CN104368080A - Medical operation sheath and use method thereof - Google Patents
Medical operation sheath and use method thereof Download PDFInfo
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- CN104368080A CN104368080A CN201410627770.9A CN201410627770A CN104368080A CN 104368080 A CN104368080 A CN 104368080A CN 201410627770 A CN201410627770 A CN 201410627770A CN 104368080 A CN104368080 A CN 104368080A
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- sheath
- locking capsule
- expansion locking
- wall
- medical operation
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Abstract
The invention discloses a medical operation sheath, and belongs to the field of medical instruments. The medical operation sheath is used for solving the problem that in an existing method, pain and injury are caused easily in the tube placing or drawing process. The medical operation sheath comprises a sheath wall and an elastic expansion tube, wherein the sheath wall is made of a hard material and can be curled into a cylindrical sheath body, and the elastic expansion tube can be placed into the cylindrical sheath body. The outer side wall of one end of the sheath wall is provided with expansion locking bags which are longitudinally distributed. First valves are arranged at the tail ends of the expansion locking bags, and a second valve is arranged at the tail end of the expansion tube. The invention further discloses a use method of the medical operation sheath. Based on the characteristic that the medical operation sheath can expand and retract internally, pain and injury easily caused in the tube placing or drawing process are reduced, and the safety and simplicity of the medical operation sheath are improved.
Description
Technical field
The invention belongs to medical instruments field, relate to medical body cavity pipeline inserter, more particularly, is a kind of medical operation sheath and using method thereof.
Background technology
Endoscopic technic is widely used clinically, has damaging little, the advantages such as post-operative recovery is fast.And before operation, often need set up enough large passage in advance by a kind of sheath that operates, then enter in body operate by operating the tract of sheath inside.
At present, the method for conventional Path Setup is outer expanding, and namely first insert a thin seal wire as guidance, then insert the fixing sheath pipe of pipe diameter size along this root seal wire, then exit seal wire, passage has built.The method has the following disadvantages: one, and because sheath pipe surrounds outside seal wire, when placing sheath pipe along seal wire, sheath tube wall and tissue direct friction, easily cause tissue injury; Its two, sheath pipe diameter is comparatively large, and significantly expand body cavities and tissue by force, the misery caused to patient is very large.
Patent documentation CN 103393387 A (applying date: 2013.08.09) discloses a kind of medical instrument sheath, use for coordinating endoscope, comprise sheath pipe and be set in the inner core among described sheath pipe, described sheath pipe one end is provided with air bag, it is peripheral that described air bag is wrapped in described sheath tube end, described sheath pipe has inflating catheter and bayonet socket, and described inflating catheter connects the described air bag of described sheath tube end, and described bayonet socket is locked with described endoscope and coordinated.
By being designed with air bag at sheath tube end, air bag parcel sheath tube end, expands operative space by the expansion of air bag, when coordinating described endoscope to use, can protect described endoscope, for observation and operation provide the better visual field and space.
Patent documentation CN 103393388 A (applying date: 2013.08.09) discloses a kind of endoscope apparatus sheath, and it changes aforementioned endoscope apparatus sheath into three air bag forms by monosaccate.
Injected gas or liquid is adopted to enter described air bag in above-mentioned two sections of patent documentations, utilize the expansion of air bag to expand operative space, its weak point is, the pipe diameter size of operation sheath can not change, operation sheath is utilized to set up enough large passage, just must ensure that the caliber operating sheath is enough large, but the caliber of operation sheath is larger, puts misery that pipe or tube drawing cause and damage more serious.
Summary of the invention
The present invention seeks to have aimed to provide a kind of reduction and put the medical operation sheath that pipe or tube drawing cause suffering and damage.
For realizing above-mentioned technical purpose, the technical solution used in the present invention is as follows:
A kind of medical operation sheath, comprise the sheath wall that can be curled into tubular sheath body be made up of hard material, and the elastic dilatation pipe can inserted in described tubular sheath body, the lateral wall of described sheath wall one end is provided with the expansion locking capsule of at least one genesis analysis, this expansion locking capsule end is provided with the first valve, and described convergent divergent channel end is provided with the second valve.
