CN209048210U - A kind of sheath and guide sheath - Google Patents
A kind of sheath and guide sheath Download PDFInfo
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- CN209048210U CN209048210U CN201821320550.1U CN201821320550U CN209048210U CN 209048210 U CN209048210 U CN 209048210U CN 201821320550 U CN201821320550 U CN 201821320550U CN 209048210 U CN209048210 U CN 209048210U
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Abstract
The utility model provides a kind of sheath and guide sheath, is related to the field of medical instrument technology.The sheath includes: sheath tube body and enhancement layer；First passage and second channel are axially arranged in the sheath body；The enhancement layer is embedded on the first passage inner wall；Second channel entrance is additionally provided on the side wall of the sheath, and the second channel entrance is connected to the second channel.Using the sheath and including the guide sheath of the sheath, doctor is enabled to be convenient for operating in the course of surgery, and is not concerned about bending endoscope.
Description
Technical field
The utility model relates to the field of medical instrument technology, in particular to a kind of sheath and guide sheath.
Background technique
Minimally invasive intervention operation occupies increasingly consequence in the inspection and treatment of medical field disease, and is performing the operation
In in order to constantly improve surgical procedure convenience and promoted operation safety, for medical instrument used in Minimally Invasive Surgery
Constantly improving.
Percutaneous nephroscope lithotripsy stone-extraction operation is very typical a kind of operation in minimally invasive intervention operation.And it is taken in percutaneous nephroscope lithotripsy
Shi Shuzhong, percutaneous nephrolithy sheath carry particularly important effect.Chief surgical process are as follows: by percutaneous nephrolithy sheath people's
Waist establishes a channel from skin to kidney, and kidney mirror is inserted into kidney by this channel, recycles other technologies or work
Kidney stone is smashed and is taken out by tool.
But existing percutaneous nephrolithy sheath is not easy to operate in surgical, and can bend in percutaneous nephrolithy sheath
Endoscope.
Utility model content
The purpose of this utility model is that in view of the deficiency of the prior art, a kind of sheath and guide sheath are provided, made
With comprising the sheath and including the guide sheath of the sheath, doctor is enabled to be convenient for swinging sheath in the course of surgery, without carrying on a shoulder pole
The heart bends endoscope.In addition, the sheath can be effectively reduced system while meeting use and needing compared with two-chamber stainless steel tube
Cause this.
To achieve the above object, the utility model embodiment the technical solution adopted is as follows:
In a first aspect, the utility model embodiment provides a kind of sheath, comprising: sheath tube body and enhancement layer；
First passage and second channel are axially arranged in the sheath body；
The enhancement layer is embedded on the first passage inner wall；
Second channel entrance is additionally provided on the side wall of the sheath, and the second channel entrance and the second channel connect
It is logical.
Further, the sheath tube body is nylon elastomer material.
Further, the material of the enhancement layer is stainless steel.
Further, the center of the sheath tube body, the first passage and the second channel perpendicular to axial section
It is located along the same line.
Second aspect, the utility model embodiment additionally provide a kind of guide sheath, comprising: crossover sub, pressure measuring unit and
Sheath as described in relation to the first aspect；
A cavity is equipped in the crossover sub；The crossover sub is equipped with first passage entrance and opening, and described
First passage entrance and the opening are connected to the cavity respectively；End cover is additionally provided in the opening, in the cavity
Equipped with sealing ring is equipped with, observation chamber is formed between the sealing ring and the end cover；The crossover sub and the sheath
One end close to the second channel entrance is fixedly connected, and the first passage of the cavity in the crossover sub and the sheath
Connection；
The pressure measuring unit is set in the second channel, for monitoring the pressure of operative site.
Further, silicagel pad is additionally provided between the end cover and the opening.
Further, the pressure measuring unit includes: fibre optical sensor, transmission fiber, fiber-optic signal processor and display；
The fibre optical sensor is set to one end of the second channel, for acquiring the pressure information of operative site；
The transmission fiber pass through the second channel entrance, be layed in the second channel, respectively with the optical fiber
Sensor is connected with the fiber-optic signal processor, described for the collected pressure information of the fibre optical sensor to be sent to
Fiber-optic signal processor；
The fiber-optic signal processor is electrically connected with the display, for the pressure information received to be handled,
And real-time display is carried out by the display.
Further, the second channel inlet is additionally provided with optic fibre fixing device.
Further, the optic fibre fixing device includes: silica gel, the silica gel fixing piece, Shandong being wrapped on the outside of transmission fiber
Your connector and with internal thread nut；The silica gel is embedded in the silica gel fixing piece, the silica gel fixing piece with it is described
Female Luer clamping, the nut are spirally connected with the female Luer.
Further, the pressure measuring unit is the liquid gas coupling manograph being arranged in the second channel.
The beneficial effects of the utility model are:
In a first aspect, sheath provided by the utility model embodiment is by being arranged enhancement layer on first passage inner wall,
It enables to doctor to be convenient for swinging sheath in the course of surgery, and avoids bending endoscope.Second channel can be used for being arranged survey pressure
Device carries out real-time monitoring to the pressure of patient's operative site.
Second aspect, guide sheath provided by the utility model embodiment includes: crossover sub, pressure measuring unit and first party
Sheath described in face, by being arranged first passage entrance and opening on crossover sub, first passage entrance and be open respectively with
Cavity connection, and end cover is set in opening, and sealing ring is arranged in cavity, so that when endoscope is logical by first
When in road entrance and sealing ring insertion first passage, sealing ring can completely cut off operative site and extraneous air, so that Surgery
The internal pressure of position will not be influenced by the external world, ensure that the safety of operation.In addition, forming observation between sealing ring and sealing cover
Chamber enables to doctor's more convenient the case where clearly calculus is taken out in observation.Pressure measuring unit can effectively monitor patient's Surgery
The pressure change of position, takes reasonable measure at any time convenient for doctor, reduces the risk of operation.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the sheath cross-sectional view that the utility model first embodiment provides；
Fig. 2 is the sheath structural schematic diagram that the utility model first embodiment provides；
The schematic cross-section for the different sheaths that Fig. 3 the utility model first embodiment provides；
The guide sheath structural schematic diagram that Fig. 4 the utility model second embodiment provides；
The optical fiber that Fig. 5 the utility model 3rd embodiment provides surveys pressure guide sheath structural schematic diagram；
The optic fibre fixing device Structure explosion diagram that Fig. 6 utility model 3rd embodiment provides.
Icon: 100- sheath；110- sheath tube body；111- first passage；112- second channel；112a- second channel entrance；
120- enhancement layer；200- guide sheath；210- crossover sub；211- first passage entrance；212- opening；213- end cover；
214- sealing ring；215- observes chamber；216- silicagel pad；220- fibre optical sensor；230- optic fibre fixing device；231- silica gel；
232- silica gel fixing piece；233- female Luer；234- nut.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or
The utility model product using when the orientation or positional relationship usually put, be merely for convenience of description the utility model and letter
Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and
Operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second ", " third " etc. are only used for area
Divide description, is not understood to indicate or imply relative importance.
In addition, the terms such as term "horizontal", "vertical" are not offered as requiring component abswolute level or pendency, but can be slightly
Low dip.It is not to indicate that the structure has been had to if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It is complete horizontal, but can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
First embodiment:
As depicted in figs. 1 and 2, the utility model first embodiment provides a kind of sheath 100, comprising: sheath tube body 110 and increasing
Strong layer 120；First passage 111 and second channel 112 are axially arranged in the sheath tube body 110；The enhancement layer 120 is embedded in institute
It states on 111 inner wall of first passage；Second channel entrance 112a, and the second channel are additionally provided on the side wall of the sheath 100
Entrance 112a is connected to the second channel 112.
Specifically, sheath tube body 110 forms the main structure of sheath 100, the first passage being axially arranged in sheath tube body 110
111 form the service aisle of sheath 100, for the insertion of the Medical Instruments such as endoscope, expander.It is axially set in sheath tube body 110
The second channel 112 set is used for the measuring pressure passage of sheath 100, can be supervised by the way that pressure measuring unit is arranged inside second channel 112
Survey the pressure of operative site.
