CN109793975A - Locking device and plugging system - Google Patents
Locking device and plugging system Download PDFInfo
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- CN109793975A CN109793975A CN201711121200.2A CN201711121200A CN109793975A CN 109793975 A CN109793975 A CN 109793975A CN 201711121200 A CN201711121200 A CN 201711121200A CN 109793975 A CN109793975 A CN 109793975A
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Abstract
The present invention relates to a kind of locking devices, including locking cap and locking pedestal, further include retaining ring, the retaining ring is resilient annular body；The locking cap includes the first side wall, and the first side wall surrounds the first cavity, and the first side wall is equipped with the first screw thread；The locking pedestal includes second sidewall, and the second sidewall surrounds the second cavity, and the second sidewall is equipped with the second screw thread and is formed with first step, and the retaining ring is contained in second cavity；When first screw thread is threadedly engaged with described second connect the locking cap and the locking pedestal, the distal end of the first side wall, which compresses the retaining ring, abuts the one end of the retaining ring far from the first side wall with the step surface of the first step.The invention further relates to a kind of plugging systems based on the locking device.Locking device of the invention can greatly reduce the risk of the cavity of be collapsed conduit while locking conduit.
Description
Technical field
The present invention relates to foley's tube technical field more particularly to a kind of locking devices and plugging system.
Background technique
Foley's tube is widely used in minimally invasive intervention diagnosis and treatment operation, narrow, the resistance that can be used in expansion cavity
Clinopodium polycephalum, the lumen for blocking rupture, positioning targeting conveying drug etc..Blocking foley's tube is one of foley's tube,
Effect is interruption artery blood flow, can be used in the emergent management operation done after aneurysm Natural Ruptures, or in order to cope with blood vessel
Endoprosthesis treats the aneurysmal aneurysm rupture risk being likely to occur in the process, makes in the course of surgery as acknowledgment copy
With.
The mechanism of action for blocking foley's tube is to utilize the bulbs of pressure of sacculus, tightly touch intravascular space, is produced to inner cavity
The extruding force of a raw radial direction and the stiction of an axial direction, the stiction of generation can be used to resist blood flow to sacculus just
To thrust, slow down sacculus with respect to the displacement that blood vessel generates.However, since blood flow at this time is totally blocked, and sacculus is at its proximal end
Bifurcated again it is smaller, blood stream pressure can not be discharged, cause sacculus bear thrust suddenly increase.It is greater than stiction in thrust
When, sacculus will generate offset relative to the block-up position in inner cavity.
In order to solve the problems, such as that sacculus is blocking blood vessel to be also easy to produce offset when blocking blood flow, it is thus proposed that one kind is equipped with fixed
The foley's tube of position part, though the foley's tube is able to solve sacculus and is blocking blood vessel to be also easy to produce asking for offset when blocking blood flow
Topic, but the new problem being also introduced into simultaneously: the friction portion of locating piece is in clamping tube body, due to acting on the distribution of the power on tube body
Compare concentration, is easy the cavity of be collapsed conduit.
Summary of the invention
Based on this, it is necessary to for the cavity for being fixed on supravasal locating piece in clamping tube body and being easy be collapsed conduit
Technical problem provides the locking device and plugging system of a kind of cavity that be collapsed conduit is not easy in clamping tube body.
A kind of locking device, including locking cap and locking pedestal, the locking device further includes retaining ring, the retaining ring
For resilient annular body；The locking cap includes the first side wall, and the first side wall surrounds the first cavity, and on the first side wall
Equipped with the first screw thread；The locking pedestal includes second sidewall, and the second sidewall surrounds the second cavity, in the second sidewall
Equipped with the second screw thread and it is formed with first step, the retaining ring is contained in second cavity；When first screw thread with
Described second is threadedly engaged when connecting the locking cap with the locking pedestal, and the distal end of the first side wall compresses the lock
Tight ring abuts the one end of the retaining ring far from the first side wall with the step surface of the first step.
