CN110037759A - A kind of catheter sheath of adjustable opening - Google Patents
A kind of catheter sheath of adjustable opening Download PDFInfo
- Publication number
- CN110037759A CN110037759A CN201910458317.2A CN201910458317A CN110037759A CN 110037759 A CN110037759 A CN 110037759A CN 201910458317 A CN201910458317 A CN 201910458317A CN 110037759 A CN110037759 A CN 110037759A
- Authority
- CN
- China
- Prior art keywords
- sheath
- tube socket
- valve
- haemostatic valve
- sheath tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229940030225 antihemorrhagics Drugs 0.000 claims abstract description 48
- 230000000025 haemostatic effect Effects 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 5
- 230000023597 hemostasis Effects 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 210000004204 blood vessel Anatomy 0.000 abstract description 6
- 238000013152 interventional procedure Methods 0.000 abstract description 2
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
- A61B17/3423—Access ports, e.g. toroid shape introducers for instruments or hands
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3462—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3498—Valves therefor, e.g. flapper valves, slide valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00743—Type of operation; Specification of treatment sites
- A61B2017/00778—Operations on blood vessels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3462—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
- A61B2017/3464—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals with means acting on inner surface of valve or seal for expanding or protecting, e.g. inner pivoting fingers
Abstract
The invention discloses a kind of catheter sheath of adjustable opening, including sheath tube socket, sheath tube socket lower end is connected and fixed sheath, and sheath tube socket upper end is equipped with haemostatic valve, haemostatic valve fixator, spring and nut cap, and sheath tube socket side is sequentially connected extension tube and threeway connection valve.Entire catheter sheath is axially arranged with the channel that other intervention apparatus can be made to enter.It is mainly used for expanding the notch of percutaneous puncture in interventional procedure, establish the channel that other intervention apparatus enter blood vessel, the invention catheter sheath can open built-in closure haemostatic valve by itself, and it is adjustable openings of sizes, other intervention apparatus are entered by the haemostatic valve opened, it avoids other intervention apparatus head ends from damaging, shortens the operating time, reduces operational risk.
Description
Technical field
The present invention relates to a kind of blood vessel intervention operation medical equipment more particularly to a kind of catheter sheaths of adjustable opening, belong to
In vascular interventional treatment field.
Background technique
During blood vessel intervention operation, catheter sheath is established for expanding the notch of percutaneous puncture in interventional procedure
Other intervention apparatus enter the channel of blood vessel.
As shown in Figure 1, in the prior art, medically common catheter sheath (patent publication No.: CN204840602U,
CN204601342U etc.), other intervention apparatus need to be inserted into and open by itself the haemostatic valve of catheter sheath closure.
Summary of the invention
The object of the present invention is to provide a kind of catheter sheaths of adjustable opening, and built-in closure hemostasis can be opened by itself
Valve, and it is adjustable openings of sizes, other intervention apparatus are entered by the haemostatic valve opened, and other intervention apparatus head ends is avoided to damage
Wound shortens the operating time, reduces operational risk.
The purpose of the present invention is what is be achieved through the following technical solutions:
The catheter sheath of adjustable opening of the invention, including sheath tube socket, sheath tube socket lower end are connected and fixed sheath, the sheath
Tube socket upper end is sequentially connected extension tube and three equipped with haemostatic valve and haemostatic valve fixator and spring and nut cap, sheath tube socket side
Logical connection valve, entire catheter sheath are axially arranged with the channel that other intervention apparatus can be made to enter.
The catheter sheath of adjustable opening of the invention it can be seen from the technical solution that above content provides is performed the operation in intervention
In the process, meeting outside application range of products, built-in closure haemostatic valve can be being opened by itself, and be adjustable openings of sizes,
Other intervention apparatus are entered by the haemostatic valve opened, and other intervention apparatus head ends is avoided to damage, and are shortened the operating time, are reduced behaviour
Make risk.
Detailed description of the invention
Fig. 1 is typical catheter sheath structural schematic diagram in the prior art.
Fig. 2 is the catheter sheath structural schematic diagram of adjustable opening provided in an embodiment of the present invention.
Fig. 3 is the catheter sheath partial enlargement diagram of adjustable opening provided in an embodiment of the present invention.
In figure:
1-1: sheath, 1-2: sheath tube socket, 1-3: haemostatic valve, 1-4: nut cap, 1-5: extension tube, 1-6: threeway connection valve, 1-
7: protective case.
