CN109045444A - It is a kind of from swollen sheath group - Google Patents
It is a kind of from swollen sheath group Download PDFInfo
- Publication number
- CN109045444A CN109045444A CN201811042835.8A CN201811042835A CN109045444A CN 109045444 A CN109045444 A CN 109045444A CN 201811042835 A CN201811042835 A CN 201811042835A CN 109045444 A CN109045444 A CN 109045444A
- Authority
- CN
- China
- Prior art keywords
- sheath
- swollen
- swollen sheath
- seat
- group
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
-
- 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
- A61B17/00234—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
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/1081—Balloon catheters with special features or adapted for special applications having sheaths or the like for covering the balloon but not forming a permanent part of the balloon, e.g. retractable, dissolvable or tearable sheaths
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/12—Blood circulatory system
Abstract
The invention discloses a kind of from swollen sheath group, including from swollen sheath, restraint device and sheath seat, wherein, it can be radially expanded under certain condition along itself from swollen sheath, sheath seat is connected to one end from swollen sheath, sheath seat and from can be to be detachably connected between swollen sheath, or it non-removable is fixedly connected, restraint device is removably wrapped in from outside swollen sheath, it compresses for fettering from swollen sheath and it is isolated with external environment, make to be in compressive state from swollen sheath, in summary, it is above-mentioned easy to operate when in use from swollen sheath group, without cutting sufferer tissue, aperture is formed using pin puncture is punctured, the wound of formation is small, it is easy healing, it is small to the injury of patient, it can reduce the pain of patient, help to reduce surgery cost and postoperative care difficulty；And it is therein can be radially expanded after constraint relief from swollen sheath, thus formed one be greater than puncture, connection human body inside and outside large scale channel.
Description
Technical field
It is the present invention relates to the field of medical instrument technology, in particular to a kind of from swollen sheath group.
Background technique
With the development of modern medical service technology, produce the method for many minimally-invasive treatments, as percutaneous coronary angioplasty,
X-ray imaging art and other similar operations.These operations are required to the instrument of diagnosing and treating importing following for human body
Loop system.
Most commonly used applied to blood circulation of human body system is seldinger technology, and this method is first with puncture needle
An osculum is opened on blood vessel, then seal wire is intravascular by the inner cavity importing of puncture needle, puncture needle is exited, by expander and sheath
Pipe is intravascular along seal wire importing, withdraws from expander and seal wire, can establish one and arrive endovascular channel in vitro, for small size
Sheath, can the insertion of direct transdermal puncture vessel large-sized sheath is needed tissue dissection, exposure blood vessel again wears by row
Thorn.It is postoperative stitching unstrument to be used to be sutured after tissue dissection, it is surgery cost, postoperative care difficulty, equal to the injury of patient
It will increase.
Therefore, there is an urgent need to research and develop a kind of sheath, intravascular, shape can be sent to by a small puncture orifice
It at large scale channel, while reducing to the injury of patient, surgery cost and postoperative care difficulty, this will be solved and a series of asked
Topic.
Summary of the invention
In view of this, sheath is sent into reaching through a small puncture orifice from swollen sheath group the present invention provides a kind of
It is intravascular, large scale channel is formed, while reducing the purpose to the injury of patient, surgery cost and postoperative care difficulty.
To achieve the above object, the invention provides the following technical scheme:
It is a kind of from swollen sheath group, including from swollen sheath, restraint device and sheath seat, the sheath seat is connected to described from swollen sheath
One end, the restraint device be removably wrapped in it is described from outside swollen sheath, it is described from swollen sheath for fettering compression.
It preferably, further include expander, the expander includes conduit and mounting base, and the conduit first end passes through institute
It states from swollen sheath and the sheath seat and is connect with the mounting base, the mounting base can be detachably connected with the sheath seat, institute
The second end for stating conduit is fitted close described in from outside swollen sheath and with the restraint device.
Preferably, the conduit second end is provided with the sacculus being connected to the conduit.
Preferably, the mounting base is detachably connected with the sheath seat.
Preferably, it is described from swollen sheath by marmem, self-expanding rubber or marmem and macromolecule
The combination of material is made.
Preferably, the restraint device is confinement tube, is formed with tear structure in the confinement tube.
Preferably, the tear structure includes at least one tear line, and the tear line is by multiple along the constraint pipe range
Hole composition is torn in the setting of degree direction.
Preferably, the tear structure includes being set to the confinement tube to tear slot close to one end of the sheath seat.
Preferably, the restraint device is restriction rope, the restriction rope be bundled in it is described from outside swollen sheath, and close
One end of the sheath seat forms knot that can be undone by a pull.
Preferably, the length from swollen sheath is greater than the length of the restraint device.
It can be seen from the above technical scheme that it is provided by the invention from swollen sheath group include from swollen sheath, restraint device with
And sheath seat, wherein can be radially expanded under certain condition along itself from swollen sheath, which can be to remove external constraint
When, when can be temperature and changing, or when encountering water, sheath seat is connected to one end from swollen sheath, sheath seat and between swollen sheath
It can be to be detachably connected, or non-removable to be fixedly connected, restraint device is removably wrapped in from outside swollen sheath, is used
Become smaller in constraint from swollen sheath and compressing it.
When in use, due to suffering restraints the compression of device from swollen sheath, size is smaller, with will after puncture needle puncture vessel
It is sent into blood vessel together from swollen sheath and restraint device, then restraint device is withdrawn from vitro, from swollen sheath enlargement of pipe, forms one
It is connected to the transfer passage of the larger size inside and outside human body.
In conclusion provided by the invention easy to operate when in use from swollen sheath group, without cutting sufferer tissue, using wearing
Pricker punctures to form aperture, and the wound of formation is small, is easy healing, small to the injury of patient, can reduce the pain of patient,
Help to reduce surgery cost and postoperative care difficulty；And it is therein can be radially expanded after contiguity constraint from swollen sheath,
To form a large scale channel being greater than puncture, being connected to inside and outside human body.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram provided in an embodiment of the present invention from swollen sheath group；
Structural schematic diagram when Fig. 2 is the removal provided in an embodiment of the present invention from swollen sheath group restraint device；
Fig. 3 is the structural schematic diagram after the removal provided in an embodiment of the present invention from swollen sheath group restraint device；
Fig. 4 is the structural schematic diagram provided in an embodiment of the present invention when exiting from swollen sheath group expander；
Fig. 5 be it is provided in an embodiment of the present invention from swollen sheath group expander exit after structural schematic diagram.
Wherein, 1 is sheath seat；2 be from swollen sheath；3 be restraint device；4 be conduit；5 be mounting base；6 be blood vessel；7 be ball
Capsule.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, Fig. 1 is the structural schematic diagram provided in an embodiment of the present invention from swollen sheath group.
It is provided in an embodiment of the present invention from swollen sheath group, including from swollen sheath 2, restraint device 3 and sheath seat 1.
Wherein, it can be radially expanded under certain condition along itself from swollen sheath 2, which can be to remove external constraint
When, or when encountering water, sheath seat 1 is connected to one end from swollen sheath 2, sheath seat 1 and from can be detachably to connect between swollen sheath 2
It connects, or non-removable to be fixedly connected, restraint device 3 is removably wrapped in from outside swollen sheath 2, for fettering compression
From swollen sheath 2 and it is isolated with external environment, makes to be in compressive state from swollen sheath 2.
Compared with prior art, it is provided in an embodiment of the present invention from swollen sheath group when in use, due to from swollen sheath 2 by about
The compression of bundle device 3, size is smaller, will be sent into together blood from swollen sheath 2 and restraint device 3 after puncture needle puncture vessel 6
Then pipe 6 is withdrawn from restraint device 3 in vitro, as shown in Figures 2 and 3, expand, formed inside and outside a connection human body from swollen sheath 2
Larger size transfer passage；It can be seen that it is above-mentioned easy to operate from swollen sheath group, without cutting sufferer tissue, utilize puncture
Pin puncture forms aperture, and the wound of formation is small, is easy healing, small to the injury of patient, can reduce the pain of patient, has
Help reduce surgery cost and postoperative care difficulty；And it is therein can be radially expanded after contiguity constraint from swollen sheath 2, from
And it is capable of forming a large scale channel being greater than puncture, being connected to inside and outside human body.
In general, from swollen sheath 2 after removing external constraint can self-expansion, but to avoid the occurrence of from swollen sheath
The case where pipe 2 can not be successfully expansion further includes in embodiments of the present invention expander from swollen sheath group, which includes conduit 4
And mounting base 5,4 first end of conduit are passed through and are connect from swollen sheath 2 and sheath seat 1 with mounting base 5, mounting base 5 can be with sheath seat 1
It is detachably connected, the second end of conduit 4 is located at outer from swollen sheath 2 and is fitted close with restraint device 3, and no step easily enters
Blood vessel and from swollen sheath 2, and the cross sectional dimensions of 4 second end of conduit be greater than under constrained state from the transversal of swollen sheath
Face size, in this way, only need to unload mounting base 5 from sheath seat 1 after the conduit 4 of sheath and expander is inserted into blood vessel 6 by user
Under, conduit 4 is taken out backward, as shown in figure 4, being greater than the cross section ruler from swollen sheath 2 due to the second end cross sectional dimensions of conduit 4
It is very little, expansion will be completed under the effect of conduit 4 from swollen sheath 2, so that it is guaranteed that can smoothly expand from swollen sheath 2, as shown in Figure 5.
, can be after expander to be withdrawn from vitro if undesirable from swollen 2 expansion effect of sheath, another sacculus of being sent into is expanded.
Preferably, as shown in Fig. 2, in embodiments of the present invention, 4 second end of conduit is provided with to be connected to conduit 4
Sacculus 7 can be passed through gas into sacculus 7 or liquid is allowed to expand to expand undesirable ground from swollen sheath 2 when in use
Side is extended (especially near puncture orifice).
Above-mentioned technical proposal is advanced optimized, mounting base 5 is detachably connected with sheath seat 1, in order to which expander is taken out, on
Stating mounting base 5 includes but is not limited to be threadedly coupled, snap connection with the detachable connection method of sheath seat 1.
It is understood that 4 second end of conduit is easy to cause the end from swollen sheath 2 if directly pulled out conduit 4
Portion occurs damaged, to avoid this problem, a taper face can be arranged in 4 second end of conduit, thus with from the end of swollen sheath 2
When cooperation, be capable of forming expansion pattern from small to large, avoid the end from swollen sheath 2 occur largely to expand suddenly and
There is damaged problem.
Above-mentioned technical proposal is advanced optimized, in embodiments of the present invention, from swollen sheath 2 by marmem, from swollen
The combination of swollen rubber or marmem and high molecular material is made.
Restraint device 3 can use various structures, such as tubulose, winding shape etc., in an embodiment of the present invention, about
Bundle device 3 is confinement tube, is formed with tear structure in confinement tube, by the way that tear structure is arranged, can be placed to from swollen sheath 2
Behind position, quickly confinement tube is unloaded from from swollen sheath 2, it is easy to operate.
It is of course also possible to be not provided with tear structure, and make sheath seat 1 from being unloaded from swollen sheath 2, then by restraint device
3 remove from from swollen sheath 2.
Preferably, in embodiments of the present invention, tear structure includes at least one tear line, and tear line is by multiple edges
Hole composition is torn in the setting of confinement tube length direction.
Above-mentioned tear line can be set two, is symmetrically dispersed in confinement tube, tears when in use to two sides, such as scheme
Shown in 2, naturally it is also possible to be arranged side by side, to form a tear-open strip in confinement tube, form one in the end of the tear-open strip and draw
Head is in order to tearing.
Certain tear structure can also be using other structures, for example tear structure includes being set to confinement tube close to sheath seat
Slot is torn in 1 one end, and further, tearing slot can be simutaneously arranged with above-mentioned tear-open strip on restraint device 3.
In addition to above described tubular structure, restraint device 3 can also use other structures, in another embodiment of the invention,
Restraint device 3 is restriction rope, and restriction rope is bundled in from outside swollen sheath 2, and forms knot that can be undone by a pull in one end close to sheath seat 1, is made
Used time need to only unlock the knot that can be undone by a pull of restriction rope end, then stretch out restriction rope.
Above-mentioned technical proposal is advanced optimized, in embodiments of the present invention, is greater than restraint device 3 from the length of swollen sheath 2
Length.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of from swollen sheath group, which is characterized in that including from swollen sheath, restraint device and sheath seat, the sheath seat is connected to institute
State one end from swollen sheath, the restraint device be removably wrapped in it is described from outside swollen sheath, for fetter compression it is described from
Swollen sheath.
2. according to claim 1 from swollen sheath group, which is characterized in that further include expander, the expander includes conduit
And mounting base, the conduit first end are connect from swollen sheath and the sheath seat with the mounting base across described, the peace
Dress seat can be detachably connected with the sheath seat, and the second end of the conduit is about got one's things ready from outside swollen sheath and with described positioned at described
Set tight fit.
3. according to claim 2 from swollen sheath group, which is characterized in that the conduit second end is provided with to be connected with the conduit
Logical sacculus.
4. according to claim 2 or 3 from swollen sheath group, which is characterized in that the mounting base detachably connects with the sheath seat
It connects.
5. according to claim 1 to 3 from swollen sheath group, which is characterized in that it is described from swollen sheath by shape memory
The combination of alloy, self-expanding rubber or marmem and high molecular material is made.
6. according to claim 1 to 3 from swollen sheath group, which is characterized in that the restraint device is confinement tube,
Tear structure is formed in the confinement tube.
7. according to claim 6 from swollen sheath group, which is characterized in that the tear structure includes at least one tear line,
The tear line is made of multiple holes of tearing along confinement tube length direction setting.
8. according to claim 6 from swollen sheath group, which is characterized in that the tear structure includes being set to the confinement tube
Slot is torn close to one end of the sheath seat.
9. according to claim 1 to 3 from swollen sheath group, which is characterized in that the restraint device is restriction rope,
The restriction rope forms knot that can be undone by a pull from outside swollen sheath, and in one end close to the sheath seat described in being bundled in.
10. according to claim 1 from swollen sheath group described in -3 and 7-8 any one, which is characterized in that the length from swollen sheath
Degree is greater than the length of the restraint device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811042835.8A CN109045444A (en) | 2018-09-07 | 2018-09-07 | It is a kind of from swollen sheath group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811042835.8A CN109045444A (en) | 2018-09-07 | 2018-09-07 | It is a kind of from swollen sheath group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109045444A true CN109045444A (en) | 2018-12-21 |
Family
ID=64760879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811042835.8A Pending CN109045444A (en) | 2018-09-07 | 2018-09-07 | It is a kind of from swollen sheath group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109045444A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849026A (en) * | 2022-04-11 | 2022-08-05 | 北京泰杰伟业科技有限公司 | Brain tissue path sheath tube system with balloon dilatation |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3877429A (en) * | 1973-11-30 | 1975-04-15 | David L Rasumoff | Catheter placement device |
| US4601713A (en) * | 1985-06-11 | 1986-07-22 | Genus Catheter Technologies, Inc. | Variable diameter catheter |
| US4710181A (en) * | 1985-06-11 | 1987-12-01 | Genus Catheter Technologies, Inc. | Variable diameter catheter |
| US4738666A (en) * | 1985-06-11 | 1988-04-19 | Genus Catheter Technologies, Inc. | Variable diameter catheter |
| US5190528A (en) * | 1990-10-19 | 1993-03-02 | Boston University | Percutaneous transseptal left atrial cannulation system |
| US5935122A (en) * | 1991-12-13 | 1999-08-10 | Endovascular Technologies, Inc. | Dual valve, flexible expandable sheath and method |
| US20060052750A1 (en) * | 2004-09-09 | 2006-03-09 | Jay Lenker | Expandable transluminal sheath |
| US20130204270A1 (en) * | 2012-02-06 | 2013-08-08 | Boston Scientific Neuromodulation Corporation | Insertion assembly for an electrical stimulation system and related methods of use |
| US20170014157A1 (en) * | 2015-07-17 | 2017-01-19 | Creganna Medical | Expandable introducer sheath |
-
2018
- 2018-09-07 CN CN201811042835.8A patent/CN109045444A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3877429A (en) * | 1973-11-30 | 1975-04-15 | David L Rasumoff | Catheter placement device |
| US4601713A (en) * | 1985-06-11 | 1986-07-22 | Genus Catheter Technologies, Inc. | Variable diameter catheter |
| US4710181A (en) * | 1985-06-11 | 1987-12-01 | Genus Catheter Technologies, Inc. | Variable diameter catheter |
| US4738666A (en) * | 1985-06-11 | 1988-04-19 | Genus Catheter Technologies, Inc. | Variable diameter catheter |
| US5190528A (en) * | 1990-10-19 | 1993-03-02 | Boston University | Percutaneous transseptal left atrial cannulation system |
| US5935122A (en) * | 1991-12-13 | 1999-08-10 | Endovascular Technologies, Inc. | Dual valve, flexible expandable sheath and method |
| US20060052750A1 (en) * | 2004-09-09 | 2006-03-09 | Jay Lenker | Expandable transluminal sheath |
| US20130204270A1 (en) * | 2012-02-06 | 2013-08-08 | Boston Scientific Neuromodulation Corporation | Insertion assembly for an electrical stimulation system and related methods of use |
| US20170014157A1 (en) * | 2015-07-17 | 2017-01-19 | Creganna Medical | Expandable introducer sheath |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849026A (en) * | 2022-04-11 | 2022-08-05 | 北京泰杰伟业科技有限公司 | Brain tissue path sheath tube system with balloon dilatation |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181221 |