CN216854801U - Puncture outfit with reliable sealing - Google Patents
Puncture outfit with reliable sealing Download PDFInfo
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- CN216854801U CN216854801U CN202123040395.2U CN202123040395U CN216854801U CN 216854801 U CN216854801 U CN 216854801U CN 202123040395 U CN202123040395 U CN 202123040395U CN 216854801 U CN216854801 U CN 216854801U
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- 238000007789 sealing Methods 0.000 title claims abstract description 158
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 230000004888 barrier function Effects 0.000 claims description 13
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 210000004907 gland Anatomy 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003292 glue Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a puncture outfit with reliable sealing, which comprises a puncture main body and a choke sealing body, wherein the choke sealing body is arranged on the puncture main body; the puncture main body comprises a sleeve part, an inner pressing seat and an outer pressing seat; the choke seal body includes a seal body, an axial lip, an upper radial lip, and a lower radial lip; the upper radial lip and the lower radial lip are connected to the outer periphery of the sealing body and extend outwards, and a lip groove is formed between the upper radial lip and the lower radial lip; said axial lip being connected to said upper radial lip and extending upwardly; the upper end part of the sleeve part is provided with a butting part which is suitable for butting against the lower end surface of the lower radial lip part; the inner pressing seat is connected to the sleeve part, and a first pressing part which is suitable for being inserted into the lip groove and pressing the lower radial lip part on the abutting part in a sealing mode is arranged on the inner pressing seat. The utility model can improve the sealing performance of the sealing connection between the air-blocking sealing body and the puncture main body and improve the sealing effect.
Description
Technical Field
The utility model relates to a puncture outfit with reliable sealing.
Background
Currently, a puncture outfit is a surgical instrument for providing an instrument channel for minimally invasive surgery, and generally comprises a puncture main body, a puncture rod and a gas barrier sealing body, wherein the outer peripheral part of the gas barrier sealing body needs to be hermetically connected in the puncture main body. The choke sealing body is provided with two sealing lips, when the puncture rod passes through the two sealing lips, the two sealing lips are propped open by the puncture rod, and after the puncture rod is pulled out, the two sealing lips are folded to form sealing. However, the conventional gas barrier seal has poor sealability in the sealing connection between the outer peripheral portion and the puncture body, and may cause leakage.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a puncture outfit with reliable sealing, which can improve the sealing performance of the sealing connection between a gas-barrier sealing body and a puncture main body and improve the sealing effect.
In order to solve the technical problems, the technical scheme of the utility model is as follows: a puncture outfit with reliable sealing comprises a puncture main body and a gas-barrier sealing body;
the puncture body comprises a sleeve part, an inner pressure seat and an outer pressure seat;
the gas barrier seal body includes a seal body, an axial lip, an upper radial lip, and a lower radial lip; wherein,
the upper radial lip and the lower radial lip are connected to the outer periphery of the seal body and extend outwards, and a lip groove is formed between the upper radial lip and the lower radial lip;
said axial lip being connected to said upper radial lip and extending upwardly;
the upper end part of the sleeve part is provided with an abutting part which is suitable for abutting against the lower end surface of the lower radial lip;
the inner pressure seat is connected to the sleeve part, a first pressing part which is suitable for being inserted into the lip groove and pressing the lower radial lip part on the abutting part in a sealing mode is arranged on the inner pressure seat, and the upper end face of the first pressing part is abutted to the lower end face of the upper radial lip part;
the inner pressure seat is also internally provided with a second pressing part which is suitable for abutting against the lower end surface of the lower radial lip;
the outer pressure seat is connected to the inner pressure seat, and the inner peripheral part of the outer pressure seat is provided with a third pressing part which is suitable for pressing the upper radial lip part on the first pressing part in a sealing manner;
and a sealing groove matched with the axial lip is formed in the third pressing part, and the axial lip is embedded in the sealing groove.
Further, an external thread part is arranged on the outer peripheral wall of the internal pressure seat;
an inner threaded part matched with the outer threaded part is arranged on the inner wall of the outer pressing seat;
the external pressure seat is in threaded connection with the internal pressure seat.
Further, a specific structure of the third pressing portion is provided, the third pressing portion includes an inner pressing wall and an outer pressing wall, and the sealing groove is disposed between the inner pressing wall and the outer pressing wall;
the inner wall of the axial lip is provided with at least one inner sealing convex strip which is in sealing butt joint with the inner pressure wall;
and the outer wall of the axial lip is provided with at least one outer sealing convex strip which is in sealing and abutting connection with the outer pressure wall.
