CN203935497U - A kind of novel ureter guiding sheath - Google Patents
A kind of novel ureter guiding sheath Download PDFInfo
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- CN203935497U CN203935497U CN201420303723.4U CN201420303723U CN203935497U CN 203935497 U CN203935497 U CN 203935497U CN 201420303723 U CN201420303723 U CN 201420303723U CN 203935497 U CN203935497 U CN 203935497U
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- sheath
- sheath pipe
- divergent channel
- convergent divergent
- joint
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Abstract
This utility model relates to a kind of novel ureter guiding sheath, belongs to technical field of medical instruments, and it has solved novel ureter guiding sheath toughness of the prior art and the poor problem of operation comfort.This novel ureter guiding sheath, comprise sheath pipe and be close to sheath inside pipe wall and arrange and the convergent divergent channel coaxial with sheath pipe, sheath pipe one end is provided with sheath pipe joint, convergent divergent channel one end is provided with convergent divergent channel joint, sheath pipe joint and convergent divergent channel joint are fixed together by fixation clamp, and sheath inside pipe wall is provided with the reinforcement unit that prevents the distortion of sheath pipe.This novel ureter guiding sheath by arranging reinforcement unit in sheath pipe, improve intensity and the toughness of this guiding sheath, also be provided with handle simultaneously, facilitate medical worker to operate, on sheath pipe and convergent divergent channel, be also provided with in addition hydrophilic coating, improved safety in utilization and comfortableness, possess simple in structure, the advantage that result of use is good.
Description
Technical field
This utility model belongs to technical field of medical instruments, relates to a kind of ureter guiding sheath, the ureter guiding sheath that particularly a kind of structural strength is high.
Background technology
The ureter of human body is a pair of flat and elongated flesh sexual organ, each of left and right, rise from renal pelvis end, finally bladder, is about 20～30CM, and caliber is 0.5～0.7MM approximately, ureter total length is divided into three sections of abdominal part, pelvic part and pars intramuralis, there are three physiological stenosis positions, the one, upper narrow is at UPJ, and the 2nd, middle narrow positions strides across ilium blood vessel place in superior pelvic aperture, ureter; The 3rd, lower narrow is inner at ureter, through wall of urinary bladder place, and these narrow are the foreign body retention part such as calculus often.Nearly ten years, the upper urinary tract of patient (kidney, ureter) calculus sickness rate significantly improves, upper lithangiuria has become one of modal urological diseases, calculus mechanism is still not clear, cardinal symptom is pain and hematuria, simultaneously Stone obstruction can cause hydronephrosis, renal function injury, and calculus infects also can cause to go out in urine pus cell, the complication such as high heat occur.When there is On urinary calculi in it, routine clinical Therapeutic Method smashes calculus to allow it discharges with urine voluntarily except the lighter employing external stone crushing apparatus of disease, the most convenient effective Therapeutic Method is to adopt " per urethra expansion ureteroscope lithotomy " and " percutaneous renal puncture Wicresoft ureteroscope lithotomy " two kinds, and need to set up operation path when operation, by operation path, import ureteroscope, laser fiber, calculus removing instrument etc., to facilitate, carry out operation technique.
In existing clinical technology, set up operation path normally per urethra expansion enter or direct percutaneous puncture, the medical apparatus and instruments such as Er Jiang endoscope (as ureterscopy or soft lens, cystoscope), laser fiber directly import in urinary tract one by one, human body ureter extremely damages during change of equipment so repeatedly, make to import traumatic larger, increasing patient operates misery, infects equivalent risk, when soft ureteroscope imports in addition, easily damage, and maintenance cost costliness is by the cost of corresponding raising operation.
For the problems referred to above, those skilled in the art have carried out certain improvement, as a kind of ureteral catheter sheath that Chinese patent (Granted publication CN202681991U) provides, it comprises a guiding sheath, and this guiding sheath is provided with an expanding channel importing for medical apparatus and instruments; One is matched to expand ureteral convergent divergent channel with this guiding sheath; One for the fixing fixation clamp of convergent divergent channel, and this fixation clamp is connected with this convergent divergent channel; An and pallet.It is less that it possesses ureter wound risk; Do not need repeatedly to puncture, can reduce patient suffering; When apparatus is repeatedly changed, can preferably protect precision instrument and thinner flexible endoscope, prevent that medical apparatus and instruments from damaging.
Yet in above-mentioned patent, guiding sheath inwall, owing to supporting without strengthening seal wire, because pressurized easily makes to guide sheath generation kink or it is flat to contract, causes path obstacle during use; And because guiding sheath surfaces externally and internally and convergent divergent channel outer surface are not made lubricated, when not only guiding sheath per urethra is inserted, can increase Principle of Pain, and guide in use sheath and very easily stick together with human body mucosal tissue, damage urethra or other tissue adherence; When the precision instruments such as endoscope, laser fiber are used, (in guiding sheath passage, insert or extract out) simultaneously, because coefficient of friction is large, easily make these precision instruments impaired.In addition, owing to there is no to support the fixedly handle of ureteral catheter sheath, use Shi doctor's proficiency set to hold pallet, carry out operation technique on the other hand by Medical Instruments such as endoscopies, the time one is long, feels hands acid weak during doctor, affects surgical effect.
Utility model content
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of structural strength high, novel ureter guiding sheath easy to use.
The purpose of this utility model can realize by following technical proposal: a kind of novel ureter guiding sheath, comprise sheath pipe and be close to sheath inside pipe wall and arrange and the convergent divergent channel coaxial with sheath pipe, described sheath pipe one end is provided with sheath pipe joint, described convergent divergent channel one end is provided with convergent divergent channel joint, described sheath pipe joint and convergent divergent channel joint are fixed together by fixation clamp, it is characterized in that, described sheath inside pipe wall is provided with the reinforcement unit that prevents the distortion of sheath pipe.
By reinforcement unit is set in sheath pipe, can reinforce sheath tube passage, the operation that facilitates the precision instruments such as endoscope, calculus removing instrument to insert or extract out, the toughness of reinforcement sheath pipe, avoid in use sheath pipe to occur the phenomenons such as kink, bending, affect safety in utilization.
In above-mentioned novel ureter guiding sheath, described reinforcement unit is that the rustless steel that is inlaid in sheath inside pipe wall is strengthened seal wire.Rustless steel seal wire is spring-like, can play the effect of strengthening sheath pipe intensity, can prevent again the unhandy problem of the excessive appearance of sheath pipe rigidity.
As another kind of scheme, in above-mentioned novel ureter guiding sheath, described reinforcement unit is the rustless steel reinforcement that is inlaid in sheath inside pipe wall.Rustless steel reinforcement is connected in sheath inside pipe wall, can sheath pipe be played and be strengthened and supporting role.
In above-mentioned novel ureter guiding sheath, on described sheath pipe joint, removably connect and be useful on the handle of gripping.The shape size of handle is convenient to hold, and with hold the two edges that contact and be bright and clean interim ripple nick shaped.Handle is arranged to removably connect, and can install as required in use or pull down.
In above-mentioned novel ureter guiding sheath, described convergent divergent channel outer wall and sheath inside pipe wall are coated with hydrophilic coating.This hydrophilic coating is to be made by polyvinylpyrrolidone material good, nontoxic with the tissue compatibility, non-stimulated sensitization, it can greatly strengthen the lubricity on sheath pipe and convergent divergent channel surface, in inserting or extract out body cavities and tissue, can reduce mucosa damage, alleviate patient's misery, can effectively avoid the damage of the accurate Medical Instruments such as endoscope, laser fiber simultaneously.
In above-mentioned novel ureter guiding sheath, described sheath pipe joint end is provided with the pallet that is bowl-shape, and described pallet is provided with for the Access Division with handle assembling, and described handle end is provided with the blocked hole matching with Access Division.Pallet is for hydrops out of guiding in splendid attire convergent divergent channel, rubble etc.
In above-mentioned novel ureter guiding sheath, the front end of described sheath pipe joint is also provided with for connecting external fixation device or the fixing connecting hole of medical apparatus and instruments.
In above-mentioned novel ureter guiding sheath, described sheath pipe joint is provided with boss, described fixation clamp is provided with the hasp snapping onto on boss, described convergent divergent channel joint one end communicates with convergent divergent channel, the other end is provided with assembling step, and described fixation clamp is provided with the pilot hole for the clamping of convergent divergent channel joint.
Compared with prior art, this novel ureter guiding sheath by arranging reinforcement unit in sheath pipe, improve intensity and the toughness of this guiding sheath, also be provided with handle simultaneously, facilitate medical worker to operate, on sheath pipe and convergent divergent channel, be also provided with in addition hydrophilic coating, improved safety in utilization and comfortableness, possess simple in structure, the advantage that result of use is good.
Accompanying drawing explanation
Fig. 1 is the general assembly drawing of this novel ureter guiding sheath;
Fig. 2 is the structural representation of this novel ureter guiding sheath mesotheca pipe and sheath pipe joint;
Fig. 3 is the structural representation of pallet in this novel ureter guiding sheath;
Fig. 4 is the structural representation of fixation clamp and convergent divergent channel joint in this novel ureter guiding sheath;
Fig. 5 is the structural representation of convergent divergent channel joint in this novel ureter guiding sheath.
