Sleeve type protection device for reducing bending damage of endoscope light source line

Abstract

The utility model discloses a sleeved protective device for reducing bending damage of an endoscope light source line, and belongs to the technical field of medical instruments. The device comprises a universal pipe, the universal pipe is arranged on an endoscope light source line in a sleeving mode and completely covers the soft and hard combination position, one end of the universal pipe is connected with a fixator, and the other end of the universal pipe is a free end. The fixator is of a hollow structure, can be arranged on the light source line in a sleeving mode and is detachably connected with the hard connector. The universal pipe has a preset maximum bending curvature and can be freely adjusted between a linear state and a bent state along with the position change of the light source line. The device can directly sleeve the end part of the light source line, can limit the excessive bending of the light source line, protects the built-in optical fiber element, prolongs the service life, is simple in structure and easy to operate, can be directly matched with the existing light source line, and meets the clinical efficient operation requirement.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a sleeve-type protective device for reducing bending damage to the light source wire of a laparoscope. Background Technology

[0002] As a core component of laparoscopic surgery, the light source cable contains built-in fiber optic elements to provide cold light illumination for the procedure. In clinical applications, the junction of the rigid and flexible ends of the light source cable becomes a vulnerable point, easily bent and damaged due to a lack of effective support. Because of the high cost of a single light source cable, frequent repairs or replacements would impose a significant economic burden.

[0003] To alleviate these problems, clinical medical staff often employ a protective method of "manually adjusting the bending radius + holding the endoscope handle in conjunction with the instrument," attempting to reduce injury by maintaining a reasonable curvature at the end of the light source cable. However, in actual operation, the surgery is lengthy, and medical staff need to simultaneously perform instrument operations and field of vision adjustments. Holding the light source cable for extended periods can easily lead to hand fatigue, resulting in cable displacement, exceeding the preset bending radius, and causing the end to bend again, making it difficult to fundamentally solve the injury problem.

[0004] The applicant had previously proposed a technical solution for the protection of laparoscopic tubing (patent name: Multi-angle Rotation Adaptive Laparoscopic Surgical Tubing Support Tool, application number: 2025219175745). This solution uses a double-ended tubing clamp to fix the universal metal tube and the light source line in parallel, and uses the support of the universal metal tube to maintain the bending radius of the tubing. However, clinical trials have revealed that it still has technical problems such as many accessories, complicated assembly, and inconvenient use.

[0005] Therefore, developing a protective device that requires no complex accessories, can be directly fitted onto the end of the light source line, can adapt to the bending angle of the pipeline, and is stable and prevents bending has become an urgent need to solve clinical pain points. Utility Model Content

[0006] To address the problems existing in the background art, this utility model proposes a sleeve-type protective device to reduce bending damage to the endoscope light source line.

[0007] The technical solution to the technical problem solved by this utility model is as follows:

[0008] This technical solution proposes a sleeve-type protective device to reduce bending damage to the endoscopic light source cable. The light source cable includes a rigid connector and a flexible hose connected to the rigid connector, with the connection point between the rigid connector and the flexible hose being a rigid-flex joint. It also includes:

[0009] Universal tube; fitted onto the endoscope light source line and covering the soft-hard joint; one end of the universal tube is connected to a retainer, and the other end is a free end; the retainer is a hollow structure that can be fitted onto the light source line and can be detachably connected to the rigid connector.

[0010] The universal joint has a straight state and a curved state, and the universal joint has a preset maximum curvature;

[0011] The universal tube can freely adjust between a straight and curved state as the position of the light source line changes.

[0012] Preferably, the fastener includes a slit sleeve with several vertical slits in the circumferential direction; a pipe section is connected to the bottom end of the slit sleeve, and the pipe section is connected to one end of the universal tube; a conical sleeve is also fitted on the slit sleeve, and the conical sleeve is threadedly connected to the slit sleeve; when the conical sleeve is screwed, the slit sleeve can be tightened inward.

[0013] Preferably, the outer wall of the conical sleeve is provided with several anti-slip textures or anti-slip ribs.