2-1: sheath, 2-2: sheath tube socket, 2-3: haemostatic valve, 2-4: nut cap, 2-5: haemostatic valve fixator, 2-6: spring, 2-
7: extension tube, 2-8: threeway connection valve, 2-9: protective case, 2-2-1: buckle (sheath tube socket), 2-4-1: hollow opening valve cone (nut cap),
2-4-2: buckle (nut cap).
Specific embodiment
The embodiment of the present invention will be described in further detail below.What is be not described in detail in the embodiment of the present invention is interior
Appearance belongs to the prior art well known to professional and technical personnel in the field.
The catheter sheath of adjustable opening of the invention, preferable specific embodiment is:
Including sheath tube socket, sheath tube socket lower end is connected and fixed sheath, and sheath tube socket upper end is equipped with haemostatic valve and hemostasis
Valve fixator and spring and nut cap, sheath tube socket side are sequentially connected extension tube and threeway connection valve, and entire catheter sheath is axial
Equipped with the channel that other intervention apparatus can be made to enter.
The haemostatic valve is assemblied between sheath tube socket and haemostatic valve fixator, and haemostatic valve fixator passes through welding or glue connection
It is connected to sheath tube socket, the haemostatic valve material is elastic material, and stopping for the elastic material is oppressed in the haemostatic valve fixator interference
Blood valve.
The haemostatic valve material is silica gel or rubber or TPU.
The sheath tube socket is coupled with nut cap by buckling interlocking, can be moved in the axial direction between the nut cap and sheath tube socket
It is dynamic.
The nut cap lower end has hollow opening valve cone structure, and the valve opening wimble structure of nut cap lower end opens the haemostatic valve, and
Modulating hemostasis valve openings of sizes.
The spring is set between the sheath tube socket and nut cap, and after releasing stress, nut cap resets under the action of the spring.
The catheter sheath of adjustable opening of the invention can open built-in closure haemostatic valve by itself, and be adjustable opening
Size, other intervention apparatus are entered by the haemostatic valve opened, and other intervention apparatus head ends is avoided to damage, the shortening operating time,
Reduce operational risk.
Specific embodiment:
As shown in Figures 2 and 3, sheath 2-1 is assemblied in sheath tube socket 2-2, forms the channel that other intervention apparatus enter blood vessel；
Extension tube 2-7 passes through glue connecting utricle tube socket 2-2 and threeway connection valve 2-8 respectively；
Protective case 2-9, in sheath tube socket 2-2, prevents sheath 2-1 bending and occlusion in use by snap-fitted；
Haemostatic valve 2-3 is assemblied between sheath tube socket 2-2 and haemostatic valve fixator 2-5, and haemostatic valve fixator 2-5 passes through welding
Or glue is connected in sheath tube socket 2-2, and interference hemostasis by compression valve 2-3, haemostatic valve 2-3 material is silica gel or the materials such as rubber or TPU
Material makes haemostatic valve 2-3 keep sealing；
Sheath tube socket 2-2 is coupled with nut cap 2-4 by buckle (2-2-1 and 2-4-2) interlocking, and enables nut cap 2-4 in axis
It is moved to opposite sheath tube socket 2-2；Design has hollow opening valve cone 2-4-1 structure on nut cap 2-4, presses nut cap 2-4 with respect to sheath
After seat 2-2 movement, valve opening cone 2-4-1 can open haemostatic valve 2-3, keep other intervention apparatus insertion hollow opening valve cone 2-4-1 logical
It crosses haemostatic valve 2-3 and enters blood vessel, and the size of the distance controlling haemostatic valve opening by pressing nut cap 2-4；
Spring 2-6 is assembled between sheath tube socket 2-2 and nut cap 2-4, after being released stress after pressing nut cap 2-4, nut cap 2-4 energy
Enough automatic reboundings, haemostatic valve 2-3 are remained off, and prevent blood backflow.
The realization of function:
As shown in Figures 2 and 3, before other intervention apparatus enter catheter sheath, nut cap 2-4, the hollow opening on nut cap 2-4 are pressed
Valve cone 2-4-1 can automatically open haemostatic valve 2-3, and pass through pressing distance controlling haemostatic valve 2-3 openings of sizes；Other intervention apparatus
By hollow opening valve cone 2-4-1 by releasing stress after haemostatic valve 2-3, nut cap 2-4 can automatic rebounding, haemostatic valve 2-3 is automatic
It closes, is bonded other intervention apparatus surfaces, form sealing, prevent blood backflow.