The step surface of the first step is using one end close to second cavity as origin in one of the embodiments,
It is tilted towards the proximal end of second cavity.
One end that the retaining ring is abutted with the step surface of the first step in one of the embodiments, is with the lock
The inner ring surface of tight ring is one end inclination that origin is directed away from the step surface.
Be formed with second step on the inner wall of the second sidewall in one of the embodiments, the second step with
The first step forms interval, and the second step is located at one end close to the locking cap of the first step；Institute
The distal end for stating the first side wall is formed with third step；First screw thread and described second is threadedly engaged and makes the locking cap and institute
When stating locking pedestal connection, the step surface of the step surface of the second step and the third step is abutted.
The first side wall includes first wall, second wall and third branch wall in one of the embodiments, and described the
One wall surrounds first cavity, and second wall is sheathed on the periphery of first wall, second wall and institute
State first wall and surround third cavity, and the proximal end of second wall and first wall proximally by the third branch
Wall connection.
In one of the embodiments, first screw thread be set to second wall proximal end inside, described second
Screw thread is set to the outside of the proximal end of the second sidewall.
It is equipped with the first protruding portion in the inside of the distal end of second wall in one of the embodiments, described the
The outside of the proximal end of two side walls is equipped with the second protruding portion, and when second protruding portion protrudes into the third cavity and slips over institute
After stating the first protruding portion, first protruding portion is abutted with second protruding portion.
In one of the embodiments, first screw thread be set to the first side wall proximal end outside, described second
Screw thread is set to the inside of the proximal end of the second sidewall, and internal diameter of the second sidewall in proximal end is greater than the first side wall and exists
The outer diameter of proximal end.
The step surface of the first step is using one end close to second cavity as origin in one of the embodiments,
The inclined angle in proximal end towards second cavity is 20 degree of -45 degree.
The step surface of the first step is using one end close to second cavity as origin in one of the embodiments,
The inclined angle in proximal end towards second cavity is 20 degree of -45 degree, the step surface of the retaining ring and the first step
One end of abutting be directed away from by origin of the inner ring surface of the retaining ring the inclined angle in one end of the step surface be 20 degree-
45 degree.
The conveyer includes handle in one of the embodiments, and the conduit of the foley's tube passes through the handle,
And one end of the conduit is connect with the sacculus of the foley's tube, which is characterized in that the plugging system further includes above-mentioned
Locking device described in one；The locking cap, the retaining ring and the locking pedestal of the locking device are sheathed on respectively
One end far from the sacculus of the conduit, and the locking pedestal is connect with the proximal end of the handle.
The locking pedestal and the handle are integrally formed in one of the embodiments,.
The locking cap and locking pedestal of above-mentioned locking device all have cavity, and retaining ring is ring bodies, thus lock dress
Setting entirety can be set on a tubular articles, for intervening the conduit in medical field, when locking cap is close along conduit
Until the first screw thread is threadedly engaged when connecting locking cap and locking pedestal with second, the distal end of the first side wall compresses locking pedestal
Retaining ring, so that retaining ring radially shrink by mode.Since locking ring set is on conduit, thus it is radially square in retaining ring
Meeting radial compression conduit when formula is shunk, so that the stiction of an axial direction is generated, so that the locking cap and lock that link together
Tight pedestal can be locked on conduit.And since locking device is when locking conduit, acting on supravasal power is to be uniformly distributed
, rather than stress is concentrated to some position of conduit, thus substantially reduce the risk of the cavity of be collapsed conduit.Another party
The structure in face, locking device is simple and convenient for operation, can be used as individual part use when needing to lock conduit, without relying on it
The cooperation of his component, versatility is stronger, and locking device can be quickly fixed on to any object through locking device
Any position is freed from locked position.
