CN108057166A - Medical adjustable instrument sheath - Google Patents
Medical adjustable instrument sheath Download PDFInfo
- Publication number
- CN108057166A CN108057166A CN201711309719.3A CN201711309719A CN108057166A CN 108057166 A CN108057166 A CN 108057166A CN 201711309719 A CN201711309719 A CN 201711309719A CN 108057166 A CN108057166 A CN 108057166A
- Authority
- CN
- China
- Prior art keywords
- sheath
- wall
- connection wall
- connection
- bindiny mechanism
- 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.)
- Withdrawn
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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
-
- 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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M2025/0025—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter having a collapsible lumen
Abstract
The present invention relates to a kind of medical adjustable instrument sheath, it is related to medical instruments field, main purpose is to solve existing to cause the technical issues of cumbersome, cost is higher by the expansion and diminution of air bag to adjust the caliber of operation sheath.The technical solution mainly used for：Medical adjustable instrument sheath, including bindiny mechanism, fixed structure and sheath wall；Both sheath wall and bindiny mechanism interlock successively and head and the tail connection forms tubular structure；Bindiny mechanism includes the first connection wall and the second connection wall；First connection wall is rotatablely connected with the second connection wall, and the first connection wall is rotatablely connected with the first sheath wall, and the second connection wall is rotatablely connected with the second sheath wall；Wherein, for medical adjustable instrument sheath in first state, both the first connection wall and the second connection wall keep opposite opening under the action of fixed structure, make tubular structure cylindrical；In the second state, both the first connection wall and the second connection wall are opposite to be closed medical adjustable instrument sheath to tubular structure inside.
Description
Technical field
The invention belongs to the field of medical instrument technology, are related to medical body cavity pipeline device for posting, are a kind of doctors more particularly
With adjustable instrument sheath.
Background technology
Endoscopic technic is clinically widely used, and has many advantages, such as damaging small, and post-operative recovery is fast.And before operation, often
Sufficiently large passage need to be established in advance by a kind of operation sheath, then operated in vivo by operating the cavity entrance inside sheath.
At present, the method for common Path Setup is outer expanding, i.e., inserts a thin seal wire first as guiding thing,
The fixed-size sheath of tube chamber is inserted further along this root seal wire, is then log out seal wire, passage structure is completed.There are following for this method
Deficiency：First, since sheath surrounds outside seal wire, when placing sheath along seal wire, sheath tube wall and tissue direct friction are held
Easily cause tissue damage；Second, sheath is relatively large in diameter, body cavities and tissue are significantly expanded by force, to pain caused by patient
It is bitter very big.
There are also existing by the expansion and diminution of air bag come adjust operation sheath caliber, with mitigate put pipe or tube drawing caused by
Pain and damage, however this kind of method be due to needing in use to airbag aeration set so as to need additionally to add inflation
It is standby, so not only operate cumbersome, but also cost is also higher.
The content of the invention
In view of this, the present invention provides a kind of medical adjustable instrument sheath, and main purpose is to solve existing to pass through air bag
Expansion and diminution come adjust operation sheath caliber cause the technical issues of cumbersome, cost is higher.
In order to achieve the above objectives, present invention generally provides following technical solutions：
The embodiment of the present invention provides a kind of medical adjustable instrument sheath, including bindiny mechanism, fixed structure and in circle
The sheath wall of arcuation；
The quantity of the sheath wall and the bindiny mechanism is equal and is two or more；
Both the sheath wall and the bindiny mechanism interlock successively and head and the tail connection forms tubular structure；
The bindiny mechanism includes the first connection wall and second connection wall and is in both arc-shaped；The sheath wall
The first sheath wall including being located at bindiny mechanism one side and the second sheath wall positioned at bindiny mechanism's opposite side；First connection wall
One end and one end of second connection wall are rotatablely connected by shaft, the other end of first connection wall and first sheath
One end rotation connection of wall, the other end of second connection wall and one end of the second sheath wall are rotatablely connected；
In first state, both first connection wall and second connection wall exist the medical adjustable instrument sheath
It keeps opposite under the action of the fixed structure to open, makes the tubular structure cylindrical；The medical adjustable instrument sheath
In the second state, both first connection wall and second connection wall are opposite to be closed to the inside of the tubular structure；
Wherein, first connection wall and second connection wall are both made of elastic material；The medical operation
Pin is in first state, the end face of the end face of described one end of first connection wall and described one end of second connection wall
It offsets and the two contacts for face, to form the fixed structure.
