CN109938811B - Minimally invasive visual expansion suction sheath - Google Patents
Minimally invasive visual expansion suction sheath Download PDFInfo
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- CN109938811B CN109938811B CN201910259919.5A CN201910259919A CN109938811B CN 109938811 B CN109938811 B CN 109938811B CN 201910259919 A CN201910259919 A CN 201910259919A CN 109938811 B CN109938811 B CN 109938811B
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- sheath
- expansion
- joint
- channel
- tube
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- 230000000007 visual effect Effects 0.000 title claims abstract description 23
- 239000013307 optical fiber Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 230000010339 dilation Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- 206010038460 Renal haemorrhage Diseases 0.000 abstract description 3
- 206010046528 Urinary bladder haemorrhage Diseases 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 20
- 239000004575 stone Substances 0.000 description 8
- 238000000605 extraction Methods 0.000 description 5
- 229910052689 Holmium Inorganic materials 0.000 description 3
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 description 3
- 230000000916 dilatatory effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000008223 sterile water Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 208000000913 Kidney Calculi Diseases 0.000 description 1
- 206010029148 Nephrolithiasis Diseases 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 208000006568 Urinary Bladder Calculi Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009212 extracorporeal shock wave lithotripsy Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
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- Endoscopes (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a minimally invasive visual expansion suction sheath which comprises a sheath tube, an expansion tube, a sheath tube joint, an expansion tube joint and a screwing joint, wherein the expansion tube is positioned in the sheath tube and is coaxial with the sheath tube, the sheath tube joint and the expansion tube joint are connected and fixed through the screwing joint, one end of the sheath tube is fixed on a main channel of the sheath tube joint, one end of the expansion tube is in a truncated cone shape, the other end of the expansion tube is fixed on the main channel of the expansion tube joint, a first optical fiber channel and a first guide wire channel in the expansion tube are respectively communicated with a second optical fiber channel and a second guide wire channel in the expansion tube joint, and when the expansion puncture is carried out, a visual image system can be used for effectively positioning the puncture expansion, so that medical accidents such as renal hemorrhage and bladder hemorrhage caused by deep puncture in conventional operation are avoided.
Description
[ field of technology ]
The invention relates to the technical field of medical instruments, in particular to the technical field of minimally invasive visual expansion suction sheaths.
[ background Art ]
The traditional methods for treating kidney stones include incision stone extraction, extracorporeal lithotripsy and percutaneous nephroscope stone extraction, and the traditional methods for treating bladder stones include extracorporeal shock wave lithotripsy, suprapubic bladder operation stone extraction and the like. The open method of "open and stone extraction" is to make a large incision on the stone part and then extract the stone, which has the disadvantages of large damage, more bleeding, serious pain and slow recovery. After the operation, the patient usually needs to be hospitalized for about 7 days, because the operation incision is large, the skin is not attractive, and the physical strength of the patient after the operation is greatly affected. Compared with open operation, percutaneous nephroscope/ureteroscope has the advantages of small damage, light pain, thorough stone extraction, quick recovery and the like. The incision at the stone site is usually less than 1cm, and the muscle is not incised, so that the appearance is not affected, the labor force is hardly affected after the operation, and the patient can be discharged after the operation in 2-3 days.
However, the conventional percutaneous nephroscope/ureteroscope has defects, such as medical accidents, such as renal hemorrhage, caused by too deep puncture, because the conventional dilating sheath cannot observe the advancing position of the dilating sheath when the percutaneous nephroscope/ureteroscope is dilated after the puncture is finished.
[ invention ]
The invention aims to solve the problems in the prior art, and provides a minimally invasive visual expansion suction sheath which is simple in structure, convenient to operate and capable of being widely popularized in clinical experiments.
In order to achieve the above purpose, the invention provides a minimally invasive visual expansion suction sheath, which comprises a sheath tube, an expansion tube, a sheath tube joint, an expansion tube joint and a screwing joint, wherein the expansion tube is positioned in the sheath tube and is coaxial with the sheath tube, the sheath tube joint and the expansion tube joint are fixedly connected through the screwing joint, one end of the sheath tube is fixed on a main channel of the sheath tube joint, one end of the expansion tube is in a cone frustum shape, the other end of the expansion tube is fixed on the main channel of the expansion tube joint, and a first optical fiber channel and a first guide wire channel in the expansion tube are respectively communicated with a second optical fiber channel and a second guide wire channel in the expansion tube joint.
Preferably, the expansion pipe joint is provided with a liquid injection channel communicated with a second optical fiber channel, the second optical fiber channel, a second guide wire channel and the liquid injection channel are communicated with a main channel of the expansion pipe joint, the sheath pipe joint is provided with a negative pressure suction channel and a negative pressure adjusting channel communicated with the main channel of the sheath pipe joint, and the negative pressure suction channel is provided with a plurality of negative pressure suction holes.
Preferably, caps are fixed at the ends of the negative pressure regulating channel and the liquid injection channel.
Preferably, a check valve is provided on the second guide wire channel.
Preferably, the sheath tube and the sheath tube joint are detachably connected, and the expansion tube joint are detachably connected.
Preferably, the sheath tube is provided with a plurality of handles close to the sheath tube joint, and the end parts of the handles are fixed with fastening caps through fixing rings.
Preferably, the cross sections of the first optical fiber channel and the first guide wire channel are circular, the outlet of the first optical fiber channel is positioned on a circular table surface of the conical end of the expansion pipe, and the outlet of the first guide wire channel is positioned on an inclined surface of the conical end of the expansion pipe.
Preferably, a groove is arranged on the inclined plane of the conical truncated end of the expansion tube, and the groove is positioned between the first optical fiber channel and the first guide wire channel.
Preferably, the sheath tube joint is provided with a marking ring.
Preferably, the expansion pipe connector is provided with a first limit groove for limiting the screwing connector, the screwing connector is provided with threads and taper, the expansion pipe connector further comprises a sealing connector provided with the threads, the taper and a second limit groove, a sealing plug is clamped in the second limit groove in a limit manner, and the taper is 6:100 luer taper.
The invention has the beneficial effects that:
when the puncture is performed in an expanding way, the visual image system can be used for effectively positioning the puncture expansion, and medical accidents such as renal hemorrhage, bladder hemorrhage and the like caused by deep puncture in the conventional operation are avoided.
The features and advantages of the present invention will be described in detail by way of example with reference to the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a front cross-sectional view of a visible expansion process
FIG. 2 is an enlarged schematic view of the truncated cone end of the dilation tube;
figure 3 is a front cross-sectional view of the sealing joint and the sealing plug;
fig. 4 is a front sectional view in a state of the negative pressure suction process;
fig. 5 is a front cross-sectional view of the procedure state after the operation is completed.
In the figure: 1-sheath, 11-handle, 2-expansion tube, 21-first fiber channel, 22-first guide wire channel, 23-groove, 3-sheath connector, 31-negative pressure suction channel, 311-negative pressure suction hole, 32-negative pressure adjustment channel, 4-expansion tube connector, 41-second fiber channel, 42-second guide wire channel, 421-check valve, 43-liquid injection channel, 44-first limit groove, 5-screwing connector, 6-cap, 7-mark ring, 8-fastening cap, 81-fixing ring, 9-sealing connector, 91-sealing plug and 92-second limit groove.
[ detailed description ] of the invention
Referring to fig. 1 to 5, the minimally invasive visual expansion suction sheath of the invention comprises a sheath tube 1, an expansion tube 2, a sheath tube joint 3, an expansion tube joint 4 and a screwing joint 5, wherein the expansion tube 2 is positioned in the sheath tube 1 and is coaxial with the sheath tube 1, the sheath tube joint 3 and the expansion tube joint 4 are fixedly connected through the screwing joint 5, one end of the sheath tube 1 is fixed on a main channel of the sheath tube joint 3, one end of the expansion tube 2 is in a cone frustum shape, the other end is fixed on the main channel of the expansion tube joint 4, a first optical fiber channel 21 and a first guide wire channel 22 in the expansion tube 2 are respectively communicated with a second optical fiber channel 41 and a second guide wire channel 42 in the expansion tube joint 4, an injection liquid channel 43 communicated with the second optical fiber channel 41 is arranged on the expansion tube joint 4, the second optical fiber channel 41, the second guide wire channel 42 and the injection liquid channel 43 are communicated with the main channel of the expansion tube joint 4, the sheath tube joint 3 is provided with a negative pressure suction channel 31 and a negative pressure regulating channel 32 which are communicated with a main channel of the sheath tube joint 3, the negative pressure suction channel 31 is provided with a plurality of negative pressure suction holes 311, the end parts of the negative pressure regulating channel 32 and a liquid injection channel 43 are fixedly provided with caps 6, the second guide wire channel 42 is provided with check valves 421, the sheath tube 1 and the sheath tube joint 3 are detachably connected, the expansion tube 2 and the expansion tube joint 4 are detachably connected, the sheath tube 1 is provided with a plurality of handles 11 which are close to the sheath tube joint 3, the end parts of the handles 11 are fixedly provided with fastening caps 8 through fixing rings 81, the cross sections of the first optical fiber channel 21 and the first guide wire channel 22 are round, the outlet of the first optical fiber channel 21 is positioned on a round table surface of the conical end of the expansion tube 2, the outlet of the first guide wire channel 22 is positioned on the inclined plane of the conical frustum-shaped end of the expansion pipe 2, a groove 23 is formed in the inclined plane of the conical frustum-shaped end of the expansion pipe 2, the groove 23 is positioned between the first optical fiber channel 21 and the first guide wire channel 22, a marking ring 7 is arranged on the sheath pipe joint 3, a first limit groove 44 for limiting the screwing joint 5 is arranged on the expansion pipe joint 4, threads and conicity are arranged on the screwing joint 5, the sealing joint 9 is further provided with threads, conicity and a second limit groove 92, and a sealing plug 91 is clamped in the second limit groove 92 in a limiting mode.
In the working process of the minimally invasive visual expansion suction sheath, the minimally invasive visual expansion suction sheath is divided into a visual expansion process, a negative pressure suction process and a post-operation process (fistulization tube placement process), and the steps are as follows:
1. visual expansion process:
1) The guide wire passes out of the first guide wire channel 22 and along the second guide wire channel 42, and the check valve 421 is in an open state;
2) The optical fiber connected with the display is led in from the second optical fiber channel 41, passes out along the first optical fiber channel 21, and the passing-out position of the optical fiber is flush with the cross section of the tip end of the expansion tube 2, so that the guide wire can be seen through the display;
3) The minimally invasive visual expansion suction sheath expands through the guide wire (the guide wire is along the groove 23 as much as possible), the advancing direction of the guide wire is observed by means of a display connected with the optical fiber, the expansion is stopped when the guide wire expands to the clinical focus position, when the visual field of the optical fiber is not clear, sterile water can be injected through the liquid injection channel 43 for cleaning the field of view, and when the expansion pipe 2 does not completely advance to the focus position, the guide wire can be locked through the check valve 421 when the expansion is stopped temporarily;
4) Retracting the optical fiber;
5) The non-return valve 421 is in the open state and the expansion tube 2 is withdrawn by unscrewing the tightening joint 5 until the visual expansion process is at this point all ended.
2. Negative pressure suction process:
1) Replacing the sealing joint 9 on the sheath joint 3;
2) The holmium laser fiber is led into the sheath tube 1 through the sealing plug 91 and along the channel of the sheath tube 1 to the focus position;
3) Connecting the negative pressure suction channel 31 to a negative pressure suction system;
4) In the holmium laser operation process, the negative pressure suction system is opened, and when the negative pressure value needs to be regulated in the operation process, the negative pressure value can be regulated through the negative pressure suction hole 311 or the negative pressure regulating channel 32;
5) After the operation is finished, the holmium laser is returned until the negative pressure suction process is finished.
3. Post-operative procedure (fistulization procedure):
1) Pulling the sheath tube joint 3 out of the sheath tube 1;
2) Placing the fistulization tube to a focus position along the sheath tube 1, wherein the sacculus of the fistulization tube must exceed the lumen of the sheath tube 1;
3) Injecting sterile water or normal saline into the sacculus of the fistulization pipe according to the nominal capacity;
4) The two fastening caps 8 are grasped, the sheath tube 1 is torn, the sheath tube 1 is pulled out from the kidney while the sheath tube 1 is torn, the sheath tube 1 is completely divided into two halves, and the whole working process of the whole minimally invasive visual expansion suction sheath is finished at the moment.
The above embodiments are illustrative of the present invention, and not limiting, and any simple modifications of the present invention fall within the scope of the present invention.
Claims (6)
1. A minimally invasive visual dilation suction sheath, characterized in that: the device comprises a sheath tube (1), an expansion tube (2), a sheath tube joint (3), an expansion tube joint (4) and a screwing joint (5), wherein the expansion tube (2) is positioned inside the sheath tube (1) and is coaxial with the sheath tube (1), the sheath tube joint (3) and the expansion tube joint (4) are fixedly connected through the screwing joint (5), one end of the sheath tube (1) is fixedly arranged on a main channel of the sheath tube joint (3), one end of the expansion tube (2) is in a truncated cone shape, the other end of the expansion tube (2) is fixedly arranged on the main channel of the expansion tube joint (4), a first optical fiber channel (21) and a first guide wire channel (22) in the expansion tube (2) are respectively communicated with a second optical fiber channel (41) and a second guide wire channel (42) in the expansion tube joint (4), a liquid injection channel (43) which is communicated with the second optical fiber channel (41) is arranged on the expansion tube joint (4), suction holes (31) which are communicated with the suction tube joint (3) are arranged on the suction tube joint (3) and a plurality of suction tube joint (31) which are communicated with a negative pressure adjusting channel (32), the utility model discloses a high-performance optical fiber splice, including sheath pipe (1) and sheath coupling (3), connect can be dismantled to sheath pipe (2) and expansion coupling (4), be equipped with recess (23) on the inclined plane of expansion pipe (2) truncated cone shape end, recess (23) are located between first fibre channel (21) and first seal wire passageway (22), be equipped with first spacing groove (44) of spacing screwed joint (5) on expansion coupling (4), be equipped with screw thread and tapering on screwed joint (5), still including sealing joint (9) that are equipped with screw thread, tapering and second spacing groove (92), spacing buckle has sealing plug (91) in second spacing groove (92).
2. A minimally invasive visual dilation suction sheath as recited in claim 1, wherein: the end parts of the negative pressure regulating channel (32) and the liquid injection channel (43) are fixed with a cap (6).
3. A minimally invasive visual dilation suction sheath as recited in claim 1, wherein: the second guide wire channel (42) is provided with a check valve (421).
4. A minimally invasive visual dilation suction sheath as recited in claim 1, wherein: the sheath tube (1) is provided with a plurality of handles (11) which are close to the sheath tube joint (3), and the end parts of the handles (11) are fixed with fastening caps (8) through fixing rings (81).
5. A minimally invasive visual dilation suction sheath as recited in claim 1, wherein: the cross sections of the first optical fiber channel (21) and the first guide wire channel (22) are circular, the outlet of the first optical fiber channel (21) is positioned on a circular table-board of the conical frustum-shaped end of the expansion pipe (2), and the outlet of the first guide wire channel (22) is positioned on an inclined plane of the conical frustum-shaped end of the expansion pipe (2).
6. A minimally invasive visual dilation suction sheath as recited in claim 1, wherein: the sheath pipe joint (3) is provided with a marking ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910259919.5A CN109938811B (en) | 2019-04-02 | 2019-04-02 | Minimally invasive visual expansion suction sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910259919.5A CN109938811B (en) | 2019-04-02 | 2019-04-02 | Minimally invasive visual expansion suction sheath |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109938811A CN109938811A (en) | 2019-06-28 |
| CN109938811B true CN109938811B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910259919.5A Active CN109938811B (en) | 2019-04-02 | 2019-04-02 | Minimally invasive visual expansion suction sheath |
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| Country | Link |
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| CN (1) | CN109938811B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211325226U (en) * | 2019-10-12 | 2020-08-25 | 山东冠龙医疗用品有限公司 | Multi-channel working sleeve |
| CN112493979A (en) * | 2020-12-31 | 2021-03-16 | 新疆维吾尔自治区人民医院 | Disposable visible percutaneous nephroscope special sheath |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107374698A (en) * | 2017-07-11 | 2017-11-24 | 程跃 | A kind of percutaneous nephrolithy visually expands sheath |
| CN108992144A (en) * | 2018-08-23 | 2018-12-14 | 武汉佑康科技有限公司 | A kind of expansion sheath and the endoscope with expansion sheath |
| CN209996439U (en) * | 2019-04-02 | 2020-01-31 | 海盐康源医疗器械有限公司 | minimally invasive visual expansion suction sheath |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105963809B (en) * | 2016-05-26 | 2018-11-13 | 广州医科大学附属第一医院 | A kind of percutaneous puncture visually rinses attraction system and its application method |
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2019
- 2019-04-02 CN CN201910259919.5A patent/CN109938811B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107374698A (en) * | 2017-07-11 | 2017-11-24 | 程跃 | A kind of percutaneous nephrolithy visually expands sheath |
| CN108992144A (en) * | 2018-08-23 | 2018-12-14 | 武汉佑康科技有限公司 | A kind of expansion sheath and the endoscope with expansion sheath |
| CN209996439U (en) * | 2019-04-02 | 2020-01-31 | 海盐康源医疗器械有限公司 | minimally invasive visual expansion suction sheath |
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| CN109938811A (en) | 2019-06-28 |
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