Light-emitting guide core adaptive to surgical pipeline
By using a light-emitting guide to indicate the direction of the gastrointestinal tube, the problem of tube placement during minimally invasive surgery has been solved, achieving accurate positioning and efficient operation.
Patent Information
- Application Number
- CN202422834724.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-11-20
AI Technical Summary
In minimally invasive surgery, it is difficult for doctors to determine the direction and location of the intestinal and gastric tubes by observation or touch, which makes the placement process complicated, time-consuming, and increases the difficulty of the surgery.
Design a light-emitting guide core adapted for surgical tubes, comprising a light-emitting guide core body and a guide core seat. Utilizing optical fibers and a light source emitter, the light indicates the direction of the tube body, achieving accurate positioning.
It improves the accuracy and efficiency of catheter placement in minimally invasive surgery, reduces surgical time, and decreases reliance on physician experience.
Smart Images

Figure CN223831447U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to surgical aids, specifically, to a light-emitting core adapted for surgical tubes. Background Technology
[0002] Patients who are unable to eat independently after surgery or who are unconscious require nasogastric tube insertion. However, in current clinical practice, with open chest cavity surgery, doctors can directly judge the direction of tube insertion by touch, thus completing the insertion and ensuring that the gastric tube is positioned in the stomach for supply and the intestinal tube is positioned in the intestine for supply.
[0003] However, considering the speed of postoperative healing and the infection risks associated with open surgery, current clinical practice tends to favor minimally invasive surgical approaches. However, when minimally invasive surgery requires catheter placement, the process becomes extremely difficult due to the very small surgical window, necessitating precise intestinal cannulation. Figure 1 As shown, the tube must pass through both the cardia and pylorus to reach the target location. In some double-tube insertion surgeries, the gastric tube segment must be positioned precisely between the cardia and pylorus (with the nutrient solution outlet near the pylorus). Therefore, regardless of whether it's a single or double tube, it's difficult to accurately insert the tube through both cardia if the surgeon cannot determine the tube's direction by observation or touch. Taking the more complex double-tube insertion as an example, in minimally invasive procedures, the surgeon cannot determine the direction of the intestinal segment (especially the fluid outlet) and the location of the port by touch, nor whether the gastric tube segment has reached the appropriate position between the cardia and pylorus. Therefore, the insertion process often severely tests the surgeon's experience and ability, wasting a significant amount of surgical time and increasing the difficulty of the procedure.
[0004] The same problem exists in other clinical practices involving catheter placement. Utility Model Content
[0005] The present invention aims to overcome the above-mentioned defects and provide a light-emitting core for making the tube emit light, which can be directly adapted to various existing surgical tubes without redesigning or modifying existing tubing.
[0006] The present invention provides a light-emitting guide core adapted for surgical tubes, characterized in that it comprises a light-emitting guide core body and a guide core seat;
[0007] The aforementioned light-emitting core body includes an optical fiber and an optical fiber sheath layer that wraps around the optical fiber.
[0008] The aforementioned guide core holder includes a guide core mounting part and a light source emitting part;
[0009] The aforementioned guide core mounting section is a channel for matching the light-emitting guide core body;
[0010] The end of the aforementioned channel is directly opposite the light source emitting end of the light source emitting unit.
[0011] Furthermore, the light-emitting guide core adapted for surgical tubing provided by this utility model is characterized in that:
[0012] The aforementioned light-emitting core body has a flexible and cuttable structure;
[0013] and / or
[0014] The aforementioned light-emitting core body has one or more light-emitting points.
[0015] Furthermore, the light-emitting guide core adapted for surgical tubing provided by this utility model is characterized in that:
[0016] The aforementioned optical fiber sheath layer is made of elastic medical rubber.
[0017] Furthermore, the light-emitting guide core adapted for surgical tubing provided by this utility model is characterized in that:
[0018] The aforementioned optical fiber sheath layer is made of stainless steel, nickel-titanium alloy, or high-tensile stainless steel.
[0019] Furthermore, the light-emitting guide core adapted for surgical tubing provided by this utility model is characterized in that:
[0020] The aforementioned optical fiber sheath layer includes an inner sheath layer and an outer sheath layer;
[0021] The aforementioned inner sheath layer is made of elastic material;
[0022] The aforementioned outer sheath is made of metal.
[0023] Furthermore, the light-emitting guide core adapted for surgical tubing provided by this utility model is characterized in that:
[0024] The inner surface of the channel of the aforementioned matching light-emitting core body has a resistance-enhancing pattern;
[0025] and / or
[0026] The outer surface of the aforementioned light-emitting core body has resistance-increasing textures in some or all of its parts;
[0027] Among them, the aforementioned resistance-increasing patterns and resistance-increasing textures are matched.
[0028] Furthermore, the light-emitting guide core adapted for surgical tubing provided by this utility model is characterized in that:
[0029] The head end of the aforementioned guide core has a structure that matches the inlet end of the surgical tubing.
[0030] Furthermore, the light-emitting guide core adapted for surgical tubing provided by this utility model is characterized in that:
[0031] The outer view of the head end of the aforementioned guide core seat is a multi-stage tower structure;
[0032] The inner wall of the aforementioned surgical conduit inlet is designed to match the structure of a multi-stage control tower.
[0033] Furthermore, the light-emitting guide core adapted for surgical tubing provided by this utility model is characterized in that:
[0034] The head end of the aforementioned guide core seat has an expandable inner diameter structure. Based on the expansion and contraction of the inner diameter of the head end of the guide core seat, the channel can be scaled up or down.
[0035] Furthermore, the light-emitting guide core adapted for surgical tubing provided by this utility model is characterized in that:
[0036] The head end of the aforementioned guide core seat has an elastic multi-piece structure, which is inwardly curved like a bullet shape compared to the main body of the guide core seat.
[0037] The center of the aforementioned flexible multi-piece structure is a channel that matches the light-emitting core body;
[0038] It also includes the screw clamp sleeve;
[0039] The head of the aforementioned tightening sleeve is bent inward, and the tail has internal threads;
[0040] The main body of the aforementioned guide core seat has an external thread at the end that connects to the head end of the guide core seat;
[0041] The aforementioned internal and external threads are matched. During the mutual meshing and tightening process, the screw clamp moves in the direction of the main body of the guide core seat, and its head gradually tightens the elastic multi-piece structure. During the reverse unscrewing process, the screw clamp moves in the opposite direction of the main body of the guide core seat, and the elastic multi-piece structure is loosened.
[0042] Furthermore, the light-emitting guide core adapted for surgical tubing provided by this utility model is characterized in that:
[0043] The outer surface of the head end of the aforementioned guide core seat has a resistance-increasing element or a limiting element.
[0044] Furthermore, the light-emitting guide core adapted for surgical tubing provided by this utility model is characterized in that:
[0045] The end of the aforementioned channel, where it intersects with the light source emission end, has a focusing structure.
[0046] Furthermore, the light-emitting guide core adapted for surgical tubing provided by this utility model is characterized in that:
[0047] The aforementioned light-focusing structure is prism-shaped. Attached Figure Description
[0048] Figure 1 This embodiment provides a schematic diagram of the structure of a light-emitting core adapted for surgical tubing;
[0049] Figure 2 This embodiment provides a schematic diagram of the structure of a light-emitting guide core body for use with surgical tubing.
[0050] Figure 3 This embodiment provides a schematic diagram of the structure of a light-emitting guide core body for use with surgical tubing.
[0051] Figure 4 This embodiment provides a schematic diagram of a resistance-enhancing structure for a light-emitting core adapted for surgical tubing;
[0052] Figure 5 This embodiment provides a schematic diagram of a resistance-enhancing structure for a light-emitting core adapted for surgical tubing;
[0053] Figure 6 This embodiment provides a schematic diagram of a locking scheme for a light-emitting guide core adapted for surgical tubing;
[0054] Figure 7 This embodiment provides a schematic diagram illustrating the installation effect of a light-emitting guide core adapted for surgical tubing.
[0055] Figure 8 This embodiment provides a schematic diagram of a locking structure for a light-emitting guide core adapted for surgical tubing;
[0056] Figure 9 This embodiment provides a schematic diagram illustrating the installation effect of a frustum structure for a light-emitting guide core adapted to surgical tubing.
[0057] Figure 10 1. Working principle diagram of traditional intubation; Detailed Implementation
[0058] This invention can be implemented in many ways and has various embodiments, therefore specific embodiments are illustrated and described in the accompanying drawings. However, this is not intended to limit the invention to specific implementations, but should be understood to include all modifications, equivalents, and even substitutions that fall within the spirit and technical scope of this invention.
[0059] like Figure 1 As shown, the light-emitting guide core for the surgical conduit 10 provided in this embodiment includes a light-emitting guide core body 100 and a guide core seat 200.
[0060] like Figure 2 As shown, the light-emitting core body has a flexible and cuttable structure, which includes an optical fiber 110 and an optical fiber sheath layer 120 wrapped around the optical fiber.
[0061] The fiber optic sheath is made of elastic medical rubber. The elastic surface protects the fiber while also improving its flexibility.
[0062] In another experimental example, the fiber optic sheath is made of metal materials such as stainless steel, nickel-titanium alloy, or high-tensile stainless steel. In addition to protecting the fiber and providing its bendability, the metal sheath also provides a certain degree of rigidity, thus achieving a function similar to a guide wire.
[0063] In another experimental example, such as Figure 3 As shown, the optical fiber sheath 120 includes an inner sheath 121 and an outer sheath 122.
[0064] The inner sheath layer 121 is made of an elastic material;
[0065] The outer sheath layer 122 is made of metallic material, thereby improving toughness while achieving rigidity.
[0066] In other experimental examples, the light-emitting core body has more than one light-emitting point. The arrangement of the light-emitting points can be determined according to the basic configuration of the gastrointestinal tube itself. For example, based on the fact that the distance from the end of the traditional tube to the outlet hole is about 1 cm, two light-emitting points are set at the end and the outlet hole respectively.
[0067] Multiple light-emitting positions can be achieved by setting transparent material at the corresponding positions of the sheath layer or by directly partially peeling off the sheath at that position to expose the optical fiber.
[0068] like Figure 1 As shown, the guide core holder 200 includes a guide core mounting part 210 and a light source emitting part 220;
[0069] The guide core mounting part 210 is a channel 211 that matches the light-emitting guide core body, that is, during use, such as Figure 7 As shown, the light-emitting core body 100 can be fixed by inserting it into the channel. Generally, the inner surface is preferably made of a material such as silicone rubber, which can increase the adhesion between the materials and make the core body less likely to slip out.
[0070] In one experimental case, such as Figure 4 As shown, the inner surface of the channel of the matching light-emitting core body has a wave-shaped resistance-increasing pattern 2111, which further increases the resistance to prevent the core body from slipping off.
[0071] In another experimental case, such as Figure 5 As shown, the outer surface of the light-emitting core body has resistance-increasing texture 2001 in part or all. Generally, if the light-emitting core body is of fixed length, it is sufficient to have texture only at the head end, that is, the end that mates with the channel. However, considering that the light-emitting core body can be a roll product without a fixed length, and can be cut as needed during use, it is preferable to use a scheme in this design where the entire length is textured, so that the anti-slip effect can be achieved regardless of which end is the beginning.
[0072] Of course, to improve the anti-slip effect, one can use methods such as... Figure 4 The channel, in conjunction with, Figure 5 The core bodies achieve a more stable mutual fixation result through their relative textures.
[0073] In another experimental example, an external clamping device is used to achieve mutual confinement between the guide core mounting part and the guide core. For example... Figure 8 As shown, the head end of the guide core seat has an expandable inner diameter structure. Based on the expansion and contraction of the inner diameter of the head end of the guide core seat, the scaling of the channel is achieved. Specifically, the head end 201 of the guide core seat is composed of an elastic multi-piece structure 2011, which has an inwardly curved bullet shape with the main body of the guide core seat.
[0074] The center of the flexible multi-piece structure 2011 is the channel 211 that matches the light-emitting core body;
[0075] It also includes a 300mm screw clamp sleeve;
[0076] The head 301 of the tightening sleeve 300 is bent inward, and the tail 302 has internal threads;
[0077] The main body 202 of the guide core seat 200 has an external thread 2021 at the end that connects to the head end 201 of the guide core seat;
[0078] The internal thread matches the external thread, as shown by the arrow. During the tightening process, the screw clamp moves in the direction of the main body of the guide core seat, and its head gradually tightens the elastic multi-piece structure. During the unscrewing process, the screw clamp moves in the opposite direction of the main body of the guide core seat, and the elastic multi-piece structure is loosened.
[0079] like Figure 1 As shown, the end of the channel 211 is directly opposite the light source emitting end of the light source emitting part, so that the laser from the emitting end directly enters the channel.
[0080] In one experimental case, the light source is multi-colored, used to represent different length intervals or different feature representations (such as: the tip, the liquid outlet, or different intestinal / gastric tube segments). In this case, there are generally multiple optical fibers and multiple corresponding light sources, that is, different optical fibers correspond to different transmitters.
[0081] In another experimental example, the end of the channel where it intersects with the light source emission end can have a focusing structure 230. This focusing structure can be a condenser lens or a prism-like structure (such as...). Figure 7 The shape is such that all the light is directed to the end of the channel.
[0082] like Figure 7 As shown, the head end 201 of the guide core seat has a structure that matches the input end 11 of the surgical tubing 10. That is, the input end of a general surgical tubing is equipped with a similar conical connector 11 based on the needs of infusion or subsequent interventional treatment. The head end 201 of the guide core seat in this embodiment also has a conical structure, so that it can be inserted into the connector to achieve docking.
[0083] In one test example, the outer surface of the head end 201 of the guide core seat has a resistance-increasing pattern, that is, similar to... Figure 4 and Figure 5 The shape of an uneven surface;
[0084] In another experimental case, such as Figure 6 As shown, the outer surface of the head end 201 of the guide core seat has a limiting element 2012, which is an inverted C-shaped buckle, so that when it is connected to the input end 11 of the surgical tube 10, it is fixed to each other by buckling its edge.
[0085] In another test example, the head end 201 of the guide seat and the input end 11 of the surgical tube 10 are screwed together by a matching thread structure.
[0086] In another experimental case, such as Figure 9 As shown, the outer surface of the head end 201 of the guide core seat is a multi-stage tower structure; similarly, the inner wall of the surgical tube input end 11 is a shape that matches the multi-stage tower structure, thereby realizing the interlocking connection between the two. Since both materials are medical rubber materials with micro-elasticity, they can achieve an adsorption connection when nested.
[0087] During use, the guide stylet is cut according to the length of the intubation tube (the length is selected based on the patient's actual internal environment). One end of the guide stylet is inserted from the head end of the guide stylet seat, and the other end abuts against the end of the intubation tube. The head of the guide stylet seat is then embedded in the tube inlet, thus achieving the connection of the three. Power is supplied through a power socket or portable power source, allowing the guide stylet to emit light directly inside the intubation tube. When the intubation tube with the guide stylet is inserted into the stomach, it provides orientation indication of the tube body.
[0088] While the foregoing description has focused on embodiments, these are merely illustrative and do not limit the scope of the invention. Those skilled in the art will understand that various modifications and applications not illustrated above can be made without departing from the essential characteristics of the embodiments. For example, the constituent elements specifically shown in the embodiments can be implemented through modifications. Furthermore, various differences related to such modifications and applications should be interpreted as including within the scope of the invention as defined in the appended claims.
Claims
1. A light-emitting core adapted for surgical tubing, characterized in that: It includes the light-emitting core body and the core holder; The light-emitting core body includes an optical fiber and an optical fiber sheath layer that wraps around the optical fiber. The guide core base includes a guide core mounting part and a light source emitting part; The guide core mounting part is a channel that matches the light-emitting guide core body; The end of the channel is directly opposite the light source emitting end of the light source emitting part.
2. The light-emitting core adapted for surgical tubing as described in claim 1, characterized in that: The light-emitting core body has a rollable and cuttable structure; and / or The light-emitting core body has one or more light-emitting points.
3. The light-emitting core adapted for surgical tubing as described in claim 1, characterized in that: The optical fiber sheath is made of elastic medical rubber. or The optical fiber sheath is made of stainless steel, nickel-titanium alloy, or high-tensile stainless steel. or The optical fiber sheath layer includes an inner sheath layer and an outer sheath layer; The inner sheath layer is made of an elastic material; The outer sheath is made of metal.
4. The light-emitting core adapted for surgical tubing as described in claim 1, characterized in that: The inner surface of the channel of the matching light-emitting core body has a resistance-increasing pattern; and / or The outer surface of the light-emitting core body has resistance-increasing textures in some or all of its outer surface. The resistance-increasing pattern and the resistance-increasing texture are matched.
5. The light-emitting core adapted for surgical tubing as described in claim 1, characterized in that: The head end of the guide core has a structure that matches the inlet end of the surgical tubing.
6. The light-emitting core adapted for surgical tubing as described in claim 1, characterized in that: The outer view of the head end of the guide core seat is a multi-stage tower structure; The inner wall of the surgical tubing inlet is designed to match the structure of a multi-stage control tower.
7. The light-emitting core adapted for surgical tubing as described in claim 1, characterized in that: The head end of the guide core seat has an expandable inner diameter structure. Based on the expansion and contraction of the inner diameter of the head end of the guide core seat, the channel can be scaled up or down.
8. The light-emitting core adapted for surgical tubing as described in claim 1, characterized in that: The head end of the guide core seat is an elastic multi-piece structure, which is inwardly curved like a bullet shape with the main body of the guide core seat. The center of the elastic multi-piece structure is a channel that matches the light-emitting core body; It also includes the screw clamp sleeve; The head of the tightening sleeve is bent inward, and the tail has internal threads; The main body of the guide core seat has an external thread at the end that connects to the head end of the guide core seat; The internal and external threads are matched. During the mutual meshing and tightening process, the screw clamp moves in the direction of the main body of the guide core seat, and its head gradually tightens the elastic multi-piece structure. During the reverse unscrewing process, the screw clamp moves in the opposite direction of the main body of the guide core seat, and the elastic multi-piece structure is loosened.
9. The light-emitting core adapted for surgical tubing as described in claim 1, characterized in that: The outer surface of the head end of the guide core seat has a resistance-increasing element or a limiting element.
10. A light-emitting core adapted for surgical tubing as described in claim 1, characterized in that: The end of the channel intersects with the light source emission end at a location with a focusing structure.