CN110495934B - Fisheye valve, puncture sealing assembly and puncture outfit - Google Patents
Fisheye valve, puncture sealing assembly and puncture outfit Download PDFInfo
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- CN110495934B CN110495934B CN201910891280.2A CN201910891280A CN110495934B CN 110495934 B CN110495934 B CN 110495934B CN 201910891280 A CN201910891280 A CN 201910891280A CN 110495934 B CN110495934 B CN 110495934B
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- 238000007789 sealing Methods 0.000 title claims abstract description 103
- 230000006835 compression Effects 0.000 claims description 21
- 238000007906 compression Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 13
- 239000012528 membrane Substances 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000013011 mating Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3498—Valves therefor, e.g. flapper valves, slide valves
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a fish-eye valve, a puncture sealing assembly and a puncture outfit, which comprise a fish-eye outer ring, a raised fish-eye part integrally formed with the fish-eye outer ring, and a through hole which is arranged at the center of the fish-eye part and is suitable for a puncture needle rod to pass through; the fish-eye part comprises a first thin-wall part connected with the fish-eye outer ring, a thick-wall part connected with the first thin-wall part, and a second thin-wall part connected with the thick-wall part; the wall thickness of the first thin wall part and the second thin wall part is smaller than that of the thick wall part; the through hole is formed in the second thin wall part; and the hole wall of the hole opening of the through hole far away from the fisheye outer ring is formed with an arc flanging from the inner side of the through hole to the outer side of the through hole along the circumferential direction of the through hole. The fisheye valve, the puncture sealing assembly and the puncture outfit can reduce the holding force of the puncture sealing assembly on the puncture needle rod on the premise of effectively ensuring the air tightness on the premise of matching the puncture needle rod, thereby improving the flexibility and smoothness of the puncture needle rod during movement.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a fish-eye valve, a puncture sealing assembly and a puncture outfit.
Background
The puncture sealing module of the puncture device comprises a sealing component, a fixing component and a buffer piece arranged between the sealing component and the fixing component, wherein the sealing component can swing in a certain range relative to the fixing component through the buffer piece; the sealing assembly comprises a positioning seat and a fish-eye valve, wherein the positioning seat is used for realizing the relative fixation of the position of the fish-eye valve and is also used for realizing the close fit between the fish-eye valve and other structures, so that the stability of the assembled structure is also required to be considered when the convenience of the assembly among the positioning seat, the fish-eye valve and other structures is considered.
In addition, specifically, the fish-eye valve is a sealing element suitable for the penetration of the puncture needle rod, the fish-eye valve is provided with a raised fish-eye structure, the fish-eye structure is provided with a perforation suitable for the penetration of the puncture needle rod, the perforation is tightly matched with the puncture needle rod, in the moving process of the puncture needle rod, in order not to influence the movement of the puncture needle rod to cause the air tightness between the puncture needle rod and the fish-eye valve, and the wall of the perforation on the fish-eye structure and the circumferential outer side wall of the puncture needle rod form a tight wrapping relation. Here, it is also necessary to consider that the resistance of the fisheye valve to the movement of the needle shaft is reduced as much as possible while sufficiently considering ensuring good air tightness.
Disclosure of Invention
The first object of the invention is to provide a fish-eye valve, which solves the problem of reducing the holding resistance of the fish-eye valve when moving a puncture needle rod while keeping the air tightness of the fish-eye valve when the fish-eye valve is matched with the puncture needle rod.
A second object of the present invention is to provide a puncture sealing assembly that solves the problem of reducing the holding resistance of the fisheye valve to the movement of the lancet shaft while maintaining the air tightness of the fisheye valve when mated with the lancet shaft.
The third object of the invention is to provide a puncture outfit, which solves the problem that the air tightness of the fish-eye valve is kept when the fish-eye valve is matched with a puncture needle rod, and simultaneously reduces the holding resistance of the fish-eye valve when the fish-eye valve moves relative to the puncture needle rod.
The fish-eye valve of the invention is realized as follows:
A fisheye valve adapted for use in a puncture sealing assembly comprising: the device comprises a fish-eye outer ring, a raised fish-eye part integrally formed with the fish-eye outer ring, and a through hole which is suitable for a puncture needle rod to pass through and is arranged in the center of the fish-eye part; wherein the method comprises the steps of
The fish-eye part comprises a first thin-wall part connected with the fish-eye outer ring, a thick-wall part connected with the first thin-wall part, and a second thin-wall part connected with the thick-wall part;
the wall thickness of the first thin-wall part and the second thin-wall part is smaller than that of the thick-wall part; and
The through hole is formed in the second thin-wall part; and the hole wall of the hole opening of the fish-eye outer ring far away from the through hole is formed with an arc flanging from the inner side of the through hole to the outer side of the through hole along the circumferential direction of the through hole.
In a preferred embodiment of the present invention, the wall thickness of the first thin-walled portion is equal to the wall thickness of the second thin-walled portion; a kind of electronic device with a high-pressure air-conditioning system.
The thickness of the thick wall part is 1.2 to 1.6 times of the thickness of the first thin wall part and the second thin wall part.
In a preferred embodiment of the present invention, the wall thicknesses of the first thin-walled portion and the second thin-walled portion are not equal; and
The thickness of the thick wall part is 1.2-1.6 times that of the first thin wall part and the second thin wall part which are larger.
In a preferred embodiment of the present invention, the height of the arc-shaped flange along the axial direction of the through hole is 0.3-1.0 mm.