Detailed description of the invention
Fig. 1 is that the locking device of embodiment 1 is sheathed on supravasal structural schematic diagram；
Fig. 2 is the perspective view of the locking cap of the locking device of embodiment 1；
Fig. 3 is the perspective view of the locking pedestal of the locking device of embodiment 1；
Fig. 4 (a) is the perspective view of the retaining ring of the locking device of embodiment 1；
Fig. 4 (b) is the perspective view of the retaining ring of the locking device of embodiment 2；
Fig. 5 is that the locking device of embodiment 2 is sheathed on supravasal structural schematic diagram；
Fig. 6 is that the locking device of embodiment 3 is sheathed on supravasal structural schematic diagram；
Fig. 7 is that the locking device of embodiment 4 is sheathed on supravasal structural schematic diagram；
Fig. 8 is that the locking device of embodiment 5 is sheathed on supravasal structural schematic diagram；
Fig. 9 is the structural schematic diagram of the plugging system of embodiment 6；
Figure 10 is the handle of conveyer and the locking integrally formed structural schematic diagram of pedestal in the plugging system of embodiment 6；
Figure 11 is the structure of the handle of conveyer and locking pedestal one of which connection type in the plugging system of embodiment 6
Schematic diagram.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It should be noted that instrument is generally known as proximal end apart from the closer one end of operator in intervention medical field, it will
Instrument is known as distal end apart from the farther away one end of operator.
Below with reference to the specific embodiment technical solution that present invention be described in more detail.
Embodiment 1
Referring to FIG. 1, the locking device 100 of embodiment 1 is sheathed on the periphery of a hollow conduit 200, locking device
100 include locking cap 110, locking pedestal 120 and retaining ring 130.Locking cap 110 includes the first side wall 111 (please referring to Fig. 2),
The first side wall 111 is equipped with the first screw thread 112, and the first side wall 111 surrounds the first cavity 113 (please referring to Fig. 2).Lock pedestal
120 include second sidewall 121 (please referring to Fig. 3), and second sidewall 121 surrounds the second cavity 123 (please referring to Fig. 3), second sidewall
121 are equipped with the second screw thread 122, are formed with first step 124 in second sidewall 121, and the second cavity 123 at its proximal end interior
Diameter is greater than its internal diameter at the far end.Retaining ring 130 is resilient annular body (please referring to Fig. 4 (a)), is sheathed on the periphery of conduit 200
And it is contained in the second cavity 123, and the distal end of retaining ring 130 is abutted with the step surface of first step 124.130 energy of retaining ring
Outer wall enough for conduit 200 provides equally distributed stiction, and will not damage conduit 200.
Preferably, the first side wall 111 include first wall, 1111, second walls 1112 and third branch wall 1113, first
Wall 1111 surrounds the first cavity 113, and second wall 1112 is sheathed on the periphery of first wall 1111, and second wall 1112 is close
It holds and to be connect with first wall 1111 proximally by third branch wall 1113, first wall, 1111, second walls 1112 and third branch
Wall 1113 surrounds third cavity 114, and third branch wall 1113 closes third cavity 114 in the open end of proximal end.First wall 1111
It can be the tubular body of inner hollow, conduit 200 can pass through the first cavity 113 inside first wall 1111.Second wall
1112 can be the tubular body of inner hollow, be sheathed on the periphery of first wall 1111.Locking equipped with second wall 1112
Cap 110 holds locking cap 110 convenient for operator, and will not touch the first screw thread 112 on locking cap 110.
On locking pedestal 120, using the step surface of first step 124 as boundary, second sidewall 121 can be divided into the 4th
Branch wall 1211 and the 5th wall 1212, the 4th wall 1211 are located at the proximal part of second sidewall 121, and the 5th wall 1212 is located at
The distal portions of second sidewall 121, the internal diameter of the 4th wall 1211 are greater than the internal diameter of the 5th wall 1212.