In order to further improve the sealing performance, at least one first sealing convex strip which is in sealing contact with the upper end face of the first pressing part is arranged on the lower end face of the upper radial lip part;
the upper end face of the lower radial lip is provided with at least one second sealing convex strip which is in sealing and abutting joint with the lower end face of the first pressing part;
and the lower end face of the lower radial lip is provided with at least one third sealing convex strip which is in sealing and abutting joint with the upper end face of the second pressing part.
Further provided is a concrete structure of the sleeve part, the puncture outfit with reliable seal also comprises a puncture rod, and the sleeve part comprises a sleeve seat and a cannula; wherein,
an inner cavity is arranged in the sleeve seat;
the cannula is hermetically connected to the lower end part of the cannula seat, and an insertion channel communicated with the inner cavity is arranged in the cannula;
and a guiding cone part is arranged at one end part of the insertion channel connected with the inner cavity.
Furthermore, the lower end part of the sealing body is connected with two sealing lips and a closing driving part corresponding to the sealing lips, and the sealing lips and the closing driving part are both positioned in the inner cavity;
the closed driving part is connected to the lower end parts of the corresponding sealing lips, abuts against the cavity wall of the inner cavity and is suitable for driving the two sealing lips to be closed and attached tightly under the action of self elasticity.
Further, a specific structure of the closing driving part is provided, and the closing driving part includes an upper connecting part and a lower connecting part; wherein,
the upper end part of the upper connecting part and the lower end part of the lower connecting part are connected to the corresponding sealing lips;
the lower end of the upper connecting part is connected with the upper end of the lower connecting part to form a corner part, and the corner part is abutted against the cavity wall of the inner cavity.
Furthermore, the puncture outfit with reliable sealing also comprises a gland and a sealing sleeve; wherein,
the gland is connected to the outer pressure seat and tightly presses the peripheral part of the sealing sleeve on the outer pressure seat in a sealing manner;
the inner peripheral part of the sealing sleeve is provided with a wave-shaped lip part, and the wave-shaped lip part comprises a plurality of fold parts which are sequentially arranged along the circumferential direction of the sealing sleeve and are sequentially connected;
and a sealing hole for the puncture rod to pass through is arranged in the wavy lip.
After the technical scheme is adopted, the first pressing part presses the lower radial lip part on the abutting part in a sealing manner, the second pressing part abuts against the lower end face of the lower radial lip part, and the third pressing part presses the upper radial lip part on the first pressing part in a sealing manner; the axial lip is embedded in the sealing groove; the sleeve part, the inner pressing seat and the outer pressing seat are all part of the puncture main body, the outer peripheral part of the gas-barrier sealing body is in sealing connection with the puncture main body through the sleeve part, the inner pressing seat and the outer pressing seat to form multi-sealing, the sealing performance between the gas-barrier sealing body and the puncture main body is improved, the sealing effect is improved, the risk of leakage is reduced, and the reliability is higher.
Drawings
FIG. 1 is a schematic view of the reliable seal of the puncture instrument of the present invention;
FIG. 2 is a schematic view of a partial structure of the reliable seal puncture instrument of the present invention;
FIG. 3 is a partial exploded view of the hermetically sealed penetrator of the present invention;
figure 4 is a schematic view of the structure of the sealing sleeve of the utility model;
fig. 5 is a schematic view of the structure of the gas barrier seal of the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the utility model briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
As shown in fig. 1 to 5, a puncture outfit with reliable sealing comprises a puncture main body 100 and a gas-tight sealing body 200;
the puncture body 100 comprises a cannula part 1, an inner pressure seat 2 and an outer pressure seat 3;
the gas barrier seal body 200 comprises a seal body 4, an axial lip 5, an upper radial lip 6 and a lower radial lip 7; wherein,
the upper radial lip 6 and the lower radial lip 7 are both connected to the outer periphery of the seal body 4 and extend outward, and a lip groove 8 is formed between the upper radial lip 6 and the lower radial lip 7;
said axial lip 5 being connected to said upper radial lip 6 and extending upwards;
the upper end of the sleeve part 1 is provided with an abutment 9 adapted to abut against the lower end face of the lower radial lip 7;
the inner pressure seat 2 is connected to the sleeve part 1, a first pressing part 10 which is suitable for being inserted into the lip groove 8 and pressing the lower radial lip 7 on the abutting part 9 in a sealing manner is arranged on the inner pressure seat 2, and the upper end surface of the first pressing part 10 is abutted against the lower end surface of the upper radial lip 6;
the inner pressure seat 2 is also provided with a second pressing part 11 which is suitable for abutting against the lower end surface of the lower radial lip 7; in this embodiment, the inner pressing base 2 may be adhered to the sleeve member 1 by glue;
the outer pressing seat 3 is connected to the inner pressing seat 2, and the inner peripheral part of the outer pressing seat 3 is provided with a third pressing part 12 which is suitable for pressing the upper radial lip part 6 on the first pressing part 10 in a sealing way;
a sealing groove 13 matched with the axial lip 5 is formed in the third pressing part 12, and the axial lip 5 is embedded in the sealing groove 13; specifically, the sleeve member 1, the inner pressing seat 2 and the outer pressing seat 3 are all part of the puncture body 100, and the outer circumferential portion of the gas barrier seal 200 is hermetically connected with the puncture body 100 by the sleeve member 1, the inner pressing seat 2 and the outer pressing seat 3 to form a plurality of seals, so that the sealing performance between the gas barrier seal 200 and the puncture body 100 is improved, the sealing effect is improved, the risk of leakage is reduced, and the reliability is higher.
