Multifunctional channel path equipment for debridement and drainage of necrotic acute pancreatitis

Abstract

The invention discloses multifunctional channel path equipment for debridement and drainage of necrotic acute pancreatitis. The multifunctional channel path equipment comprises a channel hose, a debridement supporting tube and a drainage sealing piece. The head end of the channel hose extends into a target object and reaches a target position, and the tail end of the channel hose is exposed out of the target object; the part, located in the target object body, of the channel hose can deform under extrusion of tissue in the target object, and the space of an inner channel of the deformed channel hose is reduced and is reduced to be not smaller than one fifth of the original space. The multifunctional channel path device has a debridement configuration and a drainage configuration. In the debridement structure, the debridement supporting pipe extends into the inner channel of the channel hose from the tail end of the channel hose to support the channel hose. In the drainage structure, the drainage sealing piece seals the tail end opening of the channel hose, a drainage channel is formed in the drainage sealing piece, the first end opening of the drainage channel is communicated with the inner channel of the channel hose, and the second end opening of the drainage channel is communicated with the external environment outside the target object.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis. Background Art

[0002] Acute pancreatitis is one of the common acute abdominal diseases, and its incidence rate is increasing year by year. Although the treatment level of mild and moderate acute pancreatitis has been continuously improved with the progress of emergency and critical diagnosis and treatment technology, if patients with severe acute pancreatitis (i.e. necrotizing acute pancreatitis) develop secondary infection, the mortality rate can reach 10% to 20%, and they often need multiple surgical debridement treatments, long hospitalization time and high treatment costs.

[0003] Currently, pancreatic debridement treatment has a trend towards minimally invasive treatment. However, due to the characteristics of the disease course, multiple laparotomies or retroperitoneal incisions are still required for debridement under general anesthesia. The surgical trauma is large, and the cumulative operation time and anesthesia time are long, resulting in high surgical risks and high treatment costs. In addition, after pancreatic debridement surgery, the pancreas and peripancreatic infection foci need to be continuously drained. Currently, handmade three-lumen drainage tubes are mainly used in clinical practice. Since the drainage tubes are continuously connected to the outside of the body, there is a risk of secondary infection; and handmade drainage tubes are time-consuming and labor-intensive. Summary of the invention

[0004] The purpose of the present invention is to provide a multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis, so as to solve the problem in the prior art that multiple laparotomies or retroperitoneal incisions are required under general anesthesia during the entire treatment process of necrotizing acute pancreatitis.

[0005] The technical solution of the present invention is:

[0006] A multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis, comprising a channel hose, a debridement support tube and a drainage seal;

[0007] The head end of the channel hose is used to extend into the target object and reach the target position, and the tail end of the channel hose is used to be exposed outside the target object; the portion of the channel hose located inside the target object can be deformed under the pressure of the tissue inside the target object, and after the deformation, the space of the internal channel of the channel hose is reduced and is reduced to not less than one fifth of the original space;

[0008] The multifunctional channel path device has a debridement configuration and a drainage configuration, the debridement support tube is used in the debridement configuration, and the drainage seal is used in the drainage configuration;

[0009] In the debridement configuration, the debridement support tube extends from the rear end of the channel hose into the internal channel of the channel hose to support it;

[0010] In the drainage configuration, the drainage seal closes the tail end opening of the channel hose, and a drainage channel is provided on the drainage seal, the first end opening of the drainage channel is connected to the internal channel of the channel hose, and the second end opening of the drainage channel is connected to the external environment outside the target object's body.

[0011] In a multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis provided in a preferred embodiment, a suture portion is provided on the outer wall of the channel hose, and the suture portion is configured to sew and fix it to the surrounding skin tissue by sutures to achieve the fixation of the channel hose to the target object.

[0012] In a multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis provided in a preferred embodiment, the suture portion is a first protrusion protruding on the outer side wall of the channel hose.

[0013] In a multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis provided by a preferred embodiment, the first protrusion is an annular structure that surrounds the circumference of the channel hose, and the first protrusion is made integrally with the channel hose.

[0014] In a multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis provided in a preferred embodiment, the channel hose is a silicone tube.

