a second isolation groove is formed in the mounting flange and arranged along the circumferential direction of the mounting flange; the upper ends of the sealing flaps are connected with the edge of the lower end opening of the sealing cylinder body, and the lower end edges of the sealing flaps are mutually abutted or separated, so that the lower end opening of the sealing cylinder body is selectively opened or closed. According to the invention, the isolation grooves are arranged on the sealing cylinder body and the mounting flange, so that the problem that the mounting flange limits the free closing of the sealing flap is solved, and the sealing property of the sealing sleeve is improved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a sealing sleeve and a puncture outfit with the same.
Background
In abdominal cavity examination, abdominal cavity operation and other minimally invasive or surgical operations, a puncture outfit is an indispensable surgical instrument. The puncture instrument may establish an access channel in the abdominal wall of the body for the entry of a stapler or other surgical instrument (e.g., endoscope, scissors, guide wire, catheter, filter, stent, etc.) into the abdominal cavity and provide a passage for the ingress and egress of gas to control the pneumoperitoneum required for the procedure to be performed for examination or surgical procedures. The puncture outfit comprises a puncture core rod and a puncture sleeve, and the puncture sleeve forms the access channel. Be provided with seal assembly in the puncture sleeve pipe, seal assembly can avoid surgical instruments to get into patient's abdominal cavity and take place gas leakage when irritating gas to patient's abdominal cavity, seal assembly includes seal cover and sealed pad.
When a medical operation of the minimally invasive anastomat is started, a doctor generally cuts a small incision on the abdomen of a patient, then the top point of the puncture end is aligned to the cut small incision to reciprocate and move downwards, and the puncture cannula penetrates through the cortex of the abdomen of the patient through the puncture device. 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, a sealing sleeve 1' in a sealing device of a conventional puncture instrument includes: a sealing body 10 'and a mounting bead 20'. Wherein, the sealing body 10 ' comprises a sealing element 11 ' for sealing, and the sealing element 11 ' can be selectively opened or closed. The sealing sleeve 1 'is arranged in the puncture cannula through the mounting flange 20', and the puncture cannula compresses the mounting flange 20 ', so that the sealing sleeve 1' is tightly mounted.
However, when the puncture core rod, the stapler or other surgical instrument is pulled out of the passage established by the puncture instrument, since the mounting flange 20 ' is compressed, the mounting flange 20 ' is compressed and the closing movement of the sealing element 11 ' of the sealing body 10 ' is limited due to the interference between the sealing body 10 ' and the mounting flange 20 ', so that the sealing element 11 ' cannot return to the initial state and is tightly closed. Furthermore, due to the relatively low elastic recovery force of the sealing element 11 ' of the gland 1 ', the sealing element 11 ' is further prevented from closing tightly when the piercing mandrel, the stapler or other surgical instrument is withdrawn from the passage created by the piercer.
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 sleeve and a puncture outfit with the sealing sleeve so as to overcome the defects in the prior art.
In order to achieve the above object, the present invention provides a seal cartridge comprising: the sealing body and the mounting flange;
the seal body includes: the sealing barrel is provided with an upper end opening and a lower end opening, the mounting flange is positioned on the outer side surface of the sealing barrel, a first isolation groove is formed in the sealing barrel and arranged along the circumferential direction of the sealing barrel, a second isolation groove is formed in the mounting flange and arranged along the circumferential direction of the mounting flange;
the upper ends of the sealing flaps are connected with the edge of the lower end opening of the sealing cylinder body, and the lower end edges of the sealing flaps are mutually abutted or separated, so that the lower end opening of the sealing cylinder body is selectively opened or closed.
As an improvement of the sealing sleeve, the first isolation groove is positioned on the outer side surface and/or the inner side surface of the sealing cylinder body; the second isolation groove is located on the upper surface and/or the lower surface of the mounting flange.
As an improvement of the sealing sleeve, when the first isolation groove is positioned on the outer side surface of the sealing cylinder body, the first isolation groove is abutted against the lower surface of the mounting flange; the first isolation groove is positioned on the inner side surface of the sealing cylinder body and is close to the upper end opening of the sealing cylinder body; the second isolation groove is close to the outer side surface of the sealing cylinder body in the radial direction.
As an improvement of the sealing sleeve, the first isolation grooves are continuously or alternately arranged along the circumferential direction of the sealing cylinder body.
As an improvement of the sealing sleeve, the second isolation grooves are arranged continuously or at intervals along the circumferential direction of the mounting flange.
As an improvement of the sealing sleeve, any sealing flap is provided with a top surface and a bottom surface, and the bottom surface is provided with an auxiliary closing groove.
