CN216319399U - Vascular catheter sheath for interventional therapy - Google Patents
Vascular catheter sheath for interventional therapy Download PDFInfo
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- CN216319399U CN216319399U CN202122255768.1U CN202122255768U CN216319399U CN 216319399 U CN216319399 U CN 216319399U CN 202122255768 U CN202122255768 U CN 202122255768U CN 216319399 U CN216319399 U CN 216319399U
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- shell
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- interventional therapy
- pipe
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- 238000002560 therapeutic procedure Methods 0.000 title claims abstract description 19
- 230000002792 vascular Effects 0.000 title claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000000741 silica gel Substances 0.000 claims abstract description 36
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 36
- 230000002439 hemostatic effect Effects 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 26
- 229910052710 silicon Inorganic materials 0.000 claims description 26
- 239000010703 silicon Substances 0.000 claims description 26
- 239000000084 colloidal system Substances 0.000 claims description 14
- 230000023597 hemostasis Effects 0.000 claims description 7
- 238000009987 spinning Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 210000004204 blood vessel Anatomy 0.000 abstract description 12
- 239000008280 blood Substances 0.000 abstract description 7
- 210000004369 blood Anatomy 0.000 abstract description 7
- 229920001296 polysiloxane Polymers 0.000 description 14
- 230000000916 dilatatory effect Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000011281 clinical therapy Methods 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000013152 interventional procedure Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a vascular catheter sheath for interventional therapy, which comprises a hollow shell, a guide tube and a catheter sheath, wherein the guide tube is fixed at the far end of the shell and coaxially penetrates and extends relative to the shell; the shell is connected with an exhaust pipe; a rotary fixing mechanism, a silica gel valve and a hemostatic valve are coaxially arranged in the shell from the input port to the output port of the shell in sequence, and the three are provided with internal channels communicated with the guide pipe; the rotary fixing mechanism is provided with an inner diameter variable structure, and the structure adjusts the inner diameter of the expansion pipe according to the outer diameter of the expansion pipe of the expander penetrating through the inner channel of the rotary fixing mechanism and fixes the expansion pipe; the hemostatic valve is provided with an end cover which can be opened and closed towards the inside of the hemostatic valve. The advantages of the utility model are embodied in that: the sealing performance is high, the expansion pipe penetrates through the silica gel valve, the inner diameter of the silica gel valve is expanded, and the expansion pipe and the silica gel valve are tightly connected to form sealing; meanwhile, the end cover is arranged at the near end of the hemostatic valve, so that blood in the blood vessel is effectively prevented from leaking and flowing back through the sheath channel; the sealing plug further enhances the sealing performance of the guide pipe and the shell.
Description
Technical Field
The utility model belongs to the technical field of medical instruments, and particularly relates to a vascular catheter sheath for interventional therapy.
Background
Interventional therapies are increasingly being used in clinical therapy because of their advantages of less bleeding, less trauma, fewer complications, safety, reliability, rapid recovery after surgery, etc. As an auxiliary guiding instrument for minimally invasive peripheral and intracardiac interventional procedures, a stent assembly consisting of a catheter sheath and a dilator plays an important role in interventional therapy. When clinical intervention treatment is carried out, the expansion assembly is inserted into a vascular system through percutaneous puncture and is mainly used for expanding percutaneous incision and establishing a connecting channel between a human blood vessel and the outside so as to assist a delivery system to deliver diagnosis and/or treatment equipment (such as an ablation expander) to a target lesion position.
The process of placing the catheter sheath is as follows: after the vascular puncture operation, a guide wire is placed into a blood vessel, then the sheath tube and the dilator are combined, the percutaneous incision is enlarged along the guide wire, the sheath tube and the dilator are pushed to reach a specified position in the blood vessel, and then the dilator is pulled out to leave the sheath tube in the blood vessel. In actual clinical use, due to the complicated bending of the blood vessel, after the sheath is placed, the physician usually needs to adjust the orientation of the distal opening of the sheath by rotating the sheath several times so that the diagnostic and/or therapeutic device can be delivered to the target site by the sheath in the subsequent operation. The catheter sheath must also be leak tight during operation by the physician to prevent leakage and backflow of blood through the sheath channel.