Beneficial effects of the present invention:
The present invention provides a kind of catheter sheaths of adjustable opening, and built-in closure haemostatic valve, and energy can be opened by itself
Openings of sizes is adjusted, other intervention apparatus are entered by the haemostatic valve opened, and are avoided other intervention apparatus head ends from damaging, are shortened behaviour
Make the time, reduce operational risk.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Within the technical scope of the present disclosure, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (6)
1. a kind of catheter sheath of adjustable opening, which is characterized in that including sheath tube socket, sheath tube socket lower end is connected and fixed sheath,
Sheath tube socket upper end is sequentially connected extension equipped with haemostatic valve and haemostatic valve fixator and spring and nut cap, sheath tube socket side
Pipe and threeway connection valve, entire catheter sheath are axially arranged with the channel that other intervention apparatus can be made to enter.
2. the catheter sheath of adjustable opening according to claim 1, which is characterized in that the haemostatic valve be assemblied in sheath tube socket with
Between haemostatic valve fixator, haemostatic valve fixator is connected in sheath tube socket by welding or glue, and the haemostatic valve material is elasticity
The haemostatic valve of the elastic material is oppressed in material, the haemostatic valve fixator interference.
3. the catheter sheath of adjustable opening according to claim 2, which is characterized in that the haemostatic valve material is silica gel or rubber
Glue or TPU.
4. the catheter sheath of adjustable opening according to claim 1,2 or 3, which is characterized in that the sheath tube socket and nut cap are logical
Buckle interlocking connection is crossed, can be moved in the axial direction between the nut cap and sheath tube socket.
5. the catheter sheath of adjustable opening according to claim 4, which is characterized in that the nut cap lower end has hollow valve opening
Wimble structure, the valve opening wimble structure of nut cap lower end open the haemostatic valve, and modulating hemostasis valve openings of sizes.
6. the catheter sheath of adjustable opening according to claim 5, which is characterized in that the spring be set to the sheath tube socket with
Between nut cap, after releasing stress, nut cap resets under the action of the spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910458317.2A CN110037759B (en) | 2019-05-29 | Adjustable open-ended catheter sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910458317.2A CN110037759B (en) | 2019-05-29 | Adjustable open-ended catheter sheath |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110037759A true CN110037759A (en) | 2019-07-23 |
| CN110037759B CN110037759B (en) | 2024-05-07 |
Family
ID=
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112206399A (en) * | 2020-09-18 | 2021-01-12 | 合肥晟宏医疗器械有限公司 | Vascular catheter sheath assembly |
| WO2021136460A1 (en) * | 2019-12-31 | 2021-07-08 | 杭州启明医疗器械股份有限公司 | Hemostasis valve, catheter sheath, and method for sealing interventional instrument |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0631793A1 (en) * | 1993-06-30 | 1995-01-04 | Cook Incorporated | Splittable hemostatic valve and method of use with a splittable introducer sheath |
| CN104800954A (en) * | 2015-05-20 | 2015-07-29 | 湖南埃普特医疗器械有限公司 | Valve-adjustable catheter sheath |
| CN206080629U (en) * | 2016-06-08 | 2017-04-12 | 深圳市科奕顿生物医疗科技有限公司 | Intervene medical instrument conveying system |
| CN210277235U (en) * | 2019-05-29 | 2020-04-10 | 迪泰医学科技（苏州）有限公司 | Catheter sheath with adjustable opening |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0631793A1 (en) * | 1993-06-30 | 1995-01-04 | Cook Incorporated | Splittable hemostatic valve and method of use with a splittable introducer sheath |
| CN104800954A (en) * | 2015-05-20 | 2015-07-29 | 湖南埃普特医疗器械有限公司 | Valve-adjustable catheter sheath |
| CN206080629U (en) * | 2016-06-08 | 2017-04-12 | 深圳市科奕顿生物医疗科技有限公司 | Intervene medical instrument conveying system |
| CN210277235U (en) * | 2019-05-29 | 2020-04-10 | 迪泰医学科技（苏州）有限公司 | Catheter sheath with adjustable opening |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021136460A1 (en) * | 2019-12-31 | 2021-07-08 | 杭州启明医疗器械股份有限公司 | Hemostasis valve, catheter sheath, and method for sealing interventional instrument |
| CN114867519A (en) * | 2019-12-31 | 2022-08-05 | 杭州启明医疗器械股份有限公司 | Hemostatic valve, catheter sheath and method of sealing interventional device |
| CN112206399A (en) * | 2020-09-18 | 2021-01-12 | 合肥晟宏医疗器械有限公司 | Vascular catheter sheath assembly |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |