Special biting device set for digestive endoscopic surgery

By designing a digestive endoscopic surgical mouthbiter set that integrates tracheal catheter fixation and oral support functions, the problems of tracheal catheter displacement and tooth loss are solved, and a safe and simplified general anesthesia endoscopic surgery operation is achieved.

CN120420102APending Publication Date: 2025-08-05SHANGHAI EAST HOSPITAL EAST HOSPITAL TONGJI UNIV SCHOOL OF MEDICINE
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Patent Information

Application Number
CN202510922113.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-04
Publication Date
2025-08-05

AI Technical Summary

Technical Problem

In existing digestive endoscopic surgery, the tracheal catheter is prone to displacement, resulting in postoperative throat tissue damage or respiratory disorders, and bare hands in anesthesia can easily cause tooth loss and temporomandibular joint damage.

Method used

A special mouthpiece set for digestive endoscopic surgery is designed, including the mouthpiece body, a removable tooth pad opener and a tracheal intubation fixator, which integrates the tracheal catheter fixation structure and oral support function, and the tracheal catheter fixation is achieved by rotating the knob to avoid bare hands.

Benefits of technology

Effectively fix the tracheal catheter, reduce the risk of dislocation, reduce the risk of tooth looseness and temporomandibular joint injury, simplify the surgical preparation process, and eliminate interference from traditional fixation devices.

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Abstract

The invention relates to the field of medical instruments, in particular to a biting device set special for a digestive endoscopic surgery. The set comprises a bite device main body, a bite block spreader and a trachea cannula fixer. A lip pressing baffle plate of the biting device main body is provided with an endoscope hole site, a tracheal catheter hole site and a limiting groove; the detachable bite block spreader is inserted into a baffle groove to maintain the bite block in an open state, so that an anesthetic patient is prevented from opening the bite block by hands; the oral and nasal trachea cannula fixator is assembled through the limiting groove, the rotary knob is rotated to drive the baffle to clamp a catheter, and a traditional adhesive tape fixing mode is replaced. During use, the body is bent and placed in an oral cavity, the dilator is inserted to fix the position of the bite block, and then the trachea fixator is assembled as required to lock the catheter. The device integrates oral cavity supporting and catheter fixing functions, reduces catheter displacement risks and operation complications, and is suitable for general anesthesia endoscopic surgery.
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Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to a special bite device set for digestive endoscopic surgery. Background Art

[0002] The traditional gastroscope mouthpiece is mainly composed of the mouthpiece body and the fixing rope (refer to Figure 14-15 ), suitable for routine upper gastrointestinal endoscopy. With the increasing application of general anesthesia and endotracheal intubation in upper gastrointestinal endoscopic surgery, the existing mouthpieces have shown obvious shortcomings:

[0003] First, there is a lack of dedicated endotracheal tube fixation structure (reference Figure 16 ), the endotracheal tube is easily displaced, resulting in postoperative throat tissue damage or respiratory impairment risk; secondly, under anesthesia, the doctor needs to manually open the mouth and place a mouthpiece (commonly known as the "scissor hand operation", refer to Figure 17 ), which can easily lead to tooth loss and temporomandibular joint damage (reference Figure 18 These procedural risks limit its applicability in procedures requiring endotracheal intubation. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art, such as displacement of tracheal tube, easy tooth loosening and falling, and dislocation of the temporomandibular joint, and to propose a special bite device set for digestive endoscopic surgery.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A special bite device set for digestive endoscopic surgery, comprising a bite device body, a lip pressure baffle and upper and lower double-row bite pads fixed on the back of the bite device body;

[0007] The lip baffle is provided with a central endoscope hole, and a group of spreader grooves are provided on the top and bottom of the inner wall of the endoscope hole, with two being provided in each group. The lip baffle is provided with tracheal tube holes symmetrically distributed on both sides of the endoscope hole, and the lip baffle is provided with a tracheal tube fixer limiting groove opened along the long axis direction;

[0008] A detachable dental pad stretcher includes a stretcher body and a stretcher stopper disposed at the tail end. When the stretcher body is inserted into the stretcher groove, the dental pad is maintained in an open state.

[0009] An oral tracheal tube holder comprises an oral tracheal tube stopper, an oral tracheal tube fixing baffle, and an oral tracheal tube fixing knob. One end of the oral tracheal tube stopper is provided with an oral tracheal tube fixing hole. A threaded hole structure is provided on the sidewall of the oral tracheal tube fixing hole. One end of the oral tracheal tube fixing knob is threadedly inserted into the interior of the oral tracheal tube fixing hole through the threaded hole. The oral tracheal tube fixing baffle is located inside the oral tracheal tube fixing hole and is connected to one end of the oral tracheal tube fixing knob.

[0010] The nasotracheal tube fixer includes a nasotracheal tube limiter, a nasotracheal tube fixing knob and a nasotracheal tube fixing baffle. A nasotracheal tube fixing hole is provided at one end of the nasotracheal tube limiter, a threaded hole structure is provided on the side wall of the nasotracheal tube fixing hole, one end of the nasotracheal tube fixing knob is threadedly penetrated into the interior of the nasotracheal tube fixing hole through the threaded hole, and the nasotracheal tube fixing baffle is located inside the nasotracheal tube fixing hole and connected to one end of the nasotracheal tube fixing knob.

[0011] In a possible design, two dental pad spreaders are provided, corresponding to two groups of spreader grooves respectively.

[0012] In a possible design, the mouthpiece body has a vertically symmetrical and left-right symmetrical structure.

[0013] In a possible design, the oral tracheal tube fixing baffle is slidably disposed on the inner wall of the oral tracheal tube fixing hole and is rotatably connected to the end of the oral tracheal tube fixing knob.

[0014] In a possible design, the nasotracheal tube fixing baffle is slidably disposed inside the nasotracheal tube fixing hole and is rotatably connected to the end of the nasotracheal tube fixing knob.

[0015] In a possible design, holes for fixing ropes are provided at both ends of the pressure lip baffle.

[0016] In one possible design, the cross-sectional shapes of the oral endotracheal tube stopper and the nasotracheal tube stopper correspond to the limiting groove of the endotracheal tube fixator.

[0017] In a possible design, the outer edge of the pressure lip baffle adopts a rounded transition treatment.

[0018] In the present application, during specific use, by rotating the nasotracheal tube fixing knob and the oral tracheal tube fixing knob, the corresponding nasotracheal tube fixing baffle and the oral tracheal tube fixing baffle can be driven to move inward or outward, thereby fixing the tracheal tube, and the position of the nasotracheal tube fixing baffle and the nasotracheal tube fixing hole will not rotate accordingly.

[0019] In the present invention, the bite device set for digestive endoscopic surgery can fix the tracheal tube by providing a hole position dedicated to the tracheal tube, thereby eliminating the need to use tools such as tape to fix it and preventing the possibility of displacement of the tracheal tube.

[0020] In the present invention, the bite block set for digestive endoscopic surgery, through the deformable bite block and the detachable spreader, can be conveniently placed manually by the doctor after the patient is anesthetized, thereby reducing the risk of loose teeth and loss of the patient's teeth and damage or dislocation of the temporomandibular joint.

[0021] In the present invention, when in use, the functions of catheter fixation and oral support are integrated into a single instrument, simplifying the instrument preparation process for general anesthesia endoscopic surgery and eliminating the spatial interference problem between the traditional mouthpiece and the tracheal tube fixing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front view of the structure of the mouthpiece body of a special mouthpiece set for digestive endoscopic surgery proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the left side structure of the mouthpiece body of a special mouthpiece set for digestive endoscopic surgery proposed by the present invention;

[0024] Figure 3 This is a schematic diagram of the top view of the mouthpiece body of a special mouthpiece set for digestive endoscopic surgery proposed by the present invention;

[0025] Figure 4 This is a front view structural diagram of a bite block expander of a bite block set for digestive endoscopic surgery proposed by the present invention;

[0026] Figure 5 This is a left-side structural schematic diagram of a bite block expander of a bite block set for digestive endoscopic surgery proposed by the present invention;

[0027] Figure 6 This is a schematic diagram of the top view of the structure of a bite block expander of a bite block set for digestive endoscopic surgery proposed by the present invention;

[0028] Figure 7 This is a front view structural diagram of an oral endotracheal tube holder for a special bite device set for digestive endoscopic surgery proposed by the present invention;

[0029] Figure 8 This is a left-side structural schematic diagram of an orotracheal tube holder for a special bite set for digestive endoscopic surgery proposed by the present invention;

[0030] Figure 9 This is a schematic diagram of the top view of the structure of an orotracheal tube holder for a special bite device set for digestive endoscopic surgery proposed by the present invention;

[0031] Figure 10 This is a front view structural diagram of a nasotracheal intubation holder for a special bite device set for digestive endoscopic surgery proposed by the present invention;

[0032] Figure 11 This is a left-side structural schematic diagram of a nasotracheal intubation holder for a special bite device set for digestive endoscopic surgery proposed by the present invention;

[0033] Figure 12 This is a schematic diagram of the top view of the structure of a nasotracheal intubation holder for a special bite device set for digestive endoscopic surgery proposed by the present invention;

[0034] Figure 13 This is a schematic diagram of the structure of a special bite device set for digestive endoscopic surgery in different states proposed by the present invention;

[0035] Figure 14 It is a side view schematic diagram of the existing product of the present invention;

[0036] Figure 15 This is a front view schematic diagram of an existing product of the present invention;

[0037] Figure 16 A schematic diagram of the displacement of the tracheal tube during conventional surgery according to the present invention;

[0038] Figure 17 This is a schematic diagram of a doctor opening a patient's mouth under conventional anesthesia according to the present invention;

[0039] Figure 18 A schematic diagram of a temporomandibular joint dislocation of an existing patient in the present invention;

[0040] Figure 19 Schematic diagram of a conventional tracheal tube fixing method of the present invention;

[0041] Figure 20 It is a schematic diagram of the existing placement of the bite device of the present invention.

