CN105266748B - Anti-tissue damage endoscope obturator - Google Patents
Anti-tissue damage endoscope obturator Download PDFInfo
- Publication number
- CN105266748B CN105266748B CN201410487688.0A CN201410487688A CN105266748B CN 105266748 B CN105266748 B CN 105266748B CN 201410487688 A CN201410487688 A CN 201410487688A CN 105266748 B CN105266748 B CN 105266748B
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- CN
- China
- Prior art keywords
- endoscope
- obturator
- epitheca
- damages
- closed head
- 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.)
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Abstract
The invention provides an anti-tissue damage endoscope obturator capable of being pulled from or inserting an endoscope sheath; the obturator comprises a push rod with an outer diameter slightly smaller than an inner diameter of the sheath, and a closing head connected in front of the push rod and capable of penetrating and extending outside the front end of the sheath. The closing head is made of flexible material, and can be deformed, when encountered with peripheral axial direction resistance, so as to form a smooth arc surface around the front end of the sheath, thus shielding the front end of the sheath. The anti-tissue damage endoscope obturator can reduce damage incidence rate of surrounding tissues.
Description
Technical field
The present invention relates to a kind of preventing tissue damages endoscope's obturator, belong to medical instruments field.
Background technology
In conventional endoscope field, in order that endoscope's epitheca can smoothly and safety is inserted in target internal organs,
Obturator would generally be inserted in endoscope's epitheca, the cavity hollow for making up endoscope's epitheca, and it is round and smooth using obturator
End form a more rounded head end with endoscope epitheca, reduced during endoscope's epitheca insertion human body to greatest extent
Caused damage, but current all of endoscope's obturator is rigid material and makes, and which is still deposited between epitheca end
In the ladder with sheath materials thickness equidimension, the ladder can cause epitheca rough and have sharp edge, so as to meeting
A certain degree of scratch is caused to the tissue of surrounding or is stabbed.
The content of the invention
The present invention is carried out to solve the above problems, it is therefore intended that provide a kind of damage that can reduce perienchyma
The preventing tissue for hindering incidence rate damages endoscope's obturator.
The present invention to achieve these goals, employs following structure：
The present invention provides a kind of preventing tissue and damages endoscope's obturator, can extract or insert from the epitheca of endoscope, and which is special
Levy and be, including：External diameter is slightly less than the push rod of epitheca internal diameter, and be connected in front of push rod can be through and out epitheca front end
Closed head.
Wherein, closed head is fabricated from a flexible material, and closed head is met peripheral, axial resistance and can be deformed upon and in epitheca front end
Around form round and smooth cambered surface, so as to block the edge of epitheca front end.
In addition, the preventing tissue in the present invention is damaged in endoscope's obturator, can also have the feature that：Wherein, prevent
During endoscope of tissue injury obturator insertion tissue, closed head can change with the shape with the shape of tissue or organ.
In addition, the preventing tissue in the present invention is damaged in endoscope's obturator, can also have the feature that：Wherein, it is soft
Property material be silica gel, material modified silica gel, rubber, modified rubber material, polyurethane, polyurethane-modified material, thermoplastic elastic
In body or thermoplastic elastomer modified material any one or at least two combination.
In addition, the preventing tissue in the present invention is damaged in endoscope's obturator, can also have the feature that：Wherein, seal
The end for closing head arranges surface and has an externally threaded columnar projections, the front end of push rod arrange be engaged with projection and surface have it is interior
The groove of screw thread, external screw thread and female thread are worked in coordination.
Invention effect and effect
Preventing tissue of the invention damages endoscope's obturator, as closed head is fabricated from a flexible material, therefore when anti-
During endoscope of tissue injury obturator insertion tissue, closed head is met peripheral, axial resistance and can be deformed upon and in epitheca front end
Around form round and smooth cambered surface, epitheca front end can be blocked so that epitheca surface will not expose sharp edge, so as to reduce week
The rate of injury of Selvage Stitch.
Description of the drawings
Fig. 1 is that the preventing tissue of the present invention damages dimensional structure diagram of endoscope's obturator in embodiment；
Fig. 2 is that the preventing tissue of the present invention damages structural representation of endoscope's obturator in embodiment；
Fig. 3 is that the preventing tissue of the present invention damages generalized section of endoscope's obturator in embodiment；
Fig. 4 is that the preventing tissue of the present invention damages section signal of endoscope's obturator when closed head occurs integrally bending
Figure；
Fig. 5 is that the preventing tissue of the present invention damages structural representation of endoscope's obturator when closed head deforms；
Fig. 6 is that the preventing tissue of the present invention damages partial schematic diagram of endoscope's obturator when closed head deforms；
Fig. 7 is that the preventing tissue of the present invention damages the internal structural representation of endoscope's obturator insertion；And
Fig. 8 is that the preventing tissue of the present invention damages the internal partial schematic diagram of endoscope's obturator insertion.
Specific embodiment
Endoscope's obturator is damaged to preventing tissue involved in the present invention referring to the drawings to elaborate.
Fig. 1 is that the preventing tissue of the present invention damages dimensional structure diagram of endoscope's obturator in embodiment.
As shown in figure 1, preventing tissue damages endoscope's obturator 10 includes push rod 1 and closed head 2.
Fig. 2 is that the preventing tissue of the present invention damages structural representation of endoscope's obturator in embodiment.
Fig. 3 is that the preventing tissue of the present invention damages generalized section of endoscope's obturator in embodiment.
As shown in figure 3, the external diameter of 1 front end of push rod is slightly less than the internal diameter of epitheca 3.As shown in Figures 2 and 3, when push rod 1 is inserted
During epitheca 3,1 front end of push rod can just be coincide with epitheca 3.The diameter in 1 stage casing of push rod be less than front end so that push rod 1 insert or
When extracting epitheca 3, resistance is less.
Closed head 2 is connected to the front of push rod 1, and push rod 1 can drive closed head 2 to extract or insert from the epitheca 3 of endoscope
Enter so that closed head 2 can pass through epitheca 3, and just stretch out 3 front end of epitheca.
As shown in figure 1, the end of push rod 1 arranges inverted round stage 11, one is arranged on the inclined-plane of inverted round stage 11 and encloses cam 111.Such as
Shown in Fig. 3, the structure of 1 end of push rod is just coordinated with the internal cavities of 3 end of epitheca so that closed head 2 just stretches out epitheca 3
During front end, push rod 1 can be fixed on epitheca 3.Handle 12 is also set up behind inverted round stage 11, it is positioned at the outside of epitheca, convenient
User controls push rod.
The end of closed head 2 arranges surface and has externally threaded columnar projections 22, the front end setting of push rod 1 and raised 22 phase
Coordinate and surface has female groove, female thread is worked in coordination in the external screw thread and groove on raised 22.Envelope is caused so
Close 2 easily dismounting and a replacing from push rod 1.
2 surface of closed head is smooth, and tip is smooth round end, and stage casing is that the gradient is less round table-like, and such structure is favourable
Push ahead in histoorgan in closed head 2.
Fig. 4 is that the preventing tissue of the present invention damages section signal of endoscope's obturator when closed head occurs integrally bending
Figure.
As shown in figure 4, what closed head 2 was fabricated from a flexible material, flexible material is silica gel.When external force is received, closed head 2
Integrally bending can occur, to change with the shape of tissue or organ with the shape.
Fig. 5 is that the preventing tissue of the present invention damages structural representation of endoscope's obturator when closed head deforms.
Fig. 6 is that the preventing tissue of the present invention damages partial schematic diagram of endoscope's obturator when closed head deforms.Fig. 6
It is the enlarged drawing of dashed circle inner structure in Fig. 5.
As shown in Figure 5 and Figure 6, when closed head 2 meets peripheral, axial resistance F, it may occur that deformation is simultaneously extended in tip forward
A bit of flange 21, flange 21 are filled in around 3 front end of epitheca and form circular surface, have blocked the thickness rank of 3 end of epitheca
Ladder, so that the sharp edge of 3 end surface of epitheca is not exposed.
Using process：
When the histoorgan in observer's body is needed, first closed head 2 is screwed with push rod 1.Handle 12 be booked to
Preventing tissue is damaged endoscope's obturator 10 and is inserted in epitheca 3 by front propulsion, until closed head 2 just stretches out 3 front end of epitheca.Connect
, push rod 1 is by turn so that 1 end of push rod and 3 end of epitheca are locked together.
Fig. 7 is that the preventing tissue of the present invention damages the internal structural representation of endoscope's obturator insertion.
Fig. 8 is that the preventing tissue of the present invention damages the internal partial schematic diagram of endoscope's obturator insertion.Fig. 8 is void in Fig. 7
The enlarged drawing of line circle inner structure.
As shown in Figure 7 and Figure 8, closed head 2 is inserted into histoorgan together with push rod 1, and closed head 2 is run into from human body group
The resistance knitted, can follow the shape of tissue or organ and change with the shape, and can form round and smooth arc around 3 front end of epitheca
Face, so as to block the front end of epitheca 3.
After epitheca 3 reaches target location, turn push rod 1,1 end of push rod and 3 end of epitheca unclamp, and handle 12 is drawn
It is dynamic so that push rod 1 drives closed head 2 to exit epitheca 3, and epitheca 3 is left in vivo, waits subsequent operation.
Embodiment is acted on and effect
Preventing tissue according to involved by the present embodiment damages endoscope's obturator, as closed head is fabricated from a flexible material,
Therefore when preventing tissue damages endoscope's obturator insertion tissue, closed head meet peripheral, axial resistance can deform upon and
Round and smooth cambered surface is formed around epitheca front end, epitheca front end can be blocked so that epitheca surface will not expose sharp edge, from
And reduce the rate of injury of perienchyma.
In addition, because when preventing tissue damages endoscope obturator insertion tissue, closed head can be with tissue or organ
Shape and change with the shape, without with periphery tissue occur contradict, so flexible closure head be easy in tissue move ahead, make
Endoscope's epitheca can more smoothly support be inserted in target internal organs, and reduce further perienchyma damage occur
Rate.
Certainly, preventing tissue according to the present invention damages endoscope's obturator and is not merely defined in retouching in above example
State.Flexible material can also for silica gel, material modified silica gel, rubber, modified rubber material, polyurethane, polyurethane-modified material,
In thermoplastic elastomer (TPE) or thermoplastic elastomer modified material any one or at least two combination.
Claims (4)
1. a kind of preventing tissue damages endoscope's obturator, can extract or insert from the epitheca of endoscope, it is characterised in that include：
External diameter is slightly less than the push rod of the epitheca internal diameter, and
Be connected in front of the push rod can through and out the closed head of the epitheca front end,
Wherein, the closed head is fabricated from a flexible material, and the closed head is met peripheral, axial resistance and can be deformed upon and described
Round and smooth cambered surface is formed around epitheca front end, so as to block the edge of the epitheca front end.
2. preventing tissue according to claim 1 damages endoscope's obturator, it is characterised in that：
Wherein, when the preventing tissue damages endoscope's obturator insertion tissue, the closed head can be with tissue or organ
Shape and change with the shape.
3. preventing tissue according to claim 1 damages endoscope's obturator, it is characterised in that：
Wherein, the flexible material is silica gel, material modified silica gel, rubber, modified rubber material, polyurethane, polyurethane-modified
In material, thermoplastic elastomer (TPE) or thermoplastic elastomer modified material any one or at least two combination.
4. preventing tissue according to claim 1 damages endoscope's obturator, it is characterised in that：
Wherein, the front end that the end setting surface of the closed head has externally threaded columnar projections, the push rod is arranged and institute
State projection to be engaged and the female groove of surface tool, the external screw thread and the female thread are worked in coordination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410487688.0A CN105266748B (en) | 2014-09-23 | 2014-09-23 | Anti-tissue damage endoscope obturator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410487688.0A CN105266748B (en) | 2014-09-23 | 2014-09-23 | Anti-tissue damage endoscope obturator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105266748A CN105266748A (en) | 2016-01-27 |
| CN105266748B true CN105266748B (en) | 2017-04-12 |
Family
ID=55137206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410487688.0A Expired - Fee Related CN105266748B (en) | 2014-09-23 | 2014-09-23 | Anti-tissue damage endoscope obturator |
Country Status (1)
| Country | Link |
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| CN (1) | CN105266748B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105962882A (en) * | 2016-02-05 | 2016-09-28 | 桐庐昊达医疗器械有限公司 | Medical anus inspection device with light |
| AU2017233052A1 (en) * | 2016-03-17 | 2018-09-20 | Trice Medical, Inc. | Clot evacuation and visualization devices and methods of use |
| CN113712649B (en) * | 2021-10-29 | 2022-01-25 | 极限人工智能(北京)有限公司 | Hole closing device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1541161B2 (en) * | 1966-04-14 | 1975-06-26 | Hans Dr.Med. 8000 Muenchen Sachse | Surgical instrument |
| US3948415A (en) * | 1973-06-27 | 1976-04-06 | The Broken Hill Proprietary Co., Ltd. | Easy-opening closures |
| US4941473A (en) * | 1986-08-04 | 1990-07-17 | Radisensor Ab | Guide for mechanical guiding of a catheter in connection with cardio and vascular examination |
| US5720761A (en) * | 1993-11-16 | 1998-02-24 | Worldwide Optical Trocar Licensing Corp. | Visually directed trocar and method |
| CA2095814C (en) * | 1990-11-09 | 2002-09-17 | John E. Abele | Guidewire for crossing occlusions in blood vessels |
| CN201591540U (en) * | 2009-12-23 | 2010-09-29 | 孙颖浩 | Minimal invasive sheath |
| CN203763657U (en) * | 2014-03-26 | 2014-08-13 | 郭爱霞 | Vagina applicator |
| CN204072030U (en) * | 2014-09-23 | 2015-01-07 | 中国人民解放军第二军医大学 | Preventing tissue damage endoscope obturator |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9190089U1 (en) * | 1990-06-11 | 1993-02-11 | Schneider (Usa) Inc., Plymouth, Minn., Us | |
| US20060009797A1 (en) * | 2001-01-09 | 2006-01-12 | Armstrong David N | Anoscope |
| US20070288081A1 (en) * | 2006-05-18 | 2007-12-13 | Abbott Laboratories | Stent delivery system having a stent stopper |
| US9872952B2 (en) * | 2010-07-03 | 2018-01-23 | Deborah Solomon | Soft dual-layer rectal speculum |
-
2014
- 2014-09-23 CN CN201410487688.0A patent/CN105266748B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1541161B2 (en) * | 1966-04-14 | 1975-06-26 | Hans Dr.Med. 8000 Muenchen Sachse | Surgical instrument |
| US3948415A (en) * | 1973-06-27 | 1976-04-06 | The Broken Hill Proprietary Co., Ltd. | Easy-opening closures |
| US4941473A (en) * | 1986-08-04 | 1990-07-17 | Radisensor Ab | Guide for mechanical guiding of a catheter in connection with cardio and vascular examination |
| CA2095814C (en) * | 1990-11-09 | 2002-09-17 | John E. Abele | Guidewire for crossing occlusions in blood vessels |
| US5720761A (en) * | 1993-11-16 | 1998-02-24 | Worldwide Optical Trocar Licensing Corp. | Visually directed trocar and method |
| CN201591540U (en) * | 2009-12-23 | 2010-09-29 | 孙颖浩 | Minimal invasive sheath |
| CN203763657U (en) * | 2014-03-26 | 2014-08-13 | 郭爱霞 | Vagina applicator |
| CN204072030U (en) * | 2014-09-23 | 2015-01-07 | 中国人民解放军第二军医大学 | Preventing tissue damage endoscope obturator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105266748A (en) | 2016-01-27 |
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