Preferably, the first screw thread 112 is set to the inside of the proximal end of second wall 1112, and the second screw thread 122 is set to second side
The outside (namely the second screw thread 122 is set on periphery of the 4th wall 1211) of the proximal end of wall 121.When locking pedestal 120 and locking
When cap 110 is sheathed on the periphery of conduit 200 and relative movement, the 4th wall 1211 can be protruded into third cavity 114, and revolve
After turning locking cap 110, the first screw thread 112 can be threadedly coupled in third cavity 114 with the second screw thread 122.First
When the cooperation of screw thread 112 and the second screw thread 122 is threadedly coupled, the distal end of the first side wall 111 (namely first wall 1111 is remote
End) retaining ring 130 will be compressed towards the step surface of first step 124, make the one end of retaining ring 130 far from the first side wall 111 with
The step surface of first step 124 abuts.Elastic deformation occurs for retaining ring 130 at this time, and the internal diameter of retaining ring 130 shrinks and generates work
For the pressure on conduit 200, so that the internal diameter of 200 part of conduit contacted with retaining ring 130 is shunk, and then make retaining ring
Stiction between 130 and conduit 200 increases, to locking pedestal 120 is fixed on conduit 200, due to locking pedestal
120 connect with locking cap 110 at this time, thus are equal to and locking device 100 is fixed on conduit 200.
The locking device 100 of embodiment 1, since the power acted on conduit 200 when locking conduit 200 is to be uniformly distributed
, rather than stress is concentrated to some position of conduit 200, thus substantially reduce the risk of the cavity of be collapsed conduit 200.Separately
On the one hand, the structure of locking device 100 is simple and convenient for operation, can be used as individual part use when needing to lock conduit 200,
Without relying on the cooperation of other component, versatility is stronger, and quickly locking device 100 can be fixed on through locking device
Any position of 100 any object is freed from locked position.
Embodiment 2
The locking device of embodiment 2 part identical with the locking device of embodiment 1 repeats no more.Referring to FIG. 5, in reality
It applies in the locking device 300 of example 2, the step surface of first step 324 is (to please refer to the second cavity in Fig. 3 close to the second cavity 323
123) one end is that origin is tilted towards the proximal end of the second cavity 323, and inclined angle is α, in first 3111 court of wall
When compressing retaining ring 330 to the step surface of first step 324, the internal diameter contraction of retaining ring 330 is more significant and quick, increases
The pressure on conduit 200 is acted on, is increased so that the internal diameter of 200 part of conduit contacted with retaining ring 330 is shunk, and then make to lock
Stiction between tight ring 330 and conduit 200 further increases, so that locking device 300 is tightly secured in conduit 200
On.
Further, in another embodiment, one end that retaining ring 330 is abutted with the step surface of first step 324 is to lock
The inner ring surface of tight ring 330 is one end inclination for the step surface that origin is directed away from first step 324, and inclined angle is β.?
The step surface of first step 324 is using one end of close second cavity 323 as the proximal end tilt angle of origin the second cavity 323 of direction
α, and one end that retaining ring 330 is abutted with the step surface of first step 324 is directed away from using the inner ring surface of retaining ring 330 as origin
In the case where one end inclination angle beta of the step surface of first step 324, when first wall 3111 compresses retaining ring 330, first
The step surface of step 324 act on the power being subject on the surface with tilt angle of retaining ring 330 can be distributed it is more uniform, and
It is converted into the power meeting relative increase of 330 radial compression conduit 200 of retaining ring, locking device 300 is preferably locked at
On conduit 200.Fig. 4 (b) is please referred to, the inner ring surface of retaining ring 330 refers in retaining ring 330 around the cavity of retaining ring 330 (figure
Do not mark) medial surface.
Wherein, the value of α and β is generally in the range of 1 degree of -70 degree, it is preferable that α is 20 degree -45 degree, β for 20 degree -
45 degree.
Embodiment 3
The locking device of embodiment 3 part identical with the locking device of embodiment 2 repeats no more.Referring to FIG. 6, implementing
In the locking device 400 of example 3, locks and be formed with second step 425, second step on the inner wall of the second sidewall 421 of pedestal 420
425 are set to the inside of second sidewall 421 and the proximal end (being in the inside of the 4th wall 4211) in first step 424, the
Internal diameter of two cavitys 423 (please referring to the second cavity 123 in Fig. 3) in the proximal end of second step 425 is greater than it in second step 425
Distal end internal diameter.
Locking cap 410 further includes third step 415, and third step 415 is set to the first side wall 411 and (please refers to first in Fig. 2
Side wall 111) distal end periphery (periphery of the distal end of i.e. first wall 4111), and the first side wall 411 is in third step 415
The outer diameter of distal end is less than it in the outer diameter of the proximal end of third step 415.When locking pedestal 420 and locking cap 410 are sheathed on and lead
The periphery of pipe 200 and relative movement until second step 425 step surface and third step 415 step face contact when, second
Step 425 is mutually supported with third step 415.
The cooperation of second step 425 and third step 415 can control retaining ring 430 axial by the first side wall 411
Elastically-deformable degree occurs after extruding, elastically-deformable degree occurs for retaining ring 430 can be by the compression ratio (L2- of retaining ring 430
L1)/L3 is characterized.L1For the distance between distal end and the proximal end of retaining ring 430 of first wall 4111, L2 is second step
425 step surface and the distance between the step surface of third step 415, L3 are the axial length of retaining ring 430.By a large amount of
It is found after experimental analysis, the compression ratio of retaining ring 430 is between 0.3-0.7, can when being preferably between 0.45-0.55
Make to lock pedestal 420 around package locking cap 410 to provide enough frictional force, and can prevent 430 radial transition of retaining ring from squeezing
It presses and be collapsed conduit 200.
Embodiment 4
The locking device of embodiment 4 part identical with the locking device of embodiment 3 repeats no more.Referring to FIG. 7, implementing
In the locking device 500 of example 4, it is equipped with the first protruding portion 516 in the inside of the distal end of second wall 5112, in second sidewall 521
The outside of the proximal end of (please referring to second sidewall 121 in Fig. 3) is equipped with the second protruding portion 526, and when the second protruding portion 526 protrudes into the
In three cavitys 514 and after slipping over the first protruding portion 516, the first protruding portion 516 is supported with the second protruding portion 526 in relative movement
It connects.When the second screw thread 522 is set to the outside of the proximal end of second sidewall 521, it is preferable that the second protruding portion 526 and the second screw thread
522 distal end connection.
The second protruding portion 526 being arranged on the first protruding portion 516 and locking pedestal 520 being arranged on locking cap 510 is matched
It closes and uses, the proximal end for locking pedestal 520 can be fastened on lock by the initial phase of 510 precession of locking cap locking pedestal 520
The distal end of tight cap 510, so that locking cap 510 is not susceptible to fall off in also non-precession locking pedestal 520.
Embodiment 5
The locking device of embodiment 5 part identical with the locking device of embodiment 4 repeats no more.Referring to FIG. 8, implementing
In the locking device 600 (figure is not marked) of example 5, the first screw thread 612 is set to the outside of the proximal end of the first side wall 611, the second screw thread 622
Set on the inside of the proximal end of second sidewall 621, and internal diameter of the second sidewall 621 in proximal end is greater than the first side wall 611 in proximal end
Outer diameter.
Embodiment 6
Referring to FIG. 9, embodiment 6 proposes a kind of plugging system, including conveyer 700, foley's tube 800 and locking device
900, wherein locking device 900 can be the locking device in any of the above-described embodiment, and details are not described herein for identical part.