[0015] In a multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis provided in a preferred embodiment, the drainage seal is a sealing plug, the sealing plug is detachably connected to the internal channel of the channel hose, and the circumferential outer side wall of the sealing plug is sealed and fitted with the inner side wall of the channel hose;

[0016] The first end opening and the second end opening of the drainage channel are respectively opened on the end surfaces at both axial ends of the sealing plug.

[0017] In a multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis provided in a preferred embodiment, a second protrusion corresponding to the drainage channel is provided on the axial end face of the sealing plug facing away from the head end of the channel hose, and the second end opening of the drainage channel is provided on the end face corresponding to the second protrusion.

[0018] In a multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis provided by a preferred embodiment, the cross-section of the second protrusion is a circular ring.

[0019] In a multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis provided in a preferred embodiment, a filtering structure is provided on the drainage channel.

[0020] In a multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis provided by a preferred embodiment, the sealing plug is detachably connected to the channel hose via a clamp structure; the clamp structure is sleeved outside the channel hose and located in the area corresponding to the sealing plug, and the clamp structure is used to press the channel hose and the sealing plug so that the circumferential outer side wall of the sealing plug is sealed and fits with the inner side wall of the channel hose.

[0021] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art:

[0022] The multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis provided by the present invention can be fixed to the projected position of the abdominal wall where the debridement site is located through a single operation. In the debridement configuration, the internal channel of the support tube can create an operating space for medical equipment such as laparoscopes and endoscopes; when drainage is required after the debridement operation is completed, the support tube can be taken out, and then the drainage seal can be installed to perform the drainage operation under the drainage configuration. Therefore, the multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis provided by the present invention has the characteristics of single retention and multiple use. After the channel hose is retained, subsequent debridement operations do not need to be performed after general anesthesia, laparotomy or retroperitoneal incision, thereby reducing the number of surgical operations (i.e., no multiple laparotomies or retroperitoneal incisions are required), reducing the number of general anesthesia times, and reducing the duration of anesthesia, thereby reducing surgical risks and treatment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only used to illustrate the preferred embodiment and are not considered to be limitations of the present invention; and the drawings are only for illustration, and the dimensions in the drawings do not represent the dimensions of the actual product and are not limitations on the dimensions of the actual product.

[0024] Figure 1 It is a structural schematic diagram of a channel hose of the present invention;

[0025] Figure 2 It is a structural schematic diagram of a debridement support tube of the present invention;

[0026] Figure 3 It is a structural schematic diagram of a drainage seal of the present invention;

[0027] Figure 4 It is a structural schematic diagram of a clamp structure of the present invention.

[0028] Description of reference numerals:

[0029] 1: channel hose; 11: first protrusion; 2: debridement support tube; 3: sealing plug; 31: second protrusion; 4: clamp body; 5: bolt and nut assembly. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0031] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0032] Currently, debridement of necrotic pancreas still requires multiple surgical debridement and drainage under general anesthesia, which takes a long time, causes great trauma, requires a long anesthesia time, and has high treatment costs. Moreover, the current continuous drainage after debridement surgery mostly uses a three-chamber flushing drainage tube, which is time-consuming and laborious to replace, and has a high risk of secondary infection due to its connection with the outside of the body. Therefore, there is an urgent need for a channel device that can be used multiple times for debridement and drainage of necrotic pancreas, reduce the number of surgeries, and provide closed drainage.

[0033] See also Figures 1 to 4 , this embodiment provides a multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis, including a channel hose 1, a debridement support tube 2 and a drainage seal. The head end of the channel hose 1 is used to extend into the body of the target object (i.e., the patient) and reach the target position (i.e., the lesion position), and the tail end of the channel hose 1 is used to be exposed outside the target object. The portion of the channel hose 1 located inside the target object can be deformed under the pressure of the tissue inside the target object, and the space of the internal channel of the deformed channel hose 1 is reduced and reduced to not less than one-fifth of the original (i.e., the portion of the channel hose 1 located inside the patient's body can be deformed and flattened under the pressure of the tissue inside the patient's body, so that the channel hose 1 does not occupy too much space during drainage; but at the same time, the channel hose 1 should have a certain strength, and the channel hose 1 will not be closed under the pressure of the tissue, and it is still open).

[0034] The multifunctional channel path device has a debridement configuration and a drainage configuration, the debridement support tube 2 is used for the debridement configuration, and the drainage seal is used for the drainage configuration. In the debridement configuration, the debridement support tube 2 extends from the tail end of the channel hose 1 into the internal channel of the channel hose 1 to support it. In the drainage configuration, the drainage seal closes the tail end opening of the channel hose 1, and a drainage channel is provided on the drainage seal, the first end opening of the drainage channel is connected to the internal channel of the channel hose 1, and the second end opening of the drainage channel is connected to the target object, that is, the external environment outside the patient's body, and the drainage tube enters the internal channel of the channel hose 1 through the drainage channel, and then reaches the lesion location.

[0035] The following is a further description of the multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis of this embodiment.

[0036] When installing the channel hose 1 in the first operation (the channel hose 1 is left in place after this operation, and there is no need to install the channel hose 1 in subsequent operations), it is necessary to open the abdomen first so that the head end of the channel hose 1 can enter the patient's body through the opening of the abdomen. Although the tissue at the patient's abdominal opening has a tendency to close the opening, which will squeeze the outer wall of the channel hose 1, in order to ensure the stability of the channel hose 1 and prevent the channel hose 1 from moving relative to the abdominal opening (mainly moving along the axial direction of the channel hose 1), the channel hose 1 can be further sutured and fixed to the skin tissue at the abdominal opening.

[0037] Specifically in this embodiment, Figure 1 As shown, a suture portion is provided on the outer wall of the channel hose 1, and the suture portion is configured to suture and fix it with the skin tissue around it by sutures to achieve the fixing of the channel hose 1 to the target object (i.e., fixed on the patient). More specifically, the suture portion can be a first protrusion 11 convexly provided on the outer wall of the channel hose 1; preferably, the first protrusion 11 can be an annular structure that surrounds the channel hose 1 in a circumferential direction, and the channel hose 1 and the first protrusion 11 are made as one piece. In this way, the channel hose 1 can be fixed on the patient by suture and fixation of the suture portion with the surrounding skin tissue. Moreover, since the tissue at the abdominal opening of the patient has a movement tendency to close the opening, and the channel hose 1 is located in the abdominal wall opening, the tissue at the abdominal opening around the channel hose 1 (mainly skin tissue) will squeeze the outer wall of the channel hose 1, so that the channel hose 1 and the surrounding skin tissue are closed and have no gaps, so that closed drainage can be achieved during drainage.

[0038] Of course, in other embodiments, other methods may also be used to fix the channel hose 1. For example, when the wall thickness of the channel hose 1 is thicker, a suture needle with thread may be used to directly suture and fix the outer wall of the channel hose 1 to the surrounding tissue (the suture needle with thread does not penetrate into the inner wall of the channel hose 1, and the internal channel of the channel hose 1 will not have leaks due to the suture needle with thread), etc.

[0039] Preferably, in the present embodiment, the channel hose 1 is made of a silicone tube, and the channel hose 1 and the first protrusion 11 are integrally formed of a silicone material.

[0040] The debridement support tube 2 needs to be made of a material with a certain hardness so as to play a supporting role inside the channel hose 1 and not be flattened by the tissue around the channel hose 1. The debridement support tube 2 is preferably made of polyvinyl fluoride mixed with polypropylene, and of course it can also be made of other materials.

[0041] Since the channel hose 1 has a certain elasticity, the diameter of its internal channel can be expanded to a certain extent, therefore, the outer diameter of the debridement support tube 2 can be slightly greater than or equal to the inner diameter of the channel hose 1. Of course, the outer diameter of the debridement support tube 2 is preferably slightly smaller than the inner diameter of the channel hose 1, so that the debridement support tube 2 can smoothly extend into the channel hose 1. Slightly greater than and slightly less than means that the difference with the inner diameter of the channel hose 1 is within 2 mm. Preferably, before extending the debridement support tube 2 into the channel hose 1, medical paraffin oil can be applied to the outer wall of the debridement support tube 2, so that the debridement support tube 2 can be more smoothly extended into the channel hose 1.

[0042] like Figure 3 As shown, in the present embodiment, the drainage seal is a sealing plug 3. The sealing plug 3 is detachably connected to the internal channel of the channel hose 1, and the circumferential outer side wall of the sealing plug 3 is sealed and fitted with the inner side wall of the channel hose 1. The first end opening and the second end opening of the drainage channel are respectively provided on the end faces at both axial ends of the sealing plug 3. Furthermore, a second protrusion 31 corresponding to the drainage channel is convexly provided on the axial end face of the sealing plug 3 away from the head end direction of the channel hose 1, and the second end opening of the drainage channel is provided on the end face corresponding to the second protrusion 31. The cross section of the second protrusion 31 is preferably a circular ring, so that the second protrusion 31 is similar to the structure of a tube, which is convenient for connection with an external drainage device. The sealing plug 3 and the second protrusion 31 convexly provided on the sealing plug 3 are preferably injection molded together, and the material thereof can be silicone or the like.

[0043] Preferably, the sealing plug 3 is provided with three drainage channels, and three second protrusions 31 are correspondingly provided on the axial end surface of the sealing plug 3 away from the head end direction of the channel hose 1. The three drainage channels are respectively used for continuous suction, injection of physiological saline or other flushing liquid drops, and ventilation. The negative pressure suction tube on the negative pressure module in the external drainage device passes through the drainage channel for continuous suction and enters the internal channel of the channel hose 1, and advances in the internal channel of the channel hose 1 until the head end of the negative pressure suction tube reaches the lesion position; the negative pressure suction tube can be a silicone tube, and the outer diameter of the negative pressure suction tube is relative to the inner diameter of the corresponding drainage channel (there may be a certain error in actual production), so that the negative pressure suction tube made of silicone material can be sealed when passing through the drainage channel made of silicone material. The liquid delivery tube on the injection module in the external drainage device passes through the drainage channel for the injection of physiological saline or other flushing liquid drops, and advances in the internal channel of the channel hose 1 until the head end of the liquid delivery tube reaches the lesion position; the negative pressure suction tube can be a silicone tube, and the outer diameter of the negative pressure suction tube is relative to the inner diameter of the corresponding drainage channel (there may be a certain error in actual production), so that the negative pressure suction tube made of silicone material can be sealed when passing through the drainage channel made of silicone material. The gas delivery end on the gas delivery module in the external drainage device is connected and communicated with the drainage channel for ventilation. When ventilation is required, the lesion position is ventilated through the drainage channel and the internal channel of the channel hose 1.

[0044] Preferably, a filter structure can be provided on the drainage channel for ventilation. Specifically in the present embodiment, the filter structure can be a filter gauze, after the filter gauze covers the second end opening of the corresponding drainage channel, the portion of the filter gauze around the second end opening of the corresponding drainage channel is gathered toward the outer side wall of the second protrusion 31, and then the filter gauze can be tied and fixed on the second protrusion 31 by a binding wire, a rubber band, etc. Of course, other filter structures can also be used in other embodiments, and the specific structure of the filter structure is not limited.

[0045] The sealing plug 3 can be detachably connected to the channel hose 1 through a clamp structure. The clamp structure is sleeved outside the channel hose 1 and located in the area corresponding to the sealing plug 3. The clamp structure is used to press the channel hose 1 and the sealing plug 3 so that the circumferential outer wall of the sealing plug 3 is sealed and fitted with the inner wall of the channel hose 1. Specifically, Figure 4 As shown, the clamp structure includes a clamp body 4 and a bolt and nut assembly 5. When installing the sealing plug 3 to the channel hose 1, first insert the sealing plug 3 into the channel hose 1, then use the clamp body 4 to cover the channel hose 1 (specifically, the area on the channel hose 1 where the sealing plug 3 is located), and finally use the bolt and nut assembly 5 to lock the clamp body 4, so that the clamp body 4 is tightened, so that the clamp body 4 can press the channel hose 1 against the sealing plug 3 (the inner side wall of the channel hose 1 is tightly against the circumferential outer side wall of the sealing plug 3), thereby fixing the sealing plug 3 on the channel hose 1.

[0046] Furthermore, in order to facilitate the installation of the sealing plug 3 into the internal channel of the channel hose 1, the portion of the channel hose 1 for installing the sealing plug 3 can be thickened, thereby improving the support of the rear end of the channel hose 1 (the portion of the channel hose 1 for installing the sealing plug is set at the rear end of the channel hose 1) (i.e., the performance of maintaining a round shape without being flattened). Of course, in other embodiments, other methods can also be used to improve the support performance of the rear end of the channel hose 1. For example, when the debridement surgery is completed and the debridement support tube 2 is taken out, the entire debridement support tube 2 is not taken out, but a small part of the head end of the debridement support tube 2 (the head end of the debridement support tube 2 is the end of the debridement support tube 2 that first enters the internal channel of the channel hose 1 when it is extended into the channel hose 1) is cut and left in the internal channel of the rear end of the channel hose 1, which plays a role in supporting the internal channel of the rear end of the channel hose 1, and the sealing plug 3 is installed in the debridement support tube 2 left in the channel hose 1.

