CN108175483A - Visual guidance sheath - Google Patents
Visual guidance sheath Download PDFInfo
- Publication number
- CN108175483A CN108175483A CN201810153995.3A CN201810153995A CN108175483A CN 108175483 A CN108175483 A CN 108175483A CN 201810153995 A CN201810153995 A CN 201810153995A CN 108175483 A CN108175483 A CN 108175483A
- Authority
- CN
- China
- Prior art keywords
- sheath
- visual guidance
- outer sheath
- connecting portion
- pipe
- 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
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
- A61B2017/3445—Cannulas used as instrument channel for multiple instruments
Abstract
The present invention relates to a kind of visual guidance sheaths, including outer sheath and expansion pipe, there is cavity in outer sheath, the insertion end end of outer sheath has opening, expansion pipe is worn and can pass through and can be stretched out from the opening of the insertion end end of outer sheath from the cavity of outer sheath, and the non-intrusive end of outer sheath is equipped with first connecting portion；Expanding has silk guide passage and the instrument channel for being inserted into endoscope in pipe, the non-intrusive end for expanding pipe is equipped with second connecting portion, and second connecting portion can be connected with first connecting portion.Visual guidance sheath according to the present invention can realize visualization intubation, prevent from being inserted into catheterization procedure it is too deep or be inserted into it is not in place, so as to avoid that patient is damaged.
Description
Technical field
The present invention relates to medical instruments field, particularly a kind of visual guidance sheath.
Background technology
Kidney stone is a kind of common urinary tract system disease, and male's morbidity over the course for the treatment of, needs to utilize more than women
Sheath first establishes a channel in patient's body, then established channel is recycled to stretch into endoscope, carries out rubble, takes Shi Dengzhi
It treats.
In the prior art, urethra of the seal wire through patient, bladder, ureter are first usually inserted to renal plevis, then by guide sheath
Be inserted into along seal wire at the renal plevis of patient, near blindmate, the position majority of intubation with doctor experience, due to patient individual difference
Very big, the phenomenon that often puncture, and insertion position and depth are difficult to determine or control.
If existing embodiment discloses a kind of Flexible ureteroscope guide sheath, solving current Flexible ureteroscope guide sheath can not
Enhancing perfusion physiological saline, and pressure release is smooth in renal plevis, blood clot discharges ill problem.The present apparatus includes preceding sheath with after
Sheath, the forepart of preceding sheath is hollow straight tube, and straight tube rear end connects the bowl-shaped portion of horn mouth expansion, the bottom of bowl center of bowl-shaped portion
It is connected with straight tube, rear sheath is the housing of front opening, and rear sheath front end is threadedly coupled with the rear end of bowl-shaped portion, after rear sheath
End face is equipped with the soft lens passed through for soft lens and penetrates mouth, and the side of rear sheath is equipped with the water inlet of connection irrigating solution, opposite side setting
The water outlet of negative pressure suction device is connected, inlet and outlet are respectively arranged with shut-off valve.This kind of guide sheath is easy for occurring
Pierce through the situation of patient's body vias inner walls.
Invention content
The purpose of the present invention is to provide a kind of visual guidance sheaths, including outer sheath and expansion pipe, have in outer sheath
Cavity, the insertion end end of outer sheath have opening, expand and are passed through in the cavity of Guan Kecong outer sheaths and can be from the slotting of outer sheath
Enter and stretched out in the opening of end, the non-intrusive end of outer sheath is equipped with first connecting portion；Expansion pipe is with silk guide passage and is used for
The instrument channel of endoscope is inserted into, the non-intrusive end for expanding pipe is equipped with second connecting portion, and second connecting portion can be with first connecting portion
It is connected.
Visual guidance sheath according to the present invention can realize visualization intubation, prevent from being inserted into catheterization procedure too deep
Or insertion is not in place, so as to avoid that patient is damaged.
Further, the insertion end for expanding pipe is taper.
Preferably, on the end face of insertion end that the instrument outlet of instrument channel is located at expansion pipe.
Further, it expands and waterflood path is additionally provided in pipe, the water injection interface of waterflood path is set to the non-of expansion pipe and inserts
Enter end, the water outlet of waterflood path is set on the conical surface exported close to the instrument of the insertion end of expansion pipe.
Preferably, silk guide passage and instrument channel are provided separately, and waterflood path and instrument channel are same channel.
Alternatively, silk guide passage and instrument channel are provided separately, waterflood path and silk guide passage are same channel.
Alternatively, silk guide passage, instrument channel and waterflood path are individually set.
Alternatively, silk guide passage, instrument channel and waterflood path share same channel.
Further, outer sheath is equipped with scale.
Preferably, first connecting portion is connected with second connecting portion in a manner of engaging.
As above, visual guidance sheath disclosed in this invention, can monitor catheterization procedure in real time, accelerate intubation speed,
The pain of patient is dramatically reduced, reduces the risk of operation, while largely avoids the wound caused by patient
Evil.
The above to allow the present invention can be clearer and more comprehensible, preferred embodiment cited below particularly, and with reference to attached drawing, be made detailed
It is described as follows.
Description of the drawings
The present invention is introduced below in conjunction with attached drawing.
Fig. 1 is a kind of overall structure diagram of visual guidance sheath of the present invention；
The schematic cross-section of expansion pipe 2 that Fig. 2 is Fig. 1；
Fig. 3 is the structure diagram that waterflood path 24 is added in Fig. 1；
Fig. 4 is the schematic cross-section that pipe 2 is expanded in Fig. 3；
Fig. 5 is the structure diagram for only setting instrument channel 22.
Component label instructions
1 outer sheath
12 first connecting portions
2 expansion pipes
21 silk guide passages
22 instrument channels
23 guide wire exit openings
24 waterflood paths
25 water injection interfaces
26 second connecting portions
27 instrument imports
221 water filling ports
28 claws
3 developing rings
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this specification
Revealed content understands other advantages and effect of the present invention easily.
As shown in Figure 1 to Figure 2, the present invention provides a kind of visual guidance sheath, when needing to carry out kidney stone rubble hand to patient
It during art, is inserted in renal plevis first with urethra of the guide sheath through patient, bladder, ureter and establishes a channel, then recycled and build
Vertical channel carries out successive treatment to patient.
A kind of visual guidance sheath according to the present invention is mainly used for including outer sheath 1 and expansion pipe 2, outer sheath 1
Patient's body establishes the channel of operation, and the insertion end of outer sheath 1 can be equipped with development section (the display label of developing ring etc.),
After outer sheath 1 enters human body, development section can develop under the irradiation of X-ray, so as to which user be allowed to be apparent from guiding
Position where sheath prevents from being intubated too deep or be intubated not in place.
In addition, development section can also play the role of strengthening support outer sheath 1, the change of outer sheath 1 during insertion is prevented
Shape.
The outer sheath 1 can be three-decker, including outer layer, middle layer and internal layer.Outer layer for such as nylon elastomer or
The elastic polymer layer of the compositions such as person's polyurethane elastomer, middle layer are the formation such as stainless steel material or Nitinol
Coil structures, lubricity macromolecule layer of the internal layer for formation such as Teflon or polyethylene.
Further, in the present invention, development section is preferably arranged on the developing ring 3 at 1 insertion end of outer sheath, when
After outer sheath 1 enters patient's body, the x-ray for being observed patient will not penetrate developing ring 3, so as to clearly show
Position where 1 insertion end of outer sheath is shown.
Further, scale is preferably provided on the outer tube wall of outer sheath 1, convenient for users to clearly stretching into patient's body
Depth.
In the present invention, in outer sheath 1 there is cavity, the insertion end end tool of expansion 2 outer sheath 1 of pipe is equipped in cavity
There is opening, expansion pipe 2 can be stretched out from opening.Due to when for patient cannula, to keep opposite between outer sheath 1 and expansion pipe 2
It is static, prevent from occurring between the two the effect of moving influence intubation, it is therefore preferable that setting fixed dress between outer sheath 1 and expansion pipe 2
It puts, is relatively fixed outer sheath 1 and expansion pipe 2.In the present invention, it is preferred to the first connection is equipped at the non-intrusive end of outer sheath 1
Portion 12, second connecting portion 26 is equipped at the non-intrusive end of expansion pipe 2, and second connecting portion 26 can connect 12 cooperations with first and connect
It connects.
Further, in one embodiment, it is preferred that by first connecting portion 12 with second connecting portion 26 using the shape engaged
Formula is connected, as first connecting portion 12 outer wall on have along outer sheath 1 radial direction convex protrusion, second connection
Portion is claw 28, i.e., the protrusion to convex is formed on the inner wall of second connecting portion 26, and be additionally provided in second connecting portion can
With the hand grip portion 29 that claw 28 is controlled to open, when user holds hand grip portion 29 with a firm grip, claw 28 opens, when second connecting portion 26 arrives
Hand grip portion 29 is unclamped after up to clamped position, first connecting portion 12 fastens with second connecting portion 26.
In the present invention, expansion pipe 2 mainly plays guiding function, and expansion pipe 2 is equipped with silk guide passage 21, and seal wire can lead to from seal wire
The import in road 21 is passed through out of silk guide passage 21 after entering silk guide passage 21 and is stretched out from guide wire exit openings 23.In the present invention,
The import of seal wire is set to the insertion end of expansion pipe 2, and guide wire exit openings 23 are located at the non-intrusive end of silk guide passage 21.Expand pipe 2
The instrument channel 22 for being inserted into endoscope is inside additionally provided with, the instrument outlet of instrument channel 22 is preferably provided at the insertion of expansion pipe
It holds on end face, may also be arranged on expansion pipe by the peripheral surface of proximal end face.In catheterization procedure, by endoscope from instrument channel 22
Inside it is pierced by, you can captured in real-time is carried out, and can come out captured picture real-time Transmission to catheterization procedure using endoscope, from
And realize visual catheterization procedure.Further, after intubation is completed by being extracted out for the endoscope of observation, also using device
Tool channel 22 by stretching into other surgery instruments into instrument channel 22 so as to further be treated to patient, is kept away
Exempt from secondary intubation to damage patient.
Further, since in catheterization procedure, expansion pipe 2 is introduced into patient's body, in order to make expansion pipe 2 more easily
Into patient's body, the insertion end for expanding pipe 2 is preferably set as taper, makes the insertion end reduced diameter of expansion pipe 2, it is convenient into
Enter patient's body.Instrument channel 22 instrument outlet is preferably disposed on expansion 2 insertion end of pipe end face on, silk guide passage 21 into
Mouth is set on the conical surface of expansion 2 insertion end of pipe.
In addition, the instrument outlet of instrument channel 22 can also be set on the conical surface of expansion 2 insertion end of pipe, silk guide passage 21
Import be set to expansion 2 insertion end of pipe end face on.
The channels such as the urethra due to patient are soft tissue channel, may be by the camera of endoscope inside pipeline
It blocks, influences the visual field, therefore, when using endoscope, need to patient's body saline injection, by the blocking before camera
Object is washed open, so as to obtain the clearly visual field.
Further, as shown in Figure 1, in the present invention, it is preferred to carrying out water filling as water pipe using instrument channel 22, specifically
For, can interface be set on expansion pipe 2, add a water filling port 221, and water filling port 221 is connected with instrument channel 22, is passed through
Water filling port 221 can also be used water filling port 221 and water be sucked out from patient's body to patient's body saline injection.It utilizes
Instrument channel 22 is used as waterflood path, will not increase the outer diameter of expansion pipe 2.
Further, water filling also is carried out as water pipe using silk guide passage 21, it specifically, can be on expansion pipe 2
Interface is set, adds a water filling port 221, and water filling port 221 is connected with silk guide passage 21, by water filling port 221 to patient
Internal saline injection, while water filling port 221 can also be used, water is sucked out from patient's body.By the use of silk guide passage 21 as note
Aquaporin will not increase the outer diameter of expansion pipe 2.
In another embodiment of the invention, as shown in Figure 3 and Figure 4, preferably independent water filling is equipped in expansion pipe 2
Channel 24, the water injection interface 25 of waterflood path 24 are set to the non-intrusive end of expansion pipe 2, and the water outlet of waterflood path 24 is set to
The insertion end of pipe 2 is expanded on the conical surface that instrument exports.Intubation when, can into waterflood path 24 saline injection, will
Tissue or dirt before camera are washed open, so that camera obtains the clearly visual field.After the completion of intubation, also using note
The physiological saline of patient's body or watery blood are sucked out water interface 25.Meanwhile when being treated to patient, water filling can also be utilized
Channel 24 is carried out operation auxiliary treatment and either by such as rubble of patient's body or is cut down using waterflood path 24
Pathological tissue is sucked out.
Further, in order to more preferably control the inflow and water intake velocity in waterflood path 24, preferably in water injection interface
Valve is set on 25.
In addition, water injection interface 25 can also external hand gun, hydraulic pamp or suspension titration be irrigated, so as to take the photograph
As head obtains the clearly visual field.
