CN109589488B - Intestinal obstruction dredging device - Google Patents
Intestinal obstruction dredging device Download PDFInfo
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- CN109589488B CN109589488B CN201910027278.0A CN201910027278A CN109589488B CN 109589488 B CN109589488 B CN 109589488B CN 201910027278 A CN201910027278 A CN 201910027278A CN 109589488 B CN109589488 B CN 109589488B
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- flexible filling
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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
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
- A61M29/02—Dilators made of swellable material
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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
- A61M2210/00—Anatomical parts of the body
- A61M2210/10—Trunk
- A61M2210/1042—Alimentary tract
- A61M2210/1064—Large intestine
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Abstract
The invention relates to the technical field of medical apparatus and instruments, and discloses an ileus dredging device, which comprises: the first expansion part comprises a hard first bottom plate and a first flexible filling expansion body positioned on the first bottom plate, and a cavity is formed between the first flexible filling expansion body and the first bottom plate; the second expansion part is positioned in the cavity and comprises a hard second bottom plate and a second flexible filling expansion body positioned on the second bottom plate; the driving device is positioned in the cavity and used for driving the second expansion part to extend forwards or pulling the first expansion part towards the second expansion part; and a hollow insertion tube having a front end connected to the first expansion member. According to the invention, the first expansion part and the second expansion part which alternately advance, expand and contract are arranged, so that the obstruction position in the intestinal tract is sequentially dredged, the damage to the intestinal tract is extremely small, the protection of the intestinal tract, especially the obstructed intestinal tract is ensured, and the living quality and the living time of a patient are greatly improved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an ileus dredging device.
Background
Intestinal obstruction is a common complication of malignant tumors of the digestive tract, sometimes acute intestinal obstruction is difficult to diagnose and fast in disease development, patients often die, and the intestinal obstruction is usually dredged by means of an open surgery to solve the disease. The diffuse intestinal obstruction even loses the operation chance, so that the patient can not eat food for a long time, can only rely on the intravenous nutrition to maintain the life, the life quality of the patient is greatly reduced, and even the patient further loses the chance of chemotherapy and oral targeted therapeutic drugs due to poor constitution, and the patient can die of the intestinal obstruction indirectly but not the tumor.
Currently, mild ileus can be relieved by drug conservative treatment methods for self-relieving ileus, or the ileus intestinal canal is resected by operation, the chance of relieving the former is poor, and even the lower the grade is due to tumor progression in the waiting process, the latter needs to be operated by an operation, and the patient is injured. And severe ileus can not be solved even by surgery.
The existing intestinal obstruction treatment devices also comprise dredging parts for intestinal obstruction and corresponding methods, and mainly an air bag is arranged at the front end of the treatment device, and the obstruction position is forcedly propped open by the air bag. The method has certain problems, mainly has great damage to the obstruction position, firstly, the obstruction position is propped open by the air bag once, the air bag needs to be filled to a great volume, the obstruction position (and the front normal intestinal tract) can be forced to be enlarged to a great extent, and the damage to the intestinal tract is great; when the device is opened for a plurality of times, the obstruction position contracts along with the contraction of the air bag and wraps the front end of the treatment device, so that the treatment device is difficult to move forwards, and the problem of subsequent multi-section intestinal obstruction at a far end and a deep part cannot be solved.
Disclosure of Invention
In view of the above disadvantages, the present invention provides an ileus dredger, which is capable of dredging an obstructed intestinal tract with minimal damage to the intestinal tract.
In order to achieve the purpose, the invention adopts the following technical scheme:
an ileus dredger comprising: the first expansion part comprises a hard first bottom plate and a first flexible filling expansion body positioned on the first bottom plate, and a cavity is formed between the first flexible filling expansion body and the first bottom plate; the second expansion part is positioned in the cavity and comprises a hard second bottom plate and a second flexible filling expansion body positioned on the second bottom plate; a drive device located within the cavity to drive the second expansion member forward or pull the first expansion member toward the second expansion member; a hollow insertion tube, a front end of which is connected to the first expansion member.
The ileus dredger comprises a first expansion part and a second expansion part, wherein the first expansion part and the second expansion part are respectively provided with a first opening and a second opening, the first opening is communicated with the first expansion part, the second opening is communicated with the second expansion part, and the first opening is communicated with the second opening.
In the ileus dredger, when the first flexible filling expansion body expands, the structure formed by the first bottom plate and the first flexible filling expansion body is cylindrical, elliptic or square.
In the intestinal obstruction dredger, when the second flexible filling expansion body expands, the rear end of the structure formed by the second bottom plate and the second flexible filling expansion body is smaller than the middle part of the structure.
In the intestinal obstruction dredger, the front end of the second flexible filling expansion body is also provided with a conical end part with a forward tip part during expansion.
In the intestinal obstruction dredger, the driving device is a lead screw pair driven by a micro motor, or an air cylinder mechanism or a hydraulic cylinder mechanism.
In the intestinal obstruction dredger, the bottom of the first base plate is provided with a plurality of first openings, the bottom of the second base plate is provided with a second opening, and the first openings and the second openings are respectively led out from the hollow insertion pipe through pipelines.
In foretell ileus dredge, the opening part of first trompil and second trompil is equipped with the sucking disc respectively, the uncovered of sucking disc is outside and the intercommunication first trompil and second trompil.
In the ileus deoccluder described above, the first and second swelling members and the driving device are formed with a space through which a tube inserted from outside passes.
Compared with the prior art, the invention has the beneficial effects that: the invention provides an ileus dredger, which is characterized in that a first expansion part and a second expansion part which alternately advance, expand and contract are arranged to realize sequential and gradual dredging of an obstructed position in an intestinal tract.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an embodiment of the present invention;
FIG. 5 is a schematic view of the location of the opening and the suction cup in an embodiment of the present invention.
Wherein the labels shown in the figures are: 11: first base plate, 12: first flexible inflation filling body, 13: cavity, 14: first opening, 21: second bottom plate, 22: second flexible inflation filling body, 24: second opening, 30: hollow insertion tube, 31: first pipe, 32: second pipe, 33: third line, 34: fourth line, 35: fifth pipe, 40: suction cup, 61: sleeve, 62: piston, 63: a piston rod.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the preferred embodiment of the present invention provides an ileus deoccluding device, which mainly comprises a first expansion member, a second expansion member, a driving means, and a hollow insertion tube 30.
Referring to fig. 1, the first expansion member includes a rigid first base plate 11 (made of rigid polyurethane, for example), and a first flexible filling expansion body 12 located on the first base plate 11, a cavity 13 is formed between the first flexible filling expansion body 12 and the first base plate 11, and a front end of the cavity 13 is open. The first flexible inflatable body 12 is made of a flexible material and is made into a bag-shaped structure (such as flexible polyvinyl chloride, polyethylene, polypropylene, polystyrene, etc.), the bag-shaped structure has a cavity inside for filling with a medium, when the medium is filled, the first flexible inflatable body 12 will expand, and when the medium is extracted, the first flexible inflatable body will become deflated or contracted; the inner side wall of the first flexible filling expansion body 12 is relatively hard, so that the cavity 13 can not be compressed to reserve the activity space of the second expansion part and the driving device when the medium is filled, namely, the first flexible filling expansion body 12 expands outwards to prop open the intestinal tract when the medium is filled. In the preferred embodiment, the length of the first expansion part is 2-3 cm, the diameter of the first expansion part after expansion can reach 4-5 cm, and the inner diameter of the cavity 13 is 1.5-2.5 cm. A second expansion element located within the cavity 13 and comprising a rigid second base 21 (e.g. made of rigid polyurethane), a second flexible filler expansion body 22 located above the second base 21; the second flexible inflatable body 22 is made of flexible material (such as flexible polyvinyl chloride, polyethylene, polypropylene, polystyrene, etc.) and has a cavity therein for filling with the medium, and the second flexible inflatable body 22 will expand outwards when filled with the medium and will become deflated or contracted when the medium is withdrawn. In the preferred embodiment, the length of the second expansion part is 1-1.5 cm, and the diameter of the second expansion part after expansion can reach 2-4 cm. Drive means are located within the cavity 13 for driving the second expansion member forwardly or for pulling the first expansion member towards the second expansion member. The front end of the hollow insertion tube 30 is connected with the first expansion part, and the hollow insertion tube 30 is made of polyvinyl chloride and has certain flexibility and the diameter is preferably 05-1 cm.
In practice, referring to fig. 1 to 4, the first expansion member, the second expansion member and the driving device are fed into the intestine through the hollow insertion tube 30 to reach the obstruction position (at this time, the second expansion member and the driving device are located in the cavity 13 of the first expansion member, as shown in fig. 1), the first flexible filling expansion body 12 in the first expansion member is filled with the medium, the first flexible filling expansion body 12 is expanded (as shown in fig. 2), and the partially obstructed intestine near the front end of the first expansion member is opened, at this time, the first bottom plate 11 of the first expansion member and the first flexible filling expansion body 12 are tightly attached to the inner wall of the obstruction position, and the obstructed intestine near the front end of the first expansion member is partially opened to form a space, then the driving device drives the second expansion member forward to reach the space, and then the second flexible filling expansion body 22 in the second expansion member is filled with the medium, the second flexible inflatable filling body 22 is inflated (as shown in fig. 3), the obstructed intestinal tract at the position is expanded, at the moment, the second bottom plate 21 of the second inflatable part and the front part of the second flexible inflatable filling body 22 are tightly attached to the inner wall of the obstructed intestinal tract, at the moment, the medium filled with the medium in the first flexible inflatable filling body 12 is pumped out (or partially pumped out), the first flexible inflatable filling body 12 is deflated (or shrunk and becomes small), the driving device drives the first inflatable part and pulls the first inflatable part towards the second inflatable part (as shown in fig. 4), the whole device advances a little along the obstruction part, then the medium filled with the medium in the second flexible inflatable filling body 22 is pumped out, the second flexible inflatable filling body 22 is deflated, and the whole device gradually advances after a plurality of operations until the whole obstruction part is dredged.
In a preferred embodiment, the ileus dredger further comprises a pump (not shown) which is in communication with the first and second expansion members via a conduit (made of polyurethane) for delivering gas or liquid to or withdrawing gas or liquid from the first and second expansion members. In the preferred embodiment, the pump is an air pump, and the air pump is communicated with the internal cavity of the first flexible filling expansion body 12 through a first pipeline 31 and communicated with the internal cavity of the second flexible filling expansion body 22 through a second pipeline 32, so as to fill the internal cavity of the first flexible filling expansion body 12 and the internal cavity of the second flexible filling expansion body 22 with air or extract the internal cavity of the first flexible filling expansion body 12 and the internal cavity of the second flexible filling expansion body 22 with air. When the air pump fills the internal cavity of the first flexible filling expansion body 12 and the internal cavity of the second flexible filling expansion body 22 with air, the internal cavity of the first flexible filling expansion body 12 and the second flexible filling expansion body 22 expand, and when the air pump pumps out the air in the internal cavity of the first flexible filling expansion body 12 and the internal cavity of the second flexible filling expansion body 22, the internal cavity of the first flexible filling expansion body 12 and the second flexible filling expansion body 22 become deflated (contracted). It is noted that the internal cavity of the first flexible filled expansion body 12 and the deflation of the second flexible filled expansion body 22 do not necessarily mean complete deflation, but rather only deflation to an extent that the first and second expansion members are able to move smoothly within the obstruction.
In the preferred embodiment, when the first flexible filling expansion body 12 expands, the structure formed by the first bottom plate 11 and the first flexible filling expansion body 12 is a cylindrical structure with a cavity 13 in the center and the front end of the cylindrical structure is open. The transverse section (under the normal condition) of intestinal is generally approximate to be the ring shape, consequently, when first flexible filling inflation body 12 expanded, first bottom plate 11 and the structure that first flexible filling inflation body 12 becomes were cylindricly can laminate in the inside wall of intestinal well to can realize radially evenly strutting the intestinal of obstruction to all around, avoid strutting inhomogeneous or only strut partial obstruction position, cause to strut partial atress and damage the intestinal. In other preferred embodiments, when the first flexible filling expansion body expands, the structure formed by the first bottom plate and the first flexible filling expansion body can also be in other shapes such as an elliptic cylinder shape or a square cylinder shape.
As shown in fig. 3 and 4, when the second flexible filling expansion body 22 is expanded, the second bottom plate 21 and the second flexible filling expansion body 22 are constructed such that the rear end, which is referred to herein as one end near the first expansion member, is smaller than the middle portion. The middle part of the structure formed by the second bottom plate 21 and the second flexible filling expansion body 22 is large, so that the middle part can be used for propping open the obstruction part of the intestinal tract, and the small rear end can realize the advancing in a larger range (the rear end is small, so that the first expansion part can be closer to the front) when the first expansion part is close to the second expansion part.
Further, as shown in fig. 3 and 4, the front end of the second flexible inflation body 22 also has a conical end portion with a tip portion forward when inflated. The tip of coniform and intestinal are blocked department and are more pressed close to towards the shape that opens of normal department for second inflation part is when forward, compares in the unanimous shape of front end periphery, and the resistance is littleer, and is more forward easily, and not fragile intestinal more. It should be noted that the conical tip in this embodiment does not mean that the tip has a sharp structure, but means a conical shape similar to the tip.
In a preferred embodiment, the driving device is preferably a lead screw pair driven by a micro motor, or an air cylinder mechanism or a hydraulic cylinder mechanism. In the preferred embodiment, referring to fig. 1 to 4, the driving device is preferably a cylinder mechanism, and includes a sleeve 61, a rear end of the sleeve 61 is fixed on a rear portion of the first bottom plate 11, a piston 62 is fittingly arranged in the sleeve 61, a piston rod 63 arranged forward is fixedly arranged on the piston 62, a front end of the piston rod 63 is fixedly connected with the second bottom plate 21, a rear end of the sleeve 61 is connected with an external inflation and deflation device through a third pipeline 33 (made of polyurethane), and an air pump is arranged in the preferred embodiment, so that the driving device can be connected with the air pump. When the device is used, the first flexible filling expansion body 12 expands to enable the first expansion part to be attached to the inner side wall of the intestinal tract, the first expansion part is fixed, the air pump inflates air into the sleeve 61, the piston 62 is stressed forwards, and the piston rod 63 is pushed forwards to push the second expansion part forwards; when the second expansion part reaches the position, the second flexible filling expansion body 22 expands, the second expansion part is attached to the inner side wall of the intestinal tract, the second expansion part is fixed (at the moment, the first flexible filling expansion body 12 is deflated), the air pump sucks air from the sleeve 61, the piston 62 is under negative pressure, and at the moment, the rear end of the sleeve 61 moves towards the piston 62 (the distance between the sleeve 61 and the piston 62 is shortened), so that the first expansion part is driven to move forwards. Through the mode, the first expansion part and the second expansion part can alternately move forwards after repeated for multiple times.
Further, referring to fig. 5, the bottom of the first bottom plate 11 is provided with a plurality of first openings 14, the bottom of the second bottom plate 21 is provided with a second opening 24, the second opening 24 is disposed at the front of the second bottom plate 21, the first opening 14 is led out from the hollow insertion tube 30 through a fourth pipeline 34 and is connected with an external inflation and deflation device, and the second opening 24 is led out from the hollow insertion tube 30 through a fifth pipeline 35 and is connected with the external inflation and deflation device (the pipeline is made of polyurethane). In the preferred embodiment, the inflation and deflation device is preferably an air pump, and therefore the fourth and fifth pipes 34 and 35 are connected to the air pump, respectively. When the first and second flexible filling expansion bodies 12 and 22 are expanded, the first and second expansion members may not be completely attached to the inner wall of the intestinal tract or may not be fixed to the inner wall of the intestinal tract even if the first and second expansion members are attached to the inner wall of the intestinal tract, and when the driving device drives the second expansion member forward, the first expansion member may slide backward while the second expansion member does not move, or when the second expansion member pulls the first expansion member forward by the driving device, the first expansion member may not move while the second expansion member slides backward. Therefore, after the first opening 14 and the second opening 24 are arranged, when the first expansion part needs to be fixed, the air pump is used for pumping air (relatively soft) to the first opening 14 of the first base plate 11, so that the side wall of the inner side wall of the intestinal tract at the position corresponding to the first opening 14 is partially sucked into the first opening 14 due to negative pressure, and the first base plate 11 and the inner side wall of the intestinal tract can be well fixed to each other, namely the first expansion part and the inner side wall of the intestinal tract can be well fixed to each other; when the first expansion part needs to be separated, the first opening 14 is inflated, the side wall of the inner side wall of the intestinal tract at the position corresponding to the first opening 14 is pressed and blown out of the first opening 14, and at the moment, the first bottom plate 11 and the inner side wall of the intestinal tract have the acting force of being away from each other, namely, the first expansion part is separated from the intestinal tract. Similarly, the second expansion element is fixed and separated in the same manner as the first expansion element. Through above-mentioned mode, can guarantee well that first inflation part and second inflation part are fixed well when needs are fixed, can separate with the intestinal well when needs remove.
Further, referring to fig. 5, the openings of the first opening 14 and the second opening 24 are respectively provided with a suction cup 40, and the opening of the suction cup 40 faces outward and is communicated with the first opening 14 and the second opening 24. The suction cup 40 can avoid blockage well, has good adsorption effect and can not damage the intestinal tract.
In a preferred embodiment, the first expansion member, the second expansion member and the driving means are formed with a space through which an externally inserted pipe passes. A space is reserved in the hollow insertion tube 30, the first expansion member has a cavity 12, the cavity 12 communicates with the hollow insertion tube 30, and a large space is formed when the first expansion member is expanded and the second expansion member is not expanded, and an external tube can pass through the space.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. An ileus dredger comprising:
the first expansion part comprises a hard first bottom plate and a first flexible filling expansion body positioned on the first bottom plate, and a cavity is formed between the first flexible filling expansion body and the first bottom plate;
the second expansion part is positioned in the cavity and comprises a hard second bottom plate and a second flexible filling expansion body positioned on the second bottom plate;
a drive device located within the cavity to drive the second expansion member forward or pull the first expansion member toward the second expansion member;
a hollow insertion tube, a front end of which is connected to the first expansion member.
2. The ileus dredger of claim 1, wherein: the gas or liquid pump is communicated with the first expansion part and the second expansion part through pipelines so as to convey gas or liquid to the first expansion part and the second expansion part or extract gas or liquid from the first expansion part and the second expansion part.
3. The ileus dredger of claim 1, wherein: when the first flexible filling expansion body expands, the structure formed by the first bottom plate and the first flexible filling expansion body is cylindrical, elliptic cylindrical or square cylindrical.
4. The ileus dredger of claim 1, wherein: when the second flexible filling expansion body expands, the rear end of the second bottom plate and the second flexible filling expansion body are smaller than the middle part of the second bottom plate and the second flexible filling expansion body.
5. The ileus dredger of claim 4, wherein: the front end of the second flexible filling expansion body is also provided with a conical end part with a forward tip part during expansion.
6. The ileus dredger of claim 1, wherein: the driving device is a lead screw pair driven by a micro motor, or an air cylinder mechanism or a hydraulic cylinder mechanism.
7. The ileus dredger of claim 1, wherein: the bottom of the first bottom plate is provided with a plurality of first openings, the bottom of the second bottom plate is provided with a second opening, and the first openings and the second openings are respectively led out from the hollow insertion tube through pipelines.
8. The ileus dredger of claim 7, wherein: the opening parts of the first opening hole and the second opening hole are respectively provided with a sucker, and an opening of the sucker is outward and communicated with the first opening hole and the second opening hole.
9. The ileus dredger of claim 1, wherein: the first expansion member, the second expansion member and the driving means are formed with a space through which an externally inserted pipe passes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910027278.0A CN109589488B (en) | 2019-01-11 | 2019-01-11 | Intestinal obstruction dredging device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910027278.0A CN109589488B (en) | 2019-01-11 | 2019-01-11 | Intestinal obstruction dredging device |
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| CN109589488A CN109589488A (en) | 2019-04-09 |
| CN109589488B true CN109589488B (en) | 2021-07-30 |
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| CN110288890B (en) * | 2019-06-21 | 2024-06-14 | 温州市人民医院 | Intestinal canal stent implantation demonstrating device |
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