[0047] The multifunctional channel path device of this embodiment can be fixed to the projected position of the abdominal wall where the debridement site is located through surgery, and can provide a channel for laparoscopes, endoscopes and other equipment in conjunction with the debridement support tube 2. The channel hose 1 only needs to be left in place for a single operation and can be used in subsequent debridement operations. In subsequent multiple debridement operations, the laparoscope, endoscope, etc. can quickly reach the infected area through the internal channel of the debridement support tube 2. Therefore, the multifunctional channel path device of this embodiment can effectively reduce the number of general anesthesia operations, reduce anesthesia time, and reduce the duration of surgical operations, thereby reducing surgical risks and treatment costs.

[0048] The multifunctional channel path device of this embodiment can realize closed drainage when used for drainage, thereby reducing the risk of secondary infection. At the same time, it is more convenient and labor-saving when replacing the drainage tube, and reduces the risk of bleeding caused by replacing the drainage tube in the prior art.

[0049] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalent technologies, they still fall within the protection scope of the present invention.

Claims

1. A multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis, characterized in that: Includes access hose, debridement support tube and drainage seal; The head end of the channel hose is used to extend into the target object and reach the target position, and the tail end of the channel hose is used to be exposed outside the target object; the portion of the channel hose located inside the target object can be deformed under the pressure of the tissue inside the target object, and after the deformation, the space of the internal channel of the channel hose is reduced and is reduced to not less than one fifth of the original space; The multifunctional channel path device has a debridement configuration and a drainage configuration, the debridement support tube is used in the debridement configuration, and the drainage seal is used in the drainage configuration; In the debridement configuration, the debridement support tube extends from the rear end of the channel hose into the internal channel of the channel hose to support it; In the drainage configuration, the drainage seal closes the tail end opening of the channel hose, and a drainage channel is provided on the drainage seal, the first end opening of the drainage channel is connected to the internal channel of the channel hose, and the second end opening of the drainage channel is connected to the external environment outside the target object's body.

2. The multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis according to claim 1, characterized in that: A suture portion is provided on the outer side wall of the channel hose, and the suture portion is configured to suture and fix the channel hose to the surrounding skin tissue by sutures so as to fix the channel hose to the target object.

3. The multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis according to claim 2, characterized in that: The sewing portion is a first protrusion protruding from the outer side wall of the channel hose.

4. The multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis according to claim 3, characterized in that: The first protrusion is an annular structure that surrounds the channel hose in a circle, and the first protrusion and the channel hose are made in one piece.

5. The multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis according to claim 1, characterized in that: The channel hose is a silicone tube.

6. The multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis according to claim 1, characterized in that: The drainage seal is a sealing plug, which is detachably connected to the inner channel of the channel hose, and the circumferential outer side wall of the sealing plug is in sealing contact with the inner side wall of the channel hose; The first end opening and the second end opening of the drainage channel are respectively opened on the end surfaces at both axial ends of the sealing plug.

7. The multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis according to claim 6, characterized in that: A second protrusion corresponding to the drainage channel is convexly provided on the axial end surface of the sealing plug facing away from the head end of the channel hose, and the second end opening of the drainage channel is arranged on the end surface corresponding to the second protrusion.

8. The multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis according to claim 7, characterized in that: The cross section of the second protrusion is a circular ring.

9. The multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis according to claim 1, characterized in that: A filtering structure is provided on the drainage channel.

10. The multifunctional channel path device for debridement and drainage of necrotizing acute pancreatitis according to claim 6, characterized in that: The sealing plug is detachably connected to the channel hose via a clamp structure; the clamp structure is sleeved outside the channel hose and located in the area corresponding to the sealing plug, and the clamp structure is used to press the channel hose and the sealing plug so that the circumferential outer side wall of the sealing plug is sealed and fitted with the inner side wall of the channel hose.

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