As shown in fig. 1 to 3, an external thread part is arranged on the outer peripheral wall of the inner pressing seat 2;
an inner threaded part matched with the outer threaded part is arranged on the inner wall of the outer pressing seat 3;
the external pressure seat 3 is in threaded connection with the internal pressure seat 2.
As shown in fig. 2 and 3, the third pressing portion 12 may include an inner pressing wall 14 and an outer pressing wall 15, and the sealing groove 13 is disposed between the inner pressing wall 14 and the outer pressing wall 15;
the inner wall of the axial lip part 5 can be provided with at least one inner sealing convex strip 16 which is in sealing and abutting joint with the inner pressure wall 14;
the outer wall of the axial lip portion 5 may be provided with at least one external sealing convex strip 17 which is in sealing contact with the external pressure wall 15, and the internal sealing convex strip 16 and the external sealing convex strip 17 can improve the sealing performance between the axial lip portion 5 and the third pressing portion 12.
As shown in fig. 2 and 3, at least one first sealing rib 18 which is in sealing contact with the upper end surface of the first pressing portion 10 may be provided on the lower end surface of the upper radial lip 6;
at least one second sealing convex strip 19 which is in sealing contact with the lower end face of the first pressing part 10 can be arranged on the upper end face of the lower radial lip part 7;
at least one third sealing convex strip 20 which is in sealing contact with the upper end face of the second pressing part 11 can be arranged on the lower end face of the lower radial lip part 7; in this embodiment, two sealing ribs 16, two sealing ribs 17, two sealing ribs 18, and two sealing ribs 19 are provided, and one sealing rib 20 is provided.
As shown in fig. 1 and 2, the reliable-seal puncture outfit may further comprise a puncture rod 300, and the cannula component 1 may comprise a cannula holder 21 and a cannula 22; wherein,
an inner cavity 23 is arranged in the sleeve seat 21;
the cannula 22 is connected to the lower end of the cannula holder 21 in a sealing manner, and an insertion channel 24 communicated with the inner cavity 23 is arranged in the cannula 22;
the end part of the insertion channel 24 connected with the inner cavity 23 is provided with a guiding conical part 25; specifically, the penetration rod 300 is adapted to be inserted into the insertion channel 24 after passing through the lumen 23, the guiding cone 25 is adapted to guide the penetration rod 300 to be inserted into the insertion channel 24, and an O-ring is provided between the cannula 22 and the cannula holder 21.
As shown in fig. 2 and 5, two sealing lips 26 and a closing driving portion 27 corresponding to the sealing lips 26 are connected to the lower end of the sealing body 4, and both the sealing lips 26 and the closing driving portion 27 are located in the inner cavity 23;
the closing driving part 27 is connected to the lower end part of the corresponding sealing lip 26, abuts against the cavity wall of the inner cavity 23 and is suitable for driving the two sealing lips 26 to close and cling to each other under the action of self elasticity; specifically, when the puncture rod 300 passes through the space between the two sealing lips 26, the two sealing lips 26 are spread, and the closing driving portion 27 abuts against the cavity wall of the inner cavity 23, so that the closing driving portion 27 is compressed when the sealing lips 26 are spread, and further when the puncture rod 300 is pulled out, the closing driving portion 27 can drive the two sealing lips 26 to be quickly closed under the action of self elasticity and can drive the two sealing lips 26 to be closed more tightly, so that the sealing performance is improved. Of course, the two sealing lips 26 have a certain resilience and return to the closed state by themselves, but the closing is slow and not tight only by the resilience of the two sealing lips 26. More specifically, the closing drive portion 27, the sealing lip 26, the sealing body 4, the axial lip portion 5, the upper radial lip portion 6, and the lower radial lip portion 7 form the gas barrier sealing body 200 as a whole, and the gas barrier sealing body 200 is made of rubber or silicone rubber, and thus has a certain resilience.
As shown in fig. 2 and 5, the closing driving part 27 may include an upper connecting part 28 and a lower connecting part 29; wherein,
the upper end part of the upper connecting part 28 and the lower end part of the lower connecting part 29 are connected to the corresponding sealing lip 26;
the lower end part of the upper connecting part 28 is connected with the upper end part of the lower connecting part 29 to form a corner part which is abutted against the cavity wall of the inner cavity 23; in the present embodiment, the seal lips 26 correspond to the closing driving portions 27 one by one.
As shown in fig. 1, 2 and 4, the reliable-seal puncture outfit can further comprise a gland 30 and a sealing sleeve 31; wherein,
the gland 30 is connected to the outer pressure seat 3 and hermetically presses the outer peripheral portion of the gland 31 against the outer pressure seat 3;
the inner peripheral part of the sealing sleeve 31 is provided with a wave-shaped lip part 32, and the wave-shaped lip part 32 comprises a plurality of fold parts 33 which are sequentially arranged along the circumferential direction of the sealing sleeve 31 and are sequentially connected;
the wavy lip 32 is provided with a sealing hole 34 for the puncture rod 300 to pass through; specifically, the puncture rod 300 penetrates through the sealing hole 34 to form a sealing fit with the sealing hole 34, and then the two sealing lips 26 in the choke sealing body 200 are separated, so as to prevent air leakage. Since the corrugated lip 32 has the corrugated portion 33, the corrugated portion 33 can be slightly unfolded when the puncture rod 300 passes through the seal hole 34, so that the holding force on the puncture rod 300 can be reduced, the resistance to the puncture rod 300 or other medical instruments passing through the seal hole 34 can be reduced, and the use is more convenient. More specifically, the pressing cover 30 may also be bonded to the outer pressing base 3 by glue.
The working principle of the utility model is as follows:
the first pressing part 10 presses the lower radial lip 7 on the abutting part 9 in a sealing manner, the second pressing part 11 abuts against the lower end face of the lower radial lip 7, and the third pressing part 12 presses the upper radial lip 6 on the first pressing part 10 in a sealing manner; the axial lip 5 is embedded in the seal groove 13; the sleeve member 1, the inner pressure seat 2 and the outer pressure seat 3 are all part of the puncture body 100, and the outer peripheral part of the gas barrier seal 200 is hermetically connected with the puncture body 100 through the sleeve member 1, the inner pressure seat 2 and the outer pressure seat 3 to form a plurality of seals, so that the sealing performance between the gas barrier seal 200 and the puncture body 100 is improved, the sealing effect is improved, the risk of leakage is reduced, and the reliability is higher.
The above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A puncture outfit with reliable sealing is characterized in that,
it comprises a puncture main body (100) and a gas-barrier sealing body (200);
the puncture body (100) comprises a sleeve part (1), an inner pressure seat (2) and an outer pressure seat (3);
the gas barrier seal (200) comprises a seal body (4), an axial lip (5), an upper radial lip (6) and a lower radial lip (7); wherein,
the upper radial lip (6) and the lower radial lip (7) are connected to the outer periphery of the seal body (4) and extend outwards, and a lip groove (8) is formed between the upper radial lip (6) and the lower radial lip (7);
said axial lip (5) being connected to said upper radial lip (6) and extending upwards;
the upper end part of the sleeve part (1) is provided with an abutting part (9) which is suitable for abutting against the lower end surface of the lower radial lip part (7);
the inner pressing seat (2) is connected to the sleeve part (1), a first pressing part (10) which is suitable for being inserted into the lip groove (8) and pressing the lower radial lip (7) on the abutting part (9) in a sealing mode is arranged on the inner pressing seat (2), and the upper end face of the first pressing part (10) is abutted to the lower end face of the upper radial lip (6);
a second pressing part (11) which is suitable for abutting against the lower end surface of the lower radial lip (7) is further arranged in the inner pressure seat (2);
the outer pressing seat (3) is connected to the inner pressing seat (2), and the inner peripheral part of the outer pressing seat (3) is provided with a third pressing part (12) which is suitable for pressing the upper radial lip part (6) on the first pressing part (10) in a sealing manner;
and a sealing groove (13) matched with the axial lip (5) is arranged in the third pressing part (12), and the axial lip (5) is embedded in the sealing groove (13).
2. The reliable seal penetrator of claim 1,
the outer peripheral wall of the inner pressing seat (2) is provided with an outer thread part;
an inner threaded part matched with the outer threaded part is arranged on the inner wall of the outer pressing seat (3);
the external pressure seat (3) is in threaded connection with the internal pressure seat (2).
3. The reliable seal penetrator of claim 1,
the third pressing portion (12) comprises an inner pressing wall (14) and an outer pressing wall (15), and the sealing groove (13) is arranged between the inner pressing wall (14) and the outer pressing wall (15);
the inner wall of the axial lip part (5) is provided with at least one inner sealing convex strip (16) which is in sealing and abutting joint with the inner pressure wall (14);
the outer wall of the axial lip (5) is provided with at least one outer sealing convex strip (17) which is in sealing and abutting connection with the outer pressure wall (15).
4. The reliable seal penetrator of claim 1,
the lower end face of the upper radial lip (6) is provided with at least one first sealing convex strip (18) which is in sealing and abutting joint with the upper end face of the first pressing part (10);
the upper end face of the lower radial lip (7) is provided with at least one second sealing convex strip (19) which is in sealing contact with the lower end face of the first pressing part (10);
and the lower end face of the lower radial lip (7) is provided with at least one third sealing convex strip (20) which is in sealing and abutting joint with the upper end face of the second pressing part (11).
5. A puncture instrument with reliable seal according to claim 1, characterized by further comprising a puncture rod (300), wherein the cannula part (1) comprises a cannula holder (21) and a cannula (22); wherein,
an inner cavity (23) is arranged in the sleeve seat (21);
the cannula (22) is connected to the lower end part of the cannula seat (21) in a sealing way, and an insertion channel (24) communicated with the inner cavity (23) is arranged in the cannula (22);
the end of the insertion channel (24) connected with the inner cavity (23) is provided with a guiding cone part (25).
6. The reliable seal penetrator of claim 5,
the lower end part of the sealing body (4) is connected with two sealing lips (26) and a closing driving part (27) corresponding to the sealing lips (26), and the sealing lips (26) and the closing driving part (27) are both positioned in the inner cavity (23);
the closing driving part (27) is connected to the lower end part of the corresponding sealing lip (26), abuts against the cavity wall of the inner cavity (23) and is suitable for driving the two sealing lips (26) to be closed and attached under the action of self elasticity.
7. A reliable seal piercer according to claim 6 wherein said closure drive (27) comprises an upper connection (28) and a lower connection (29); wherein,
the upper end part of the upper connecting part (28) and the lower end part of the lower connecting part (29) are connected to the corresponding sealing lips (26);
the lower end part of the upper connecting part (28) is connected with the upper end part of the lower connecting part (29) to form a corner part, and the corner part is abutted against the cavity wall of the inner cavity (23).
8. The puncture instrument with reliable seal according to claim 5, further comprising a gland (30) and a sealing sleeve (31); wherein,
the gland (30) is connected to the outer pressure seat (3) and hermetically presses the outer peripheral part of the sealing sleeve (31) on the outer pressure seat (3);
the inner peripheral part of the sealing sleeve (31) is provided with a wave-shaped lip part (32), and the wave-shaped lip part (32) comprises a plurality of corrugated parts (33) which are sequentially arranged along the circumferential direction of the sealing sleeve (31) and are sequentially connected;
the wavy lip (32) is provided with a sealing hole (34) for the puncture rod (300) to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123040395.2U CN216854801U (en) | 2021-12-06 | 2021-12-06 | Puncture outfit with reliable sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123040395.2U CN216854801U (en) | 2021-12-06 | 2021-12-06 | Puncture outfit with reliable sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216854801U true CN216854801U (en) | 2022-07-01 |
Family
ID=82127349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123040395.2U Active CN216854801U (en) | 2021-12-06 | 2021-12-06 | Puncture outfit with reliable sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216854801U (en) |
-
2021
- 2021-12-06 CN CN202123040395.2U patent/CN216854801U/en active Active
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