In figure, 1, sheath pipe; 11, sheath pipe joint; 12, boss; 2, convergent divergent channel; 21, convergent divergent channel joint; 22, assembling step; 3, fixation clamp; 31, hasp; 32, pilot hole; 4, strengthen seal wire; 5, pallet; 51, Access Division; 6, handle; 61, blocked hole; 7, connecting hole.
The specific embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but this utility model be not limited to these embodiment.
As shown in Fig. 1～5, this novel ureter guiding sheath, comprise sheath pipe 1 and be close to the 1 inwall setting of sheath pipe and the convergent divergent channel 2 coaxial with sheath pipe 1, sheath pipe 1 one end is provided with sheath pipe joint 11, convergent divergent channel 2 one end are provided with convergent divergent channel joint 21, described sheath pipe joint 11 and convergent divergent channel joint 21 are fixed together by fixation clamp 3, and sheath pipe 1 inwall is provided with the reinforcement unit that prevents 1 distortion of sheath pipe, and described reinforcement unit is that the rustless steel that is inlaid in sheath pipe 1 inwall is strengthened seal wire 4.Rustless steel seal wire is spring-like, can play the effect of strengthening sheath pipe 1 intensity, can prevent again the unhandy problem of the sheath pipe excessive appearance of 1 rigidity.
As shown in Figure 3, in this novel ureter guiding sheath, described sheath pipe joint 11 ends are provided with the pallet 5 that is bowl-shape, described pallet 5 is provided with Access Division 51, on Access Division 51, removably connect and be useful on the handle 6 of gripping, the shape size of handle 6 is convenient to hold, and handle 6 is provided with the blocked hole 61 with Access Division 51 clampings.Handle 6 is arranged to removably connect, and can install as required in use or pull down.Pallet 5 is for hydrops out of the interior guiding of splendid attire convergent divergent channel 2, rubble etc.
For improving user's user satisfaction, described convergent divergent channel 2 outer walls and sheath pipe 1 inwall are coated with hydrophilic coating, this hydrophilic coating is to be made by polyvinylpyrrolidone material good, nontoxic with the tissue compatibility, non-stimulated sensitization, it can greatly strengthen the lubricity on sheath pipe 1 and convergent divergent channel 2 surfaces, in inserting or extract out body cavities and tissue, can reduce mucosa damage, alleviate patient's misery, can effectively avoid the damage of the accurate Medical Instruments such as endoscope, laser fiber simultaneously.
As shown in Fig. 2, Fig. 4 and Fig. 5, the front end of described sheath pipe joint 11 is also provided with for connecting external fixation device or the fixing connecting hole 7 of medical apparatus and instruments.Described sheath pipe joint 11 is provided with boss 12, described fixation clamp 3 is provided with the hasp 31 snapping onto on boss 12, described convergent divergent channel joint 21 one end communicate with convergent divergent channel 2, and the other end is provided with assembling step 22, and described fixation clamp 3 is provided with the pilot hole 32 for 21 clampings of convergent divergent channel joint.
This ureter guiding sheath in use, first sheath pipe 1 is connected with sheath pipe joint 11, convergent divergent channel 2 is connected with convergent divergent channel joint 21, then convergent divergent channel joint 21 inserts in fixation clamp 3, make to assemble step 22 and pass pilot hole 32, then sheath pipe 1 and convergent divergent channel 2 are coaxially assembled, make the hasp 31 of fixation clamp 3 and the boss 12 on sheath pipe joint 11 think clamping, thereby sheath pipe 1 is fixedly connected with convergent divergent channel 2.For convenience of medical worker, use, handle 6 can be connected on pallet 5, facilitate medical worker to grip.
Compared with prior art, this novel ureter guiding sheath is by the interior reinforcement unit that arranges of sheath pipe 1, improve intensity and the toughness of this guiding sheath, also be provided with handle 6 simultaneously, facilitate medical worker to operate, on sheath pipe 1 and convergent divergent channel 2, be also provided with hydrophilic coating in addition, improved safety in utilization and comfortableness, possess simple in structure, the advantage that result of use is good.
Specific embodiment described herein is only to the explanation for example of this utility model spirit.This utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (8)
1. a novel ureter is guided sheath, comprise sheath pipe (1) and be close to sheath pipe (1) inwall setting and the convergent divergent channel (2) coaxial with sheath pipe (1), described sheath pipe (1) one end is provided with sheath pipe joint (11), described convergent divergent channel (2) one end is provided with convergent divergent channel joint (21), described sheath pipe joint (11) and convergent divergent channel joint (21) are fixed together by fixation clamp (3), it is characterized in that, described sheath pipe (1) inwall is provided with the reinforcement unit that prevents sheath pipe (1) distortion.
2. novel ureter guiding sheath according to claim 1, is characterized in that, seal wire (4) is strengthened for being inlaid in the rustless steel of sheath pipe (1) inwall in described reinforcement unit.
3. novel ureter guiding sheath according to claim 1, is characterized in that, described reinforcement unit is for being inlaid in the rustless steel reinforcement of sheath pipe (1) inwall.
4. according to the novel ureter guiding sheath described in claim 1 or 2 or 3, it is characterized in that, on described sheath pipe joint (11), removably connect and be useful on the handle (6) of gripping.
5. according to the novel ureter guiding sheath described in claim 1 or 2 or 3, it is characterized in that, described convergent divergent channel (2) outer wall and sheath pipe (1) inwall are coated with hydrophilic coating.
6. novel ureter according to claim 4 is guided sheath, it is characterized in that, described sheath pipe joint (11) end is provided with the pallet (5) that is bowl-shape, described pallet (5) is provided with for the Access Division (51) with handle (6) assembling, and described handle (6) end is provided with the blocked hole (61) matching with Access Division (51).
7. according to the novel ureter guiding sheath described in claim 1 or 2 or 3, it is characterized in that, the front end of described sheath pipe joint (11) is also provided with for connecting external fixation device or the fixing connecting hole of medical apparatus and instruments (7).
8. according to the novel ureter guiding sheath described in claim 1 or 2 or 3, it is characterized in that, described sheath pipe joint (11) is provided with boss (12), described fixation clamp (3) is provided with the hasp (31) snapping onto on boss (12), described convergent divergent channel joint (21) one end communicates with convergent divergent channel (2), the other end is provided with assembling step (22), and described fixation clamp (3) is provided with the pilot hole (32) for convergent divergent channel joint (21) clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420303723.4U CN203935497U (en) | 2014-06-04 | 2014-06-04 | A kind of novel ureter guiding sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420303723.4U CN203935497U (en) | 2014-06-04 | 2014-06-04 | A kind of novel ureter guiding sheath |
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| Publication Number | Publication Date |
|---|---|
| CN203935497U true CN203935497U (en) | 2014-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420303723.4U Expired - Fee Related CN203935497U (en) | 2014-06-04 | 2014-06-04 | A kind of novel ureter guiding sheath |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106345039A (en) * | 2016-09-21 | 2017-01-25 | 河北医科大学第三医院 | Urinary catheter introduction apparatus |
| CN106730258A (en) * | 2017-01-13 | 2017-05-31 | 方国九 | Catheter and spring part easy to plug |
| CN107550565A (en) * | 2017-10-13 | 2018-01-09 | 海盐康源医疗器械有限公司 | A kind of flexible ureter sheath |
| CN108211086A (en) * | 2018-02-26 | 2018-06-29 | 史军 | A kind of flexible sheath and ureter guide sheath component |
| CN109498108A (en) * | 2018-12-10 | 2019-03-22 | 兰州西脉记忆合金股份有限公司 | A kind of ureter guide sheath |
| CN109821148A (en) * | 2019-04-03 | 2019-05-31 | 广西医师协会 | A kind of ureter sheath rotary joint |
| CN113041478A (en) * | 2021-04-16 | 2021-06-29 | 深圳麦普奇医疗科技有限公司 | Ureter guide sheath |
| CN114733048A (en) * | 2022-04-11 | 2022-07-12 | 重庆市人民医院 | Transurethral prostate treatment device |
-
2014
- 2014-06-04 CN CN201420303723.4U patent/CN203935497U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106345039A (en) * | 2016-09-21 | 2017-01-25 | 河北医科大学第三医院 | Urinary catheter introduction apparatus |
| CN106345039B (en) * | 2016-09-21 | 2023-02-07 | 河北医科大学第三医院 | Catheter introduction instrument |
| CN106730258A (en) * | 2017-01-13 | 2017-05-31 | 方国九 | Catheter and spring part easy to plug |
| CN107550565A (en) * | 2017-10-13 | 2018-01-09 | 海盐康源医疗器械有限公司 | A kind of flexible ureter sheath |
| CN108211086A (en) * | 2018-02-26 | 2018-06-29 | 史军 | A kind of flexible sheath and ureter guide sheath component |
| CN109498108A (en) * | 2018-12-10 | 2019-03-22 | 兰州西脉记忆合金股份有限公司 | A kind of ureter guide sheath |
| CN109821148A (en) * | 2019-04-03 | 2019-05-31 | 广西医师协会 | A kind of ureter sheath rotary joint |
| CN113041478A (en) * | 2021-04-16 | 2021-06-29 | 深圳麦普奇医疗科技有限公司 | Ureter guide sheath |
| CN114733048A (en) * | 2022-04-11 | 2022-07-12 | 重庆市人民医院 | Transurethral prostate treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20160604 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |