CN208096788U - A kind of guide sheath - Google Patents
A kind of guide sheath Download PDFInfo
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- CN208096788U CN208096788U CN201821594257.4U CN201821594257U CN208096788U CN 208096788 U CN208096788 U CN 208096788U CN 201821594257 U CN201821594257 U CN 201821594257U CN 208096788 U CN208096788 U CN 208096788U
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- guide sheath
- conduit
- sheath
- expander
- guide
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Abstract
The utility model discloses a kind of guide sheaths, including expander conduit and guiding sheath, it guides sheath and is equipped with hollow lumen and front opening, the inner cavity of expander conduit self-aiming sheath passes through and is pierced by from its front opening, expander rear end of conduit is equipped with expander conduit hand button, guiding sheath rear end is equipped with guide sheath connector and is connected to the nipple of guide sheath connector rear end, elastic washer is arranged inside nipple, elastic washer is equipped with the through-hole passed through for instruments such as expander conduit and endoscopes, and nipple and expander conduit hand button are cooperatively connected.The guide sheath connector rear end of the guide sheath of the utility model is equipped with nipple, elastic washer is arranged inside nipple, the elastic washer is equipped with the through-hole passed through for instruments such as expander conduit and endoscopes, when tightening nipple, deformation occurs for elastic washer, so as to be suitable for the device expansions device conduit such as endoscope of various different tube diameters, to have very high practical value.
Description
Technical field
The utility model relates to medical instruments fields, more particularly to a kind of guide sheath.
Background technique
Ureteroscope stone-extraction operation is per urethram to enter ureteroscope in ureter through bladder, followed by set stone mesh basket or
Lithotomy forceps takes out calculus, or is set under ureteroscope with rubbles such as pneumatic ballistic lithotriptor, laser lithotripsy machine, ultrasonic trajectories
It is standby, lower accurate rubble is pried through in ureteroscope guidance, is further taken out after calculus is smashed.
When taking stone to perform the operation using ureteroscope, ureteroscope must be used cooperatively with guide sheath.Guide sheath is in ureter
In mirror stone-extraction operation, be first advanced into patient's body, X-ray development under be passed directly into lesions position attachment, be subsequent endoscope into
Enter and provides great convenience.In addition, the channel that guiding sheath can be used as rubble outflow is directly arranged after completing that stone is taken to perform the operation
Out outside human body, the pain of patient is considerably reduced, decreases the generation of complication.
Existing guide sheath can only be adapted to the defeated of specific caliber by the changeless limitation of guide sheath receiving hole head internal diameter
A kind of attraction sheath guide sheath that urinary catheter mirror is related to by, for example, the Chinese patent document application No. is 201520146278.X, packet
Expander conduit, guiding pipe fitting, expander connector and guiding sheath are included, guiding sheath therein is by high molecular material elastomer
Three layers of outer layer, metal material spiral coil middle layer and lubricity high molecular material internal layer compound composition；It is characterized in that：Described
Guiding sheath is made of integrated rear portion guide sheath and front guide sheath；Metal material spiral in the rear portion guide sheath
Circle is coated between high polymer elastic volume surrounding and lubricity high molecular material internal layer in the tubular body of close ordered arrangement, and is wrapped
The metal material spiral coil overlayed in the guide sheath of front is then in that the tubular body of sparse shape ordered arrangement is coated on macromolecular elastomer
Between outer layer and lubricity high molecular material internal layer, thus constituting front end with certain flexibility, rear end has certain rigidity
Guide sheath.
Guide sheath disclosed in above-mentioned patent document, which accommodates hole connector, can not have versatility, considerably reduce applicable
Occasion.Therefore, it is necessary to design a kind of guide sheath of ureteroscope for being applicable to different tube diameters.
Summary of the invention
The utility model discloses a kind of guide sheaths, including expander conduit and guiding sheath, guiding sheath to be equipped with hollow
The inner cavity of inner cavity and front opening, expander conduit self-aiming sheath passes through and is pierced by from its front opening, after expander conduit
End is equipped with expander conduit hand button, and guiding sheath rear end is equipped with guide sheath connector and connects with the screw thread for being connected to guide sheath connector rear end
Head, elastic washer is arranged inside nipple, and elastic washer is equipped with the through-hole passed through for expander conduit, nipple and expansion
Device conduit hand button is cooperatively connected.
Preferably, guide sheath connector side is equipped with the water-filling nozzle of tubulose, is equipped in the middle part of water-filling nozzle and is used to form negative pressure in pipe
Negative pressure it is hand-made.
Further, water-filling nozzle side is equipped with the hand-made groove of installation negative pressure, is equipped with strip through-hole in groove to be connected to
Inside and outside water-filling nozzle lumen, the hand-made convex block for having the nut cap for adapting to groove and being caught in strip through-hole of negative pressure, convex block is caught in logical
Kong Shike along strip through-hole axial movement.
Preferably, it is equipped with buckle at the top of convex block and convex block is caught in strip through-hole.
Further, anti-skid structure is equipped on the outside of nut cap.
Preferably, nipple is connected to guide sheath connector rear end in such a way that spiral is tightened.
Further, guide sheath connector is adhered to the rear end of guiding sheath.
Preferably, expander conduit hand button is adhered to the rear end of expander conduit.
Further, nipple is fixedly connected with expander conduit hand button by snap-in structure.
Preferably, there is hydrophilic coating on the surface of expander conduit and guiding sheath.
Further, the surface of expander conduit and/or guiding sheath is with the property guided scale.
Preferably, expander conduit and/or guiding sheath are two chambers or multi-cavity structure, and multi-cavity structure is logical for seal wire to be arranged
Road and instrument channel.
In conclusion the utility model relates to guide sheath guide sheath connector rear end be equipped with nipple, connect in screw thread
Head is internal to be arranged elastic washer, which is equipped with the through-hole passed through for expander conduit, logical by this in expander conduit
Hole and when tightening nipple, nipple and expander conduit mutual extrusion make elastic washer deformation occurs, so as to
So that the utility model is applicable to the expander conduit of various different tube diameters, has versatility, to have very high reality
With value.
For the above content of the utility model can be clearer and more comprehensible, preferred embodiment is cited below particularly, and in conjunction with attached drawing, make
Detailed description are as follows.
Detailed description of the invention
The utility model is introduced below in conjunction with attached drawing.
Fig. 1 is the overall structure diagram of guide sheath disclosed in the utility model embodiment；
Fig. 2 is the structural exploded view of guide sheath disclosed in the utility model embodiment；
Fig. 3 is the structural schematic diagram of elastic washer disclosed in the utility model embodiment；
Fig. 4 is the structural schematic diagram of guide sheath connector disclosed in the utility model embodiment；
Fig. 5 is the hand-made structural schematic diagram of negative pressure disclosed in the utility model embodiment.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this theory
The bright revealed content of book understands other advantages and effect of the utility model easily.
The illustrative embodiments of the utility model are introduced referring now to the drawings, however, the utility model can use many
Different forms is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be in order at large and complete
Open the utility model entirely, and the scope of the utility model is sufficiently conveyed to person of ordinary skill in the field.For
The term in illustrative embodiments being illustrated in the accompanying drawings not is the restriction to the utility model.In the accompanying drawings, identical
Cells/elements use identical appended drawing reference.
Unless otherwise indicated, term used herein（Including scientific and technical terminology）Have to person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.
As shown in Figure 1-Figure 3, the utility model embodiment discloses a kind of guide sheath 100, including expander conduit 1 and leads
Draw sheath 2, guiding sheath 2 is equipped with hollow lumen and front opening, and the inner cavity of 1 self-aiming sheath 2 of expander conduit passes through simultaneously certainly
Its front opening is pierced by, and 1 rear end of expander conduit is equipped with expander conduit hand button 11, and guiding 2 rear end of sheath connects equipped with guide sheath
First 21 and it is connected to the nipple 22 of guide sheath connector rear end, is arranged elastic washer 23 inside nipple 22（Fig. 2 acceptance of the bid
Out）, elastic washer 23 is equipped with the through-hole 230 passed through for expander conduit 1（It is marked in Fig. 3）, nipple 22 leads with expander
Pipe hand button 11 is cooperatively connected.
Specifically, the present embodiment provides a kind of guide sheaths, when needing to carry out the operation of kidney stone rubble to patient, first with
Urethra, bladder, ureter of the guide sheath through patient, which are inserted in renal plevis, establishes a channel, then recycles the channel established to trouble
Person carries out successive treatment.The front end of expander conduit 1 is set as taper, facilitates insertion into guiding sheath 2 to patient part, expander
The front-end and back-end of conduit 1 are pierced by guiding sheath 2.The rear end for guiding sheath 2 connects guide sheath connector 21, guide sheath connector 21
Rear end connection screw thread connector 22, internal screw thread is equipped with inside nipple 22, is equipped with external screw thread outside 21 rear end of guide sheath connector,
Nipple 22 is tightened to the rear end of guide sheath connector 21 by internal screw thread and the intermeshing mode spiral of external screw thread.It is special
Not, as shown in Fig. 2, being arranged elastic washer 23 in the pipe of nipple 22, when nipple 22 is tightened, elastic washer 23
Elastic deformation can occur therewith, the aperture of the through-hole 230 of elastic washer 23 becomes smaller, so as to adapt to the expansion of different tube diameters
Device conduit 1 passes through.
Preferably, it guides and is provided with scale on the outer tube wall of sheath 2, convenient for users to clearly protruding into the depth of patient's body
Degree.
When being inserted into guide sheath, guiding sheath 2 is inserted into ureter under the guidance of expander conduit 1 together.In order to prevent
Guide sheath 2 and the separation of expander conduit 1 in insertion process and facilitate one-handed performance, guide sheath 2 and expander conduit 1 it
Between need to be attached, in the present embodiment, due to 1 rear end of expander conduit connect expander conduit hand button 11, guide sheath 2 after
End, which is linked in sequence, guide sheath connector 21 and nipple 22, and card is arranged between expander conduit hand button 11 and nipple 22
It closes structure to be interconnected and fixed the two, to guarantee in guide sheath insertion process, guides sheath 2 and expander conduit 1 not
Separation.Snap-in structure can there are many designs, such as buckle, it will be understood by those skilled in the art that snap-in structure not only limits
The content enumerated in the present embodiment text and attached drawing.
Further, the water-filling nozzle 210 of tubulose is equipped in the side of guide sheath connector 21, the middle part of water-filling nozzle 210 is equipped with
It is used to form the negative pressure hand-made 211 of negative pressure in pipe.The channels such as the urethra due to patient are soft tissue channel, inside pipeline
The camera of endoscope may be blocked, influence the visual field, therefore, when using endoscope, needed to inject to patient's body and give birth to
Salt water is managed, the obstacle before camera is washed open, to obtain the clearly visual field.The negative pressure hand-made 211 is convenient in water-filling nozzle 210
Pipe in form closed subnormal ambient, without pinning negative pressure mouth always when being absorbed water by water-filling nozzle, can be convenient medical care
Personnel operate.
Specifically, as shown in Figure 2 and Figure 4, groove 210a processed is opened in the side of water-filling nozzle 210, is equipped in the middle part of groove 210a
Strip through-hole 210b will be connected inside and outside the lumen of water-filling nozzle 210, and negative pressure hand-made 211 is the strip for adapting to groove 210a
Nut cap 211a, one side face has and can be caught in the convex block 211b of strip through-hole 210b, when convex block 211b is caught in strip
When through-hole 210b, convex block 211b can move back and forth along the axial direction of strip through-hole 210b.In this way, medical staff can first will be convex
Block 211b pushes to form closed environment close to the direction of guiding sheath 2, pushes convex block 211b to far from guiding sheath 2 later
Direction sliding, to form negative pressure inside the lumen of water-filling nozzle 210, facilitates and absorbs water.
Further, buckle 211c being equipped at the top of convex block 211b, convex block 211b is caught in strip through-hole 210b,
It falls off to avoid convex block 211b from strip through-hole 210b.In this way, medical staff mentions without pinning negative pressure mouth always when operation
The high convenient degree of surgical procedure.
Further, anti-skid structure is additionally provided on the outside of nut cap 211a.As shown in figure 5, anti-skid structure can be for simultaneously
The a plurality of protrusion of row arrangement, or multiple salient points can also can be thought for those skilled in the art without creative work
The other structures arrived.Anti-skid structure pushes convex block 211b to move back along the axial direction of strip through-hole 210b convenient for medical staff
It is dynamic.
In the present embodiment, guide sheath connector 21 and expander conduit hand button 11 are bonded in guiding sheath 2 and expander respectively
The rear end of conduit 1 can also take other fixed forms to be attached.
In practical applications, the surface of expander conduit 1 and guiding sheath 2 can be equipped with hydrophilic coating, to play waterproof
Effect.
It is further preferable that as shown in Figure 1, the surface of expander conduit 1 and/or guiding sheath 2 can also be with the property guided
Scale improves the convenience of surgical procedure convenient for intuitively showing the depth of insertion.
Preferably, silk guide passage and instrument channel can be set in the inside of expander conduit 1 and/or guiding sheath 2, leads
Silk can enter silk guide passage from the import of silk guide passage after from passing through and stretched out from guide wire exit openings, instrument channel in silk guide passage
It is inserted into for instruments such as endoscopes to be operated.
In addition, the above embodiments are only illustrative of the principle and efficacy of the utility model for the utility model, Er Feiyong
In limitation the utility model.Anyone skilled in the art all can be under the spirit and scope without prejudice to the utility model, to upper
It states embodiment and carries out modifications and changes.Therefore, those skilled in the art are without departing from the revealed spirit of the utility model and skill
All equivalent modifications completed under art thought or change should be covered by the claim of the utility model.
Claims (12)
1. a kind of guide sheath, including expander conduit and guiding sheath, the guiding sheath are equipped with hollow lumen and front opening,
The inner cavity of the expander conduit from the guiding sheath passes through and is pierced by from its front opening, which is characterized in that the expansion
Device rear end of conduit is equipped with expander conduit hand button, and the guiding sheath rear end is equipped with guide sheath connector and is connected to the guide sheath
The nipple of connector rear end is arranged elastic washer inside the nipple, and the elastic washer, which is equipped with, supplies the expander
The through-hole that conduit passes through, the nipple and the expander conduit hand button are cooperatively connected.
2. guide sheath according to claim 1, which is characterized in that guide sheath connector side is equipped with the water filling of tubulose
Mouth, the water-filling nozzle middle part are hand-made equipped with the negative pressure for being used to form negative pressure in pipe.
3. guide sheath according to claim 2, which is characterized in that it is hand-made that the water-filling nozzle side is equipped with the installation negative pressure
Groove, strip through-hole is equipped in the groove to be connected to inside and outside the water-filling nozzle lumen, the negative pressure is hand-made to be had and adapt to
The nut cap of the groove and the convex block for being caught in the strip through-hole, along the strip when convex block is caught in the through-hole
The axial movement of through-hole.
4. guide sheath according to claim 3, which is characterized in that be equipped with buckle at the top of the convex block for the convex block card
Enter the strip through-hole.
5. guide sheath according to claim 3, which is characterized in that be equipped with anti-skid structure on the outside of the nut cap.
6. guide sheath according to claim 1, which is characterized in that the nipple is connected in such a way that spiral is tightened
Guide sheath connector rear end.
7. guide sheath according to claim 1, which is characterized in that the guide sheath connector is adhered to the guiding sheath
Rear end.
8. guide sheath according to claim 1, which is characterized in that the expander conduit hand button is adhered to the expander
The rear end of conduit.
9. guide sheath according to claim 1, which is characterized in that the nipple and the expander conduit hand button are logical
Snap-in structure is crossed to be fixedly connected.
10. guide sheath according to claim 1, which is characterized in that the surface of the expander conduit and guiding sheath has
Hydrophilic coating.
11. guide sheath according to claim 1, which is characterized in that the surface band of the expander conduit and guiding sheath
There is guide property scale.
12. any guide sheath in -11 according to claim 1, which is characterized in that the expander conduit and/or guiding
Sheath is two chambers or multi-cavity structure, and multi-cavity structure is for being arranged silk guide passage and instrument channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821594257.4U CN208096788U (en) | 2018-09-29 | 2018-09-29 | A kind of guide sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821594257.4U CN208096788U (en) | 2018-09-29 | 2018-09-29 | A kind of guide sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208096788U true CN208096788U (en) | 2018-11-16 |
Family
ID=64125644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821594257.4U Active CN208096788U (en) | 2018-09-29 | 2018-09-29 | A kind of guide sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208096788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023116073A1 (en) * | 2021-12-24 | 2023-06-29 | 浙江医高医疗科技有限公司 | Improved ureteral sheath |
-
2018
- 2018-09-29 CN CN201821594257.4U patent/CN208096788U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023116073A1 (en) * | 2021-12-24 | 2023-06-29 | 浙江医高医疗科技有限公司 | Improved ureteral sheath |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201210 east of 1st and 2nd floors, building 7, No. 150 Cailun Road, Pudong New Area, Shanghai Patentee after: Shanghai innova Medical Instrument Co.,Ltd. Address before: 201210 east of 1st and 2nd floors, building 7, No. 150 Cailun Road, Pudong New Area, Shanghai Patentee before: INNOVEX MEDICAL Co.,Ltd. |