[0014] Preferably, the universal tube is a stainless steel shower tube.

[0015] Preferably, the fastener includes a first sleeve, one end of which is fixedly connected to one end of the universal joint; a second sleeve is fitted onto the rigid connector, and the first sleeve and the second sleeve are threadedly connected.

[0016] Preferably, the inner wall of the first sleeve has an internal thread, and the outer wall of the second sleeve has an external thread that is adapted to connect with the internal thread.

[0017] Preferably, the second sleeve is able to rotate freely relative to the rigid joint.

[0018] Preferably, the second sleeve is a two-half structure, which is formed by fixing two half sleeves together.

[0019] Preferably, the fixing methods between the two half sleeves include, but are not limited to, adhesive bonding, hot melting, welding, and binding.

[0020] Preferably, the fastener is made of plastic or stainless steel.

[0021] The above technical solution has the following advantages or beneficial effects:

[0022] 1. This utility model addresses the technical problem of easy bending and damage at the junction of the soft and hard interface of the endoscope light source line. By directly sleeved and fully covering the weak area with a universal tube, and with the universal tube preset with a maximum bending curvature, it can effectively limit excessive bending at the junction of the soft and hard interface, effectively protect the optical fiber components built into the light source line, reduce failures caused by bending, significantly extend the service life of a single light source line, and thus reduce the high economic burden caused by frequent repairs or replacements, meeting the needs of clinical cost control.

[0023] 2. This utility model adopts a design of direct sleeve of universal tube and detachable fixation device. The fixation device has a simple structure and is easy to operate. No additional complicated accessories are required. Installation can be completed by simply twisting or connecting. It has strong adaptability. The device does not require modification of the light source line body and can be directly adapted to the existing endoscopic light source line. It is easy to install and disassemble, which meets the needs of efficient and convenient operation in clinical surgery.

[0024] 3. The universal tube combines flexibility and support. It can follow the position of the light source line and freely switch between straight and curved states to meet the flexibility requirements of surgical field adjustment; at the same time, it can maintain a preset reasonable bending radius through its own support to ensure that the light source line is always in a stable and bend-proof state. Attached Figure Description

[0025] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0026] Figure 1 This is a schematic diagram of the structure of the present invention after installation in Embodiment 1 (the light source line hangs down naturally).

[0027] Figure 2 This is a schematic diagram of the structure of the present invention after installation in Embodiment 1 (the light source line is flipped up).

[0028] Figure 3 This is a partial enlarged view of the fixture and rigid connector in Example 1.

[0029] Figure 4 This is a schematic diagram of the separate structure of the fixture and the light source line in Example 1.

[0030] Figure 5 This is a schematic diagram of the second sleeve in another example.

[0031] Figure 6 This is a schematic diagram of the structure of the present invention after installation in Embodiment 2 (the light source line hangs down naturally).

[0032] Figure 7 This is a schematic diagram of the structure of the present invention after installation in Embodiment 2 (the light source line is flipped up).

[0033] Figure 8 This is a partial enlarged view of the fixture and rigid connector in Example 2.

[0034] Figure 9 This is a front view of the fixture and rigid connector in Example 2.

[0035] Figure 10 This is an exploded view of the fixture in Example 2.

[0036] Figure 11 This is a schematic diagram of the structure of a laparoscope in the existing technology.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Endoscope body; 101. Handle; 102. Endoscope body; 1021. Light source connector; 103. Sheath; 2. Light source cable; 21. Rigid connector; 211. Clamping tongue; 22. Flexible tubing; 3. Universal tube; 4. Fixator; 41. First sleeve; 42. Second sleeve; 401. Slit sleeve; 402. Tube section; 403. Vertical slit; 404. Conical sleeve. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0040] Example 1:

[0041] like Figure 11 As shown, Figure 11This is a schematic diagram of the structure of a conventional endoscope. The conventional endoscope includes an endoscope body 1, which is mainly composed of three parts: a handle 101, an endoscope body 102 connected to the handle 101 (the endoscope body 102 and handle 101 are detachably connected), and the endoscope body 102 can rotate relative to the handle 101. A sheath 103 is fitted onto the endoscope body 102, also detachably connected, and the sheath 103 can rotate relative to the endoscope body 102. A light source connector 1021 is provided on the endoscope body 102, and a light source wire 2 can be detachably connected to the light source connector 1021. The light source wire 2 includes a flexible hose 22, and the end of the flexible hose 22 is provided with a rigid connector 21 that can be fitted and inserted into the light source connector 1021. The connection point between the flexible hose 22 and the rigid connector 21 is the soft-rigid joint described in the background art; this part is extremely prone to bending damage and is a weak area. The rigid connector 21 has a built-in latch 211 and a compression spring. When pressed, the latch 211 can move, and the spring force can be used to achieve the locking connection between the rigid connector 21 and the light source connector 1021.

[0042] like Figures 1-5 As shown, to address the aforementioned technical problems, this embodiment proposes a sleeve-type protective device to reduce bending damage to the endoscope light source wire. The light source wire 2 includes a rigid connector 21 and a flexible hose 22 connected to the rigid connector 21. The connection between the rigid connector 21 and the flexible hose 22 is a combination of rigid and flexible components. The entire device also includes:

[0043] Universal tube 3 is fitted onto the endoscope light source line 2 and covers the soft and hard joint, providing support and protection. One end of the universal tube 3 is connected to a retainer 4, and the other end is a free end. The retainer 4 has a hollow structure, which can be fitted onto the light source line 2 and can be detachably connected to the rigid connector 21 for easy assembly and disassembly.

[0044] The universal joint 3 has both straight and curved states, and it has a preset maximum curvature. The universal joint 3 can freely adjust between the straight and curved states as the position of the light source line 2 changes. The advantage of this design is that the universal joint 3 can freely switch between straight and curved states as the position of the light source line 2 changes, thus maintaining a suitable bending radius for the light source line 2 and avoiding damage to the fiber optic components due to excessive bending.

[0045] In some embodiments, the universal tube 3 can be made of stainless steel shower tube, titanium alloy flexible metal tube, shapeable metal snake tube, sheath spring, etc. The sheath spring can be made of corrosion-resistant metal materials such as stainless steel and galvanized steel. The sheath spring adopts a spiral metal structure, which has excellent bending flexibility—it can follow the position change of the light source line 2 during surgery and easily adjust between straight and curved states to meet the flexibility requirements of field of view adjustment during laparoscopic operation; at the same time, it can maintain the preset maximum bending curvature by virtue of the rigidity of the spiral structure itself, which physically limits the excessive bending at the soft and hard junction of the light source line 2.

[0046] The universal tube 3 has a preset maximum bending curvature. When bent to this maximum curvature, it cannot be bent further, thus forming a mechanical limit on excessive bending of itself and the light source line 2. The preset maximum bending curvature can strictly control the degree of bending of the light source line 2 through mechanical limiting, keeping it within a safe bending radius. This fundamentally avoids damage to the fiber optic components caused by improper operation, such as misoperation during surgery, thus protecting the core function of the light source line 2 and reducing high maintenance or replacement costs.

[0047] During the surgery, the position of the light source line 2 needs to be frequently adjusted with the endoscope. The mechanical limit provides clear operating boundaries for medical staff, avoids sudden excessive bending of the light source line 2 due to excessive angle adjustment, maintains the stable illumination and signal transmission function of the light source line 2, reduces interference with the surgical field of vision and precise operation, and improves surgical safety.

[0048] In summary, the universal tube 3 combines flexibility and support. It can follow the position of the light source line 2 and freely switch between straight and curved states to meet the flexibility requirements of surgical field adjustment. At the same time, it can maintain a preset reasonable bending radius through its own support to ensure that the light source line 2 is always in a stable and bend-proof state.

[0049] Application results:

[0050] To address the technical issue of easy bending and damage at the junction of the rigid and flexible parts of the endoscope light source line 2, a universal tube 3 is directly fitted and fully covers this vulnerable area. The universal tube 3 has a preset maximum bending curvature, which can effectively limit excessive bending at the junction of the rigid and flexible parts. This can effectively protect the fiber optic components built into the light source line 2, reduce failures caused by bending, significantly extend the service life of a single light source line 2, and thus reduce the high economic burden caused by frequent repairs or replacements, meeting the needs of clinical cost control.

[0051] In this implementation, stainless steel shower hoses are preferred. Stainless steel shower hoses are typically composed of multiple connected movable metal segments, giving them excellent flexibility and shape retention. They can be freely bent into any angle (straight or curved) and stably maintain their set shape, ensuring consistent support for the light source line 2 during surgery, maintaining a suitable bending radius, and preventing damage to the soft-hard joints due to excessive bending. They possess moderate structural strength, stably supporting the weight of the light source line 2 without being too rigid and restricting flexible adjustments during surgical operations, thus balancing support stability and operational flexibility.

[0052] Furthermore, stainless steel shower hoses are mature, mass-produced, and standardized components in industry, with wide procurement channels and controllable costs. There's no need to design complex processing techniques specifically for the universal hose, reducing the overall manufacturing cost of the tool and facilitating large-scale production and clinical application. Stainless steel itself possesses excellent corrosion resistance and rust resistance, and can withstand high-temperature sterilization and frequent treatment with chemical disinfectants, meeting the stringent sterile environment requirements of operating rooms.

[0053] In this embodiment, the fixture 4 can adopt the following structural form:

[0054] The fastener 4 includes a first sleeve 41, one end of which is fixedly connected to one end of the universal tube 3; a second sleeve 42 is fitted on the rigid connector 21, and the first sleeve 41 and the second sleeve 42 are threadedly connected.

[0055] In some embodiments, the inner wall of the first sleeve 41 has an internal thread, and the outer wall of the second sleeve 42 has an external thread that is adapted to connect with the internal thread.

[0056] The second sleeve 42 can rotate freely relative to the rigid joint 21, or the second sleeve 42 can be directly fixed to the rigid joint 21.

[0057] The installation of the second sleeve 42 needs to be explained: Since the rigid connector 21 has a latch 211, the presence of the latch 211 will affect the installation of the second sleeve 42. Therefore, during installation, the latch 211 should be removed by unscrewing the small screws on the rigid connector 21 before the second sleeve 42 is installed.

[0058] In some embodiments, installation can also be performed without disassembling the latch 211, which is more convenient. Specifically, the second sleeve 42 has a two-part structure, consisting of two half-sleeves that are joined and fixed together. The fixing methods between the two half-sleeves include, but are not limited to, adhesive bonding, heat fusion, welding, and binding.

[0059] In some embodiments, the fastener 4 may be made of plastic or stainless steel.

[0060] Example 2:

[0061] like Figures 6-10 As shown, the other structures are the same as in Embodiment 1, except that in this embodiment, the fixator 4 can also adopt the following structural form:

[0062] The fixture 4 includes a slit sleeve 401, which has several vertical slits 403 in the circumferential direction; a pipe section 402 is connected to the bottom end of the slit sleeve 401, and the pipe section 402 is connected to one end of the universal tube 3; a conical sleeve 404 is also fitted on the slit sleeve 401, and the conical sleeve 404 is threadedly connected to the slit sleeve 401; when the conical sleeve 404 is screwed, the slit sleeve 401 can be retracted and locked inward, thereby realizing the clamping function.

[0063] In some embodiments, the outer wall of the tapered sleeve 404 is provided with several anti-slip textures or anti-slip ribs to increase friction.

[0064] Application results:

[0065] The circumferential vertical slit 403 design of the slit sleeve 401 provides it with a retractable elastic space. Combined with the adjustment method of the conical sleeve 404 for screwing and locking, there is no need to customize exclusive fixing parts for the rigid connector 21 of the light source line 2 of different diameters. It can flexibly adapt to the common specifications of endoscopic light source line 2 connectors in clinical practice, avoid the limitation of "one device for one use" caused by the difference in connector size, and reduce the cost of device adaptation.

[0066] The entire process only requires two steps: fitting and screwing to fix it. When in use, after fitting the slit sleeve 401 onto the rigid connector 21, simply screwing the conical sleeve 404 will drive the slit sleeve 401 to shrink and lock inward through the squeezing action of the conical structure, without the need for complicated tools or multiple people.

[0067] As can be seen from the above two embodiments, this device adopts the design of direct sleeve of universal tube 3 and detachable fixator 4. The fixator 4 has a simple structure and is easy to operate. No additional complicated accessories are required. Installation can be completed by simply twisting or connecting. It has strong adaptability. The device does not require modification of the light source line 2 body. It can be directly adapted to the existing laparoscopic light source line 2. Installation and disassembly are convenient and meet the needs of efficient and convenient operation in clinical surgery.

[0068] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0069] Although the specific embodiments of the utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the utility model. Based on the technical solution of the utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the utility model.

Claims

1. A sleeve-type protective device for reducing bending damage to the light source wire of a laparoscope, wherein, The light source line (2) includes a rigid connector (21) and a flexible hose (22) connected to the rigid connector (21), wherein the connection between the rigid connector (21) and the flexible hose (22) is a combination of rigid and flexible components; characterized in that it further includes: Universal tube (3); sleeved on the endoscope light source line (2) and covering the soft and hard joint; one end of the universal tube (3) is connected to a fixator (4), and the other end is a free end; the fixator (4) is a hollow structure, which can be sleeved on the light source line (2) and can be detachably connected to the rigid connector (21); The universal tube (3) has a straight state and a curved state, and the universal tube (3) has a preset maximum curvature; The universal tube (3) can freely adjust between a straight state and a curved state as the position of the light source line (2) changes.

2. The sleeve-type protective device for reducing bending damage to the endoscope light source wire according to claim 1, characterized in that, The fastener (4) includes a slit sleeve (401), which has several vertical slits (403) in the circumferential direction; a pipe section (402) is connected to the bottom end of the slit sleeve (401), and the pipe section (402) is connected to one end of the universal tube (3); a conical sleeve (404) is also fitted on the slit sleeve (401), and the conical sleeve (404) is threadedly connected to the slit sleeve (401); when the conical sleeve (404) is screwed, the slit sleeve (401) can be tightened inward.

3. The sleeve-type protective device for reducing bending damage to the endoscope light source wire according to claim 2, characterized in that, The outer wall of the conical sleeve (404) is provided with several anti-slip textures or anti-slip ribs.

4. A sleeve-type protective device for reducing bending damage to the endoscope light source wire according to claim 1, characterized in that, The universal tube (3) is a stainless steel shower tube.

5. A sleeve-type protective device for reducing bending damage to the endoscope light source wire according to claim 1, characterized in that, The fastener (4) includes a first sleeve (41), one end of which is fixedly connected to one end of the universal tube (3); a second sleeve (42) is fitted on the rigid connector (21), and the first sleeve (41) and the second sleeve (42) are threadedly connected.

6. A sleeve-type protective device for reducing bending damage to the endoscope light source wire according to claim 5, characterized in that, The inner wall of the first sleeve (41) has an internal thread, and the outer wall of the second sleeve (42) has an external thread that is adapted to connect with the internal thread.

7. A sleeve-type protective device for reducing bending damage to the endoscope light source wire according to claim 5, characterized in that, The second sleeve (42) is able to rotate freely relative to the rigid joint (21).

8. A sleeve-type protective device for reducing bending damage to the endoscope light source wire according to claim 5, characterized in that, The second sleeve (42) is a two-half structure, which is formed by fixing two half sleeves together.

9. A sleeve-type protective device for reducing bending damage to the endoscope light source wire according to claim 8, characterized in that, The methods of fixing the two half-sleeves include, but are not limited to, gluing, hot melting, welding, and binding.

10. A sleeve-type protective device for reducing bending damage to the endoscope light source wire according to claim 8, characterized in that, The fastener (4) is made of plastic or stainless steel.

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