Improved gastrostomy device

Abstract

The utility model relates to the technical field of gastrostomy, and discloses an improved gastrostomy device which comprises an injection needle, a wire penetrates through the injection needle, the upper end of the wire is connected with a PEG feeding tube, the top of the PEG feeding tube is fixedly sleeved with a stop block, the outer end of the PEG feeding tube is sleeved with a protection assembly, and the stop block is located in the protection assembly. The upper end of the guide wire is connected with the PEG feeding tube through a connecting assembly, the connecting assembly comprises a connecting plate, the connecting plate is installed at the lower end of the PEG feeding tube, a connecting insertion cylinder is fixedly installed at the lower end of the connecting plate, the upper end of the guide wire is detachably inserted into the connecting insertion cylinder, and a silica gel positioning block is arranged in the connecting insertion cylinder. According to the stomach fistulization device, the protection assembly is additionally arranged on the basis of an original pull-out method stomach fistulization device, tumor planting caused by the pull-out method can be reduced, mucous membrane damage and tumor bleeding caused by the pull-out method can be avoided, meanwhile, the local infection occurrence rate can be reduced, the safety of the pull-out method is better improved, and the clinical treatment effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gastrostomy technical field especially relates to a modified gastrostomy device. BACKGROUND

[0002] Under a variety of disease states (for example, nervous system diseases, esophageal cancer, etc.), many people lose the ability and way of oral feeding, leading to malnutrition, systemic failure. Gastrostomy can establish the passage of enteral nutrition, the most common PEG in China, uses pull-out method to place into gastrostomy tube, but PEG research data of head and neck tumor shows that pull-out method PEG can cause tumor implantation in up to 9% of patients via PEG conduit, the main clinical manifestations are PEG stoma hardening, ulceration, excessive pain or discomfort, repeated infection, excessive bleeding, persistent purulent exudation, mass growth, progressive granulation formation, etc.

[0003] Mechanism of tumor implantation caused by pull-out method PEG: the conduit passes through the digestive tract, leading to head and neck esophageal tumor cells being brought into the abdominal wall. Although Intraducer method PEG can avoid this complication, but this method has not been popularized, and because of the method and consumable factors, the conduit is usually thin (brand: Kuriat, thickness is 15Fr), compared with the thicker conduit (14-24Fr) used in pull-out method PEG, so the insertion method cannot meet the clinical needs, and is limited by anatomical factors, the insertion method will bring more bleeding complications. Therefore, pull-out method PEG via gastroscope is still irreplaceable.

[0004] For patients with oropharyngeal tumor and esophageal cancer, when pull-out method PEG is performed, because of the dragging of the internal built-in disc of the gastrostomy tube in the oropharynx and esophagus, it is easy to cause tumor tissue implantation in the abdominal wall, and part of the long-term nasogastric feeding patients, their esophageal mucosa is thin, and the dragging of the internal built-in disc of the gastrostomy tube is easy to cause mucosal injury and bleeding. In addition, pull-out method PEG can drag the bacteria in the oropharynx to the abdominal wall, causing local infection, and severe cases can cause cellulitis.

[0005] These potential adverse events will limit the clinical application of PEG, deprive patients of the opportunity to create a stoma, cause malnutrition, and lead to poor prognosis.

[0006] In order to solve the above problems, a modified gastrostomy device is further proposed. UTILITY MODEL CONTENT

[0007] The improved gastrostomy device provided by the utility model solves the problems in the background art.

[0008] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0009] An improved gastrostomy device comprises an injection needle, a guide wire is threaded through the injection needle, a PEG feeding tube is connected to the upper end of the guide wire, a blocking block is fixedly sleeved on the top of the PEG feeding tube, and a protection assembly is sleeved on the outer end of the PEG feeding tube, and the blocking block is located inside the protection assembly.

[0010] Preferably, the upper end of the guide wire is connected to the PEG feeding tube through a connecting assembly.

[0011] Preferably, the connecting assembly comprises a connecting plate, the connecting plate is installed at the lower end of the PEG feeding tube, a connecting plug is fixedly installed at the lower end of the connecting plate, and the upper end of the guide wire is detachably inserted into the connecting plug.

[0012] Preferably, a silica gel positioning block is arranged inside the connecting plug, the upper end of the guide wire is fixedly extruded by the silica gel positioning block, and anti-skid lines are arranged on the side of the silica gel positioning block close to the guide wire.

[0013] Preferably, a positioning plug is fixedly installed at the upper end of the connecting plate, the lower end of the PEG feeding tube is inserted into the positioning plug, the bottom of the PEG feeding tube is detachably fixed to the positioning plug through a positioning rod, the positioning rod is provided with threads, the threads of the positioning rod are threaded through the positioning plug, and the inner side of the positioning rod close to the positioning plug is tightly attached to the outer end surface of the bottom of the PEG feeding tube.

[0014] Preferably, the protection assembly comprises a protective sleeve, the protective sleeve is sleeved on the PEG feeding tube, the upper end of the protective sleeve is conical, a front port is formed at the upper end of the protective sleeve, and a rear port is formed at the lower end of the protective sleeve.

[0015] Preferably, an easy-to-tear opening is arranged at the upper end of the protective sleeve and on the side surface of the conical part.

[0016] Preferably, the side surface of the protective sleeve is provided with an identification scale arranged in parallel with the vertical direction.

[0017] Preferably, the diameter of the front port is 1mm, and the diameter of the rear port is 2cm.

[0018] The improved gastrostomy device has the following beneficial effects:

[0019] 1. The improved gastrostomy device can match the currently used pull-out method / push-in method PEG consumables, can protect the tumor tissue and normal mucosa surface from being rubbed when the stoma tube passes through the oropharynx, esophagus and cardia, can avoid bringing bacteria to the stoma site, and can reduce the risk of tumor implantation, friction bleeding and bacterial infection.

[0020] 2、The improved gastrostomy device, by inserting the upper end of the lead into the connecting plug, and by the silica gel positioning block extruding the upper end of the lead, the positioning of the lead and the connecting plug is realized, and by setting the anti-skid lines, the positioning effect of the silica gel positioning block on the lead can be improved, through the above design, the quick disassembly and assembly of the lead and the connecting plug can be realized, by unscrewing the positioning rod, the separation of the PEG feeding tube and the positioning plug can be realized, then the PEG feeding tube is pulled out from the positioning plug, so that the quick disassembly and assembly of the PEG feeding tube and the connecting plug is realized, through the above design, the quick disassembly and assembly of the PEG feeding tube and the lead can be facilitated.

[0021] The utility model discloses on the original pull-out method gastrostomy device, increase protection assembly, can reduce the tumor implantation caused by pulling out method, avoid mucous membrane damage and tumor hemorrhage caused by pulling out method, can reduce the incidence of local infection simultaneously, better the security of this method is promoted, to improve the clinical treatment effect. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The utility model discloses a kind of improved gastrostomy device structure schematic diagram proposed in the utility model;

[0023] Figure 2 A kind of improved gastrostomy device partial structure schematic diagram proposed in the utility model;

[0024] Figure 3 For Figure 2 Enlarged view of structure in A place;

[0025] Figure 4 A kind of improved gastrostomy device protection assembly structure schematic diagram proposed in the utility model.

[0026] Marked number in drawing: 1 injection needle, 2 lead, 3 connecting assembly, 4 protection assembly, 5 blocking block, 6 connecting plug, 7 connecting plate, 8 positioning plug, 9 positioning rod, 10 PEG feeding tube, 401 protective sleeve, 402 rear port, 403 identification scale, 404 easy tear mouth, 405 front port. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0028] Embodiment 1

[0029] Refer to Figures 1-2 And Figure 4An improved gastrostomy device includes an injection needle 1, through which a wire 2 passes. The upper end of the wire 2 is connected to a PEG feeding tube 10. A blocking block 5 is fixedly fitted on the top of the PEG feeding tube 10. A protective component 4 is fitted on the outer end of the PEG feeding tube 10, and the blocking block 5 is located inside the protective component 4.

[0030] In this embodiment, the protective component 4 includes a protective sleeve 401, which is fitted onto the PEG feed tube 10. The upper end of the protective sleeve 401 is tapered, and a front port 405 is provided at the upper end of the protective sleeve 401. A rear port 402 is provided at the lower end of the protective sleeve 401. An easy-tear opening 404 is provided on the upper end of the protective sleeve 401 and on the side end face of its tapered portion. Marking scales 403 are provided on the side end face of the protective sleeve 401 and are parallel to the vertical direction. The diameter of the front port 405 is 1 mm, and the diameter of the rear port 402 is 2 cm.

[0031] The protection component 4 is compatible with the currently used pull-out / push-in PEG consumables. When the stoma tube passes through the oropharynx, esophagus, and cardia, it protects the tumor tissue and normal mucosal surface from friction. At the same time, it can prevent bacteria from being brought to the stoma site, which can reduce the risk of tumor implantation, friction bleeding, and bacterial infection.

[0032] 1. The upper end of the protective cover 401 and the side end face of its conical part are provided with an extended easy-tear opening 404. The easy-tear opening 404 extends to the front opening and the easy-tear opening 404 is a half-broken indentation dotted line.

[0033] ① The protective sleeve 401 is made of polyvinylpyrrolidone, which is activated by water and reduces resistance during the stretching process.

[0034] ② The front port 405 has a diameter of 1mm and the front end is slightly thickened to increase the pulling force required to tear it open.

[0035] The above two techniques ensure that the PEG feeding tube 10 will not be released prematurely during the pulling process in the mouth and esophagus. The PEG feeding tube 10 and the protective sleeve 401 will go into the stomach together. Pulling the rear end of the protective sleeve 401 will release the stoma tube.

[0036] 2. The rear port 402 has a diameter of 2cm, which can be matched with most consumables available on the market (the diameter of the internal fixed plate, including the deformed part).

[0037] 3. The protective sleeve 401 has a marking scale 403, which helps to determine its front position. If an adult counts the incisor markings of the protective sleeve 401 as 40cm, it can be inferred that the protective sleeve 401 has entered the stomach cavity.

[0038] Working principle: When using this invention, it needs to be used in conjunction with an endoscope. First, insert the endoscope into the stomach through the mouth, insert the injection needle 1 through the skin, and insert the lead wire 2 into the stomach through the needle tip of the injection needle 1. Use a metal wire loop to cover the lead wire 2 and pull the lead wire 2 out of the mouth. Then, separate the endoscope from the lead wire 2, and connect the PEG feeding tube 10 through the protective sleeve 401 to the lead wire 2. Then, pull the other end of the lead wire 2 to pull the PEG feeding tube 10 into the stomach. For adults, fix the protective sleeve 401 according to the scale at a distance of 40cm from the incisors (or refer to CT to calculate the insertion depth of the stoma tube and the protective sleeve 401). Continue to pull the gastrostomy tube from the outside of the abdominal wall. At this time, the tear-off 404 will break, the stoma tube will be released, and the entire gastrostomy process will be completed. After the tear-off 404 breaks, the protective sleeve 401 can be pulled out of the esophagus and discarded. Finally, connect the PEG components to complete the PEG operation.

[0039] Example 2

[0040] Reference Figure 3 An improved gastrostomy device includes a lead wire 2, the upper end of which is connected to a PEG feeding tube 10 via a connecting component 3. The connecting component 3 includes a connecting plate 7, which is installed at the lower end of the PEG feeding tube 10. A connecting insert 6 is fixedly installed at the lower end of the connecting plate 7, and the upper end of the guide is detachably inserted into the connecting insert 6.

[0041] The connector 6 has a silicone positioning block inside, which presses and fixes the upper end of the wire 2. The silicone positioning block has anti-slip texture on the end near the wire 2.

[0042] By inserting the upper end of the wire 2 into the connecting sleeve 6 and pressing the upper end of the wire 2 with the silicone positioning block, the wire 2 and the connecting sleeve 6 are positioned. Furthermore, by setting anti-slip texture, the positioning effect of the silicone positioning block on the wire 2 can be improved. Through the above design, the wire 2 and the connecting sleeve 6 can be quickly assembled and disassembled.

[0043] A positioning tube 8 is fixedly installed on the upper end of the connecting plate 7. The lower end of the PEG feed tube 10 is inserted into the positioning tube 8, and the bottom of the PEG feed tube 10 is detachably fixed to the positioning tube 8 by a positioning rod 9. The positioning rod 9 is threaded and the thread of the positioning rod 9 passes through the positioning tube 8. The end of the positioning rod 9 near the inside of the positioning tube 8 is tightly attached to the bottom outer end face of the PEG feed tube 10.

[0044] By unscrewing the positioning rod 9, the PEG feed tube 10 can be separated from the positioning insert 8, and then the PEG feed tube 10 can be pulled out from the positioning insert 8, thereby achieving quick assembly and disassembly of the PEG feed tube 10 and the connecting insert 6.

[0045] The above design facilitates quick assembly and disassembly of the PEG feed tube 10 and the wire 2.

[0046] Percutaneous endoscopic gastrostomy (PEG) is an effective method for long-term enteral nutrition support. The pull-out method is more commonly used, but for patients with head and neck tumors, this method can lead to tumor implantation in the abdominal wall in up to 9% of cases. This invention adds a protective component 4 to the existing pull-out gastrostomy device, which can reduce tumor implantation caused by the pull-out method, avoid mucosal damage and tumor bleeding, and reduce the incidence of local infection, thus improving the safety of the method and enhancing clinical treatment outcomes.

[0047] The advantages of this utility model are:

[0048] ① It maintains the original pull-out gastrostomy procedure, allowing surgeons to skillfully apply the technique; ② The protective sheath 401 isolates tumors in the oropharynx and esophagus, preventing tumor implantation on the abdominal wall during the procedure; ③ The protective sheath 401 protects the tumor tissue in the oropharynx and esophagus from direct friction by the stoma tube, reducing bleeding; ④ The protective sheath 401 protects the stoma tube, preventing bacteria from the oropharynx and esophagus from being pulled to the abdominal wall and causing infection; ⑤ The length and width of the protective sheath 401 are compatible with most pull-out gastrostomy consumables available on the market; ⑥ It is low-cost and easy to promote.

[0049] This invention reduces the probability of infection, bleeding, and tumor implantation, increasing safety while expanding the indications for the original pull-out gastrostomy method.

[0050] This invention is suitable for people undergoing gastrostomy, as follows:

[0051] 1. Nervous system diseases: Primarily neurological disorders, such as motor neuron disease, post-stroke sequelae, bulbar palsy, dementia, Parkinson's disease, multiple sclerosis, coma, etc. Various myopathies leading to dysphagia. Anorexia nervosa.

[0052] 2. Anatomical factors: Trauma, esophageal cancer, nasopharyngeal carcinoma, tongue cancer, maxillofacial tumors, etc., can cause difficulty in eating.

[0053] 3. Systemic diseases: These can lead to severe malnutrition and require nutritional support.

[0054] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0055] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0056] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A modified gastrostomy device comprising an injection needle (1), characterized in that, The injection needle (1) is provided with a guide wire (2) penetrating therethrough, the upper end of the guide wire (2) is connected with a PEG feeding tube (10), a blocking block (5) is fixedly sleeved on the top of the PEG feeding tube (10), a protection assembly (4) is sleeved on the outer end of the PEG feeding tube (10), and the blocking block (5) is located inside the protection assembly (4).

2. The improved gastrostomy device according to claim 1, wherein The upper end of the guide wire (2) is connected with the PEG feeding tube (10) through a connecting assembly (3).

3. The improved gastrostomy device according to claim 2, wherein The connecting assembly (3) comprises a connecting plate (7), the connecting plate (7) is installed at the lower end of the PEG feeding tube (10), a connecting plug (6) is fixedly installed at the lower end of the connecting plate (7), and the upper end of the connecting plug (6) is detachably inserted into the connecting plug (6).

4. The improved gastrostomy device according to claim 3, wherein A silica gel positioning block is arranged in the connecting plug (6), the upper end of the guide wire (2) is extruded and fixed by the silica gel positioning block, and anti-skid lines are arranged on one end of the silica gel positioning block close to the guide wire (2).

5. The improved gastrostomy device according to claim 4, wherein A positioning plug (8) is fixedly installed at the upper end of the connecting plate (7), the lower end of the PEG feeding tube (10) is inserted into the positioning plug (8), the bottom of the PEG feeding tube (10) is detachably fixed with the positioning plug (8) through a positioning rod (9), the positioning rod (9) is provided with threads, the threads of the positioning rod (9) penetrate the positioning plug (8), and the inner end of the positioning rod (9) close to the positioning plug (8) is tightly attached to the outer end surface of the bottom of the PEG feeding tube (10).

6. The improved gastrostomy device according to claim 1, wherein The protection assembly (4) comprises a protection sleeve (401), the protection sleeve (401) is sleeved on the PEG feeding tube (10), the upper end of the protection sleeve (401) is conical, a front port (405) is formed at the upper end of the protection sleeve (401), and a rear port (402) is formed at the lower end of the protection sleeve (401).

7. The improved gastrostomy device according to claim 6, wherein An easy-to-tear opening (404) is arranged at the upper end of the protection sleeve (401) and on the side end surface of the conical part.

8. The improved gastrostomy device according to claim 7, wherein The side end surface of the protection sleeve (401) is provided with an identification scale (403) arranged in parallel with the vertical direction.

9. The improved gastrostomy device according to claim 8, wherein The diameter of the front port (405) is 1mm, and the diameter of the rear port (402) is 2cm.

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