As an improvement of the sealing sleeve of the present invention, in any of the sealing flaps, the auxiliary closing groove is located at an intermediate position of the sealing flap.
As an improvement of the sealing sleeve of the present invention, the auxiliary closing groove is a V-shaped groove.
As an improvement of the sealing sleeve, a plurality of convex structures are arranged on the outer side surface of the sealing cylinder body.
As an improvement of the sealing sleeve, the number of the sealing flaps is two, and the two sealing flaps are symmetrically arranged.
As an improvement of the sealing sleeve, the number of the sealing petals is three, the lower end edges of the three sealing petals can be abutted against each other and are Y-shaped, or the number of the sealing petals is four, and the lower end edges of the four sealing petals are matched with each other and are cross-shaped.
In order to achieve the purpose, the invention provides a puncture outfit comprising the sealing sleeve.
Compared with the prior art, the invention has the beneficial effects that: according to the sealing sleeve disclosed by the invention, the isolation grooves are formed in the sealing cylinder body and the mounting flange, so that the problem that the mounting flange limits the free closing of the sealing flap is solved, and the sealing performance of the sealing sleeve is improved. In addition, the sealing sleeve is provided with the auxiliary closing groove on the bottom surface of the sealing flap, so that the sealing flap is closed after the puncture core rod, the anastomat or other surgical instruments are pulled out.
Drawings
Fig. 1 is a perspective view of a conventional sealing boot;
figure 2 is a schematic perspective view of an embodiment of the sealing glove of the invention;
figure 3 is a schematic perspective view of another angle of an embodiment of the sealing glove of the present invention;
fig. 4 is an exploded perspective view of a conventional puncture cannula.
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, the sealing glove 1 of the present invention comprises: a sealing body 10 and a mounting flange 20. Wherein, the mounting flange 20 is used for realizing the mounting and fixing of the sealing sleeve 1 in the puncture outfit. Specifically, the mounting flange 20 is located on the outer side surface 112 of the sealing cylinder 11, and a plurality of mounting holes 21 are further formed on the mounting flange 20. Preferably, the mounting flange 20 is an annular structure continuously disposed along the circumference of the outer side surface 112 of the sealing cylinder 11. The sealing body 10 and the mounting flange 20 are integrally formed, that is, the sealing sleeve 1 is of an integral structure, and the integral forming mode can be injection molding and the like. In another embodiment, the sealing body 10 is attached to the mounting flange 20 by any means known in the art, such as adhesive, melting, snap-fit, etc.
The seal body 10 includes: a sealing cylinder 11 and a plurality of sealing flaps 12. The sealing cylinder body 11 is arranged in a penetrating mode, the sealing cylinder body 11 is provided with an upper end opening and a lower end opening, the upper ends of the sealing flaps 12 are connected with the lower end opening of the sealing cylinder body 11, and the lower end opening is selectively opened or closed through the sealing flaps 12. The "upper end" and the "lower end" referred to herein are referred to as the piercing direction of the piercing core rod of the piercer, that is, the direction from the "upper end" to the "lower end" is referred to as the piercing direction of the piercing core rod. Similarly, the following "up" and "down" all use the piercing direction of the piercing core rod as a reference direction. In addition, the piercing direction of the piercing mandrel is the direction in which the tip of the piercing mandrel points.
Specifically, when the puncture core rod, the stapler or other surgical instrument is inserted, the sealing flaps 12 are separated from each other by the force applied by the puncture core rod, the stapler or other surgical instrument, so that the lower end opening is opened, and a passage through which gas can flow is formed inside the puncture cannula. At this time, the lower edges of the sealing flaps 12 are tightly fitted with an inserted piercing core rod, stapler or other surgical instrument for sealing. When the puncture core bar, the anastomat or other surgical instruments are pulled out, the acting force applied by the puncture core bar, the anastomat or other surgical instruments disappears, and the plurality of sealing flaps 12 are automatically closed under the action of the self elastic restoring force and the air flow impact force. At this time, the lower end edges of the plurality of sealing flaps 12 are mutually matched, the lower end opening of the sealing cylinder body 11 is sealed by the plurality of sealing flaps 12, and airflow above and below the plurality of sealing flaps 12 cannot circulate, so that sealing between the abdominal cavity of the human body and the external environment is realized.
Further, in the above embodiment, in order to facilitate the automatic closing of the plurality of sealing flaps 12 and form a good seal, the sealing cylinder 11 is provided with the first isolation groove 110, the first isolation groove 110 is arranged along the circumferential direction of the sealing cylinder 11, the mounting flange 20 is provided with the second isolation groove 22, and the second isolation groove 22 is arranged along the circumferential direction of the mounting flange 20. The first isolation grooves 110 are arranged continuously or at intervals along the circumferential direction of the seal cylinder 11; the second isolation grooves 22 are continuously or intermittently arranged along the circumferential direction of the mounting flange 20. Preferably, the first isolation groove 110 is continuously arranged along the circumferential direction of the seal cylinder 11; the second isolation groove 22 is continuously formed along the circumferential direction of the mounting flange 20.
Wherein, the first isolation groove 110 is positioned on the outer side surface 112 and/or the inner side surface 113 of the sealing cylinder body 11; the second isolation groove 22 is located on the upper surface 23 and/or the lower surface 24 of the mounting flange 20. Thus, the first isolation groove 110 and the second isolation groove 22 have nine combinations according to the position of the first isolation groove 110 and the second isolation groove 22, that is:
(1) the first isolation groove 110 is positioned on the outer side surface 112 of the sealing cylinder body 11; the second isolation groove 22 is located on the upper surface 23 of the mounting flange 20.
(2) The first isolation groove 110 is positioned on the outer side surface 112 of the sealing cylinder body 11; the second isolation groove 22 is located on the lower surface 24 of the mounting flange 20.
(3) The first isolation groove 110 is located on the inner side surface 113 of the sealing cylinder 11; the second isolation groove 22 is located on the upper surface 23 of the mounting flange 20.
(4) The first isolation groove 110 is located on the inner side surface 113 of the sealing cylinder 11; the second isolation groove 22 is located on the lower surface 24 of the mounting flange 20.
(5) The first isolation groove 110 is positioned on the outer side surface 112 and the inner side surface 113 of the sealing cylinder body 11; the second isolation groove 22 is located on the upper surface 23 of the mounting flange 20.
(6) The first isolation groove 110 is positioned on the outer side surface 112 and the inner side surface 113 of the sealing cylinder body 11; the second isolation groove 22 is located on the lower surface 24 of the mounting flange 20.
(7) The first isolation groove 110 is positioned on the outer side surface 112 of the sealing cylinder body 11; the second isolation groove 22 is located on the upper surface 23 and the lower surface 24 of the mounting flange 20.
(8) The first isolation groove 110 is located on the inner side surface 113 of the sealing cylinder 11; the second isolation groove 22 is located on the upper surface 23 and the lower surface 24 of the mounting flange 20.
(9) The first isolation groove 110 is positioned on the outer side surface 112 and the inner side surface 113 of the sealing cylinder body 11; the second isolation groove 22 is located on the upper surface 23 and the lower surface 24 of the mounting flange 20.
Due to the interaction between the sealing cylinder 11 and the mounting flange 20, the movement of the sealing flap 12 connected to the sealing cylinder 11 is limited while the mounting flange 20 is pressed during mounting. Therefore, the first isolation groove 110 and the second isolation groove 22 are arranged, so that the limitation of the mounting flange 20 on the movement of the sealing flaps 12 is favorably removed, the automatic closing of the sealing flaps 12 is favorably realized, and the sealing performance of the sealing sleeve is improved.
The shapes of the first isolation groove 110 and the second isolation groove 22 can be adaptively designed according to requirements, for example, the cross-sectional shapes of the first isolation groove 110 and the second isolation groove 22 can be U-shaped groove, V-shaped groove, rectangular groove, etc., that is, the isolation groove structure that can release the limitation of the installation flange 20 on the movement of the sealing flap 12 belongs to the technical solutions obtained under the teaching of the inventive concept of the present invention, and belongs to the alternative embodiments of the isolation groove of the present invention.
In order to make the isolation groove 22 have a better isolation effect, when the first isolation groove 110 is located on the outer side surface 112 of the sealing cylinder 11, the first isolation groove 110 abuts against the lower surface 24 of the mounting flange 20; when the first isolation groove 110 is located on the inner side surface 113 of the sealing cylinder 110, the first isolation groove 22 is close to the upper end opening of the sealing cylinder 11; the second isolation groove 22 is radially adjacent to the outer side surface 112 of the seal cylinder 11. So set up, the separation groove is closer to the hookup location of sealed barrel 11 and installation chimb 20, and then removes above-mentioned installation chimb 20 to the restriction of seal flap 12 motion, thereby is favorable to the free closure of seal flap 12.
As shown in fig. 2, in the case of the above combination (3), the first isolation groove 110 is located on the inner surface 113 of the sealing cylinder 11, and the second isolation groove 22 is located on the upper surface 23 of the mounting flange 20. Wherein the first isolation groove 110 is continuously arranged along the circumferential direction of the seal cylinder 11; the second isolation groove 22 is continuously formed along the circumferential direction of the mounting flange 20. Meanwhile, the first isolation groove 22 is close to the upper end opening of the seal cylinder 11, and the second isolation groove 22 is close to the outer side surface 112 of the seal cylinder 11.
As shown in fig. 3, a plurality of protruding structures 111 are further disposed on the outer side surface 112 of the seal cylinder 11. When the sealing sleeve 1 of the present invention is installed in a puncture cannula, the plurality of protrusion structures 111 abut against the puncture cannula, and by the abutment of the plurality of protrusion structures 111 and the puncture cannula, the puncture cannula generates an acting force on the plurality of protrusion structures 111, and the plurality of protrusion structures 111 transmit the acting force received by the puncture cannula to the sealing cylinder 11. Thus, under the action of the applied force, the sealing cylinder 11 further drives the sealing flaps 12 to close.
As shown in fig. 4, as an embodiment, the puncture cannula 2 includes a cannula housing 201 and a cannula sheath 202 connected to the cannula housing 201, wherein an end cap 203 is further disposed on the cannula housing 201, and the cannula housing 201 and the end cap 203 are connected by a rib 211 located inside the cannula housing 201. The sheath 202 is disposed in a hollow manner, and the sheath 202 is communicated with the casing 201. In order to enable the protruding structure 111 of the sealing sleeve 1 to be adapted to the inner shape of the casing 201, the profile of the side surface of any protruding structure 111 is M-shaped, the M-shaped protruding structure 111 abuts against the protruding rib 211, and the protruding rib 211 is partially accommodated in the recess of the M-shaped protruding structure 111, wherein the sealing sleeve 1 is mounted inside the casing 201. Meanwhile, the M-shaped protrusion 111 is also beneficial to avoiding interference with the mounting hole 21.
As shown in fig. 3, in addition, in order to facilitate the automatic closing of the sealing flaps 12 after the puncture core rod, the anastomat or other surgical instruments are pulled out, the sealing flaps 12 of the sealing sleeve 1 of the present invention are further provided with auxiliary closing grooves 121. Specifically, any sealing flap 12 has a top surface and a bottom surface, and the bottom surface of the sealing flap 12 is provided with an auxiliary closing groove 121, and the auxiliary closing groove 121 extends from the upper end of the bottom surface of the sealing flap 12 to the lower end of the sealing flap. Through setting up supplementary closed groove 121, increased the area of sealed lamella 12 bottom surface, so, when puncture core bar, anastomat or other surgical instruments pull out, the gas that fills in the patient abdominal cavity can fully act on with the bottom surface of sealed lamella 12 for sealed lamella 12 can be automatic closed, and form good sealed, effectively guarantee the leakproofness of the passageway that the puncture sleeve pipe formed, avoided the emergence of gas leakage problem.
Further, since the auxiliary closing groove 121 is concavely provided on the bottom surface of the sealing flap 12, when the sealing flap 12 is restored to the closed state, the auxiliary closing groove 121 can generate an inward elastic restoring force, thereby assisting the closing of the sealing flap 12. In order to enable the auxiliary closing groove 121 to provide a uniform and symmetrical elastic restoring force to the sealing flap 12, the auxiliary closing groove 121 is located at a middle position of the sealing flap 12, and preferably, the auxiliary closing groove 12 is a V-shaped groove.
The number of the sealing flaps 12 may be two, three, or four, and a larger number of sealing flaps 12 may be provided as needed. When there are two sealing flaps 12, the two sealing flaps 12 are symmetrically disposed. Alternatively, when the number of the seal pieces 12 is three, the lower end edges of the three seal pieces 12 are fitted to each other, and the lower end edges of the three seal pieces 12 are in a Y-shape. Alternatively, when the number of the seal pieces 12 is four, the lower end edges of the four seal pieces 12 are fitted to each other, and the lower end edges of the four seal pieces 12 are cross-shaped. In other embodiments, the number of the sealing flaps 12 may be set to be greater than four according to needs, and the number and the interconnection manner of the sealing flaps 12 may also be changed according to needs, so as to satisfy the acting force and the sealing performance during puncturing, which is not illustrated here.
Based on the sealing sleeve 1, the invention also provides a puncture outfit, which comprises a puncture core rod and a puncture sleeve, wherein the puncture core rod can be inserted into the puncture sleeve. The puncture cannula forms a channel between the abdominal cavity of the human body and the outside, and the puncture core bar can guide the puncture cannula to be inserted into the abdominal cavity of the human body from an incision of the abdominal cavity of the human body. A sealing assembly is arranged in the puncture cannula, and comprises the sealing sleeve 1.
In conclusion, the sealing sleeve 1 and the puncture outfit with the same provided by the invention have the advantages that the isolation groove is arranged on the inner side surface of the sealing cylinder body, so that the problem that the mounting flange 20 limits the free closing of the sealing flap 12 is solved, and the sealing performance of the sealing sleeve 1 is improved. In addition, the sealing sleeve 1 of the invention is beneficial to the automatic closing of the sealing flap after the puncture core rod, the anastomat or other surgical instruments are pulled out by arranging the auxiliary closing groove on the bottom surface of the sealing flap.
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 (12)
1. A sealing boot, comprising: the sealing body and the mounting flange; the method is characterized in that:
the seal body includes: the sealing barrel is provided with an upper end opening and a lower end opening, the mounting flange is positioned on the outer side face of the sealing barrel, a first isolation groove is formed in the sealing barrel and arranged along the circumferential direction of the sealing barrel, a second isolation groove is formed in the mounting flange and arranged along the circumferential direction of the mounting flange, and the second isolation groove is close to the outer side face of the sealing barrel in the radial direction;
the upper ends of the sealing flaps are connected with the edge of the lower end opening of the sealing cylinder body, and the lower end edges of the sealing flaps are mutually abutted or separated, so that the lower end opening of the sealing cylinder body is selectively opened or closed.
2. The sealing glove of claim 1, wherein the first isolation groove is located on the outer side and/or inner side of the sealing cylinder; the second isolation groove is located on the upper surface and/or the lower surface of the mounting flange.
3. The seal cartridge of claim 1, wherein the first isolation groove is located on the outer side of the seal cartridge, the first isolation groove abutting against the lower surface of the mounting flange; the first isolation groove is positioned on the inner side surface of the sealing cylinder body and is close to the upper end opening of the sealing cylinder body; the second isolation groove is close to the outer side surface of the sealing cylinder body in the radial direction.
4. The sealing glove according to claim 1, wherein the first isolation grooves are provided continuously or at intervals in the circumferential direction of the sealing glove.
5. The sealing glove according to claim 1, wherein the second isolation grooves are provided continuously or at intervals along the circumferential direction of the mounting flange.
6. The sealing glove of claim 1, wherein any of the sealing flaps has a top surface and a bottom surface, the bottom surface being provided with an auxiliary closure groove.
7. The sealing glove of claim 6, wherein in any of the sealing lobes, the auxiliary closure groove is located at an intermediate position of the sealing lobe.
8. A sealing glove according to claim 6 or 7, characterized in that the auxiliary closing groove is a V-shaped groove.
9. The sealing glove of claim 1, wherein the outer side of the sealing glove body is provided with a plurality of convex structures.
10. The sealing glove of claim 1, wherein the number of sealing flaps is two, the two sealing flaps being symmetrically arranged.
11. The sealing glove according to claim 1, wherein the number of the sealing flaps is three, the lower end edges of three sealing flaps can abut against each other, the lower end edges of three sealing flaps are Y-shaped when abutting against each other, or the number of the sealing flaps is four, the lower end edges of four sealing flaps can be fitted with each other, and the lower end edges of four sealing flaps are cross-shaped when fitting with each other; alternatively, the number of sealing flaps is greater than four.
12. A puncture instrument comprising a sealing glove according to any of claims 1 to 11, characterized in that it comprises a puncture core rod and a puncture cannula in which a seal assembly is arranged, said seal assembly comprising said sealing glove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611270690.8A CN107334517B (en) | 2016-12-30 | 2016-12-30 | Seal cover and puncture outfit with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611270690.8A CN107334517B (en) | 2016-12-30 | 2016-12-30 | Seal cover and puncture outfit with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107334517A CN107334517A (en) | 2017-11-10 |
| CN107334517B true CN107334517B (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611270690.8A Active CN107334517B (en) | 2016-12-30 | 2016-12-30 | Seal cover and puncture outfit with same |
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| CN (1) | CN107334517B (en) |
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| CN105997205B (en) * | 2016-08-02 | 2017-09-22 | 成都五义医疗科技有限公司 | A kind of puncture outfit diaphragm seal and component comprising positive and negative groove |
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| CN2734150Y (en) * | 2004-09-06 | 2005-10-19 | 佛山特种医用导管有限责任公司 | Puncture trocar for laparoscope operation |
| CN102652688A (en) * | 2011-03-03 | 2012-09-05 | 周星 | Radial universal seal device for puncture outfit, as well as puncture outfit |
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| CN107334517A (en) | 2017-11-10 |
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