By above-mentioned technical proposal, the medical adjustable instrument sheath of the present invention at least has the advantages that：
In technical solution provided by the invention, because both first connection wall and the second connection wall of bindiny mechanism are opposite
It is closed to the inside of tubular structure or is opened relatively to the outside of tubular structure, you can change the caliber of operation sheath, put with mitigating
Pipe or tube drawing are to pain caused by patient and damage, and due to the charger without using air bag and to airbag aeration, from
And operating efficiency is higher, cost is relatively low.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate attached drawing be described in detail as after.
Description of the drawings
Fig. 1 is a kind of structure letter of the medical adjustable instrument sheath of one embodiment of the invention offer in first state
Figure；
Fig. 2 is structure diagram of the medical adjustable instrument sheath in the second state in Fig. 1；
Fig. 3 is structure letter of the medical adjustable instrument sheath of another kind of one embodiment of the invention offer in first state
Figure；
Fig. 4 is structure diagram of the medical adjustable instrument sheath in the second state in Fig. 3；
Fig. 5 is a kind of structure diagram of the first connection wall of bindiny mechanism that one embodiment of the invention provides；
Fig. 6 is both the first connection wall and the second connection wall of a kind of bindiny mechanism that one embodiment of the invention provides phases
Structure diagram during to opening；
Fig. 7 is a kind of being existed using the medical adjustable instrument sheath of Tu6Zhong bindiny mechanisms of one embodiment of the invention offer
Structure diagram during first state；
Fig. 8 is the structure diagram of the first connection wall of another bindiny mechanism that one embodiment of the invention provides；
Fig. 9 is both the first connection wall and second connection wall of another bindiny mechanism that one embodiment of the invention provides
Structure diagram during opposite opening；
Figure 10 is a kind of being existed using the medical adjustable instrument sheath of Tu9Zhong bindiny mechanisms of one embodiment of the invention offer
Structure diagram during first state；
Figure 11 is structure of the medical adjustable instrument sheath of another kind of one embodiment of the invention offer in first state
Schematic diagram.
Reference numeral：1st, sheath wall；11st, the first sheath wall；12nd, the second sheath wall；100th, medical adjustable instrument sheath；2nd, machine is connected
Structure；21st, the first connection wall；211st, groove；212nd, sliding slot；213rd, card slot；22nd, the second connection wall；221st, link up with；3rd, shaft；4、
Sliding block；5th, groove is thinned；6th, thin-walled.
Specific embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Attached drawing and preferred embodiment to specific embodiment, structure, feature and its effect according to the present patent application, are described in detail such as
Afterwards.In the following description, what different " embodiment " or " embodiment " referred to is not necessarily the same embodiment.It is in addition, one or more
Special characteristic, structure or feature in a embodiment can be combined by any suitable form.
As depicted in figs. 1 and 2, the medical adjustable instrument sheath 100 of one kind that one embodiment of the present of invention proposes, including
Sheath wall 1, bindiny mechanism 2 and fixed structure.Sheath wall 1 is in arc-shaped.Sheath wall 1 is equal with the quantity of bindiny mechanism 2 and is two
More than.Both sheath wall 1 and bindiny mechanism 2 interlock successively and head and the tail connection forms tubular structure.
As depicted in figs. 1 and 2, bindiny mechanism 2 includes the first connection wall 21 and the second connection wall 22.First connection wall, 21 He
Second connection wall 22 is in both arc-shaped.Sheath wall 1 is included positioned at the first sheath wall 11 of 2 one side of bindiny mechanism and positioned at connection machine
Second sheath wall 12 of 2 opposite side of structure.One end of first connection wall 21 and one end of the second connection wall 22 are rotatablely connected.First connection
One end of the other end of wall 21 and the first sheath wall 11 is rotatablely connected.One end of the other end of second connection wall 22 and the second sheath wall 12
Rotation connection.
The medical adjustable instrument sheath 100 of the present invention has at least two states.As shown in Fig. 2, medical adjustable instrument
For sheath 100 in first state, both the first connection wall 21 and the second connection wall 22 keep opposite under the action of fixed structure
It opens, makes tubular structure cylindrical.As shown in Figure 1, medical adjustable instrument sheath 100 is in the second state, the first connection wall 21
It is opposite with both the second connection walls 22 to be closed to tubular structure inside, reduce the outer diameter of medical adjustable instrument sheath 100, so
Doctor is facilitated to put pipe or tube drawing in this second state, pain and the damage of patient can be mitigated.
Wherein, Fig. 1 shows a kind of medical adjustable instrument sheath of tool there are two bindiny mechanism and two sheath walls first
Structure diagram during state；Fig. 2 is structure diagram of the medical adjustable instrument sheath in the second state in Fig. 1.Fig. 3 shows one
Structure diagram of the kind tool there are four the medical adjustable instrument sheath of bindiny mechanism and four sheath walls in first state；Fig. 4 is Fig. 3
In structure diagram of the medical adjustable instrument sheath in the second state.
Specifically in operation, both the first connection wall 21 and the second connection wall 22 are opposite is closed to tubular structure inside, makes
Medical adjustable instrument sheath 100 is in the second state (as shown in Figure 2 and Figure 4), and doctor will be medical adjustable in this second state
Section instrument sheath 100 is inserted in patient body；Then the first connection wall 21 and the second connection wall 22 are opened out against again, makes tubulose
Structure is cylindrical, medical adjustable instrument sheath 100 is switched to first state (as shown in figures 1 and 3), at this time tubulose
The inside of structure forms operating walk way, and scope can be via the operating walk way into patient body；After operation, then by
One connection wall 21 and the second connection wall 22 are opposite to tubular structure inside closure, subtract the outer diameter of medical adjustable instrument sheath 100
Small (as shown in Figure 2 and Figure 4), so as to easily take out medical adjustable instrument sheath 100 from the patient, to mitigate tube drawing
Pain and damage caused by patient.
In the technical solution of above-mentioned offer, due to the charger without using air bag and to airbag aeration, so as to grasp
It is higher to make efficiency, cost is relatively low.
One end of foregoing first connection wall 21 and one end of the second connection wall 22 can realize rotation connection by shaft 3,
Its structure is relatively simple, realizes more convenient.Preferably, as shown in figure 5, the middle part of one end of the first connection wall 21 can be equipped with
Groove 211, shaft 3 are arranged on the opening of groove 211.As shown in fig. 6, the middle part of one end of the second connection wall 22 is equipped with hook
221, hook 221 hooks shaft 3, and 3 can rotate around the shaft.
Further, foregoing shaft 3 can be integrally formed in the first connection wall 21, to improve the company of shaft 3 and first
Connect the connective stability of wall 21 between the two.
Likewise, hook 221 can also be integrally formed in the second connection wall 22, it is connected with improving hook 221 with second
Connective stability between wall 22.
In order to realize the function of foregoing fixed structure, make both the first connection wall 21 and the second connection wall 22 can be in fixation
It keeps opposite under the action of structure to open, in one example, the embodiment of the present invention also provides following technical solution：Such as figure
Shown in 6 and Fig. 7, both the first connection wall 21 and the second connection wall 22 can be made of elastic material.The medical behaviour of the present invention
It sells in first state, the end face of one end of the end face of one end of the first connection wall 21 and the second connection wall 22 offsets and two
Person contacts for face, to form foregoing fixed structure.In the technical program, end face and the second connection wall of the first connection wall 21
22 end face has frictional resistance between the two, and face contact between the two can increase the frictional resistance, to prevent first from connecting
It connects the opposite inside to tubular structure of both 21 and second connection walls of wall 22 to be closed, so that the first connection wall 21 and the second connection
Both walls 22 can keep the state of opposite opening.Terminate to need medical adjustable instrument sheath 100 from first when doctor operates
When state switches to the second state, the connection of finger or external tool to the first connection wall 21 and the second connection wall 22 can be used
Locate applied force, to overcome the frictional resistance between the first connection wall 21 and the second connection wall 22, make the first connection wall 21 and second
Both connections are opposite to be closed to tubular structure inside, so as to form the second state of medical adjustable instrument sheath 100.
Certainly, foregoing fixed structure can also use other technical solutions, such as in another example, such as Fig. 8 institutes
Show, the side of one end of foregoing first connection wall 21 can be equipped with sliding slot 212.As shown in figure 9, one end of the second connection wall 22
Side is equipped with and the 212 corresponding card slot 213 of sliding slot.Foregoing fixed structure includes the sliding block 4 for being slidedly arranged on sliding slot 212.Such as
Shown in Fig. 9 and Figure 10, when the medical adjustable instrument sheath 100 of the present invention is in first state, a part for sliding block 4 is via sliding slot
212 slip into card slot 213, and so as to which the part of sliding block 4 is located in the sliding slot 212 of the first connection wall 21, another part is positioned at the
In the card slot 213 of two connection walls 22, and then sliding block 4 can make the first connection wall 21 and the second connection wall 22 be maintained at opposite opening
State.When sliding block 4 is all retracted out of card slot 213 in sliding slot 212, both the first connection wall 21 and the second connection wall 22 are again
It opposite can be closed to tubular structure inside, medical adjustable instrument sheath 100 made to switch to the second state from first state.
Further, foregoing sliding block 4 can have the operation portion of 21 side of the first connection wall of protrusion, user to be facilitated to lead to
The operation portion sliding slider 4 is crossed, and the first connection wall 21 can also be made by the operation portion to 21 applied force of the first connection wall
It is opposite with both the second connection walls 22 to open or be closed, the operation of user is facilitated, medical adjustable instrument sheath 100 can be improved
Switch to the efficiency of first state or the second state.
Need exist for explanation be：The quantity of foregoing bindiny mechanism 2 can be even number, wherein, each bindiny mechanism 2 is two-by-two
It is symmetrical arranged, user to be facilitated to open or be closed symmetrical Liang Ge bindiny mechanisms 2.
Further, foregoing sliding slot 212 can have clamping portion, and the first sliding block 4 is connected in sliding slot 212, prevent
Only the first sliding block 4 is deviate from from the side of the first connection wall 21.Wherein, above-mentioned clamping portion can be with dovetail-shape shape, correspondingly, sliding
Slot 212 is dovetail groove.
Further, the opening size of foregoing card slot 213 can be more than sliding slot 212 opening size, with facilitate sliding block 4 from
Sliding slot 212 is slipped into card slot 213.
Further, as shown in Fig. 6 and Fig. 9, both the first foregoing connection wall 21 and the second connection wall 22 can be tool
There is mutually isostructural connection wall, to reduce number of parts, reduce processing cost.
Likewise, the structure of foregoing each sheath wall 1 can also be identical, to reach reduction number of parts, reduce processing cost
Technique effect.
In order to realize the technique effect of both foregoing first connection wall, 21 and first sheath wall 11 rotation connections, reality of the invention
It applies example and following technical solution is also provided：As shown in figure 11, the other end of the first foregoing connection wall 21 and the first sheath wall 11
Both one end can be an integral molding structure, and the junction of the two is equipped with and groove 5 is thinned, thin to be formed in the junction of the two
Wall 6 makes the other end of the first connection wall 21 and one end of the first sheath wall 11 be realized by the thin-walled 6 and is rotatablely connected.In this example
In, the connective stability of 11 the two of the first connection wall 21 and the first sheath wall is preferable.
In order to realize the technique effect of both foregoing second connection wall, 22 and second sheath wall 12 rotation connections, reality of the invention
It applies example and following technical solution is also provided：As shown in figure 11, one end two of the other end of the second connection wall 22 and the second sheath wall 12
Person can be an integral molding structure, and the junction of the two is equipped with and groove 5 is thinned, and to form thin-walled 6 in the junction of the two, makes
It is realized and is rotatablely connected by thin-walled 6 in one end of the other end of second connection wall 22 and the second sheath wall 12.In this example, second connects
The connective stability for connecing both 22 and second sheath walls of wall 12 is preferable.
Need exist for explanation be：In the case where there is no conflict, those skilled in the art can incite somebody to action according to actual conditions
Relevant technical characteristic is mutually combined in above-mentioned each example, to reach corresponding technique effect, particularly for various combined situations
It does not repeat one by one herein.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention, according to
According to any simple modification, equivalent change and modification that the technical spirit of the present invention makees above example, this hair is still fallen within
In the range of bright technical solution.
Claims (1)
1. a kind of medical adjustable instrument sheath, which is characterized in that including bindiny mechanism (2), fixed structure and the sheath in arc-shaped
Wall (1)；
The quantity of the sheath wall (1) and the bindiny mechanism (2) is equal and is two or more；
Both the sheath wall (1) and the bindiny mechanism (2) are interlocked successively and head and the tail connection forms tubular structure；
The bindiny mechanism (2) includes the first connection wall (21) and second connection wall (22) and is in both arc-shaped；Institute
Stating sheath wall (1) includes the first sheath wall (11) positioned at bindiny mechanism (2) one side and the second sheath positioned at bindiny mechanism (2) opposite side
Wall (12)；One end of first connection wall (21) and one end of second connection wall (22) are rotatablely connected by shaft (3),
The other end of first connection wall (21) and one end of the first sheath wall (11) are rotatablely connected, second connection wall (22)
One end of the other end and the second sheath wall (12) be rotatablely connected；
The medical adjustable instrument sheath is in first state, first connection wall (21) and second connection wall (22) two
Person keeps opposite opening under the action of the fixed structure, makes the tubular structure cylindrical；The medical adjustable device
For tool sheath in the second state, both first connection wall (21) and second connection wall (22) are opposite to the tubular structure
Inside is closed；
Wherein, first connection wall (21) and second connection wall (22) are both made of elastic material；It is described medical
Operation pin is in first state, the end face of described one end of first connection wall (21) and the institute of second connection wall (22)
The end face for stating one end offsets and the two is face contact, to form the fixed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711309719.3A CN108057166A (en) | 2017-12-11 | 2017-12-11 | Medical adjustable instrument sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711309719.3A CN108057166A (en) | 2017-12-11 | 2017-12-11 | Medical adjustable instrument sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108057166A true CN108057166A (en) | 2018-05-22 |
Family
ID=62136509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711309719.3A Withdrawn CN108057166A (en) | 2017-12-11 | 2017-12-11 | Medical adjustable instrument sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108057166A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004037333A1 (en) * | 2002-10-25 | 2004-05-06 | Nmt Medical, Inc. | Expandable sheath tubing |
| CN103418071A (en) * | 2012-05-23 | 2013-12-04 | 贝克顿·迪金森公司 | Collapse-resistant swellable catheter |
| CN105877815A (en) * | 2016-05-26 | 2016-08-24 | 林新颖 | Diameter-adjustable skin extension device |
| CN106137366A (en) * | 2016-07-27 | 2016-11-23 | 刘小勇 | A kind of memory alloy pipes making Expansible centrum support frame |
| CN206372160U (en) * | 2016-10-20 | 2017-08-04 | 杭州启明医疗器械有限公司 | A kind of local deformation expands formula catheter sheath and intervention apparatus conveying device |
| CN107466242A (en) * | 2015-01-22 | 2017-12-12 | 波士顿科学国际有限公司 | The expansible sheath of full compliance heavy caliber |
-
2017
- 2017-12-11 CN CN201711309719.3A patent/CN108057166A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004037333A1 (en) * | 2002-10-25 | 2004-05-06 | Nmt Medical, Inc. | Expandable sheath tubing |
| CN103418071A (en) * | 2012-05-23 | 2013-12-04 | 贝克顿·迪金森公司 | Collapse-resistant swellable catheter |
| CN107466242A (en) * | 2015-01-22 | 2017-12-12 | 波士顿科学国际有限公司 | The expansible sheath of full compliance heavy caliber |
| CN105877815A (en) * | 2016-05-26 | 2016-08-24 | 林新颖 | Diameter-adjustable skin extension device |
| CN106137366A (en) * | 2016-07-27 | 2016-11-23 | 刘小勇 | A kind of memory alloy pipes making Expansible centrum support frame |
| CN206372160U (en) * | 2016-10-20 | 2017-08-04 | 杭州启明医疗器械有限公司 | A kind of local deformation expands formula catheter sheath and intervention apparatus conveying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180522 |
|
| WW01 | Invention patent application withdrawn after publication |