Conveyer 700 includes delivery conduit 710 and the handle 720 connecting with the proximal end of delivery conduit 710, during transportation, conveying
After conduit 710 percutaneously penetrates human body or animal body, since handle 720 is more much greater than the hole of percutaneous puncture, because without with
Delivery conduit 710 enters in vivo.Foley's tube 800 successively includes puncture needle 810, sacculus 820, conduit from distal end to proximal end
830 and pedestal 840.The distal end of foley's tube 800 can be pierced by from the distal end of delivery conduit 710, after the expansion of sacculus 820, ball
Blood flow where capsule 820 can block at blood vessel.The proximal end of foley's tube 800 is pierced by from the proximal end of handle 720, locking device 900
It is sheathed on the periphery of the conduit 830 of foley's tube 800, locking pedestal 920 (figure is not marked) is close with the handle 720 of conveyer 700
End connection.When locking cap 910 (figure is not marked) does not cooperate with locking pedestal 920, locking cap 910 and locking pedestal 920 can edges
It is axially moved, so that locked position can be adjusted freely as needed.Gluing, card can be passed through with handle 720 by locking pedestal 920
The modes such as button, screw thread are fixedly connected, and can also be connected by a connection piece, connection type is unrestricted.In another embodiment,
Referring to FIG. 10, the handle 720 of locking pedestal 1020 and conveyer 700 (figure is not marked) is integrally formed.
Please refer to Figure 11, the proximal end of handle 720 is equipped with an open slot 721, and the aperture position apart from open slot 721 compared with
Close inner wall is equipped with a flexible fastening circle 722, and the center of flexible fastening circle 722 is equipped with an aperture (figure is not marked), and sacculus is led
The conduit 830 of pipe 800 (figure is not marked) can pass through the aperture.The internal diameter for locking the distal end of pedestal 920 is slightly less than open slot 721
Radial internal diameter, and after the distal end for locking pedestal 920 is filled in open slot 721, lock distal end and the flexible fastening circle of pedestal 920
722 Elastic Contacts simultaneously generate axial friction, so that the distal end of locking pedestal 920 is capable of fixing the open slot 721 in handle 720
It is interior.
It is fixed together when locking pedestal 920 with handle 720, and locks pedestal 920 and be also secured at together with locking cap 910
When, locking device 900 remains static relative to handle 720.It will not occur due to handle 720 relative to percutaneous puncture mouth again
It is mobile, thus the conduit 830 that the device 900 that is locked tightly locks cannot be mobile towards the direction of sacculus 820 (figure is not marked) again, from
And realize the anchoring to sacculus 820, so that sacculus 820 is not easy to shift towards the mobile direction of blood flow.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (12)
1. a kind of locking device, including locking cap and locking pedestal, which is characterized in that the locking device further includes retaining ring,
The retaining ring is resilient annular body；The locking cap includes the first side wall, and the first side wall surrounds the first cavity, and described
The first side wall is equipped with the first screw thread；The locking pedestal includes second sidewall, and the second sidewall surrounds the second cavity, described
Second sidewall is equipped with the second screw thread and is formed with first step, and the retaining ring is contained in second cavity；When described
First screw thread is threadedly engaged when connecting the locking cap and the locking pedestal with described second, the distal end of the first side wall
Compressing the retaining ring abuts the one end of the retaining ring far from the first side wall with the step surface of the first step.
2. locking device according to claim 1, which is characterized in that the step surface of the first step is close to described the
One end of two cavitys is that origin is tilted towards the proximal end of second cavity.
3. locking device according to claim 2, which is characterized in that the step surface of the retaining ring and the first step
One end of abutting is tilted using one end that the inner ring surface of the retaining ring is directed away from the step surface as origin.
4. locking device according to claim 1, which is characterized in that be formed with second on the inner wall of the second sidewall
Rank, the second step and the first step, which are formed, to be spaced, and the second step is located at the close institute of the first step
State one end of locking cap；The distal end of the first side wall is formed with third step；First screw thread and second screw thread are matched
When conjunction connects the locking cap with the locking pedestal, the step surface of the step surface of the second step and the third step
It abuts.
5. locking device according to claim 1, which is characterized in that the first side wall includes first wall, second
Wall and third branch wall, first wall surround first cavity, and second wall is sheathed on the outer of first wall
Week, second wall and first wall surround third cavity, and the proximal end of second wall and first wall
Proximally by the third branch wall connect.
6. locking device according to claim 5, which is characterized in that first screw thread is set to the close of second wall
The inside at end, second screw thread are set to the outside of the proximal end of the second sidewall.
7. locking device according to claim 5 or 6, which is characterized in that set on the inside of the distal end of second wall
There is the first protruding portion, is equipped with the second protruding portion in the outside of the proximal end of the second sidewall, and when second protruding portion protrudes into
In the third cavity and after slipping over first protruding portion, first protruding portion is abutted with second protruding portion.
8. locking device according to claim 1, which is characterized in that first screw thread is set to the close of the first side wall
The outside at end, second screw thread is set to the inside of the proximal end of the second sidewall, and the second sidewall is in the internal diameter of proximal end
Outer diameter greater than the first side wall in proximal end.
9. locking device according to claim 2, which is characterized in that the step surface of the first step is close to described the
One end of two cavitys is that the inclined angle in proximal end of origin towards second cavity is 20 degree of -45 degree.
10. locking device according to claim 3, which is characterized in that the step surface of the first step is close to described
One end of second cavity be the inclined angle in proximal end of origin towards second cavity be 20 degree -45 degree, the retaining ring with
One end that the step surface of the first step abuts is directed away from the step surface by origin of the inner ring surface of the retaining ring
The inclined angle in one end is 20 degree of -45 degree.
11. a kind of plugging system, including conveyer and foley's tube, the conveyer include handle, the foley's tube is led
Pipe is across the handle, and one end of the conduit is connect with the sacculus of the foley's tube, which is characterized in that the closure system
System further includes such as the described in any item locking devices of claim 1-10；The locking cap of the locking device, the locking
Ring and the locking pedestal are sheathed on one end far from the sacculus of the conduit, and the locking pedestal and the hand respectively
The proximal end of handle connects.
12. plugging system according to claim 11, which is characterized in that the locking pedestal and handle one at
Type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711121200.2A CN109793975A (en) | 2017-11-14 | 2017-11-14 | Locking device and plugging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711121200.2A CN109793975A (en) | 2017-11-14 | 2017-11-14 | Locking device and plugging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109793975A true CN109793975A (en) | 2019-05-24 |
Family
ID=66554662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711121200.2A Pending CN109793975A (en) | 2017-11-14 | 2017-11-14 | Locking device and plugging system |
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| Country | Link |
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| CN (1) | CN109793975A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113713237A (en) * | 2021-11-03 | 2021-11-30 | 丰凯医疗器械（上海）有限公司 | Fixed locking structure, medical catheter and blood pump |
| CN115317773A (en) * | 2022-10-11 | 2022-11-11 | 纳索菲德(上海)制药技术有限公司 | Device for instilling medicine into nasal cavity |
| WO2024077996A1 (en) * | 2022-10-11 | 2024-04-18 | Nasal-Phyto (Sz) Pharmaceutical Technology Co., Ltd. | Nasal drug delivery device with adjustable position |
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2017
- 2017-11-14 CN CN201711121200.2A patent/CN109793975A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113713237A (en) * | 2021-11-03 | 2021-11-30 | 丰凯医疗器械（上海）有限公司 | Fixed locking structure, medical catheter and blood pump |
| CN113713237B (en) * | 2021-11-03 | 2022-02-11 | 丰凯医疗器械（上海）有限公司 | Fixed locking structure, medical catheter and blood pump |
| WO2023078359A1 (en) * | 2021-11-03 | 2023-05-11 | 丰凯利医疗器械(上海)有限公司 | Fixing and locking structure, medical catheter, and blood pump |
| CN115317773A (en) * | 2022-10-11 | 2022-11-11 | 纳索菲德(上海)制药技术有限公司 | Device for instilling medicine into nasal cavity |
| WO2024077996A1 (en) * | 2022-10-11 | 2024-04-18 | Nasal-Phyto (Sz) Pharmaceutical Technology Co., Ltd. | Nasal drug delivery device with adjustable position |
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