In the utility model embodiment, sheath tube body 110 can be made by nylon elastomer material.Nylon elastomer
Belong to engineering polymers, is free from the thermoplastic elastomer (TPE) of plasticizer.Nylon elastomer material is set by sheath tube body 110, it can
So that sheath tube body 110 not only has convenient hardness, but also there is good resilience, can guarantee in the course of surgery good
Operating characteristics, while the pain of patient can also be mitigated.In the axial setting first passage 111 and second in 110 inside of sheath tube body
Channel 112, and increase enhancement layer 120 on the inner wall of first passage 111, to increase the hardness of the inner wall of first passage 111, from
And when doctor carries out swinging sheath 100 in surgical procedure, its internal endoscope bending can be prevented.
In the utility model embodiment, the material of enhancement layer 120 can be stainless steel material.Specifically, can pass through
Stainless steel tube is internally embedded in first passage 111 to realize the effect of enhancement layer 120, the stainless steel tube and first passage 111
Inside be tightly bonded.To which the tube wall of stainless steel tube is enhancement layer 120, and internal pipeline forms first passage 111, is formed
The service aisle of sheath 100.
It should be strongly noted that the material of sheath tube body 110 can also be other tools in addition to above-mentioned nylon elastomer material
There is the material of outstanding bending fatigue resistance and elastic recovery.Enhancement layer 120 can also be carbon constructional quality steel, carbon
The function of enhancement layer 120 may be implemented in other for tool steel, structural alloy steel etc., enhances the hardness of sheath 100, can be avoided first
The material of endoscope bending in channel 111.Spy is not done herein for material the application of above-mentioned sheath tube body 110, enhancement layer 120
It does not limit.
Further, in the utility model embodiment, sheath tube body 110, first passage 111 are vertical with second channel 112
It is located along the same line in the center in axial section.
Specifically, when the kernel of section of sheath tube body 110, first passage 111 and second channel 112 is located along the same line
When, the waste of material can be effectively reduced, and first passage can be increased in the case where guaranteeing that 110 outer diameter of sheath tube body is certain
111 and second channel 112 sectional area so that the sheath 100 is while effectively reducing cost, further improving makes
Use performance.
It should be strongly noted that in the use of the new type embodiment, it can be by the first passage 111 of sheath 100 and
Shape as shown in Figure 3 is respectively set in two channels 112.When first passage 111 and second channel 112 are arranged to shape shown in Fig. 3
When shape, the first passage 111 of the sheath 100 and the sectional area of second channel 112 are larger, and are capable of the production of effective sheath 100
Cost, while making the sheath 100 that there is preferable performance.Furthermore it is also possible to by the first passage 111 of the sheath 100 and
Two channels 112 are arranged to other any shapes that can achieve said effect, and the application does not do any restriction herein.
Second embodiment:
As shown in figure 4, the utility model second embodiment provides a kind of guide sheath 200, comprising: crossover sub 210 surveys pressure
Device and as described in the first embodiment any sheath 100.The utility model second embodiment and the utility model first
Details are not described herein for embodiment something in common, the difference is that, a cavity is equipped in crossover sub 210；Crossover sub 210
It is equipped with first passage entrance 211 and opening 212, and first passage entrance 211 and opening 212 are connected to cavity respectively；Opening
It is additionally provided with end cover 213 on 212, is equipped with sealing ring 214 in cavity, is formed between sealing ring 214 and end cover 213
Observe chamber 215；Crossover sub 210 is fixedly connected with sheath 100 close to one end of second channel entrance 112a, and crossover sub
Cavity in 210 is connected to the first passage 111 of sheath 100.Pressure measuring unit is set in second channel 112, for monitoring hand
The pressure at art position.
Specifically, when being performed the operation, endoscope or other instruments pass through first passage entrance 211 and enter first passage
In 111, further progress surgical work.It, can be by protruding into first passage 111 when carrying out kidney stone operation to patient
Sight glass or other instruments take out calculus to the cavity of crossover sub 210, and doctor can be taken in time calculus by opening 212
Out；In addition, doctor can also pass through opening when the substance that the intracorporal blood of someone in guide sheath 200 or other influences are performed the operation
It is cleared up inside 212 pairs of guide sheaths 200.And when opening 212 needs to be closed in the course of surgery, end cover 213 is covered
In opening 212,200 inside of guide sheath can be isolated with external environment.Between end cover 213 and sealing ring 214
Observation chamber 215 is formed, can be made in the course of surgery, doctor can also observe the situation of winning of calculus, and according to sight
Situation is examined to judge in time.It is real additionally, due to when performing the operation to patient, needing the pressure to patient's operative site to carry out
When monitor, when operative site hypertonia or it is too low when, doctor need take appropriate measures, it is possible to by sheath
Pressure measuring unit is set in 100 second channel 112, real-time monitoring is carried out to the pressure of operative site.
Optionally, in the utility model embodiment, silicagel pad 216 is additionally provided between end cover 213 and opening 212.
Specifically, can closer be guaranteed by the way that silicagel pad 216 is arranged between end cover 213 and opening 212
The isolation performance of end cover 213, so that 200 inner sealing of guide sheath is more preferable.
In some embodiments of the utility model, sealing ring 214 can be set to double-layer structure.Specifically, by sealing ring
214 cross bores that wherein one layer of centre is passed through equipped with instrument, in addition one layer of centre is provided with the round hole passed through for instrument.It is double-deck
In the sealing ring 214 of structure, by the cooperation of cross bore and circular hole, it can be inserted in the course of surgery when endoscope or other instruments
Fashionable, sealing ring 214 can preferably completely cut off contacting for first passage 111 and the cavity of crossover sub 210, provide preferably close
Sealing property.
In the utility model other embodiment, sealing ring 214 can be set to single layer structure.Specifically, close
The intermediate position of seal 214 can open up cross bore, circular hole or it is any other when instrument insertion when can be to first passage
111 shapes preferably sealed.
3rd embodiment:
As shown in figure 5, the utility model 3rd embodiment provides a kind of optical fiber survey pressure guide sheath 200, including originally practical new
The all technical features of type second embodiment, details are not described herein with the utility model second embodiment something in common, different
Place is that pressure measuring unit specifically includes: fibre optical sensor 220, transmission fiber, fiber-optic signal processor and display.Optical fiber
Sensor 220 is set to one end of second channel 112, for acquiring the pressure information of operative site；Transmission fiber passes through second
Feeder connection 112a is layed in second channel 112, and is connect respectively with fibre optical sensor 220 and fiber-optic signal processor, is used
In the collected pressure information of fibre optical sensor 220 is sent to fiber-optic signal processor；Fiber-optic signal processor and display
Electrical connection, for handling the pressure information received, and carries out real-time display by display.
Optionally, in the utility model embodiment, optic fibre fixing device 230 is additionally provided at second channel entrance 112a.
It specifically, can be in surgical procedure by the way that fibre optical sensor 220 and transmission fiber are arranged in second channel 112
In effectively monitor the pressure of operative site.And by the way that optic fibre fixing device 230, Ke Yibao is arranged at second channel entrance 112a
The stability for demonstrate,proving transmission fiber and fibre optical sensor 220 further ensures stability and standard to operation site pressure monitoring
True property.
Further, as shown in fig. 6, optic fibre fixing device 230 includes: silica gel 231, the silicon being wrapped on the outside of transmission fiber
Glue fixing piece 232, female Luer 233 and with internal thread nut 234；Silica gel 231 is embedded in silica gel fixing piece 232, silicon
Glue fixing piece 232 and female Luer 233 are clamped, and nut 234 is spirally connected with female Luer 233.
Specifically, transmission fiber passes through silica gel 231, and silica gel 231 is the knot as shown in FIG. 6 that can wrap transmission fiber
Structure；Then silica gel 231 is fixed in silica gel fixing piece 232, one end of silica gel fixing piece 232 is provided with claw, and the other end can
To carry out cooperation fixation with female Luer 233；Further female Luer as shown in the figure will be embedded in comprising silica gel fixing piece 232
In 233；Set internal screw thread can work in coordination with female Luer 233 and is fixed in nut 234, would be embedded with silica gel and fix
The female Luer 233 of part 232 is inserted into nut 234 and is screwed, during screwing, the claw of silica gel fixing piece 232 with
Clamping is gradually also firmly grasped inside nut 234.To sum up, which transmission fiber can be fixed, and go forward side by side
One step guarantees the stability for the fibre optical sensor 220 connecting with transmission fiber.
Fourth embodiment:
The utility model fourth embodiment provides a kind of guide sheath 200, the whole including the utility model second embodiment
Details are not described herein with second embodiment something in common for technical characteristic, structure and principle, the difference is that, the survey pressure
Device is the liquid gas coupling pressure measuring unit being arranged in second channel 112.
Specifically, in the course of surgery, liquid gas coupling pressure measuring unit can monitor the pressure of operative site more accurately
Power variation carries out control convenient for pressure of the doctor to operative site, and adjusts solution in real time.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of sheath characterized by comprising sheath tube body and enhancement layer；
First passage and second channel are axially arranged in the sheath body；
The enhancement layer is embedded on the first passage inner wall；
Second channel entrance is additionally provided on the side wall of the sheath, and the second channel entrance is connected to the second channel.
2. sheath according to claim 1, which is characterized in that the sheath tube body is nylon elastomer material.
3. sheath according to claim 1, which is characterized in that the material of the enhancement layer is stainless steel.
4. sheath according to claim 1, which is characterized in that the sheath tube body, the first passage and described second are logical
Road is located along the same line perpendicular to the center in axial section.
5. a kind of guide sheath characterized by comprising crossover sub, pressure measuring unit and according to any one of claims 1-4
Sheath；
A cavity is equipped in the crossover sub；The crossover sub is equipped with first passage entrance and opening, and described first
Feeder connection and the opening are connected to the cavity respectively；It is additionally provided with end cover in the opening, is equipped in the cavity
Observation chamber is formed equipped with sealing ring, between the sealing ring and the end cover；The crossover sub and the sheath are close
One end of the second channel entrance is fixedly connected, and the cavity in the crossover sub and the first passage of the sheath connect
It is logical；
The pressure measuring unit is set in the second channel, for monitoring the pressure of operative site.
6. guide sheath according to claim 5, which is characterized in that be additionally provided with silicon between the end cover and the opening
Rubber mat.
7. guide sheath according to claim 5, which is characterized in that the pressure measuring unit includes: fibre optical sensor, transmission light
Fine, fiber-optic signal processor and display；
The fibre optical sensor is set to one end of the second channel, for acquiring the pressure information of operative site；
The transmission fiber pass through the second channel entrance, be layed in the second channel, respectively with the Fibre Optical Sensor
Device is connected with the fiber-optic signal processor, for the collected pressure information of the fibre optical sensor to be sent to the optical fiber
Signal processor；
The fiber-optic signal processor is electrically connected with the display, for handling the pressure information received, and is led to
It crosses the display and carries out real-time display.
8. guide sheath according to claim 7, which is characterized in that the second channel inlet is additionally provided with the fixed dress of optical fiber
It sets.
9. guide sheath according to claim 8, which is characterized in that the optic fibre fixing device includes: to be wrapped in transmission light
The silica gel in fine outside, silica gel fixing piece, female Luer and with internal thread nut；The silica gel is embedded in the silica gel and fixes
In part, the silica gel fixing piece and the female Luer are clamped, and the nut is spirally connected with the female Luer.
10. guide sheath according to claim 5, which is characterized in that the pressure measuring unit is to be arranged in the second channel
Interior liquid gas couples manograph.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821320550.1U CN209048210U (en) | 2018-08-15 | 2018-08-15 | A kind of sheath and guide sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821320550.1U CN209048210U (en) | 2018-08-15 | 2018-08-15 | A kind of sheath and guide sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209048210U true CN209048210U (en) | 2019-07-02 |
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ID=67047514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821320550.1U Active CN209048210U (en) | 2018-08-15 | 2018-08-15 | A kind of sheath and guide sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209048210U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115068786A (en) * | 2022-07-27 | 2022-09-20 | 首都医科大学附属北京安贞医院 | Medical sheath pipe |
-
2018
- 2018-08-15 CN CN201821320550.1U patent/CN209048210U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115068786A (en) * | 2022-07-27 | 2022-09-20 | 首都医科大学附属北京安贞医院 | Medical sheath pipe |
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