CN204932536U - Ureteral catheter assembly - Google Patents
Ureteral catheter assembly Download PDFInfo
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- CN204932536U CN204932536U CN201520190692.0U CN201520190692U CN204932536U CN 204932536 U CN204932536 U CN 204932536U CN 201520190692 U CN201520190692 U CN 201520190692U CN 204932536 U CN204932536 U CN 204932536U
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- ureteral catheter
- pressure
- renal
- catheter assembly
- hydraulic pressure
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 210000000244 kidney pelvis Anatomy 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000007924 injection Substances 0.000 claims abstract description 9
- 238000001802 infusion Methods 0.000 claims description 8
- 210000000626 ureter Anatomy 0.000 claims description 8
- 230000008447 perception Effects 0.000 claims description 3
- 210000003708 urethra Anatomy 0.000 claims description 3
- 210000003932 urinary bladder Anatomy 0.000 claims description 3
- 210000003734 kidney Anatomy 0.000 abstract description 24
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 230000008085 renal dysfunction Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 208000000913 Kidney Calculi Diseases 0.000 description 4
- 206010029148 Nephrolithiasis Diseases 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 210000001624 hip Anatomy 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 206010061688 Barotrauma Diseases 0.000 description 1
- 208000000067 Pyelectasis Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Abstract
A kind of ureteral catheter assembly, comprising: ureteral catheter; Pressure measxurement mechanism, is connected on described ureteral catheter, for measuring the hydraulic pressure in described ureteral catheter.Compared with prior art, the technical program has the following advantages: in PCN operation, ureteral catheter is communicated with renal pelvis, and Renal pelvic pressure can be measured in real time by pressure measxurement mechanism, can know whether Renal pelvic pressure is in allowable range according to the Renal pelvic pressure recorded in real time.If Renal pelvic pressure is in exceed allowed band, can regulate by the water injection rate of kidney mirror to renal pelvis according to Renal pelvic pressure, and by the water in renal pelvis by kidney mirror and the outside displacement of outer sheath, maintenance Renal pelvic pressure and ambient pressure balance.This can be avoided the problem occurring that Renal pelvic pressure is too high, effectively prevents the harm such as the renal dysfunction caused because Renal pelvic pressure is too high.
Description
Technical field
This utility model relates to medical instruments field, particularly a kind of ureteral catheter assembly.
Background technology
Percutaneous nephrolithotomy is a kind of Minimally Invasive Surgery for the treatment of renal calculus, sets up a passage from skin to kidney exactly at waist, by this passage, kidney mirror is inserted kidney, utilizes laser, the rock breaking tool such as ultrasonic, renal calculus is smashed taking-up.
The method setting up kidney mirror passage at waist is:
First, a ureteral catheter per urethra, bladder, ureter are stretched in the renal pelvis of kidney;
Then, poured water in renal pelvis by ureteral catheter, kidney is expanded;
And then, use seal wire through skin at waist and enter kidney, the kidney density of expansion increases, and is conducive to seal wire and penetrates;
Afterwards, get an outer sheath, outer sheath is passed in one end that seal wire is positioned at outside human body, and move outer sheath along seal wire and arrive renal pelvis to outer sheath through skin, so far outer sheath is as kidney mirror passage;
Finally take out seal wire.
In kidney mirror rubble process, ureteral catheter can continue to be retained in ureter.On the one hand, ureteral catheter plays ponding, prevents the fill water in renal pelvis from discharging through ureter, to affect Renal pelvic pressure.On the other hand, because ureteral catheter is blocked in ureter and renal pelvis junction, ureteral catheter forms blocking for preventing relatively large renal calculus to be deposited in ureter.
In kidney mirror rubble process, need to continue in renal pelvis water flowing by kidney mirror and by outer sheath outside draining from renal pelvis, to maintain Renal pelvic pressure and ambient pressure balances.But, due to can not Real-Time Monitoring Renal pelvic pressure, there is the problem that Renal pelvic pressure is too high or too low.Such as, renal calculus is crashed to pieces draining in passage that the calculus granule, the powder that are formed can hinder between outer sheath and kidney mirror, causes displacement accurately not control, causes Renal pelvic pressure to raise.If Renal pelvic pressure is too high, renal dysfunction can be caused, and gravel particle and powder can infiltrate kidney and cause infection.
Utility model content
The problem that this utility model solves is, can not Real-Time Monitoring Renal pelvic pressure in existing percutaneous nephrolithotomy.
For solving the problem, this utility model provides a kind of ureteral catheter assembly, and this ureteral catheter assembly comprises:
Ureteral catheter;
Pressure measxurement mechanism, is connected on described ureteral catheter, for measuring the hydraulic pressure in described ureteral catheter.
Alternatively, described pressure measxurement mechanism comprises: shell;
Be fixedly arranged on the pressure transducer in described shell, there is hydraulic pressure sense part;
One end of described ureteral catheter is connected with shell, and makes this end mouth of pipe be communicated with described hydraulic pressure sense part, and described hydraulic pressure sense part is used for hydraulic pressure in ureteral catheter described in perception.
Alternatively, in described shell, be provided with cavity, described hydraulic pressure sense part is positioned at described cavity, the described mouth of pipe of described ureteral catheter and described cavity connects.
Alternatively, described shell is provided with the first connection tube being communicated with described cavity;
Described mouth of pipe one end of described ureteral catheter is connected with described first connection tube.
Alternatively, the described mouth of pipe of described ureteral catheter is connected to described first connection tube by infusion device plug.
Alternatively, also comprise: water bag, with described cavity connects.
Alternatively, be provided with the second connection tube being communicated with described cavity on the housing, described water bag is connected with the second connection tube by tube for transfusion.
Alternatively, described tube for transfusion is provided with valve on the passage being communicated with described water bag and described cavity.
Alternatively, the passage of described ureteral catheter connection pressure measxurement mechanism is provided with water injection interface.
Alternatively, described pressure measxurement mechanism also comprises: monitor, is electrically connected with described pressure transducer, for showing the hydraulic pressure that described pressure transducer records.
Compared with prior art, the technical solution of the utility model has the following advantages:
In PCN operation, ureteral catheter is communicated with renal pelvis, in the ureteral catheter that pressure measxurement mechanism records, hydraulic pressure approximates Renal pelvic pressure, therefore renal pelvis can be measured and ureteral catheter is intrinsic pressure in real time by pressure measxurement mechanism, can know whether Renal pelvic pressure is in allowable range according to the Renal pelvic pressure recorded in real time.If Renal pelvic pressure is in exceed allowed band, can regulate by the water injection rate of kidney mirror to renal pelvis according to Renal pelvic pressure, and by the water in renal pelvis by kidney mirror and the outside displacement of outer sheath, maintenance Renal pelvic pressure and ambient pressure balance.This can be avoided the problem occurring that Renal pelvic pressure is too high, effectively prevents the harm such as the renal dysfunction caused because Renal pelvic pressure is too high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the ureteral catheter assembly of this utility model specific embodiment.
Detailed description of the invention
For enabling above-mentioned purpose of the present utility model, feature and advantage more become apparent, and are described in detail specific embodiment of the utility model below in conjunction with accompanying drawing.
With reference to Fig. 1, the ureteral catheter assembly of this example comprises:
Ureteral catheter 1;
Pressure measxurement mechanism 2, is connected on ureteral catheter 1, for measuring the hydraulic pressure in ureteral catheter 1 in percutaneous nephroscope lithotripsy operation;
Monitor 3, is connected with pressure measxurement mechanism 2, for showing the hydraulic pressure numerical value that pressure measxurement mechanism 2 records in real time.
In PCN operation, ureteral catheter 1 per urethra, bladder, ureter stretch in renal pelvis, by ureteral catheter 1 to renal pelvis water filling to expand kidney, the hydraulic pressure of pressure measxurement mechanism 2 in operation process in Real-Time Monitoring ureteral catheter 1, this hydraulic pressure approximates Renal pelvic pressure.Can know whether Renal pelvic pressure is in allowable range according to the Renal pelvic pressure recorded in real time.If Renal pelvic pressure is in exceed allowed band, can regulate by the water injection rate of kidney mirror to renal pelvis according to Renal pelvic pressure, and by the water in renal pelvis by kidney mirror and the outside displacement of outer sheath, maintenance Renal pelvic pressure and ambient pressure balance.Such as, if Renal pelvic pressure is too high, then outwards extract kidney mirror out in time, to increase displacement; If Renal pelvic pressure is too low, then suitably increase from kidney mirror to the water injection rate in renal pelvis, to increase inflow.
By means of pressure measxurement mechanism 2, Renal pelvic pressure can be maintained in real time in allowable range, avoid the problem occurring that Renal pelvic pressure is too high, effectively avoid the harm such as the renal dysfunction caused because Renal pelvic pressure is too high.
The pressure measxurement mechanism 2 of this example comprises: shell 20;
Be fixedly arranged on the pressure transducer 21 in shell 20, have hydraulic pressure sense part 210, shell 20 is for the protection of pressure transducer 21;
One end of ureteral catheter 1 is connected with shell 20, and make this end mouth of pipe be communicated with hydraulic pressure sense part 210, hydraulic pressure in such ureteral catheter 1 acts directly in hydraulic pressure sense part 210, hydraulic pressure sense part 210 is for hydraulic pressure in perception ureteral catheter 1, and pressure transducer 21 carries out electricity process to this perceptual signal and obtains the signal of telecommunication afterwards.
According to operation principle, the type for pressure transducer 21 can select deposition tube impedance diffusion pressure sensor, piezoelectric pressure indicator or capacitance-type pressure transducer.Wherein, deposition tube impedance diffusion pressure sensor forms semiconductor strain pressure at sheet surface, make thin metal plate by external force (pressure) and produce Piezoelectric Impedance effect, thus making the change of impedance convert the signal of telecommunication to, now thin slice is hydraulic pressure sense part 210.Capacitance-type pressure transducer is that the movable extremely relative of the fixed pole of glass and silicon is formed electric capacity, convert the change making movable pole be out of shape the static capacity produced by external force (pressure) to electric signal, now movable very hydraulic pressure sense part 210.
By contrast, piezoelectric pressure indicator is the sensor that the piezoelectric effect produced after utilizing some dielectric medium stress is made.When so-called piezoelectric effect refers to that deformation (comprising bending and telescopic shape change) occurs being subject to the External Force Acting of a direction some electrolyte, due to the polarization phenomena of internal charge, the phenomenon of electric charge can be produced on its surface.Piezoelectric pressure indicator is primarily of body, diaphragm and piezoelectric element composition, and wherein diaphragm is as hydraulic pressure sense part 210.Piezoelectric element is supported on body, receives the hydraulic pressure that diaphragm perceives, and after electricity process, export the signal of telecommunication becoming certain relation with by measuring pressure.
With reference to Fig. 1, for realizing hydraulic pressure sense part 210 and the hydraulic pressure that can fully contact in ureteral catheter 1, cavity 200 is provided with in shell 20, hydraulic pressure sense part 210 is positioned at cavity 200, the corresponding mouth of pipe of ureteral catheter 1 is communicated with cavity 200, water in such ureteral catheter 1 can be full of cavity 200, to produce pressure effect to hydraulic pressure sense part 210.
Ureteral catheter 1 with the connected mode of cavity 200 is: shell 20 is provided with the first connection tube 201 being communicated with cavity 200; Corresponding mouth of pipe one end of ureteral catheter 1 is connected with the first connection tube 201.Wherein the corresponding mouth of pipe of ureteral catheter 1 is connected to the first connection tube 201 by infusion device plug 11.As variation, the first connection tube is designed to infusion device plug, to connect ureteral catheter.Infusion device plug make ureteral catheter 1 and shell 20 easy for installation.In PCN operation, when by ureteral catheter 1 in renal pelvis during fill water, infusion device plug 11 can be pulled up, and by this infusion device plug 11 to water filling in ureteral catheter 1, again infusion device plug 11 is connected with the first connection tube 201 after treating water filling.
Except above-mentioned waterflood project, can also be: with reference to Fig. 1 the passage being communicated with cavity 200 at ureteral catheter 1 is provided with water injection interface 12, by water injection interface 12 to water filling in catheter of transfusion system 1, after treating water filling, interface 12 is sealed.In use water injection interface 12 the injecting process, water also can flow into cavity 200, and such pressure transducer 21, with regard to Renal pelvic pressure change in energy Real-Time Monitoring the injecting process, reaches after preset value until Renal pelvic pressure and stops water filling.By implementing monitoring, the problem that the excessive pyelectasis caused of water filling is excessive or the not enough kidney expansion caused of water filling is not enough can be avoided.
In addition, with reference to Fig. 1, the ureter assembly of this example also comprises: water bag 4, is communicated with cavity 200 by tube for transfusion 40.The effect of water bag 4 is: the air on the one hand in the front-seat absolutely empty chamber 200 of pressure measurement, avoids the hydraulic pressure value that effects of air pressure records; On the other hand, in operation process, pressurizeed by water bag 4, the water in renal pelvis can be avoided to be refluxed by ureteral catheter 1, and maintain Renal pelvic pressure by water bag 4 is auxiliary.
To this, the passage being communicated with water bag 4 and cavity 200 at tube for transfusion 40 is provided with valve 400, by ureteral catheter 1 in the injecting process in renal pelvis, valve-off 400; In operation process, open valve 400 to be pressurizeed by water bag 4.