Whole operating process expands sheath body caliber by the form of intramedullary expansion, avoid and directly the sheath body of Large Diameter Pipeline is directly placed in body cavity, damaging surrounding tissue, sufferer misery is alleviated by expanding body cavities continuously slowly and organizing after sheath body is placed in body cavity, in addition, structure, the resistance reducing tube drawing and the misery caused that after this operation sheath utilizes Exhaust Gas or liquid, sheath body self bounces back.
Further restriction, described expansion locking capsule has two.
When avoiding operation, single lumen catheter breaks the generation of fortuitous event, but expansion locking capsule is not limited to two, also can be three.
Further restriction, the position that described expansion locking capsule contacts with the lateral wall of sheath wall curves inwardly formation draw-in groove.
When sheath wall external end contact expansion locking capsule, the large expansion locking capsule of change that expands utilizes aduncate draw-in groove better can block sheath wall external end, and avoid sheath body to bounce back, caliber diminishes.
Further restriction, described expansion locking capsule is longitudinally formed by the expansion locking capsule unit of multiple connection.
Further restriction, described sheath wall is made up of medical polyurethane.
Another object of the present invention is to provide the using method of this medical operation sheath.
For realizing above-mentioned technical purpose, the technical solution used in the present invention is as follows:
Step one: sheath body sheath wall overlap being curled into tubular, forms caliber, guarantees that sheath wall external end exceedes expansion locking capsule;
Step 2: sheath body is inserted body cavity, and convergent divergent channel is placed in sheath body caliber, then the second valve is passed through to injecting gas in convergent divergent channel or liquid, when sheath wall external end return to do not exceed expansion locking capsule position time, again by the first valve injecting gas or liquid, expansion locking capsule is expanded and becomes large;
Step 3: open the second valve, slowly discharges the gas in convergent divergent channel or liquid, and sheath wall external end, gradually near expansion locking capsule, when sheath wall external end is butted on expansion locking capsule mutually, exits convergent divergent channel, builds operation path;
Step 4: after operation completes, opens the first valve, discharges gas or the liquid of expansion locking capsule, extracts sheath body.
Compared to existing technology, sheath body can be utilized to expand pipe diameter size that retractable feature changes sheath body, solves the problem of the risk of misery that the mid-pipe of existing method or tube drawing easily cause and damage, improves the application of operation sheath in the present invention.
Accompanying drawing explanation
The nonlimiting examples that invention can be provided by accompanying drawing further illustrates:
Fig. 1 is a kind of medical operation sheath (non-rolled state) structural representation (embodiment one) of the present invention;
Fig. 2 is a kind of medical operation sheath (rolled state) structural representation (embodiment one) of the present invention;
Fig. 3 is a kind of medical operation sheath (rolled state) front view (embodiment one) of the present invention;
Fig. 4 is a kind of medical operation sheath structural representation (embodiment two) of the present invention;
Fig. 5 is a kind of medical operation sheath structural representation (embodiment three) of the present invention;
Fig. 6 is a kind of medical operation sheath structural representation (embodiment four) of the present invention;
Main element symbol description is as follows:
Sheath wall 1, convergent divergent channel 2, the second valve 201, expansion locking capsule 3, expansion locking capsule unit 3a, the first valve 301, draw-in groove 302.
Detailed description of the invention
In order to make those skilled in the art, the present invention may be better understood, further illustrates technical solution of the present invention below in conjunction with drawings and Examples.
Embodiment one
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of medical operation sheath, comprise the sheath wall 1 that can be curled into tubular sheath body, and the elastic dilatation pipe 2 can inserted in tubular sheath body, the lateral wall of sheath wall 1 one end is provided with the expansion locking capsule 3 of a genesis analysis, this expansion locking capsule 3 end is provided with the first valve 301, and convergent divergent channel 2 end is provided with the second valve 201.
Sheath wall 1 is by hard elastic material, and such as medical polyurethane makes, and is in retracted state, after expansionary force effect, is expanded under quiescent condition; Convergent divergent channel 2 is made by gum elastic, filling gas in convergent divergent channel 2, the caliber expansion of convergent divergent channel 2; Discharge gas in convergent divergent channel 2, convergent divergent channel 2 reduces.
Embodiment two
As shown in Figure 4, a kind of medical operation sheath, comprise the sheath wall 1 that can be curled into tubular sheath body, and the elastic dilatation pipe 2 can inserted in tubular sheath body, the lateral wall of sheath wall 1 one end is provided with the expansion locking capsule 3 of two genesis analysis, this each expansion locking capsule 3 end is provided with the first valve 301, and convergent divergent channel 2 end is provided with the second valve 201.
Sheath wall 1 is by hard elastic material, and such as medical polyurethane makes, and is in retracted state, after expansionary force effect, is expanded under quiescent condition; Convergent divergent channel 2 is made by gum elastic, filling gas in convergent divergent channel 2, the caliber expansion of convergent divergent channel 2; Discharge gas in convergent divergent channel 2, convergent divergent channel 2 reduces.
Embodiment three
As shown in Figure 5, a kind of medical operation sheath, comprise the sheath wall 1 that can be curled into tubular sheath body, and the elastic dilatation pipe 2 can inserted in tubular sheath body, the lateral wall of sheath wall 1 one end is provided with the expansion locking capsule 3 of genesis analysis, the position that expansion locking capsule 3 contacts with the lateral wall of sheath wall 1 curves inwardly and forms draw-in groove 302, and this expansion locking capsule 3 end is provided with the first valve 301, and convergent divergent channel 2 end is provided with the second valve 201.
Sheath wall 1 is by hard elastic material, and such as medical polyurethane makes, and is in retracted state, after expansionary force effect, is expanded under quiescent condition; Convergent divergent channel 2 is made by gum elastic, filling gas in convergent divergent channel 2, the caliber expansion of convergent divergent channel 2; Discharge gas in convergent divergent channel 2, convergent divergent channel 2 reduces.
Embodiment four
As shown in Figure 6, a kind of medical operation sheath, comprise the sheath wall 1 that can be curled into tubular sheath body, and the elastic dilatation pipe 2 can inserted in tubular sheath body, the lateral wall of sheath wall 1 one end is provided with the expansion locking capsule 3 of genesis analysis, expansion locking capsule 3 is longitudinally formed by four expansion locking capsule unit 3a be communicated with, and this expansion locking capsule 3 end is provided with the first valve 301, and convergent divergent channel 2 end is provided with the second valve 201.
Sheath wall 1 is by hard elastic material, and such as medical polyurethane makes, and is in retracted state, after expansionary force effect, is expanded under quiescent condition; Convergent divergent channel 2 is made by gum elastic, filling gas in convergent divergent channel 2, the caliber expansion of convergent divergent channel 2; Discharge gas in convergent divergent channel 2, convergent divergent channel 2 reduces.
Above-mentioned four kinds of embodiments difference is, relative embodiment one, and the expansion locking capsule 3 of embodiment two has two; Relative embodiment one, the position that the expansion locking capsule 3 of embodiment three contacts with the lateral wall of sheath wall 1 curves inwardly and forms draw-in groove 302; Relative embodiment one, the expansion locking capsule 3 of embodiment four is longitudinally formed by four expansion locking capsule unit 3a be communicated with.
It should be noted that, adopt injection liquid also can realize above-mentioned technique effect.No matter be blanketing gas or injection liquid, all must adopt the harmless medical gas of human non-toxic or liquid.
A kind of concrete using method of medical operation sheath is as follows:
(1) first sheath wall 1 overlap is curled into the sheath body of tubular, forms caliber, time curling, guarantee that sheath wall 1 external end exceedes expansion locking capsule unit 3a;
(2) then sheath body is inserted body cavity, and convergent divergent channel 2 is placed in sheath body caliber, then the second valve 201 is passed through to injecting gas in convergent divergent channel 2, when sheath wall 1 external end return to do not exceed expansion locking capsule unit 3a position time, again by the first valve 301 injecting gas, expansion locking capsule unit 3a is expanded and becomes large;
(3) the second valve 201 is then opened, gas in slow discharge convergent divergent channel 2, sheath wall 1 external end is gradually near expansion locking capsule unit 3a, when sheath wall 1 external end is butted on expansion locking capsule unit 3a mutually, the large expansion locking capsule unit 3a of change that expands utilizes aduncate draw-in groove 302 to block sheath wall 1 external end, stop sheath body retraction, maintain caliber, exit convergent divergent channel 2, like this, set up enough large operation path by a kind of sequence of maneuvers of medical operation sheath, make endoscopic technic more convenient clinically;
(4) after operation completes, open the first valve 301, discharge the gas of expansion locking capsule unit 3a, caliber automatic retracted, diameter reduces, and extracts sheath body, reduces tube drawing resistance.
The present invention can be used for building operation path in multiple body cavities, such as cystoscope, peritoneoscope, cavity mirror, because the major part of organizing of these body cavities is that soft tissue is formed, therefore the effect of expansion body cavities and tissue can be produced, after sheath body enters body cavities, convergent divergent channel is expanded by filling gas, drive sheath body expansion body cavities and tissue, this slowly rear expansion pattern effectively reduces misery, avoid the problem significantly expanding body cavities and tissue by force on the one hand, avoid sheath body and tissue direct friction on the other hand, cause the problem of tissue injury.
Above the medical operation sheath of one provided by the invention and using method thereof are described in detail.The explanation of specific embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, the diameter such as operating the sheath wall of sheath is tapered.These improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (6)
1. a medical operation sheath, it is characterized in that: comprise the sheath wall that can be curled into tubular sheath body be made up of hard material, and the elastic dilatation pipe can inserted in described tubular sheath body, the lateral wall of described sheath wall one end is provided with the expansion locking capsule of at least one genesis analysis, this expansion locking capsule end is provided with the first valve, and described convergent divergent channel end is provided with the second valve.
2. the medical operation sheath of one according to claim 1, is characterized in that: described expansion locking capsule has two.
3. the medical operation sheath of one according to claim 1 and 2, is characterized in that: the position that described expansion locking capsule contacts with the lateral wall of sheath wall curves inwardly formation draw-in groove.
4. the medical operation sheath of one according to claim 3, is characterized in that: described expansion locking capsule is longitudinally formed by the expansion locking capsule unit of multiple connection.
5. the medical operation sheath of one according to claim 3, is characterized in that: described sheath wall is made up of medical polyurethane.
6. the using method of a kind of medical operation sheath according to claim 5, is characterized in that:
Step one: sheath body sheath wall overlap being curled into tubular, forms caliber, guarantees that sheath wall external end exceedes expansion locking capsule;
Step 2: sheath body is inserted body cavity, and convergent divergent channel is placed in sheath body caliber, then the second valve is passed through to injecting gas in convergent divergent channel or liquid, when sheath wall external end return to do not exceed expansion locking capsule position time, again by the first valve injecting gas or liquid, expansion locking capsule is expanded and becomes large;
Step 3: open the second valve, slowly discharges the gas in convergent divergent channel or liquid, and sheath wall external end, gradually near expansion locking capsule, when sheath wall external end is butted on expansion locking capsule mutually, exits convergent divergent channel, builds operation path;
Step 4: after operation completes, opens the first valve, discharges gas or the liquid of expansion locking capsule, extracts sheath body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410627770.9A CN104368080B (en) | 2014-11-10 | 2014-11-10 | Medical operation sheath |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410627770.9A CN104368080B (en) | 2014-11-10 | 2014-11-10 | Medical operation sheath |
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| CN104368080A true CN104368080A (en) | 2015-02-25 |
| CN104368080B CN104368080B (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410627770.9A Expired - Fee Related CN104368080B (en) | 2014-11-10 | 2014-11-10 | Medical operation sheath |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104970839A (en) * | 2015-07-02 | 2015-10-14 | 武汉市第一医院 | Neuroendoscopic operation working channel and method for manufacturing the same |
| CN105796137A (en) * | 2016-03-17 | 2016-07-27 | 中国人民解放军第三军医大学第二附属医院 | Medical operation channel stent |
| CN105832424A (en) * | 2016-03-17 | 2016-08-10 | 中国人民解放军第三军医大学第二附属医院 | Medical expanding protective cover and using method thereof |
| CN107007333A (en) * | 2017-05-02 | 2017-08-04 | 韦宁 | The adjustable nerve endoscope passage of one kind visualization |
| CN107928718A (en) * | 2017-12-11 | 2018-04-20 | 陈永忠 | Medical operation sheath |
| WO2022000740A1 (en) * | 2020-06-28 | 2022-01-06 | 微氪医疗器械南通有限公司 | Simple minimally invasive surgery specimen extraction apparatus and usage method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2275421A (en) * | 1993-02-25 | 1994-08-31 | Christopher Tiley | Speculum |
| JPH08103501A (en) * | 1994-10-03 | 1996-04-23 | Unitika Ltd | Living body tube cavity expansioner |
| US20040049223A1 (en) * | 1997-10-01 | 2004-03-11 | Scimed Life Systems, Inc. | Dilation systems and related methods |
| CN103494598A (en) * | 2013-10-21 | 2014-01-08 | 武汉大学 | Disposable inflatable vaginal speculum |
| CN204246666U (en) * | 2014-11-10 | 2015-04-08 | 中国人民解放军第三军医大学第二附属医院 | A kind of medical operation sheath |
-
2014
- 2014-11-10 CN CN201410627770.9A patent/CN104368080B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2275421A (en) * | 1993-02-25 | 1994-08-31 | Christopher Tiley | Speculum |
| JPH08103501A (en) * | 1994-10-03 | 1996-04-23 | Unitika Ltd | Living body tube cavity expansioner |
| US20040049223A1 (en) * | 1997-10-01 | 2004-03-11 | Scimed Life Systems, Inc. | Dilation systems and related methods |
| CN103494598A (en) * | 2013-10-21 | 2014-01-08 | 武汉大学 | Disposable inflatable vaginal speculum |
| CN204246666U (en) * | 2014-11-10 | 2015-04-08 | 中国人民解放军第三军医大学第二附属医院 | A kind of medical operation sheath |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104970839A (en) * | 2015-07-02 | 2015-10-14 | 武汉市第一医院 | Neuroendoscopic operation working channel and method for manufacturing the same |
| CN105796137A (en) * | 2016-03-17 | 2016-07-27 | 中国人民解放军第三军医大学第二附属医院 | Medical operation channel stent |
| CN105832424A (en) * | 2016-03-17 | 2016-08-10 | 中国人民解放军第三军医大学第二附属医院 | Medical expanding protective cover and using method thereof |
| CN105832424B (en) * | 2016-03-17 | 2018-11-20 | 中国人民解放军第三军医大学第二附属医院 | The medical expansion protective case of one kind and its application method |
| CN107007333A (en) * | 2017-05-02 | 2017-08-04 | 韦宁 | The adjustable nerve endoscope passage of one kind visualization |
| CN107928718A (en) * | 2017-12-11 | 2018-04-20 | 陈永忠 | Medical operation sheath |
| WO2022000740A1 (en) * | 2020-06-28 | 2022-01-06 | 微氪医疗器械南通有限公司 | Simple minimally invasive surgery specimen extraction apparatus and usage method |
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|---|---|
| CN104368080B (en) | 2017-05-03 |
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