Further, as shown in figure 5, in other embodiments of the invention, expanding the outer of pipe 2 to further reduce
Diameter, only can also set an instrument channel 22 in expansion pipe 2, and the work(such as water filling or perforating silk are realized using instrument channel 22
Can, the seal wire in access instruments channel 22 is interfered with each other with such as endoscopic surgical tool in order to prevent, is preferably being expanded
One opening of insertion end set of pipe 2 is opened, as the entrance of seal wire, seal wire passes through the opening access instruments channel 22, operation
Instrument is exported by instrument to be stretched out from instrument channel 22, thus, you can seal wire is avoided to occur with surgical instrument completely dry
It relates to.
In this embodiment, seal wire can share instrument import 27 with surgical instrument, but need to be separately provided one
Water filling port 221, and water filling port 221 is connected with instrument channel 22, by the use of instrument channel 22 as waterflood path, passes through water filling port
221 to patient's body saline injection, while water filling port 221 can also be used, water is sucked out from patient's body.
In the present invention, seal wire import and instrument outlet are respectively positioned on the insertion end of expansion pipe 2, due to inserting for expansion pipe 2
Enter end for pyramidal structure, seal wire import and instrument outlet can be arbitrarily arranged on the end face of taper or on the conical surface respectively,
So as to avoid the outer diameter of the insertion end end of increase expansion pipe 2.Further, in the present invention, due to surgical instrument quality compared with
Firmly, it is not flexible, and seal wire is softer, is easily bent, it is therefore preferable that instrument outlet to be arranged on to the top of taper, by seal wire into
Mouth is set on the conical surface, and instrument channel is made to keep linear type, is conveniently operated.In the present invention, outer sheath 1 is preferably using nonmetallic
Material is made, soft texture, and discomfort, and low cost will not be caused to patient, and production cost is low, can be used as disposable surgical device
Tool uses, and will not cause economic pressures to patient.
When it is implemented, seal wire is penetrated into patient's body first with special endoscope, until at renal plevis, then by seal wire
One end external positioned at patient is stretched into from seal wire import, can will expand pipe 2 together with outer sheath 1 together from patient's using seal wire
Urethra is inserted into, and by the guiding of seal wire, is cleared the way using the tip for expanding pipe 2, while utilizes the endoscope pair in instrument channel 22
Insertion process is observed in real time, and outer sheath 1 is inserted in place, and is after the completion extracted expansion pipe 2 together with seal wire and endoscope, more
The endoscope for changing outer diameter bigger treats patient.
In conclusion visual guidance sheath according to the present invention can reduce in visual being intubated to patient
Injury to patient, while can become apparent from, effectively patient is treated, the success rate of intubation greatly improved and insert
Tube efficiency, and will damage and be minimized caused by patient, it is easy to use in addition, it is simple in structure to change visual guidance sheath, be worth into
Row wide popularization and application.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (11)
1. a kind of visual guidance sheath, which is characterized in that including outer sheath and expansion pipe, there is cavity, institute in the outer sheath
Stating the insertion end end of outer sheath has opening, is passed through in the cavity of outer sheath described in the expansion Guan Kecong and can be outside described
It is stretched out in the opening of the insertion end end of sheath, the non-intrusive end of the outer sheath is equipped with first connecting portion；The expansion pipe packet
Silk guide passage and instrument channel are included, the non-intrusive end of the expansion pipe is equipped with second connecting portion, and the second connecting portion can be with institute
State first connecting portion mating connection.
2. visual guidance sheath as described in claim 1, which is characterized in that the insertion end of the expansion pipe is taper.
3. visual guidance sheath as claimed in claim 2, which is characterized in that the instrument outlet of the instrument channel is located at the expansion
On the end face for opening the insertion end of pipe.
4. visual guidance sheath as claimed in claim 2, which is characterized in that waterflood path is additionally provided in the expansion pipe, it is described
The water injection interface of waterflood path is set to the non-intrusive end of the expansion pipe, and the water outlet of the waterflood path is set to the expansion
It opens on the conical surface exported close to the instrument of the insertion end of pipe.
5. visual guidance sheath as claimed in claim 4, which is characterized in that the silk guide passage and the instrument channel are separately set
It puts, the waterflood path and the instrument channel are same channel.
6. visual guidance sheath as claimed in claim 4, which is characterized in that the silk guide passage and the instrument channel are separately set
It puts, the waterflood path and the silk guide passage are same channel.
7. visual guidance sheath as claimed in claim 4, which is characterized in that the silk guide passage, the instrument channel and described
Waterflood path is individually set.
8. visual guidance sheath as claimed in claim 4, which is characterized in that the silk guide passage, the instrument channel and described
Waterflood path shares same channel.
9. visual guidance sheath as described in claim 1, which is characterized in that the outer surface of the insertion end of the outer sheath is equipped with
Development section.
10. visual guidance sheath as claimed in claim 7, which is characterized in that the outer sheath is equipped with scale.
11. visual guidance sheath as described in claim 1, which is characterized in that the first connecting portion and the second connecting portion
It is connected in a manner of engaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810153995.3A CN108175483A (en) | 2018-02-22 | 2018-02-22 | Visual guidance sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810153995.3A CN108175483A (en) | 2018-02-22 | 2018-02-22 | Visual guidance sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108175483A true CN108175483A (en) | 2018-06-19 |
Family
ID=62552836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810153995.3A Pending CN108175483A (en) | 2018-02-22 | 2018-02-22 | Visual guidance sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108175483A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109846521A (en) * | 2019-02-12 | 2019-06-07 | 吴小军 | Direct-viewization ureter guide sheath |
| CN110115599A (en) * | 2019-05-16 | 2019-08-13 | 声索生物科技(上海)有限公司 | Sheath tube assembly, ultrasonic probe and its assemble method |
| CN110215262A (en) * | 2019-07-09 | 2019-09-10 | 上海英诺伟医疗器械有限公司 | A kind of flexible attraction sheath |
| CN110559545A (en) * | 2019-08-30 | 2019-12-13 | 珠海普生医疗科技有限公司 | Visual guide sheath |
| CN111921070A (en) * | 2020-08-31 | 2020-11-13 | 武汉佑康科技有限公司 | Combined structure of sheath-entering expansion tube and ureteral sheath |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040254422A1 (en) * | 2000-01-10 | 2004-12-16 | Singh Errol O. | Method and apparatus for facilitating urological procedures |
| CN204219588U (en) * | 2014-10-28 | 2015-03-25 | 张家港市华美医疗器械有限公司 | Ureter imports sheath |
| CN105380716A (en) * | 2015-10-30 | 2016-03-09 | 刘旭 | Visible ureterorenoscope negative-pressure stone-removing pressure-measuring expanding sheath assembly with marks |
| CN107320140A (en) * | 2017-08-07 | 2017-11-07 | 武汉佑康科技有限公司 | A kind of endoscope working sheath for urological surgery |
| CN107374698A (en) * | 2017-07-11 | 2017-11-24 | 程跃 | A kind of percutaneous nephrolithy visually expands sheath |
-
2018
- 2018-02-22 CN CN201810153995.3A patent/CN108175483A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040254422A1 (en) * | 2000-01-10 | 2004-12-16 | Singh Errol O. | Method and apparatus for facilitating urological procedures |
| CN204219588U (en) * | 2014-10-28 | 2015-03-25 | 张家港市华美医疗器械有限公司 | Ureter imports sheath |
| CN105380716A (en) * | 2015-10-30 | 2016-03-09 | 刘旭 | Visible ureterorenoscope negative-pressure stone-removing pressure-measuring expanding sheath assembly with marks |
| CN107374698A (en) * | 2017-07-11 | 2017-11-24 | 程跃 | A kind of percutaneous nephrolithy visually expands sheath |
| CN107320140A (en) * | 2017-08-07 | 2017-11-07 | 武汉佑康科技有限公司 | A kind of endoscope working sheath for urological surgery |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109846521A (en) * | 2019-02-12 | 2019-06-07 | 吴小军 | Direct-viewization ureter guide sheath |
| CN110115599A (en) * | 2019-05-16 | 2019-08-13 | 声索生物科技(上海)有限公司 | Sheath tube assembly, ultrasonic probe and its assemble method |
| CN110215262A (en) * | 2019-07-09 | 2019-09-10 | 上海英诺伟医疗器械有限公司 | A kind of flexible attraction sheath |
| CN110215262B (en) * | 2019-07-09 | 2024-03-26 | 上海英诺伟医疗器械股份有限公司 | Bendable suction sheath |
| CN110559545A (en) * | 2019-08-30 | 2019-12-13 | 珠海普生医疗科技有限公司 | Visual guide sheath |
| CN111921070A (en) * | 2020-08-31 | 2020-11-13 | 武汉佑康科技有限公司 | Combined structure of sheath-entering expansion tube and ureteral sheath |
| CN111921070B (en) * | 2020-08-31 | 2022-08-09 | 武汉佑康科技有限公司 | Combined structure of sheath-entering expansion tube and ureteral sheath |
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Address after: 201210 east of 1st and 2nd floors, building 7, No. 150 Cailun Road, Pudong New Area, Shanghai Applicant 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 Applicant before: INNOVEX MEDICAL Co.,Ltd. |
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