Chinese patent CN201821003328.9 discloses a catheter sheath and a stent assembly, which solves the above-mentioned sealing problem, but when the stent is inserted into the blood vessel, the stent is not fixed in position, so that the distal end of the stent (the end inserted into the blood vessel) is easily swung when adjusting the position of the stent, which is inconvenient for the physician to operate and easily causes position deviation, resulting in prolonged operation time. In order to solve the above problems, designing a vascular catheter sheath for interventional therapy is an important technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving the above problems of the prior art and to providing a vascular sheath for interventional therapy.
The purpose of the utility model is realized by the following technical scheme:
a vascular catheter sheath for interventional therapy comprises a hollow shell and a guide tube which is fixed at the distal end of the shell and coaxially extends through the shell; the shell is connected with an exhaust pipe; a rotary fixing mechanism, a silica gel valve and a hemostatic valve are coaxially arranged in the shell from the input port to the output port of the shell in sequence, and the three are provided with internal channels communicated with the guide pipe; the rotary fixing mechanism is provided with a variable inner diameter structure, and the structure adjusts the inner diameter of the expansion pipe according to the outer diameter of the expansion pipe of the expander penetrating through the inner channel of the rotary fixing mechanism and fixes the expansion pipe; the hemostatic valve is provided with an end cover which can be opened and closed towards the inside of the hemostatic valve.
Preferably, the rotary fixing mechanism comprises an inlet section, a silica gel body and a spinning assembly which are coaxially arranged; the inlet section comprises an inlet pipeline communicated with the input port and a hollow limiting plate; the limiting plate is abutted against the silicon colloid and is U-shaped, and the width of the limiting plate is equivalent to the outer diameter of the silicon colloid and is used for clamping the silicon colloid.
Preferably, the spinning assembly includes a moving body and a rotating body; the moving body at least comprises a cylindrical pipeline, at least one clamping block is arranged on the periphery of the cylindrical pipeline, the clamping block is clamped in a spiral clamping groove in the inner wall of the rotating body, and the moving body is controlled to move towards the silicon colloid so as to compress the silicon colloid to deform the silicon colloid.
Preferably, a rotation handle is disposed on an outer circumferential surface of the rotation body, a circumferential through hole is formed in the housing, and the rotation handle penetrates through the through hole and protrudes to an outer surface of the housing.
Preferably, the moving body further comprises a squeezing part vertically arranged at the top end of the cylindrical pipe and abutted against the end part of the silica gel body, and the squeezing part and the cylindrical pipe are integrally arranged.
Preferably, the end cover is the round platform form, has a silica gel connecting piece to follow the terminal surface of hemostasis valve extends to the periphery of end cover, just the top of silica gel connecting piece with the outer terminal surface coplane of the big circumference of end cover.
Preferably, the casing is formed by two half shell concatenations fixedly, and its inner space is provided with and holds rotatory fixed establishment's first cavity places and prescribes a limit to the second cavity of silica gel valve position holds the third cavity of hemostasis valve and by the fourth cavity that the stand pipe runs through.
Preferably, the sum of the length of the main body of the hemostatic valve and the length of the silica gel connecting piece is equal to the length of the third cavity, and the outer end face of the large circumference of the end cover is attached to the inner wall of the third cavity.
Preferably, a hollow sealing plug is arranged in the fourth cavity, the input end of the guide tube is inserted into the sealing plug, the sealing plug is convex, and the raised head of the sealing plug is inserted into the hemostatic valve.
