CN113398441A - Cleanable surgical drainage tube and anti-blocking drainage method - Google Patents
Cleanable surgical drainage tube and anti-blocking drainage method Download PDFInfo
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- CN113398441A CN113398441A CN202110819672.5A CN202110819672A CN113398441A CN 113398441 A CN113398441 A CN 113398441A CN 202110819672 A CN202110819672 A CN 202110819672A CN 113398441 A CN113398441 A CN 113398441A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1002—Balloon catheters characterised by balloon shape
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1018—Balloon inflating or inflation-control devices
- A61M25/10181—Means for forcing inflation fluid into the balloon
- A61M25/10183—Compressible bulbs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M2025/0019—Cleaning catheters or the like, e.g. for reuse of the device, for avoiding replacement
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- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
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- Engineering & Computer Science (AREA)
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- Child & Adolescent Psychology (AREA)
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Abstract
The invention discloses a cleanable surgical drainage tube and an anti-clogging drainage method, the cleanable surgical drainage tube comprises a tube body and a blockage cleaning assembly, the blockage cleaning assembly comprises an air bag and an inflation tube communicated with the air bag, the air bag is in an inflation expansion state and a deflation contraction state, when the drainage tube is used, one end of the tube body extends into a body cavity, the air bag is arranged at one end of the tube body extending into the body cavity, and the inflation tube extends to the other end along the tube body and penetrates out of the tube body from the other end. According to the drainage tube, the air bag is arranged in the drainage tube and connected with the inflation tube, the air bag is inflated and deflated, when the drainage tube is normally used, the air bag is in an deflation contraction state, the normal drainage process is not influenced, when the drainage tube is blocked, the air bag is inflated from the outside through the inflation tube, the air bag is filled in the drainage tube, the inflation tube is pulled to drive the air bag to move outwards to push out the blocking object, and then the blocking object is sent into the interior again after being deflated.
Description
Technical Field
The invention relates to the technical field of surgical instruments, in particular to a cleanable surgical drainage tube and an anti-blocking drainage method.
Background
In clinical surgery, the body which drains the seepage, the oozing blood and other liquids of the surgical wound to the outside is called as a drainage tube, the postoperative infection and the wound healing are prevented from being influenced, the common drainage tube is a transparent silicone tube, the seepage, the oozing blood and other liquids in the body are drained to the outside along a pipeline, or drainage negative pressure is matched for auxiliary drainage, but in the drainage process, human tissues, sticky substances, floccules and the like exist in the drainage object, the silicone drainage tube is easy to block, the drainage is not smooth, the secondary abdominal cavity infection is caused, timely cleaning can not be carried out after the blockage occurs, only a new drainage tube can be replaced, but the early postoperative is generated, the sinus tract around the drainage tube is not formed, and the original drainage tube can not be taken out and then replaced by the new drainage tube.
Disclosure of Invention
The invention aims to overcome the defects, provides a cleanable surgical drainage tube, and provides an anti-blocking drainage method using the drainage tube, wherein when the drainage tube is blocked by sticky matters and floccules in the drainage process, the blockage can be cleaned, so that the drainage tube is kept in a smooth state.
The technical scheme adopted by the invention is as follows:
a cleanable surgical drainage tube comprises a tube body and a blockage clearing assembly, wherein the blockage clearing assembly comprises an air bag and an inflation tube communicated with the air bag, the air bag is in an inflation expansion state and a deflation contraction state, when the drainage tube is used, one end of the tube body extends into a body cavity, the air bag is arranged at one end of the tube body extending into the body cavity, the inflation tube extends to the other end along the tube body and penetrates out of the tube body from the other end, when the drainage tube is in the drainage state, the air bag is in the deflation contraction state, when the tube body is blocked, the inflation tube is used for inflating and expanding the air bag to fill a tube cavity of the tube body, the inflation tube is pulled to drive the air bag to move to the outer side end of the tube body from the inner side end of the tube body, and a blocking object is pushed out.