It should be noted that, the monitor 3 of the present embodiment can match with pressure measxurement mechanism 2, as a part for ureteral catheter assembly.In addition, can also be: according to surgical application that the pressure transducer 21 of pressure measxurement mechanism 2 is electrically connected to operation monitor.
Although this utility model discloses as above, this utility model is not defined in this.Any those skilled in the art, not departing from spirit and scope of the present utility model, all can make various changes or modifications, and therefore protection domain of the present utility model should be as the criterion with claim limited range.
Claims (9)
1. a ureteral catheter assembly, is characterized in that, comprising:
Ureteral catheter, for per urethra, bladder, ureter stretch in renal pelvis successively;
Pressure measxurement mechanism, is connected on described ureteral catheter;
Described pressure measxurement mechanism comprises:
Shell;
Be fixedly arranged on the pressure transducer in described shell, have hydraulic pressure sense part, one end of described ureteral catheter is connected with shell, and makes this end mouth of pipe be communicated with described hydraulic pressure sense part, and described hydraulic pressure sense part is used for hydraulic pressure in ureteral catheter described in perception.
2. ureteral catheter assembly as claimed in claim 1, it is characterized in that, in described shell, be provided with cavity, described hydraulic pressure sense part is positioned at described cavity, the described mouth of pipe of described ureteral catheter and described cavity connects.
3. ureteral catheter assembly as claimed in claim 2, is characterized in that, described shell is provided with the first connection tube being communicated with described cavity;
Described mouth of pipe one end of described ureteral catheter is connected with described first connection tube.
4. ureteral catheter assembly as claimed in claim 3, it is characterized in that, the described mouth of pipe of described ureteral catheter is connected to described first connection tube by infusion device plug.
5. ureteral catheter assembly as claimed in claim 2, is characterized in that, also comprise: water bag, with described cavity connects.
6. ureteral catheter assembly as claimed in claim 5, is characterized in that, be provided with the second connection tube being communicated with described cavity on the housing, described water bag is connected with the second connection tube by tube for transfusion.
7. ureteral catheter assembly as claimed in claim 6, is characterized in that, described tube for transfusion is provided with valve on the passage being communicated with described water bag and described cavity.
8. ureteral catheter assembly as claimed in claim 1, is characterized in that, the passage of described ureteral catheter connection pressure measxurement mechanism is provided with water injection interface.
9. ureteral catheter assembly as claimed in claim 1, it is characterized in that, described pressure measxurement mechanism also comprises: monitor, is electrically connected with described pressure transducer, for showing the hydraulic pressure that described pressure transducer records.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520190692.0U CN204932536U (en) | 2015-03-31 | 2015-03-31 | Ureteral catheter assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520190692.0U CN204932536U (en) | 2015-03-31 | 2015-03-31 | Ureteral catheter assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204932536U true CN204932536U (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520190692.0U Active CN204932536U (en) | 2015-03-31 | 2015-03-31 | Ureteral catheter assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN204932536U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111281369A (en) * | 2020-03-18 | 2020-06-16 | 中国人民解放军南部战区总医院 | Pressure measuring catheter in renal pelvis |
| CN112401833A (en) * | 2020-10-12 | 2021-02-26 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Renal pelvis catheter with pressure measurement |
| CN114176552A (en) * | 2021-12-28 | 2022-03-15 | 中国人民解放军陆军特色医学中心 | Abdominal cavity pressure measuring device with exhaust function |
-
2015
- 2015-03-31 CN CN201520190692.0U patent/CN204932536U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111281369A (en) * | 2020-03-18 | 2020-06-16 | 中国人民解放军南部战区总医院 | Pressure measuring catheter in renal pelvis |
| CN112401833A (en) * | 2020-10-12 | 2021-02-26 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Renal pelvis catheter with pressure measurement |
| CN114176552A (en) * | 2021-12-28 | 2022-03-15 | 中国人民解放军陆军特色医学中心 | Abdominal cavity pressure measuring device with exhaust function |
| CN114176552B (en) * | 2021-12-28 | 2023-10-03 | 中国人民解放军陆军特色医学中心 | Abdominal cavity pressure measuring device with exhaust function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Dingshi Machinery Manufacturing Co.,Ltd. Assignor: SHANGHAI RAYKEEN LASER TECHNOLOGY CO.,LTD. Contract record no.: X2022310000147 Denomination of utility model: Ureteral catheter assembly Granted publication date: 20160106 License type: Common License Record date: 20221008 |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Jiangsu Dingshi Machinery Manufacturing Co.,Ltd. Assignor: SHANGHAI RAYKEEN LASER TECHNOLOGY CO.,LTD. Contract record no.: X2022310000147 Date of cancellation: 20240412 |