The technical scheme of the utility model has the advantages that:
the sealing performance is high, the expansion pipe penetrates through the silica gel valve, the inner diameter of the silica gel valve is expanded, and the expansion pipe and the silica gel valve are tightly connected to form sealing; meanwhile, the end cover is arranged at the near end of the hemostatic valve, so that blood in the blood vessel is effectively prevented from leaking and flowing back through the sheath channel; the sealing plug further enhances the sealing performance between the guide pipe and the shell;
the operation is controllable, the moving body and the deformation of the silica gel body are controlled through the rotating body, and the inner diameter of the silica gel body is further controlled, so that the expansion pipes with different diameters can penetrate through the silica gel body, the practical range is expanded, the swing amplitude of the far end of the expansion pipe is controlled, the operation difficulty and the pain of a patient are reduced, the time consumption is shortened, and the working efficiency is improved;
the catheter sheath is convenient to install, cavities with different sizes are formed in each part of the shell, each cavity corresponds to a unique component, the difficulty of assembling the catheter sheath is reduced, and meanwhile, the maintenance and the replacement are convenient; meanwhile, the components in different cavities are subjected to complementary interference, and the service life is prolonged.
Drawings
FIG. 1: a partial hidden view of a preferred embodiment of the present invention;
FIG. 2: an exploded view of a preferred embodiment of the present invention;
FIG. 3: the shell structure of the preferred embodiment of the utility model;
FIG. 4: the structure of the inlet section of the preferred embodiment of the utility model;
FIG. 5: the structure of the moving body of the preferred embodiment of the present invention;
FIG. 6: the structure of the rotating body of the preferred embodiment of the present invention;
FIG. 7: the structure of the hemostatic valve of the preferred embodiment of the present invention;
FIG. 8: the structure of the sealing plug of the preferred embodiment of the utility model.
Detailed Description
Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. The embodiments are merely exemplary for applying the technical solutions of the present invention, and any technical solution formed by replacing or converting the equivalent thereof falls within the scope of the present invention claimed.
In the description of the schemes, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.
As shown in fig. 2, the present invention discloses a vascular catheter sheath for interventional therapy, which comprises a hollow shell 1 and a guide tube 2 fixed at the distal end of the shell 1 and coaxially extending through the shell, wherein the guide tube 2 is preferably made of soft material; the casing 1 is connected with an exhaust pipe 7, and the exhaust pipe 7 can exhaust the gas in the casing 1 and the guide pipe 2, so that the resistance of the operation is effectively reduced, and the working efficiency is improved.
As shown in fig. 3, the housing 1 is formed by splicing and fixing two half shells, and the inner space of the housing is provided with a first cavity 11, a second cavity 12, a third cavity 13 and a fourth cavity 14 penetrated by the guide tube 2 as shown in fig. 2. As shown in fig. 1, a rotary fixing mechanism 3, a silica gel valve 4 and a hemostatic valve 5 are coaxially arranged in the housing 1 from an input port 101 to an output port 102 thereof in sequence; wherein the rotary fixing mechanism 3 is arranged in the first cavity 11, the silica gel valve 4 is limited in the second cavity 12, and the hemostatic valve 5 is accommodated in the third cavity 13. The rotating body 3, the silica gel valve 4 and the hemostatic valve 5 are all provided with internal channels communicated with the guide tube 2 so that the dilating tube of the dilator can enter a blood vessel, and the silica gel valve 4 has certain elasticity, so that the inner diameter of the silica gel valve can be deformed according to the outer diameter of the dilator, and the sealing property is enhanced.
As shown in FIG. 2, the rotary fixing mechanism 3 has a variable inner diameter structure which adjusts the inner diameter of the expanding tube according to the outer diameter of the expanding tube passing through the inner passage and fixes the expanding tube. Specifically, the rotary fixing mechanism 3 includes an inlet section 31, a silicone body 32, and a spinning assembly 33, which are coaxially disposed. As shown in fig. 4, the inlet section 31 includes an inlet pipe 311 communicating with the input port 101, and a hollow restriction plate 312; the limiting plate 312 abuts against the silicon colloid 32, and the limiting plate 312 is U-shaped, and has a width equivalent to the outer diameter of the silicon colloid 32 for clamping the silicon colloid 32. The silicon body 32 can deform according to the stress condition, but because the silicon body 32 is limited in the limiting plate 312 and the shell 1, the inner diameter of the silicon body 32 changes during deformation, and then the expansion tube penetrating through the silicon body is pressed or loosened, so that the whipping or shaking generated by the far end (the end inserted into the blood vessel) of the expansion tube is reduced as much as possible, the operation difficulty is reduced, the pain of a patient is reduced, and the operation time is shortened. Of course, the variable structure of the inner diameter may also be a structure disclosed in the prior art, such as an inflation tube or a liquid expansion tube, and will not be described herein.
As shown in fig. 5, the spinning assembly 33 includes a moving body 331 and a rotating body 332. The moving body 331 at least includes a cylindrical pipe, at least one fixture block 3311 is disposed on the outer circumference of the cylindrical pipe, preferably, three fixture blocks 3311 are disposed in the present invention, the number of the fixture blocks 3311 may be adjusted according to the use situation and the production requirement, and the number is not limited herein.
The moving body 331 further includes a squeezing portion 3312 vertically disposed at the top end of the cylindrical tube and abutting against the end of the silicone body 32, and the squeezing portion 3312 and the cylindrical tube are integrally disposed. The fixture block 3311 is clamped in a spiral-shaped clamping groove 3321 on the inner wall of the rotating body 332, specifically, when the fixture block 3311 slides in the clamping groove 3321 and moves toward the silicon body 32 on an axis (the axis along which the setting direction of the conduit 2 is located), that is, when the extrusion part 3312 moves toward the silicon body 32, the outer wall thereof extrudes the silicon body 32 and compresses the silicon body 32 to deform the silicon body 32, so that the inner diameter of the silicon body 32 is reduced until the position of the expansion tube is fixed; on the contrary, when the clamping block 3311 slides in the clamping groove 3321 and the position of the silicone valve 4 is moved in the axial direction, the pressing part 3312 is driven to move synchronously, so as to reduce the acting force on the silicone body 32 until the release, the silicone body 32 automatically resets, the inner diameter of the silicone body is increased, and the acting force on the expansion tube is reduced.
Referring to fig. 1 and 6, in order to facilitate control of the deformation amount of the silicone body 32, that is, control of the acting force of the silicone body 32 on the expansion tube, a rotating handle 3322 is disposed on the outer circumferential surface of the rotating body 332, a circumferential through hole 10 is formed in the housing 1, and the rotating handle 3322 penetrates through the through hole 10 and protrudes out of the outer surface of the housing 1. Through control the rotation amplitude control of rotatory handle 3322 the displacement volume of removal body 331, and then control the deformation volume of colloidal silica 32 reduces the swing range of expansion pipe distal end reduces patient's misery, makes things convenient for doctor's operation.
The hemostatic valve 5 is provided with an end cap 51 that can open and close towards the inside of the hemostatic valve 5, and the end cap 51 is disposed at the proximal end of the hemostatic valve 5 (the end close to the input port 101 of the housing 1). The end cover 51 is round platform form, has a silica gel connecting piece 52 follow the terminal surface of hemostasis valve 5 extends to the periphery of end cover 51, just the top of silica gel connecting piece 52 with the outer terminal surface coplane of the big circumference of end cover 51. The sum of the length of the main body of the hemostatic valve 5 and the length of the silica gel connecting piece 52 is equal to the length of the third cavity 13, the outer end face of the large circumference of the end cover 51 is attached to the inner wall of the third cavity 13, and the end cover 51 is effectively prevented from being deformed in a transition manner by the inner wall of the third cavity 13, so that the leakproof effect cannot be achieved. Specifically, when the dilating tube passes through the rotating fixing mechanism 3 and the silicone valve 4 to reach the hemostatic valve 5, the distal end of the dilating tube applies a force to the end cap 51 and presses the end cap 51 into the inner wall of the hemostatic valve 5, and finally the dilating tube penetrates through the hemostatic valve 5; on the contrary, in the process of withdrawing the dilating tube, the end cap 51 is gradually reset, and the end cap 51 automatically resets under the action of the performance of the end cap 51 immediately after the dilating tube is withdrawn, so that the blood is effectively prevented from overflowing, and the blood is prevented from leaking and flowing back through the sheath channel. In a similar way, after the expansion pipe is withdrawn from the silica gel valve 4, the inner diameter of the silica gel valve 4 is elastically reset, so that the possibility of blood overflow is further reduced, pollution is reduced, and the sanitary safety is improved.
Referring to fig. 2 and 8, a hollow sealing plug 6 is arranged in the fourth cavity 14, the input end of the guide tube 2 is inserted into the sealing plug 6 in a sealing manner, the sealing plug 6 is convex, and the convex head of the sealing plug is inserted into the hemostatic valve 5 and is connected with the output end of the hemostatic valve 5 in a sealing manner, so that the overall sealing performance is enhanced.
The working process of the utility model is briefly described as follows:
s1: the expanding tube of the expander is inserted from the input port 101 of the shell 1 and sequentially penetrates through the inlet section 31, the silicon body 32 and the internal channel of the spinning assembly 33;
s2: the rotating handle 3322 is rotated to drive the moving body 331 to move towards the silicone body 32 and apply acting force to the silicone body 32, so that the silicone body is deformed, and the inner diameter of the silicone body is reduced until the inner diameter of the silicone body 32 is attached to the expander;
s3: further pushing the dilator to enable the distal end of the dilating tube to abut until the dilator penetrates through the silica gel valve 4;
s4: further pushing the dilator so that the distal end of the dilation tube exerts a force on the end cap 51 of the hemostasis valve 5 until the end cap 51 deforms into the inner wall of the hemostasis valve 5;
s5: further pushing the dilator to enable the distal end of the dilating tube to sequentially penetrate through the hemostatic valve 5 and the sealing plug 6, enter the guide tube 2 and finally enter the blood vessel;
s6: further turning the turning knob 3322 based on S2 until the stent is immovable and its position is fixed;
s7: the rotating handle 3322 is rotated reversely to withdraw the expansion pipe, the expansion pipe sequentially passes through the sealing plug 6 to reach the end cover 51 of the hemostatic valve 5, and the end cover 51 automatically resets under the elastic action;
s8: the expansion pipe is further withdrawn, the expansion pipe passes through the silica gel valve 4, the inner diameter of the silica gel valve 4 automatically resets, and the blood is prevented from overflowing;
s9: the stent is further withdrawn until the distal end of the stent is completely withdrawn.
The utility model has various embodiments, and all technical solutions formed by adopting equivalent transformation or equivalent transformation are within the protection scope of the utility model.
Claims (9)
1. A vascular catheter sheath for interventional therapy comprises a hollow shell (1) and a guide tube (2) which is fixed at the distal end of the shell (1) and coaxially extends through relative to the shell; an exhaust pipe (7) is connected to the shell (1); the method is characterized in that: a rotary fixing mechanism (3), a silica gel valve (4) and a hemostatic valve (5) are coaxially arranged in the shell (1) from an input port (101) to an output port (102) of the shell in sequence, and the three are provided with internal channels communicated with the guide pipe (2); the rotary fixing mechanism (3) is provided with an inner diameter variable structure, and the inner diameter variable structure adjusts the size of the inner diameter of the expansion pipe according to the outer diameter of the expansion pipe of the expander penetrating through the inner channel of the expansion pipe and fixes the expansion pipe; the hemostatic valve (5) is provided with an end cover (51) which can be opened and closed towards the inside of the hemostatic valve (5).
2. The vascular sheath for interventional therapy according to claim 1, characterized in that: the rotary fixing mechanism (3) comprises an inlet section (31), a silica gel body (32) and a spinning assembly (33) which are coaxially arranged; the inlet section (31) comprises an inlet pipe (311) communicated with the input port (101) and a hollow limiting plate (312); the limiting plate (312) is abutted to the silicon colloid (32), the limiting plate (312) is U-shaped, and the width of the limiting plate is equivalent to the outer diameter of the silicon colloid (32) and is used for clamping the silicon colloid (32).
3. The vascular sheath for interventional therapy according to claim 2, characterized in that: the spinning assembly (33) includes a moving body (331) and a rotating body (332); the moving body (331) at least comprises a cylindrical pipeline, at least one clamping block (3311) is arranged on the periphery of the cylindrical pipeline, the clamping block (3311) is clamped in a spiral clamping groove (3321) on the inner wall of the rotating body (332), and the moving body (331) is controlled to move towards the silicon colloid (32) so as to compress the silicon colloid (32) to deform.
4. The vascular sheath for interventional therapy according to claim 3, characterized in that: the outer circumferential surface of the rotating body (332) is provided with a rotating handle (3322), a circumferential through hole (10) is formed in the housing (1), and the rotating handle (3322) penetrates through the through hole (10) and protrudes to the outer surface of the housing (1).
5. The vascular sheath for interventional therapy according to claim 4, characterized in that: the moving body (331) further comprises a squeezing part (3312) which is vertically arranged at the top end of the cylindrical pipeline and is abutted against the end part of the silicon body (32), and the squeezing part (3312) and the cylindrical pipeline are integrally arranged.
6. The vascular sheath for interventional therapy according to claim 1, characterized in that: end cover (51) are the round platform form, have a silica gel connecting piece (52) to follow the terminal surface of hemostasis valve (5) extends to the periphery of end cover (51), just the top of silica gel connecting piece (52) with the outer terminal surface coplane of the big circumference of end cover (51).
7. The vascular sheath for interventional therapy according to claim 6, characterized in that: casing (1) is formed by two half shell concatenations are fixed, and its inner space is provided with and holds first cavity (11) of rotatory fixed establishment (3) place and inject second cavity (12) of silica gel valve (4) position hold third cavity (13) of hemostasis valve (5) and by fourth cavity (14) that stand pipe (2) run through.
8. The vascular sheath for interventional therapy according to claim 7, characterized in that: the sum of the length of the main body of the hemostatic valve (5) and the length of the silica gel connecting piece (52) is equal to the length of the third cavity (13), and the outer end face of the large circumference of the end cover (51) is attached to the inner wall of the third cavity (13).
9. The vascular sheath for interventional therapy according to claim 8, characterized in that: a hollow sealing plug (6) is arranged in the fourth cavity (14), the input end of the guide tube (2) is inserted into the sealing plug (6), the sealing plug (6) is convex, and the raised head of the sealing plug is inserted into the hemostatic valve (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122255768.1U CN216319399U (en) | 2021-09-17 | 2021-09-17 | Vascular catheter sheath for interventional therapy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122255768.1U CN216319399U (en) | 2021-09-17 | 2021-09-17 | Vascular catheter sheath for interventional therapy |
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| CN216319399U true CN216319399U (en) | 2022-04-19 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115581846A (en) * | 2022-10-09 | 2023-01-10 | 河北康誉医疗器械有限公司 | An anti-falling guide catheter device |
| CN115591082A (en) * | 2022-09-20 | 2023-01-13 | 柏为（武汉）医疗科技股份有限公司（Cn） | An introducer sheath assembly |
| CN116099103A (en) * | 2023-02-03 | 2023-05-12 | 上海翰凌医疗器械有限公司 | Spiral buckle formula hemostasis valve and have its catheter sheath |
| CN115153746B (en) * | 2022-06-21 | 2023-06-02 | 上海玮琅医疗科技有限公司 | Catheter adapter |
-
2021
- 2021-09-17 CN CN202122255768.1U patent/CN216319399U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115153746B (en) * | 2022-06-21 | 2023-06-02 | 上海玮琅医疗科技有限公司 | Catheter adapter |
| CN115591082A (en) * | 2022-09-20 | 2023-01-13 | 柏为（武汉）医疗科技股份有限公司（Cn） | An introducer sheath assembly |
| CN115581846A (en) * | 2022-10-09 | 2023-01-10 | 河北康誉医疗器械有限公司 | An anti-falling guide catheter device |
| CN116099103A (en) * | 2023-02-03 | 2023-05-12 | 上海翰凌医疗器械有限公司 | Spiral buckle formula hemostasis valve and have its catheter sheath |
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