[0042] In the figure: 1. Bite piece body; 11. Lip pressure baffle; 12. Endotracheal tube holder limit groove; 13. Endotracheal tube hole; 14. Fixing rope hole; 15. Distant groove; 16. Endoscope hole; 17. Bite piece; 2. Distant piece; 21. Distant body; 22. Distant limiter; 3. Oral tracheal tube holder; 31. Oral tracheal tube limiter; 32. Oral tracheal tube fixing hole; 33. Oral tracheal tube fixing baffle; 34. Oral tracheal tube fixing knob; 4. Nasal tracheal tube holder; 41. Nasal tracheal tube limiter; 42. Nasal tracheal tube fixing knob; 43. Nasal tracheal tube fixing hole; 44. Nasal tracheal tube fixing baffle. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0044] In one embodiment: Figure 1-12 A mouthpiece set includes: a mouthpiece body 1, a tooth pad expander 2, an oral endotracheal tube holder 3 and a nasal endotracheal tube holder 4.

[0045] refer to Figure 1-3 The main structure of the bite block body 1 is symmetrical in both vertical and horizontal directions, and has no direction difference when in use. It consists of a lip pressure baffle 11 and two bite pads 17. The outer edge of the lip pressure baffle 11 is provided with a rounded transition treatment, and two sets of functional holes are set on its surface:

[0046] The endoscope hole 16 is centrally located and serves as a passage for a gastroscope and a duodenoscope. Two sets of spreader grooves 15 are symmetrically arranged at the top and bottom of the inner wall, with two in each set, for use with a dental pad spreader 2.

[0047] The tracheal tube holes 13 are symmetrically distributed on both sides of the endoscope hole 16 and are used for the passage of the tracheal tube during oral tracheal intubation;

[0048] The fixing rope holes 14 are provided at both ends of the pressure lip baffle 11 and are used as passages for the fixing ropes.

[0049] The endotracheal tube holder limiting groove 12 is opened along the long axis direction of the lip pressure baffle 11 and forms a sliding fit with the limiters of the oral endotracheal tube holder 3 and the nasal endotracheal tube holder 4.

[0050] The bite pad 17 is fixed to the back of the lip pressure baffle 11 and arranged in an upper and lower arrangement.

[0051] refer to Figure 4-6The dental pad spreader 2 includes a spreader body 21 and a spreader stopper 22 at the rear end. During operation, the spreader body 21 is inserted into the same set of spreader grooves 15 to fix the dental pad in place. The stopper at the rear end prevents the dental pad spreader 2 from being inserted too deeply, making it easier to remove after the procedure. There are two dental pad spreaders 2, one for each set of spreader grooves 15.

[0052] refer to Figure 7-9 The oral tracheal tube fixer 3 is composed of an oral tracheal tube stopper 31 , an oral tracheal tube fixing baffle 33 and an oral tracheal tube fixing knob 34 .

[0053] The shape of the oral tracheal tube stopper 31 corresponds to the tracheal tube holder limit groove 12 of the lip pressure baffle 11. When in use, it is slid into the tracheal tube holder limit groove 12 for assembly, and then the tracheal tube is inserted into the fixing hole 32. The oral tracheal tube fixing knob 34 is rotated to drive the oral tracheal tube fixing baffle 33 to advance along the thread, so that the baffle clamps and fixes the tube.

[0054] refer to Figure 10-12 The nasotracheal tube fixer 4 is composed of a nasotracheal tube limiter 41, a nasotracheal tube fixing knob 42 and a nasotracheal tube fixing baffle 44.

[0055] The shape of the nasotracheal tube stopper 41 corresponds to the tracheal tube fixer limit groove 12 of the lip pressure baffle 11. When in use, it is slid into the tracheal tube fixer limit groove 12 for assembly, and then the tracheal tube is inserted into the fixing hole 32. The nasotracheal tube fixing knob 42 is rotated to drive the nasotracheal tube fixing baffle 33 to advance along the thread, thereby clamping and fixing the tube with the baffle.

[0056] This application can be used in the field of medical devices, and can also be used in other fields applicable to this application.

[0057] In another embodiment: Figure 13 , a special bite device set for digestive endoscopic surgery, which is applied to the field of medical instruments. The assembly state of the bite device is:

[0058] AB state: bend the mouthpiece body 1 to facilitate the placement of the mouthpiece pad 17 in the patient's mouth;

[0059] State C: Insert the dental spacer 2 into the spacer groove 15 to fix the bite block. It can be removed after the operation.

[0060] D state: After inserting the bite block spreader 2, the orotracheal tube stopper 31 of the orotracheal tube holder 3 and the tracheal tube holder stopper groove 12 of the mouthpiece body 1 are assembled and can be disassembled after the operation;

[0061] State E: After inserting the bite block spreader 2, the nasotracheal tube stopper 41 of the nasotracheal tube holder 4 and the tracheal tube holder limiter groove 12 of the mouthpiece body 1 are combined and can be disassembled after the operation is completed.

[0062] The drawings in this application are for illustrative purposes only. The sizes and shapes of the components shown are not intended to be limiting, but are merely for illustrative purposes. In actual implementation, the components may be appropriately configured and adjusted based on specific needs and actual conditions.

[0063] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A special bite device set for digestive endoscopic surgery, characterized in that: include: The mouthpiece body (1) comprises a lip pressure baffle (11) and upper and lower double-row mouthpiece pads (17) fixed to the back thereof; The lip baffle (11) is provided with a central endoscope hole (16), and a group of spreader grooves (15) are provided at the top and bottom of the inner wall of the endoscope hole (16), and each group is provided with two, and the lip baffle (11) is provided with tracheal tube holes (13) symmetrically distributed on both sides of the endoscope hole (16), and the lip baffle (11) is provided with a tracheal tube fixer limiting groove (12) opened along the long axis direction; A detachable tooth pad expander (2) comprises an expander body (21) and an expander stopper (22) arranged at the tail end, wherein the expander body (21) maintains the open state of the bite tooth pad (17) when inserted into the expander groove (15); It also includes an oral endotracheal tube holder (3) and a nasal endotracheal tube holder (4).

2. A special bite device set for digestive endoscopic surgery according to claim 1, characterized in that: An oral tracheal tube holder (3) comprises an oral tracheal tube stopper (31), an oral tracheal tube fixing baffle (33) and an oral tracheal tube fixing knob (34), wherein one end of the oral tracheal tube stopper (31) is provided with an oral tracheal tube fixing hole (32), a side wall of the oral tracheal tube fixing hole (32) is provided with a threaded hole structure, one end of the oral tracheal tube fixing knob (34) is threadedly penetrated into the interior of the oral tracheal tube fixing hole (32) through the threaded hole, and the oral tracheal tube fixing baffle (33) is located inside the oral tracheal tube fixing hole (32) and is connected to one end of the oral tracheal tube fixing knob (34).

3. The bite device set for digestive endoscopic surgery according to claim 1, characterized in that: A nasotracheal tube fixer (4) comprises a nasotracheal tube stopper (41), a nasotracheal tube fixing knob (42) and a nasotracheal tube fixing baffle (44), wherein one end of the nasotracheal tube stopper (41) is provided with a nasotracheal tube fixing hole (43), a side wall of the nasotracheal tube fixing hole (43) is provided with a threaded hole structure, one end of the nasotracheal tube fixing knob (42) is threadedly penetrated into the interior of the nasotracheal tube fixing hole (43) through the threaded hole, and the nasotracheal tube fixing baffle (44) is located inside the nasotracheal tube fixing hole (43) and connected to one end of the nasotracheal tube fixing knob (42).

4. The bite device set for digestive endoscopic surgery according to claim 1, characterized in that: The tooth pad spreaders (2) are provided with two, respectively corresponding to the two groups of spreader grooves (15).

5. The bite device set for digestive endoscopic surgery according to claim 2, characterized in that: The mouthpiece body (1) has a vertically symmetrical and left-right symmetrical structure.

6. The bite device set for digestive endoscopic surgery according to claim 1, characterized in that: The oral tracheal tube fixing baffle (33) is slidably arranged on the inner wall of the oral tracheal tube fixing hole (32) and is rotatably connected to the end of the oral tracheal tube fixing knob (34).

7. The bite device set for digestive endoscopic surgery according to claim 1, characterized in that: The nasotracheal tube fixing baffle (44) is slidably arranged inside the nasotracheal tube fixing hole (43) and is rotatably connected to the end of the nasotracheal tube fixing knob (42).

8. The bite device set for digestive endoscopic surgery according to claim 1, characterized in that: Rope fixing holes (14) are provided at both ends of the lip pressure baffle (11).

9. The bite device set for digestive endoscopic surgery according to claim 1, characterized in that: The cross-sectional shapes of the oral endotracheal tube stopper (31) and the nasal endotracheal tube stopper (41) correspond to the endotracheal tube fixer stopper groove (12).

10. The bite device set for digestive endoscopic surgery according to claim 1, characterized in that: The outer edge of the lip pressure baffle (11) is processed with a rounded transition.