As a further optimization, a linear track for guiding the inflation tube is arranged in the tube body, a cavity body outside the linear track in the tube body is a drainage cavity, the linear track is fixedly arranged on the upper side wall of the tube body, a spacing seam is arranged on one side of the linear track close to the inner cavity of the tube body, and the air bag is located in the drainage cavity and communicated with the inflation tube by crossing the spacing seam.
As a further optimization, the linear track comprises two arc-shaped track plates, concave surfaces of the two track plates are oppositely arranged, the distance between the two track plates is matched with the outer diameter of the inflation tube, the upper ends of the two track plates are fixedly arranged on the side wall of the tube body, and the lower ends of the two track plates are arranged at intervals to form the spacing gap.
In another embodiment, the linear rail of the present invention includes a rail pipe, the lower side of the rail pipe is sliced along the length direction thereof with the gap, and one side of the rail pipe away from the gap is fixedly disposed on the upper side wall of the pipe body.
As a further optimization, an extension pipe is arranged on the pipe wall of the outer side end of the pipe body, the extension pipe is communicated with the pipe body and is arranged on one side of the linear track, the inflation pipe is arranged in the linear track and penetrates from the extension pipe to the outside of the pipe body, and the linear track extends into the extension pipe.
As a further optimization, the extension pipe is provided with a first cover body, the first cover body is connected to the extension pipe through a first anti-lost connecting rope, and the first cover body has a state of sealing the pipe orifice of the extension pipe and a state of not sealing the pipe orifice of the extension pipe.
As a further optimization, the end part of the inflation tube, which is not connected with the air bag, is provided with a second cover body, the second cover body is connected to the inflation tube through a second anti-lost connecting rope, and the second cover body has a state of sealing the opening of the inflation tube and a state of not sealing the opening of the inflation tube.
As a further optimization, the lower side wall of the pipe body is provided with a discharge opening at a position corresponding to the extension pipe, the discharge opening is provided with a third cover body, the third cover body is arranged on the pipe body through a third anti-lost connecting rope, and the third cover body is in a state of being sealed on the discharge opening and a state of not being sealed on the discharge opening.
As a further optimization, the inflation tube is provided with scale marks for marking the depth of the inflation tube extending into the tube body, and the tube wall of one end of the tube body extending into the body cavity is provided with a side hole
The invention also provides an anti-clogging drainage method, which adopts any one of the drainage tubes, and comprises the following steps:
s1, one end of the drainage tube, which is provided with the air bag, is sent into the body cavity;
s2, draining the accumulated liquid in the body cavity to the outside of the body through the drainage tube, and pushing out the blockage through the air bag when the drainage tube is blocked;
s21, inflating the air bag through the inflation tube to expand the air bag;
s22, pulling the inflation tube outwards, driving the air bag to move outwards by the inflation tube, and pushing the blockage to move to the outer side end of the drainage tube by the air bag;
s23, taking the blockage out of the drainage tube by means of a clamping tool;
s24, the air bag is deflated through the inflation tube, the inflation tube is pushed to send the air bag to the inner side end of the drainage tube, and the air bag can be reused when the drainage tube is blocked next time.
The invention has the following advantages:
1. according to the drainage tube, the air bag is arranged in the drainage tube and connected with the inflation tube, the air bag is inflated and deflated, when the drainage tube is normally used, the air bag is in an deflation and contraction state, the normal drainage process is not influenced, when the drainage tube is blocked, the air bag is inflated from the outside through the inflation tube, the air bag is expanded, the inflation tube is pulled to drive the air bag to move outwards to push out a blocking object, then the blocking object is sent into the interior again after the air bag is deflated, and the purpose of clearing the blockage can be achieved, and the drainage tube can be recycled;
2. according to the invention, the linear track is arranged, and can linearly limit and guide the inflation tube and the air bag, so that the inflation tube can convey the air bag in place, and the subsequent blockage cleaning process is ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view showing the deflated state of the balloon;
FIG. 3 is an enlarged schematic view at B of FIG. 1;
FIG. 4 is a schematic cross-sectional view of one of the structures of FIG. 1 taken along line A-A;
fig. 5 is a schematic cross-sectional view of another configuration in the direction a-a of fig. 1.
Wherein: 1. the air bag comprises an air bag body, 2, an inflation pipe, 3, a pipe body, 4, a linear track, 5, an extension pipe, 6, a third cover body, 7, a third anti-loss connecting rope, 8, a first cover body, 9, a first anti-loss connecting rope, 10, a second cover body, 11, a second anti-loss connecting rope, 12, a track plate, 13, a track pipe, 3-1, a discharge port, 3-2 and a side hole.
Detailed Description
The present invention is further described in the following with reference to the drawings and the specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention, and the embodiments and the technical features of the embodiments can be combined with each other without conflict.
It is to be understood that the terms first, second, and the like in the description of the embodiments of the invention are used for distinguishing between the descriptions and not necessarily for describing a sequential or chronological order. The "plurality" in the embodiment of the present invention means two or more.
The term "and/or" in the embodiment of the present invention is only an association relationship describing an associated object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, B exists alone, and A and B exist at the same time. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.
The embodiment provides a cleanable surgical drainage tube, as shown in fig. 1, which comprises a tube body 3 and a blockage clearing assembly, wherein the blockage clearing assembly comprises an air bag 1 and an inflation tube communicated with the air bag 1, the air bag 1 has an inflation expansion state and a deflation contraction state, in order to avoid that the air bag 1 and the inflation tube 2 influence the normal drainage process, and limit and guide the inflation tube 2, a linear rail 4 for limiting the inflation tube 2 is arranged in the tube body 3, a cavity body outside the linear rail 4 in the tube body 3 is a drainage cavity, the linear rail 4 is fixedly arranged on the upper side wall of the tube body 3, the position designation of each assembly in the embodiment takes the state of the drainage tube in normal use as a reference standard, and a spacing seam is arranged on one side of the linear rail 4 close to the inner cavity of the tube body 3, and is used for the neck of the air bag 1 to pass through, the utility model discloses a drainage catheter, including body 3, gasbag 1, inflation tube 2, linear track 4, inflation tube 2, inflation tube 3, inflation tube 2, and the length of inflation tube 2 stretching into in the body 3 is provided with the scale on the inflation tube 2, be provided with extension tube 5 on the pipe wall of the outside end of body 3, extension tube 5 with body 3 is linked together, and sets up in one side of linear track 4, and linear track 4 extends to in the extension tube 5, inflation tube 2 passes to outside body 3 in the extension tube 5. When the effusion in the body cavity needs to be drained, one end of the tube body 3 extends into the body cavity, the air bag 1 is arranged at one end of the tube body 3 extending into the body cavity, in order to ensure better drainage effect, a plurality of side holes 3-2 are arranged on the tube wall at one end of the tube body 3 extending into the body cavity, when in the drainage process, the air bag 1 is in a deflation and contraction state, the air bag 1 is prevented from influencing the tube opening of the tube body 3 and causing certain blockage to the tube opening, when the tube body 3 is blocked by pus or tissues and the like in the drainage process, the air bag 1 is inflated through the inflation tube 2 to expand the air bag 1, preferably, the inflation tube 2 is communicated with the air bag 1 through an intermediate piece, the connecting piece can be selected to be a hard material, the connecting piece has good guiding effect after penetrating through a spacing seam, the inflation tube 2 is pulled inwards to drive the air bag 1 to enter the tube body 3, the air bag 1 is filled in the inner wall of the tube body 3, and the air bag 1 is driven to move from the inner side end of the tube body 3 to the outer side end of the tube body 3 by pulling the inflation tube 2, so that the blockage is pushed out. When the air bag 1 is expanded, the cavity of the tube body 3 is prevented from being filled transversely by the air bag 1, and after the air bag 1 is filled completely, negative pressure can be formed behind the air bag 1, so that the air bag is difficult to pull out, and body cavity tissues are damaged by the negative pressure.
In this embodiment, the inflation tube 2 needs to be pushed and pulled, and the inflation tube 2 needs to have better support performance 2, so that the selection of the material of the inflation tube should avoid selecting a material with better ductility and elasticity, and a material with certain support performance, such as a polyurethane material, should select a material with certain support performance, and meanwhile avoid the existence of larger friction between the inflation tube 2 and the linear rail 4, and the material of the linear rail 4 can also be selected as a polyurethane material, and meanwhile, the support performance requirement on the linear rail 4 can be higher, the surface between the inflation tube 2 and the linear rail 4 is smooth, so that the friction between the inflation tube 2 and the linear rail 4 is greatly reduced, the inflation tube 2 can be conveniently pushed and pulled, and certainly, when the airbag 1 and the inflation tube 2 are sent into the tube body 3, the rapid introduction can be carried out by means of a guide wire.
This embodiment straight line track 4 includes two curved track boards 12 of lamella, sets up relatively between the concave surface of two lamella track boards 12, and between two lamella track boards 12 the interval with the external diameter phase-match of gas tube 2, the upper end of two lamella track boards 12 is all fixed to be set up on the lateral wall of body 3, and looks interval setting between the lower extreme of two lamella track boards 12 forms the interval seam.
As another implementation manner of the linear track 4, the linear track 4 includes a track tube 13, the lower side of the track tube 13 is sliced along the length direction thereof with the gap, and one side of the track tube 13 away from the gap is fixedly disposed on the upper side wall of the pipeline.
This embodiment be provided with first lid 8 on the extension pipe 5, first lid 8 is connected on extension pipe 5 through first anti-lost connection rope 9, first lid 8 has the orificial state of sealed extension pipe 5 and the orificial state of unsealed extension pipe 5, when pulling out gas tube 2, can seal extension pipe 5 with first lid 8, uses as ordinary drainage tube. This embodiment the tip that gas tube 2 does not connect the gasbag is provided with second lid 10, and second lid 10 prevents losing through the second and connects rope 11 and connect on gas tube 2, second lid 10 has the orificial state of sealed gas tube 2 and the orificial state of unsealed gas tube 2, when needs keep the state of gasbag 1, with sealed gas tube 2 of second lid 10, sealed gas tube 2 carries out the state and keeps.
In order to facilitate the cleaning of the blockage, in this embodiment, a discharge opening 3-1 is provided at a position of the lower side wall of the tube body 3 corresponding to the extension tube 5, the discharge opening 3-1 is provided in front of the extension tube 5, a third cover body 6 is provided on the discharge opening 3-1, the third cover body 6 is provided on the tube body 3 through a third anti-lost connecting rope 7, the third cover body 6 is in a state of being sealed on the discharge opening 3-1 and in a state of not being sealed on the discharge opening 3-1, when the blockage is pushed out through the air bag 1, the blockage is discharged through the discharge opening 3-1, and the blockage can be taken out by means of a tool such as tweezers.
The embodiment also provides an anti-clogging drainage method based on the drainage tube, which comprises the following steps:
s1, one end of the drainage tube arranged with the air bag 1 is sent into the body cavity;
s2, draining the effusion in the body cavity to the outside of the body through the drainage tube, and pushing out the blockage through the air bag 1 when the drainage tube is blocked; specifically, the process of pushing out the blockage by the balloon 1 includes:
s21, inflating the air bag 1 through the inflation tube 2 to enable the air bag 1 to expand, wherein the tube body 3 cannot be completely filled after the air bag expands;
s22, pulling the inflation tube 2 outwards, driving the air bag 1 to move outwards by the inflation tube 2, and pushing the blockage to move to the outer side end of the drainage tube by the air bag 1 moving along the tube body of the drainage tube;
s23, taking the blockage out of the drainage tube by means of a clamping tool;
s24, the air bag 1 is deflated through the inflation tube 2, the inflation tube 2 is pushed to send the air bag 1 to the inner side end of the drainage tube, and the air bag can be reused when being blocked next time.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. A cleanable surgical drainage tube, comprising: including the body and clear stifled subassembly, clear stifled subassembly includes the gasbag and the gas tube that is linked together with the gasbag, the gasbag has inflation state and gassing shrink state, when using, the one end of body stretches into the coelomic, just the gasbag is arranged in the body and is stretched into the one end in the coelomic, the gas tube is in order to extend to the other end along the body to outside wearing out to the body by the other end, when being in the drainage state, the gasbag is in gassing shrink state, when the body takes place to block, utilizes the gas tube to inflate the gasbag and fills the lumen of body, and the pulling gas tube drives the gasbag and removes the outside end to the body from the medial extremity of body, releases the blockage.
2. The cleanable surgical drain according to claim 1, wherein: the inflatable air bag comprises a tube body, and is characterized in that a linear track used for guiding the inflatable tube is arranged in the tube body, a cavity body outside the linear track in the tube body is a drainage cavity, the linear track is fixedly arranged on the upper side wall of the tube body, a spacing seam is arranged on one side, close to an inner cavity of the tube body, of the linear track, and the air bag is located in the drainage cavity and is communicated with the inflatable tube by crossing the spacing seam.
3. The cleanable surgical drain according to claim 2, wherein: the straight line track includes two curved track boards of lamella, sets up relatively between the concave surface of two lamella track boards, and between two lamella track boards the interval with the external diameter phase-match of gas tube, the upper end of two lamella track boards is all fixed to be set up on the lateral wall of body, and looks interval between the lower extreme of two lamella track boards sets up the formation the interval seam.
4. The cleanable surgical drain according to claim 2, wherein: the straight line track includes the track pipe, the downside of track pipe is sliced along its length direction has the interval seam, and the track pipe is kept away from one side fixed the setting of interval seam and is in on the last lateral wall of body.
5. The cleanable surgical drain according to claim 2, wherein: the inflatable air pipe is characterized in that an extension pipe is arranged on the pipe wall of the outer side end of the pipe body, the extension pipe is communicated with the pipe body and is arranged on one side of the linear track, the inflatable pipe is arranged in the linear track and penetrates out of the pipe body from the interior of the extension pipe, and the linear track extends into the extension pipe.
6. The cleanable surgical drain according to claim 5, wherein: the extension pipe is provided with a first cover body, the first cover body is connected to the extension pipe through a first anti-lost connecting rope, and the first cover body has a state of sealing the opening of the extension pipe and a state of not sealing the opening of the extension pipe.
7. The cleanable surgical drain according to claim 1, wherein: the end part of the inflation tube, which is not connected with the air bag, is provided with a second cover body, the second cover body is connected to the inflation tube through a second anti-lost connecting rope, and the second cover body has a state of sealing the opening of the inflation tube and a state of not sealing the opening of the inflation tube.
8. The cleanable surgical drain according to claim 5, wherein: the lower lateral wall of body is provided with the bin outlet with extending the corresponding position of pipe, be provided with the third lid on the bin outlet, the third lid prevents losing the connection rope through the third and sets up on the body, the third lid exists the state of sealing on the bin outlet and does not seal the state on the bin outlet.
9. The cleanable surgical drain according to claim 5, wherein: the inflatable tube is provided with scale marks for marking the depth of the inflatable tube extending into the tube body, and the tube wall of one end of the tube body extending into the body cavity is provided with a side hole.
10. An anti-clogging drainage method is characterized in that: use of a drain according to any of claims 1-9, said drainage method comprising the steps of:
s1, one end of the drainage tube, which is provided with the air bag, is sent into the body cavity;
s2, draining the accumulated liquid in the body cavity to the outside of the body through the drainage tube, and pushing out the blockage through the air bag when the drainage tube is blocked;
s21, inflating the air bag through the inflation tube to enable the air bag to be in an expansion state;
s22, pulling the inflation tube outwards, driving the air bag to move outwards by the inflation tube, and pushing the blockage to move to the outer side end of the drainage tube by the air bag;
s23, taking the blockage out of the drainage tube by means of a clamping tool;
s24, the air bag is deflated through the inflation tube, the inflation tube is pushed to send the air bag to the inner side end of the drainage tube, and the air bag can be reused when the drainage tube is blocked next time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110819672.5A CN113398441B (en) | 2021-07-20 | 2021-07-20 | Cleanable surgical drainage tube and anti-blocking drainage method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110819672.5A CN113398441B (en) | 2021-07-20 | 2021-07-20 | Cleanable surgical drainage tube and anti-blocking drainage method |
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| Publication Number | Publication Date |
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| CN113398441A true CN113398441A (en) | 2021-09-17 |
| CN113398441B CN113398441B (en) | 2023-03-14 |
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| CN203915740U (en) * | 2014-04-04 | 2014-11-05 | 东莞东华医院有限公司 | Prevent the peritoneal cavity drainage tube stopping up |
| CN104905957A (en) * | 2015-06-30 | 2015-09-16 | 福州创方医药科技有限公司 | Paranasal sinus expansion washing device and application method thereof |
| CN206391345U (en) * | 2016-05-31 | 2017-08-11 | 李坤营 | Bronchoalveolar lavage and lung vomica lavation injection foley's tube |
| CN206261929U (en) * | 2016-07-22 | 2017-06-20 | 成都嘉宝祥生物科技有限公司 | A kind of anticlogging catheter |
| CN206285332U (en) * | 2016-08-30 | 2017-06-30 | 广西壮族自治区人民医院 | Intestinal obstruction decompression drainage casing bit |
| CN107243107A (en) * | 2017-06-12 | 2017-10-13 | 南方医科大学 | Peritoneal cavity drainage tube |
| CN107398004A (en) * | 2017-07-24 | 2017-11-28 | 湖南埃普特医疗器械有限公司 | One kind moves back pipe device |
| US20190038882A1 (en) * | 2017-08-07 | 2019-02-07 | Advanced Dilation Strategies, LLC | Urethral balloon dilator catheter |
| CN208598970U (en) * | 2017-10-23 | 2019-03-15 | 广安市人民医院 | A kind of perfusion chemotherapy clogging-proof drainage tube |
| CN208785399U (en) * | 2018-03-27 | 2019-04-26 | 中山市中健医疗设备有限公司 | A kind of anti-blocking abdominal drainage device |
| CN108404236A (en) * | 2018-04-20 | 2018-08-17 | 河南科技大学第附属医院 | A kind of ICU nursing quick drainage device |
| CN108815678A (en) * | 2018-04-26 | 2018-11-16 | 付金涛 | A kind of nasointestinal tube cleaning plant |
| CN208927395U (en) * | 2018-05-21 | 2019-06-04 | 广州市花都区人民医院 | A kind of negative-pressure drainage tube |
| CN209123016U (en) * | 2018-09-27 | 2019-07-19 | 付继京 | A kind of drainage device used for nursing for ICU severe medicine section |
| CN209984772U (en) * | 2019-04-16 | 2020-01-24 | 贾其磊 | Anti-blocking catheter |
| CN211096938U (en) * | 2019-10-28 | 2020-07-28 | 华中科技大学同济医学院附属协和医院 | Anti-blocking drainage tube for wound closing lavage |
| CN212235586U (en) * | 2020-01-16 | 2020-12-29 | 华中科技大学同济医学院附属协和医院 | Improved drainage tube for pus cavity |
| CN111249603A (en) * | 2020-04-04 | 2020-06-09 | 耿金宏 | Negative pressure drainage tube is prevented blockking up by gall-bladder postoperative with gasbag struts |
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