The puncture sealing assembly of the present invention is realized by:
a puncture sealing assembly adapted for use with a puncture instrument, comprising: the fish-eye valve, the fish-eye valve pressing rings and the sealing seat are respectively arranged at the two axial ends of the fish-eye valve, and the protection pad pressing rings are arranged at the axial ends of the sealing seat far away from the fish-eye valve; wherein the method comprises the steps of
A swinging film is arranged between the protection pad compression ring and the axial direction of the fish-eye valve; the swing film comprises a first base, a second base and an S-shaped connecting part arranged between the first base and the second base; the first base station is suitable for simultaneously abutting against the sealing seat and the protection pad compression ring, and the second base station is used for being matched and fixed with the sleeve cover 1 of the puncture outfit; and
The protection pad clamping ring, the first base, the sealing seat, the fisheye valve and the fisheye valve clamping ring are tightly pressed and fixed along the axial direction of the fisheye valve through a post hole matching structure which is in fit connection.
In a preferred embodiment of the present invention, the post hole matching structure includes a plurality of first posts vertically protruding from the end face of the fisheye valve pressing ring facing the fisheye valve at intervals along the circumferential direction of the fisheye valve pressing ring, a plurality of second posts vertically protruding from the end face of the sealing seat facing the fisheye valve at intervals along the circumferential direction of the sealing seat, a plurality of second post holes adapted to be inserted into the plurality of second posts and provided on the end face of the fisheye valve pressing ring facing the fisheye valve, a plurality of first post holes adapted to be inserted into the plurality of first posts and provided on the end face of the sealing seat facing the fisheye valve, and a plurality of matching holes adapted to be penetrated by the plurality of first posts and the plurality of second posts and provided on the fisheye valve;
The second pillars and the first pillars are arranged in a staggered manner, namely under the matching of the first pillars and the first pillar holes and the matching action of the second pillars and the second pillar holes and the matching holes, the fisheye valve pressing ring and the sealing seat press and fix the fisheye valve.
In a preferred embodiment of the present invention, the post hole matching structure further includes a plurality of third posts vertically protruding from a side end surface of the protection pad pressing ring facing the first base at intervals along a circumferential direction of the protection pad pressing ring, a plurality of third post holes adapted to be inserted into the third posts and provided on a side end surface of the sealing seat facing the protection pad pressing ring, and a through hole adapted to be penetrated by the third posts and provided on the first base;
Namely, under the cooperation of the third column, the third column hole and the perforation, the protection pad pressing ring and the sealing seat compress and fix the swinging film.
In a preferred embodiment of the present invention, the puncture sealing assembly further includes a sealing body disposed between the protection pad compression ring and the swing membrane;
The sealing body comprises an embedded part which is suitable for being embedded between the protection pad compression ring and the first base, a connecting part which is integrally connected with the embedded part to form an L-shaped structure, and a sealing part which is connected with the connecting part;
the sealing body is formed by a plurality of sealing flaps in a butt joint or partial overlapping mode;
The insertion portion is provided with a through hole through which a plurality of third columns pass.
In a preferred embodiment of the present invention, the S-shaped connection part includes a small U-shaped folded part connected to the first base and a large U-shaped folded part connected to the second base; wherein the method comprises the steps of
The small U-shaped folding part and the large U-shaped folding part share a side wall; the small U-shaped folding part protrudes from the first base, the large U-shaped folding part protrudes from the second base, and the direction of the small U-shaped folding part protruding relative to the first base is opposite to the direction of the large U-shaped folding part protruding relative to the second base.
The puncture outfit of the invention is realized as follows:
A puncture outfit comprising: the puncture sealing assembly.
By adopting the technical scheme, the invention has the following beneficial effects: according to the fish-eye valve, the puncture sealing assembly and the puncture device, the fish-eye part of the fish-eye valve comprises the first thin-wall part, the thick-wall part connected with the first thin-wall part and the second thin-wall part connected with the thick-wall part, wherein the wall thickness of the first thin-wall part and the wall thickness of the second thin-wall part are smaller than those of the thick-wall part, so that the wall thickness of the whole fish-eye part is thin in the direction from the fish-eye outer ring to the through hole, and the structure is matched with the arc flanging formed by the orifice of the through hole, so that the puncture sealing assembly comprising the fish-eye valve can be formed on the premise of not affecting the good air tightness with the puncture needle rod, the resistance of the fish-eye valve under the holding force of the puncture needle rod is reduced, and the flexibility and the smoothness of the puncture needle rod in the moving process are finally improved.
Further, the S-shaped connecting part included in the swinging membrane enables the swinging membrane to have certain distortion, the distortion shows the follow-up property matched with the movement of the puncture needle rod when the puncture needle rod moves, and the follow-up property enables the fisheye valve of the puncture sealing assembly to be capable of reducing the resistance of the puncture sealing assembly including the fisheye valve to the movement of the puncture needle rod on the premise of ensuring good close fit between the fisheye valve and the puncture needle rod.
Still further, through the post hole cooperation structure of adaptation grafting between protection pad clamping ring, first base, sealing seat, fisheye valve and fisheye valve clamping ring in order to realize compressing tightly the fisheye valve along the axial of fisheye valve fixed, the convenience when not only utilizing the protection pad between protection pad, first base, sealing seat, fisheye valve and the fisheye valve clamping ring to assemble, the assembly between the parts that post hole cooperation structure realized is compact firm moreover, so, when carrying out the puncture operation after inserting the puncture needle pole into the puncture ware, even there is violent operation problem in the operation process also be difficult for appearing the part drop.
Drawings
FIG. 1 is a schematic view of the overall structure of the puncture outfit of the present invention;
FIG. 2 is a schematic view of the overall structure of the puncture sealing assembly of the puncture outfit of the present invention as part A of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the lancing seal assembly of the lancing device of the present invention;
FIG. 4 is a schematic view of an exploded view of the puncture sealing assembly of the puncture instrument of the present invention at a first perspective;
FIG. 5 is a schematic view of an exploded view of a second view of the puncture sealing assembly of the puncture instrument of the present invention;
FIG. 6 is a schematic view showing a structure of a swing film of the puncture instrument according to the present invention in a sectional view;
fig. 7 is a schematic view showing a structure of the fish-eye valve of the puncture device according to the present invention in a sectional view.
In the figure: sleeve cap 1, fisheye valve 100, fisheye outer ring 101, fisheye 102, through hole 103, second annular triangular caulking groove 1011, mating hole 105, first thin wall portion 1021, thick wall portion 1022, second thin wall portion 1023, arcuate flange 1031, swing membrane 200, first base 201, first annular triangular caulking groove 2011, second base 202, S-shaped connection 203, small U-shaped fold 2031, large U-shaped fold 2032, seal holder 300, protective gasket compression ring 400, fisheye valve compression ring 500, outer ring 507, circular opening 508, first stem 501, second stem 301, first stem hole 302, third stem hole 305, annular base 307, first annular boss 3071, first annular triangular boss 3072, second annular boss 3075, second annular triangular boss 3078, circular opening 308, second stem 503, third stem 402, annular body 405, extension, perforation 2013, seal 600, insert 601, connection 602, seal 407, through hole 608.
Detailed Description
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
Example 1:
Referring to fig. 7, the present embodiment provides a fisheye valve suitable for use in a puncture sealing assembly, comprising: the fish-eye outer ring 101, a raised fish-eye part 102 integrally formed with the fish-eye outer ring 101, and a through hole 103 adapted to pass a puncture needle rod is formed in the center of the fish-eye part 102. Wherein the fisheye 102 includes a first thin-walled portion 1021 connected to the fisheye outer ring 101, a thick-walled portion 1022 connected to the first thin-walled portion 1021, and a second thin-walled portion 1023 connected to the thick-walled portion 1022; in this way, the wall thickness of the entire fisheye 102 is formed to be "thin" in the direction from the fisheye outer ring 101 to the through hole 103.
Specifically, the wall thickness of each of the first thin-walled portion 1021 and the second thin-walled portion 1023 is smaller than the wall thickness of the thick-walled portion 1022; and a through hole 103 is formed in the second thin-walled portion 1023, that is, the through hole 103 is provided on the second thin-walled portion 1023, and a hole wall of the through hole 103 at a position away from the hole opening of the fisheye outer ring 101 is burred along the circumferential direction of the through hole 103 from the inside of the through hole 103 toward the outside of the through hole 103 to form an arc burring 1031. With the arcuate flange 1031 here, the arcuate opening of the arcuate flange 1031 is directed toward the side of the axis facing away from the through hole 103, and furthermore, the height of the arcuate flange 1031 in the axial direction of the through hole 103 is 0.3 to 1.0mm in the present embodiment.
In an alternative case, the wall thickness of the first thin-walled portion 1021 is equal to that of the second thin-walled portion 1023; a kind of electronic device with a high-pressure air-conditioning system. The thickness of thick portion 1022 is 1.2 to 1.6 times the thickness of first thin portion 1021 and second thin portion 1023. In still another alternative case, the wall thicknesses of the first thin-walled portion 1021 and the second thin-walled portion 1023 are not equal; and the thick portion 1022 has a wall thickness 1.2 to 1.6 times larger than those of the first thin portion 1021 and the second thin portion 1023. That is, the thickness of the first thin portion 1021 and the second thin portion 1023 is thinner than the thickness of the thick portion 1022, so that the use of the present embodiment is satisfied.
With the fisheye valve 100 of the present embodiment, the wall thickness of the whole fisheye 102 is a "thin and thin" structure from the fisheye outer ring 101 to the through hole 103, and such a structure can still effectively maintain the air tightness at the through hole 103 with the puncture needle rod device passing through the puncture device, for example, and further reduce the holding resistance of the whole fisheye 102 against the puncture needle rod, for example, caused by the wall thickness of the "thin and thin" structure of the fisheye 102. In detail, the fisheye valve 100 is required to be matched with the puncture needle rod to generate follow-up deformation when the fisheye 102 of the fisheye valve 100 is matched with the puncture needle rod in a state of being matched with the puncture needle rod, and when the follow-up deformation is required to ensure good air tightness between the through hole 103 and the puncture needle rod, the through hole 103 is required to keep good matching and holding effect with the puncture needle rod, so that the air tightness can not be influenced and the smoothness of the movement of the puncture needle rod can be improved only through the good follow-up effect of the whole fisheye 102, the good follow-up performance of the fisheye 102 is required to be realized, the wall thickness of the fisheye 102 is thinned, the resistance of the fisheye 102 when the fisheye 102 is adaptively deformed along with the puncture needle rod is reduced, but the fisheye valve 100 also needs to keep a certain strength to prevent the phenomenon that the fisheye 102 is damaged along with the movement of the puncture needle rod, and the air tightness is influenced, the wall thickness of the fisheye 102 is easy to be damaged, and the whole fisheye 102 is easy to be damaged, besides the wall thickness of the whole fisheye 102 is required to be formed, the wall thickness of the fisheye 102 is easy to be damaged, and the whole fisheye 102 is difficult to be damaged, and the whole structure is easy to have a certain wall thickness is easy to be damaged, and the wall thickness is difficult to be damaged.
Secondly, in the case of the arcuate flange 1031 formed at the aperture of the through hole 103, the arcuate flange 1031 has a main meaning that when the puncture needle bar and the aperture edge of the through hole 103 facing away from the fisheye outer ring 101 have a certain gap, when the puncture needle bar exits the puncture needle, the inner wall of the through hole 103 contacting the puncture needle bar is in a smooth wall structure without edge contact from the contact surface of the inner wall of the through hole 103 and the puncture needle bar, wherein the inner diameter of the portion of the through hole 103 where the inner wall contacts the puncture needle bar is adapted to cooperate with the outer diameter of the puncture needle bar, so that the inner wall of the portion of the through hole 103 forms a packing for the circumferential direction of the outer side wall of the puncture needle bar, and the aperture edge of the through hole 103 facing away from the fisheye outer ring 101 does not contact the puncture needle bar, so that the aperture edge of the through hole 103 facing away from the fisheye outer ring 101 does not form a blocking effect for the exit of the puncture needle bar, thereby enabling the puncture needle bar to rapidly exit the puncture sealing assembly including the fisheye valve 100.
Example 2:
Referring to fig. 2 to 7, in addition to the fisheye valve 100 of embodiment 1, the present embodiment provides a puncture sealing assembly, which is suitable for a puncture outfit, and comprises: the fisheye valve 100 of embodiment 1, the fisheye valve pressing ring 500 and the seal seat 300 respectively provided at both axial ends of the fisheye valve 100, and the protection pad pressing ring 400 provided at an axial end of the seal seat 300 away from the fisheye valve 100. Wherein a swing film 200 is further provided between the protection pad compression ring 400 and the axial direction of the fisheye valve 100; the swing film 200 includes a first base 201, a second base 202, and an S-shaped connection portion 203 provided between the first base 201 and the second base 202; wherein the first base 201 is suitable for simultaneously abutting against the sealing seat 300 and the protection pad compression ring 400, and the second base 202 is used for being matched and fixed with the sleeve cover 1 of the puncture outfit. The protection pad compression ring 400, the first base 201, the sealing seat 300, the fisheye valve 100 and the fisheye valve compression ring 500 are matched with each other through a post hole matched structure in an adaptive plug-in manner so as to realize the compression fixation of the fisheye valve 100 along the axial direction of the fisheye valve 100.
Specifically, the cylindrical hole fitting structure adopted in this embodiment includes a plurality of first posts 501 vertically protruding at intervals along the circumferential direction of the fisheye valve press ring 500 on the end surface of the fisheye valve press ring 500 facing the fisheye valve 100, a plurality of second posts 301 vertically protruding at intervals along the circumferential direction of the seal base 300 on the end surface of the seal base 300 facing the fisheye valve 100, a plurality of second posts 503 adapted to be inserted into the plurality of second posts 301 provided on the end surface of the fisheye valve press ring 500 facing the fisheye valve 100, a plurality of first post holes 302 adapted to be inserted into the plurality of first posts 501 provided on the end surface of the seal base 300 facing the fisheye valve 100, and a plurality of fitting holes 105 penetrating through the fisheye valve 100 and adapted to pass through the plurality of first posts 501 and the plurality of second posts 301, that is, under the fitting of the first posts 501 with the first post holes 302 and the fitting holes 105 and the fitting holes 503 and the fitting holes 105, the fisheye valve 300 is fixed to the fisheye valve press ring 300. The first cylindrical hole 302 does not penetrate the upper and lower end surfaces of the seal holder 300 in the axial direction, and the second cylindrical hole 503 does not penetrate the upper and lower end surfaces of the fisheye valve press ring 500 in the axial direction.
The first pillar 501 and the second pillar 301 are preferably cylindrical structures, and the first pillar hole 302, the second pillar hole 503, and the mating hole 105 are corresponding slots of a hexagonal structure. For the first pillar 501 and the first pillar hole 302, the second pillar 301 and the second pillar hole 503 can be matched, and the interference fit mode can be adopted to realize the tightness of the matching between the matching hole 105 and the first pillar 501 and the second pillar 301, so that the firmness of the matching can be improved, and the air tightness of the matching can also be improved. In addition, the outer diameters of the first pillar 501 and the second pillar 301 may be the same or different, and only the inner and outer diameters of the first pillar 501 and the first pillar hole 302 and the mating hole 105 need to be matched, and the second pillar 301 and the second pillar hole 503 and the mating hole 105 need to be matched.
It should be noted that the plurality of second posts 301 are offset from the plurality of first posts 501, so that there is no interference between the first posts 501 and the second post holes 503 on the fisheye valve press ring 500, and similarly, there is no interference between the second posts 301 and the first post holes 302 on the seal base 300. Specifically, with reference to the specific positional distribution relationship of the plurality of second pillars 301 and the plurality of first pillar holes 302, in an alternative embodiment, one first pillar hole 302 is disposed between every two adjacent second pillars 301, that is, a staggered distribution structure of the second pillars 301 and the first pillar holes 302 is formed, and correspondingly, with reference to the specific positional distribution relationship of the plurality of first pillars 501 and the plurality of second pillar holes 503, one second pillar hole 503 is disposed between every two adjacent first pillars 501, that is, a staggered distribution structure of the first pillars 501 and the second pillar holes 503 is formed.
In addition, the post hole matching structure comprises a plurality of third posts 402 which are vertically protruded at intervals along the circumferential direction of the protection pad compression ring 400 on the side end surface of the protection pad compression ring 400 facing the base, a plurality of third post holes 305 which are arranged on the side end surface of the sealing seat 300 facing the protection pad compression ring 400 and are suitable for being spliced with the plurality of third posts 402, and a perforation 2013 which is penetratingly arranged on the first base 201 and is suitable for the plurality of third posts 402 to penetrate; namely, under the cooperation of the third pillar 402, the third pillar hole 305 and the through hole 2013, the protection pad compression ring 400 and the seal base 300 compress and fix the swing film 200. For the specific fitting of the third pillar 402 and the third pillar hole 305, reference may be made to the first pillar 501 and the first pillar hole 302, and for this reason, the description will be omitted herein, and for the case of the through hole 2013, reference may be made to the fitting hole 105.
For the puncture sealing assembly of the present embodiment, the puncture sealing assembly further includes a sealing body 600 disposed between the protection pad compression ring 400 and the swing membrane 200; specifically, the sealing body 600 includes an insertion portion 601 adapted to be inserted between the protection pad pressing ring 400 and the first base 201, a connection portion 602 integrally connected to the insertion portion 601 to have an L-shaped structure, and a sealing portion 603 connected to the connection portion 602; the sealing body 600 is formed by a plurality of sealing flaps in a manner of abutting or partially overlapping, and the sealing body 600 in this embodiment may be an integral sealing film, which has a Y-shaped or cross-shaped groove, or a duckbill-shaped formed by abutting a plurality of sealing flaps, or a sealing surface formed by partially overlapping four sealing flaps with a central angle of 90 ° or more. The material of the sealing body 600 herein may be, for example, but not limited to, TPE or TPU. The insertion portion 601 is provided with a through hole 608 through which the plurality of third posts 402 pass. That is, the insert portion 601 of the sealing body 600 is also pressed and fixed between the protection pad pressing ring 400 and the swing film 200 by the engagement of the third pillar 402 and the through hole 608, so that the sealing body 600 and the fisheye valve 100 are engaged with each other, and the sealing body 600 and the fisheye valve 100 do not directly contact each other, so that the sealing body 600 and the fisheye valve 100 can be deformed independently from each other under the action of the puncture needle rod when the puncture needle rod is inserted into the puncture device, thereby reducing the influence on the air tightness. It should be noted that, for the sealing body 600 designed in this embodiment, on one hand, the insertion force during the process of matching the puncture needle rod with the puncture device can be reduced, and on the other hand, the puncture needle rod can be prevented from puncturing the fisheye valve 100 by limiting the sealing body 600 during the process of inserting the puncture needle rod into the puncture device.
Further, the fisheye valve press ring 500 includes an outer ring portion 507 having a circular ring structure provided with the first pillar 501, and a circular opening 508 formed by the outer ring portion 507 in a surrounding manner and adapted to allow the fisheye 102 to pass through. The sealing seat 300 comprises an annular base 307 provided with the second pillar 301 and having an annular structure, and a circular opening portion 308 formed by the annular base 307 in a surrounding manner and adapted to be penetrated by the sealing portion 603. The protection pad compression ring 400 comprises an annular body 405 provided with a third pillar 402 and having an annular structure, and an extension part 407 integrally connected with the annular body 405 and bent towards the sealing part 603 to have an L-shaped structure with the annular body 405; the extension 407 is enclosed with a receptacle structure adapted for insertion of a lancet shaft.
In more detail, the S-shaped connection portion 203 employed in the present embodiment includes a small U-shaped folded portion 2031 connected to the first base 201, and a large U-shaped folded portion 2032 connected to the second base 202; wherein the small U-shaped fold 2031 shares a sidewall with the large U-shaped fold 2032; the small U-shaped fold 2031 protrudes from the first base 201, the large U-shaped fold 2032 protrudes from the second base 202, and the direction in which the small U-shaped fold 2031 protrudes relative to the first base 201 is opposite to the direction in which the large U-shaped fold 2032 protrudes relative to the second base 202. The swing membrane 200 of the present embodiment is made of a material with a certain elasticity, such as, but not limited to, medical polymer plastic, rubber or silica gel, wherein the medical polymer plastic is, for example, medical polytetrafluoroethylene, so that the swing membrane 200 presents good following performance along with the movement of the puncture needle rod through the elastic cooperation of the material and the S-shaped connecting portion 602203.
When the swing film 200 of the present embodiment is specifically used in a puncture sealing assembly, the first base 201 is adapted to be coupled and fixed with other structures of the puncture sealing assembly, and the second base 202 is adapted to be coupled and fixed with the cannula cover 1 of the puncture outfit. Here, as for the direction in which the small U-shaped folded portion 2031 protrudes with respect to the first base 201 and the direction in which the large U-shaped folded portion 2032 protrudes with respect to the second base 202, it is an alternative that the small U-shaped folded portion 2031 protrudes toward the cannula cover 1 side of the puncture instrument with respect to the first base 201, and the large U-shaped folded portion 2032 protrudes away from the cannula cover 1 side of the puncture instrument with respect to the first base 201; still alternatively, the small U-shaped folded portion 2031 is protruded on the side of the cannula cover 1 facing away from the puncture device with respect to the first base 201, and the large U-shaped folded portion 2032 is protruded on the side of the cannula cover 1 facing toward the puncture device with respect to the first base 201, in which case the present embodiment is shown in which case, theoretically, the buckling deformability of the S-shaped connecting portion 203 formed by the small U-shaped folded portion 2031 and the large U-shaped folded portion 2032 is affected by the height of the small U-shaped folded portion 2031 protruded with respect to the first base 201 and the height of the large U-shaped folded portion 2032 protruded with respect to the second base 202, that is, the larger the height of the protrusion is, the larger the space of the buckling deformation of the S-shaped connecting portion 203 is. However, since the side of the sleeve cap 1 facing away from the puncture outfit, that is, the side of the fisheye valve 100, the fisheye valve 100 is mainly formed with good compliance in the process of moving the puncture needle shaft, and good sealability can be considered, the swinging film 200 including the puncture sealing assembly formed together with the fisheye valve 100 is required to have good compliance, that is, the side of the sleeve cap 1 facing away from the puncture outfit, which is the movable section of the fisheye valve 100 for driving the whole puncture sealing assembly to move along with the puncture needle shaft, by the first base 201, and here, considering that too high protrusion of the small U-shaped folded portion 2031 relative to the first base 201 needs to be considered to reduce on the premise of effectively ensuring the distortion space of the S-shaped connecting portion 203, the protrusion of the small U-shaped folded portion 2031 relative to the first base 201 is smaller than the protrusion of the large U-shaped folded portion 2032 relative to the second base 202 for driving the whole puncture sealing assembly along with the puncture needle shaft by the fisheye valve 100. That is, the height of the large U-shaped folded part 2032 protruding towards one side of the sleeve cover 1 of the puncture outfit is fully utilized to provide a relatively large distortion space for the S-shaped connecting part 203, and the influence on the fisheye valve 100 when the puncture sealing assembly is driven to integrally form a follow-up with respect to the puncture needle rod is reduced while the height of the small U-shaped folded part 2031 protruding with respect to the first base 201 is controlled to provide the distortion space for the S-shaped connecting part 203.
Further, as for the distortion property of the S-shaped connecting portion 203, in addition to being affected by the height of the protrusion of the small U-shaped folded portion 2031 with respect to the first base 201 and the height of the large U-shaped folded portion 2032 with respect to the second base 202, it is also affected by the distance between the two side walls of the small U-shaped folded portion 2031 and the distance between the two side walls of the large U-shaped folded portion 2032, where the distance between the two side walls of the small U-shaped folded portion 2031 and the distance between the two side walls of the large U-shaped folded portion 2032 may be the same or different, for example, by designing the distance between the two side walls of the small U-shaped folded portion 2031 to be larger than the distance between the two side walls of the large U-shaped folded portion 2032 so as to compensate for the height of the small U-shaped folded portion 2031 with respect to the first base 201 being smaller than the height of the large U-shaped folded portion 2032 with respect to the protrusion of the second base 202, thereby improving the contribution of the small U-shaped folded portion 2031 to the distortion property of the S-shaped connecting portion 203.
Example 4:
Referring to fig. 3, the puncture sealing assembly provided in this embodiment further includes a first annular protrusion 3071 provided on a side end surface of the annular base 307 facing the first base 201, and a second annular protrusion 3075 provided on a side end surface of the annular base 307 facing the fisheye valve 100. Here, the first annular projection 3071 avoids the second pillar 301 and the first pillar hole 302, that is, neither the second pillar 301 nor the first pillar hole 302 is provided on the first annular projection 3071, and furthermore, the second annular projection 3075 likewise avoids the third pillar hole 305, that is, the third pillar hole 305 is not provided on the second annular projection 3075.
Further, a first annular triangular frustum 3072 having a triangular cross section and protruding is provided on an end surface of the first annular protruding portion 3071 facing the base, and a corresponding first annular triangular caulking groove 2011 adapted to fit with the first annular triangular frustum 3072 is provided on an end surface of the first base 201 facing the first annular protruding portion 3071. The end face of the second annular bulge 3075 facing the fisheye valve 100 is provided with a second annular triangular frustum 3078 with a bulge and a triangular section, and the corresponding end face of the fisheye valve 100 facing the fisheye outer ring 101, which faces the second annular bulge 3075, is provided with a second annular triangular caulking groove 1011 which is concavely arranged and is suitable for being matched with the second annular triangular frustum 3078.
Taking an alternative embodiment as an example, the first annular triangular pyramid 3072 is adapted to have an interference fit with the first annular triangular caulking groove 2011; and the second annular triangular pyramid 3078 is adapted for an interference fit with the second annular triangular caulking groove 1011.
The interference fit of the first annular triangular frustum 3072 and the first annular triangular caulking groove 2011, and the second annular triangular frustum 3078 are suitable for the interference fit with the second annular triangular caulking groove 1011, so that when the puncture needle rod generates axial acting force to the fisheye valve 100, the interference magnitude between the annular triangular frustum and the annular triangular caulking groove can form a buffering effect on the axial acting force brought by the puncture needle rod, and in this way, the air tightness of the sealing assembly can be effectively improved from the axial matching angle in the operation process of the puncture needle rod.
The puncture sealing assembly according to the present embodiment has substantially the same structure as that of the puncture sealing assembly according to embodiment 2, except that the first annular protrusion 3071 is provided with a first triangular pyramid 3072 with a triangular cross section on the end face facing the first base 201, the corresponding first annular triangular caulking groove 2011 adapted to be engaged with the first annular pyramid 3072 is not provided on the end face of the first base 201 facing the first annular protrusion 3071, and the end face of the first base 201 facing the first annular protrusion 3071 is a flat end face, that is, the first base 201 with a flat end face is deformed by pressing the first annular pyramid 3072, thereby improving the air tightness under the engaged state. The end face of the second annular bulge 3075 facing the fisheye valve 100 is provided with a second annular triangular frustum 3078 with a bulge and a triangular section, the corresponding end face of the fisheye outer ring 101 of the fisheye valve 100 facing the second annular bulge 3075 is not provided with a concave second annular triangular caulking groove 1011 which is suitable for being matched with the second annular triangular frustum 3078, the end face of the fisheye outer ring 101 of the fisheye valve 100 facing the second annular bulge 3075 is a flat end face, namely, extrusion deformation of the fisheye outer ring 101 of the flat end face on the second annular bulge 3075 is formed, and the air tightness of the fisheye valve in a matched state is improved.
Example 5:
Referring to fig. 1, in addition to the puncture sealing assembly of embodiment 2, embodiment 3 or embodiment 4, this embodiment provides a puncture outfit, including: the puncture sealing assembly of example 2 or example 3.
The foregoing embodiments have been provided for the purpose of illustrating the general principles of the present invention, and are more fully described herein with reference to the accompanying drawings, in which the principles of the present invention are shown and described, and in which the general principles of the invention are defined by the appended claims.
In the description of the present invention, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the mechanism or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present invention, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
Claims (10)
1. A fisheye valve adapted for use with a puncture sealing assembly comprising: the device comprises a fish-eye outer ring, a raised fish-eye part integrally formed with the fish-eye outer ring, and a through hole which is suitable for a puncture needle rod to pass through and is arranged in the center of the fish-eye part; wherein the method comprises the steps of
The fish-eye part comprises a first thin-wall part connected with the fish-eye outer ring, a thick-wall part connected with the first thin-wall part, and a second thin-wall part connected with the thick-wall part; the wall thickness of the first thin-wall part and the second thin-wall part is smaller than that of the thick-wall part;
The through hole is formed in the second thin-wall part; and the hole wall of the hole opening of the fish-eye outer ring far away from the through hole is formed with an arc flanging from the inner side of the through hole to the outer side of the through hole along the circumferential direction of the through hole.
2. The fisheye valve of claim 1 wherein the first and second thin wall portions have equal wall thicknesses; and the thickness of the thick wall part is 1.2 to 1.6 times of the thickness of the first thin wall part and the second thin wall part.
3. The fisheye valve of claim 1 wherein the wall thickness of the first thin wall portion and the second thin wall portion are unequal; and the thick wall part has a wall thickness 1.2 to 1.6 times that of the first thin wall part and the second thin wall part, which is larger than the first thin wall part and the second thin wall part.
4. A fish-eye valve according to any one of claims 1 to 3, wherein the height of the arcuate flange along the axial direction of the through hole is 0.3 to 1.0mm.
5. A puncture sealing assembly adapted for use with a puncture instrument, comprising: the fish-eye valve according to any one of claims 1 to 4, a fish-eye valve pressing ring and a sealing seat which are respectively arranged at two axial ends of the fish-eye valve, and a protection pad pressing ring arranged at the end part of the sealing seat far away from the axial direction of the fish-eye valve; wherein the method comprises the steps of
A swinging film is arranged between the protection pad compression ring and the axial direction of the fish-eye valve; the swing film comprises a first base, a second base and an S-shaped connecting part arranged between the first base and the second base; the first base station is suitable for simultaneously abutting against the sealing seat and the protection pad compression ring, and the second base station is used for being matched and fixed with a sleeve cover of the puncture outfit; and
The protection pad clamping ring, the first base, the sealing seat, the fisheye valve and the fisheye valve clamping ring are tightly pressed and fixed along the axial direction of the fisheye valve through a post hole matching structure which is in fit connection.
6. The puncture sealing assembly according to claim 5, wherein the column hole fitting structure comprises a plurality of first columns vertically protruding at intervals along the circumferential direction of the fisheye valve pressing ring on the end face of the fisheye valve pressing ring facing the fisheye valve, a plurality of second columns vertically protruding at intervals along the circumferential direction of the sealing seat on the end face of the sealing seat facing the fisheye valve, a plurality of second column holes adapted to be inserted into the plurality of second columns provided on the end face of the fisheye valve pressing ring facing the fisheye valve, a plurality of first column holes adapted to be inserted into the plurality of first columns provided on the end face of the sealing seat facing the fisheye valve, and a plurality of fitting holes adapted to be penetrated by the plurality of first columns and the plurality of second columns provided on the fisheye valve;
The second pillars and the first pillars are arranged in a staggered manner, namely under the matching of the first pillars and the first pillar holes and the matching action of the second pillars and the second pillar holes and the matching holes, the fisheye valve pressing ring and the sealing seat press and fix the fisheye valve.
7. The puncture sealing assembly according to claim 6, wherein the column hole fitting structure further comprises a plurality of third columns vertically protruding at intervals along the circumferential direction of the protection pad pressing ring on a side end surface of the protection pad pressing ring facing the first base, a plurality of third column holes adapted to be inserted into the third columns are provided on a side end surface of the sealing seat facing the protection pad pressing ring, and a through hole adapted to be penetrated by the third columns is provided on the first base;
Namely, under the cooperation of the third column, the third column hole and the perforation, the protection pad pressing ring and the sealing seat compress and fix the swinging film.
8. The puncture sealing assembly of claim 7, further comprising a seal disposed between the protective pad compression ring and the wobble membrane;
The sealing body comprises an embedded part which is suitable for being embedded between the protection pad compression ring and the first base, a connecting part which is integrally connected with the embedded part to form an L-shaped structure, and a sealing part which is connected with the connecting part;
the sealing body is formed by a plurality of sealing flaps in a butt joint or partial overlapping mode;
The insertion portion is provided with a through hole through which a plurality of third columns pass.
9. The puncture sealing assembly of claim 5, wherein the S-shaped connection comprises a small U-shaped fold connected to the first abutment and a large U-shaped fold connected to the second abutment; wherein the method comprises the steps of
The small U-shaped folding part and the large U-shaped folding part share a side wall; the small U-shaped folding part protrudes from the first base, the large U-shaped folding part protrudes from the second base, and the direction of the small U-shaped folding part protruding relative to the first base is opposite to the direction of the large U-shaped folding part protruding relative to the second base.
10. A puncture device comprising a puncture sealing assembly according to any of claims 5 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910891280.2A CN110495934B (en) | 2019-09-20 | 2019-09-20 | Fisheye valve, puncture sealing assembly and puncture outfit |
| PCT/CN2020/086912 WO2021051815A1 (en) | 2019-09-20 | 2020-04-26 | Fish eye valve, puncture sealing assembly, and puncture device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910891280.2A CN110495934B (en) | 2019-09-20 | 2019-09-20 | Fisheye valve, puncture sealing assembly and puncture outfit |
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| Publication Number | Publication Date |
|---|---|
| CN110495934A CN110495934A (en) | 2019-11-26 |
| CN110495934B true CN110495934B (en) | 2024-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910891280.2A Active CN110495934B (en) | 2019-09-20 | 2019-09-20 | Fisheye valve, puncture sealing assembly and puncture outfit |
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| Country | Link |
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| CN (1) | CN110495934B (en) |
| WO (1) | WO2021051815A1 (en) |
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| CN110495934B (en) * | 2019-09-20 | 2024-09-03 | 江苏健瑞宝医疗科技股份有限公司 | Fisheye valve, puncture sealing assembly and puncture outfit |
| CN111920494B (en) * | 2020-09-01 | 2024-08-02 | 深圳市世格赛思医疗科技有限公司 | Rod piece sealing structure and puncture outfit |
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|---|---|---|---|---|
| CN203539415U (en) * | 2013-09-30 | 2014-04-16 | 常州市新能源吻合器总厂有限公司 | Puncture device with better sealing performance |
| CN106264685A (en) * | 2016-09-26 | 2017-01-04 | 泰戈斯医疗器械（江苏）有限公司 | A kind of perforator |
| CN211022999U (en) * | 2019-09-20 | 2020-07-17 | 常州健瑞宝医疗器械有限公司 | Puncture outfit and puncture sealing assembly thereof |
| CN211022998U (en) * | 2019-09-20 | 2020-07-17 | 常州健瑞宝医疗器械有限公司 | Fisheye valve, puncture sealing assembly and puncture device |
| CN211022997U (en) * | 2019-09-20 | 2020-07-17 | 常州健瑞宝医疗器械有限公司 | Swinging membrane, puncture sealing assembly and puncture outfit |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7976501B2 (en) * | 2007-12-07 | 2011-07-12 | Ethicon Endo-Surgery, Inc. | Trocar seal with reduced contact area |
| US8070730B2 (en) * | 2009-03-27 | 2011-12-06 | Tyco Healthcare Group Lp | Integral insufflation valve |
| US20150223833A1 (en) * | 2014-02-13 | 2015-08-13 | Jared COFFEEN | Trocar seal assembly |
| CN204931808U (en) * | 2015-09-15 | 2016-01-06 | 江苏乾程医疗器械有限公司 | The anti-reverse drawing abdominal cavity puncture outfit of a kind of high-air-tightness |
| CN109259826B (en) * | 2018-08-20 | 2024-03-29 | 荣佳(惠州)医疗器械制造有限公司 | Puncture outfit with high sealing performance |
| CN110495934B (en) * | 2019-09-20 | 2024-09-03 | 江苏健瑞宝医疗科技股份有限公司 | Fisheye valve, puncture sealing assembly and puncture outfit |
-
2019
- 2019-09-20 CN CN201910891280.2A patent/CN110495934B/en active Active
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2020
- 2020-04-26 WO PCT/CN2020/086912 patent/WO2021051815A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203539415U (en) * | 2013-09-30 | 2014-04-16 | 常州市新能源吻合器总厂有限公司 | Puncture device with better sealing performance |
| CN106264685A (en) * | 2016-09-26 | 2017-01-04 | 泰戈斯医疗器械（江苏）有限公司 | A kind of perforator |
| CN211022999U (en) * | 2019-09-20 | 2020-07-17 | 常州健瑞宝医疗器械有限公司 | Puncture outfit and puncture sealing assembly thereof |
| CN211022998U (en) * | 2019-09-20 | 2020-07-17 | 常州健瑞宝医疗器械有限公司 | Fisheye valve, puncture sealing assembly and puncture device |
| CN211022997U (en) * | 2019-09-20 | 2020-07-17 | 常州健瑞宝医疗器械有限公司 | Swinging membrane, puncture sealing assembly and puncture outfit |
Also Published As
| Publication number | Publication date |
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| CN110495934A (en) | 2019-11-26 |
| WO2021051815A1 (en) | 2021-03-25 |
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