CN202876024U - Catheter sheath - Google Patents
Catheter sheath Download PDFInfo
- Publication number
- CN202876024U CN202876024U CN201220466280.1U CN201220466280U CN202876024U CN 202876024 U CN202876024 U CN 202876024U CN 201220466280 U CN201220466280 U CN 201220466280U CN 202876024 U CN202876024 U CN 202876024U
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- catheter sheath
- haemostatic valve
- pipe
- sheath according
- sheath
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Abstract
The utility model discloses a catheter sheath. The catheter sheath aims at improving the seepage prevention performance of a bleeding valve and providing convenience for other instruments to pass through, and improving fracture resistance of the catheter sheath body. To resolve the technical problem, the technical scheme includes that the catheter sheath comprises a sheathing pipe dominant in intervention and a branch system used for suction. The branch system is installed on the sheathing pipe. A seepage prevention device is arranged at the rear end of the sheathing pipe and comprises the bleeding valve which is embedded between a valve cap and a sheathing pipe seat. Compared with the prior art, the seepage prevention device is good in seal, the bleeding valve adopts a compressible cambered surface layer and a cross cutting opening, and a specific lubrication scheme is adopted on the bleeding valve. The sheathing pipe adopts hard and soft material double-deck extrusion structure, the fracture resistance of the sheathing pipe is improved on the basis that the hardness of the sheathing pipe is ensured.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to a kind of catheter sheath for auxiliary interventional therapy.
Background technology
As the supplemental pilot apparatus of arteriovenous intervene operation, catheter sheath plays an important role in interventional therapy.Catheter sheath mainly comprises sheath pipe and the two large divisions of system of collateral branch usually, usually comprises an important leakage-resistant device in the sheath pipe.This leakage-resistant device can effectively reduce the loss of blood in the operation process.In a lot of the application, this leakage-resistant device embodies with the form of haemostatic valve.Haemostatic valve is installed in sheath pipe rear end usually, with the channel attached position of cannula cavity.For operation process is finished smoothly, haemostatic valve must possess following two characteristics: (1) conduit or other apparatuses can pass through haemostatic valve smoothly, and the friction that this process produces should be as far as possible little; (2) in operative process, haemostatic valve should have good sealing effectiveness, effectively reduces loss of blood.In addition, should possess excellent fracture resistance as the leading sheath pipe pipe shaft of getting involved, avoid in intervention procedure, occurring the bending phenomenon as far as possible.The common technique problem that existing catheter sheath exists is: sealing effectiveness and the lubricant effect of haemostatic valve are relatively poor, and the fracture resistance of sheath pipe is undesirable, have increased to a certain extent the risk of operation, have affected the process of operation.
Summary of the invention
The purpose of this utility model provides a kind of catheter sheath, and the technical problem that solve is to improve the antiseep of haemostatic valve and make things convenient for other apparatuses to pass through, and the fold resistance that improves sheath pipe pipe shaft.
For solving the problems of the technologies described above, this utility model adopts following technical scheme: a kind of catheter sheath, the system of collateral branch that comprises the leading sheath pipe of getting involved and be used for aspirating, system of described collateral branch is installed on the sheath pipe, the rear end of described sheath pipe is provided with leakage-resistant device, and described leakage-resistant device comprises the haemostatic valve that is embedded in bonnet and sheath base centre.
Haemostatic valve described in the utility model middle part is compressible cambered surface layer, and haemostatic valve and bonnet and sheath base consist of sealing system.
Haemostatic valve described in the utility model is provided with the cross cut.
The line of cut of cross cut described in the utility model is linear or shaped form.
The degree of depth of cross cut described in the utility model is 0.2-1.8mm.
The diameter range that cross cut described in the utility model can be held insertion apparatus in the blood vessel is 0.3-3mm.
Haemostatic valve described in the utility model is polystyrene elastomer, polyethylene elastomer, polyurethane elastomer, silicone rubber or polyisoprene rubber elastomer.
The cross cut of haemostatic valve described in the utility model scribbles the liquid-state silicon oil reservoir of medical grade.
The viscosity of liquid-state silicon oil reservoir described in the utility model is 100cps-5000cps.
Sheath pipe described in the utility model adopts the soft or hard materials double-layer to extrude structure.
The skin of sheath pipe described in the utility model or internal layer are the soft material layer.
The bed thickness of the inside and outside bilayer of sheath pipe described in the utility model is than being 1:9-9:1.
Sheath pipe described in the utility model is polyurethane, polyetheramine, polyamide, Merlon, polypropylene, polyethylene, politef or fluoroplastics structure.
This utility model compared with prior art has the following advantages:
(1) the compressible haemostatic valve design of band cambered surface: the haemostatic valve with initial radian can be embedded in the middle of bonnet and the sheath base well.Initial radian place produces degree of depth material deformation under suitable pressure, produces specific protrusion spherical arc, is conducive to opposing blood reflux pressure in the process, guarantees the hemostatic function of product fine.
(2) haemostatic valve cross cutting design: adopt the cross cut, can guarantee the easy trafficability characteristic of haemostatic valve, leakiness blood not in use simultaneously, the endovascular device that this otch can hold diameter range 0.3-3mm inserts.
(3) the lubricated scheme of haemostatic valve: adopt the oil lubrication of specific medical grade liquid-state silicon, with traditional silicon oil phase ratio, this special silicone oil does not infiltrate impact to haemostatic valve, guarantees that the physical property of haemostatic valve material is constant, significantly reduces the frictional force of haemostatic valve in the use procedure simultaneously.
(4) bilayer is extruded the design of sheath pipe: adopt the soft or hard materials double-layer of certain layer thickness rate to extrude the sheath pipe, farthest guaranteed the fracture resistance of sheath pipe.
Description of drawings
Fig. 1 is catheter sheath structural representation of the present utility model.
Fig. 1-1 is the partial enlarged drawing at A place among Fig. 1.
Fig. 2 is the front view of this utility model haemostatic valve.
Fig. 2-1 is the top view of Fig. 2.
Fig. 3 is the structural representation of this utility model sheath pipe pipe shaft.
Fig. 3-1 is the right view of Fig. 3.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is described in further detail.
Shown in Fig. 1, Fig. 1-1, this utility model catheter sheath comprises the leading sheath pipe 2 of getting involved and is used for the system of collateral branch 3 of suction, system of collateral branch 3 is installed on the sheath pipe 2, the rear end of sheath pipe 2 is provided with leakage-resistant device 1, haemostatic valve 5 in the leakage-resistant device 1 is embedded in the middle of bonnet 4 and the sheath base 6, has consisted of a good sealing system.
Shown in Fig. 2, Fig. 2-1, haemostatic valve of the present utility model middle part is provided with compressible cambered surface layer and cross cut.The cross cut can be linear or shaped form, and notch depth is 0.2-1.8mm, and the diameter range that otch can hold insertion apparatus in the blood vessel is 0.3-3mm.The haemostatic valve incision scribbles the liquid-state silicon oil reservoir of medical grade, and wherein the viscosity of liquid-state silicon oil reservoir is 100cps-5000cps.
Shown in Fig. 3, Fig. 3-1, sheath pipe pipe shaft of the present utility model adopts the soft or hard materials double-layer to extrude structure.The bilayer of sheath pipe is extruded in the structure can be designed to skin the soft material layer, also internal layer can be designed to the soft material layer.The bed thickness of sheath pipe bilayer is than being 1:9-9:1.
Haemostatic valve of the present utility model can adopt the polystyrene elastomer, polyethylene elastomer, polyurethane elastomer, silicone rubber, the material structures such as polyisoprene rubber elastomer.
Sheath pipe double layer material of the present utility model can adopt one or more combinations in the material structures such as polyurethane, polyetheramine, polyamide, Merlon, polypropylene, polyethylene, politef or fluoroplastics.
This utility model is compressible and cross cut design in haemostatic valve structure employing band cambered surface, and hemostasis imposed specific lubricated scheme, can make things convenient for other apparatuses to pass through when making this catheter sheath be used for auxiliary interventional therapy operation, and in the operation process without oozing of blood; Sheath pipe pipe shaft adopts the soft or hard materials double-layer to extrude design, has improved its fracture resistance on the basis that guarantees sheath pipe hardness, has following useful effect:
(1) can provide for Percutaneous Coronary Intervention the catheter sheath of a safety convenient, the unique design of haemostatic valve antiseep and Lubrication Design not only can prevent the generation of oozing of blood but also other medical apparatus and instruments facilities are passed through, and reduce resistance.
(2) the leading sheath pipe of getting involved adopts the soft or hard materials double-layer to extrude structure, and neither too hard, nor too soft sheath pipe has excellent fracture resistance, can conveniently insert the generation that blood vessel can reduce again the bending phenomenon in operation process.
Claims (13)
1. catheter sheath, the system of collateral branch (3) that comprises the leading sheath pipe (2) of getting involved and be used for aspirating, system of described collateral branch (3) is installed on the sheath pipe (2), it is characterized in that: the rear end of described sheath pipe (2) is provided with leakage-resistant device (1), and described leakage-resistant device (1) comprises the haemostatic valve (5) that is embedded in bonnet (4) and sheath base (6) centre.
2. catheter sheath according to claim 1 is characterized in that: be compressible cambered surface layer in the middle part of the described haemostatic valve (5), haemostatic valve (5) and bonnet (4) and sheath base (6) formation sealing system.
3. catheter sheath according to claim 2, it is characterized in that: described haemostatic valve (5) is provided with the cross cut.
4. catheter sheath according to claim 3, it is characterized in that: the line of cut of described cross cut is linear or shaped form.
5. catheter sheath according to claim 4, it is characterized in that: the degree of depth of described cross cut is 0.2-1.8mm.
6. catheter sheath according to claim 5 is characterized in that: the diameter range that described cross cut can be held insertion apparatus in the blood vessel is 0.3-3mm.
7. catheter sheath according to claim 2 is characterized in that: described haemostatic valve (5) is polystyrene elastomer, polyethylene elastomer, polyurethane elastomer, silicone rubber or polyisoprene rubber elastomer.
8. catheter sheath according to claim 3, it is characterized in that: the cross cut of described haemostatic valve (5) scribbles the liquid-state silicon oil reservoir of medical grade.
9. catheter sheath according to claim 8, it is characterized in that: the viscosity of described liquid-state silicon oil reservoir is 100cps-5000cps.
10. catheter sheath according to claim 1 is characterized in that: described sheath pipe (2) adopts the soft or hard materials double-layer to extrude structure.
11. catheter sheath according to claim 10 is characterized in that: the skin of described sheath pipe (2) or internal layer are the soft material layer.
12. catheter sheath according to claim 11 is characterized in that: the bed thickness of the inside and outside bilayer of described sheath pipe (2) is than being 1:9-9:1.
13. catheter sheath according to claim 10 is characterized in that: described sheath pipe (2) is polyurethane, polyetheramine, polyamide, Merlon, polypropylene, polyethylene, politef or fluoroplastics structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220466280.1U CN202876024U (en) | 2012-09-13 | 2012-09-13 | Catheter sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220466280.1U CN202876024U (en) | 2012-09-13 | 2012-09-13 | Catheter sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202876024U true CN202876024U (en) | 2013-04-17 |
Family
ID=48067494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220466280.1U Expired - Lifetime CN202876024U (en) | 2012-09-13 | 2012-09-13 | Catheter sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202876024U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106110471A (en) * | 2016-07-26 | 2016-11-16 | 广东百合医疗科技股份有限公司 | A kind of pressure antibacterial central venous catheter |
| CN109199501A (en) * | 2017-07-04 | 2019-01-15 | 先健科技(深圳)有限公司 | Delivery sheath and transportation system |
| CN109561879A (en) * | 2016-05-19 | 2019-04-02 | 阿西斯特医疗***有限公司 | Position sensing in endovascular procedures |
| CN111012411A (en) * | 2019-12-31 | 2020-04-17 | 沛嘉医疗科技(苏州)有限公司 | Guide sheath |
| CN112206399A (en) * | 2020-09-18 | 2021-01-12 | 合肥晟宏医疗器械有限公司 | Vascular catheter sheath assembly |
| US11109838B2 (en) | 2008-12-08 | 2021-09-07 | Acist Medical Systems, Inc. | System and catheter for image guidance and methods thereof |
| CN113521492A (en) * | 2021-06-11 | 2021-10-22 | 先健科技(深圳)有限公司 | Sealing structure, conveying sheath pipe and conveying system |
| CN114746141A (en) * | 2019-11-14 | 2022-07-12 | 阿比奥梅德公司 | Hemostatic valve for a sheath assembly |
| US11406352B2 (en) | 2016-05-19 | 2022-08-09 | Acist Medical Systems, Inc. | Position sensing in intravascular processes |
-
2012
- 2012-09-13 CN CN201220466280.1U patent/CN202876024U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11109838B2 (en) | 2008-12-08 | 2021-09-07 | Acist Medical Systems, Inc. | System and catheter for image guidance and methods thereof |
| CN109561879A (en) * | 2016-05-19 | 2019-04-02 | 阿西斯特医疗***有限公司 | Position sensing in endovascular procedures |
| US11109833B2 (en) | 2016-05-19 | 2021-09-07 | Acist Medical Systems, Inc. | Position sensing in intravascular processes |
| CN109561879B (en) * | 2016-05-19 | 2022-03-29 | 阿西斯特医疗***有限公司 | Position sensing in intravascular procedures |
| US11406352B2 (en) | 2016-05-19 | 2022-08-09 | Acist Medical Systems, Inc. | Position sensing in intravascular processes |
| CN106110471A (en) * | 2016-07-26 | 2016-11-16 | 广东百合医疗科技股份有限公司 | A kind of pressure antibacterial central venous catheter |
| CN109199501A (en) * | 2017-07-04 | 2019-01-15 | 先健科技(深圳)有限公司 | Delivery sheath and transportation system |
| CN114746141A (en) * | 2019-11-14 | 2022-07-12 | 阿比奥梅德公司 | Hemostatic valve for a sheath assembly |
| CN111012411A (en) * | 2019-12-31 | 2020-04-17 | 沛嘉医疗科技(苏州)有限公司 | Guide sheath |
| CN112206399A (en) * | 2020-09-18 | 2021-01-12 | 合肥晟宏医疗器械有限公司 | Vascular catheter sheath assembly |
| CN113521492A (en) * | 2021-06-11 | 2021-10-22 | 先健科技(深圳)有限公司 | Sealing structure, conveying sheath pipe and conveying system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |