Light transmitting bundle anti-breaking device of surgical endoscope

Abstract

The utility model relates to the field of medical auxiliary instruments, in particular to an anti-breaking device for a light transmitting bundle of an endoscope for surgery, which comprises an elastic protective sleeve, a front fixer and a rear fixer, the front fixer and the rear fixer are connected to two ends of the elastic protective sleeve, the front fixer is detachably connected to a light transmitting bundle connecting interface, the rear fixer is detachably connected to an endoscope camera, and the elastic protective sleeve is connected with the elastic protective sleeve. The elastic protective sleeve surrounds the light guide beam tube body, and the portion, in the elastic protective sleeve, of the light guide beam tube body is restrained to be in an arch shape. The front fixator and the rear fixator fix the two ends of the drag chain, equivalently, the starting point and the end point of the bent section of the light guide bundle are fixed, it is guaranteed that movement of the endoscope and movement of the light guide bundle are synchronous, relative displacement between the drag chain and the light guide bundle is prevented, inertial impact is reduced, and the bending radian of the light guide bundle is increased through a mechanical dispersion and path constraint method; and the risk that the light transmitting bundle is easy to break from the interface is obviously reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical auxiliary instrument, concretely relates to the light beam anti-breaking device of endoscope for operation. BACKGROUND

[0002] The principle of optical fiber light guide is that it is composed of two layers of glass with different refractive indexes. The inner layer is the optical core, with a diameter of several microns to several tens of microns, and the outer layer has a diameter of 0.1-0.2 mm. The refractive index of the inner core glass is generally 1% larger than that of the outer layer glass. According to the principle of light refraction and total reflection, when the angle of light incident to the interface between the inner core and the outer layer is greater than the critical angle of total reflection, the light cannot penetrate the interface and is totally reflected. The advantages of light guide beam: 1. Little trauma and quick recovery: endoscopic surgery does not require large incisions, and the damage to the abdominal wall and abdominal cavity is very small. Patients can get out of bed on the day after surgery, eat on the first day, and be discharged on the third day. They can return to work in 7-15 days. 2. More beautiful: endoscopic surgery only requires three small holes of 0.5-1.0 cm, and does not need to be sutured after surgery. It can be covered with adhesive tape, and there is almost no trace after three months. 3. Clear operation, reliable effect: the endoscope can magnify the local tissue and organs by about 3 times, making the operation clearer, more reliable and safer. The exposure of the surgical field is more complete than traditional surgery. 4. Fewer complications and less pain: during the operation, incision and hemostasis are mainly completed by electrocision, electrocoagulation and high-frequency electric knife, so there is little bleeding during the operation, resulting in fewer postoperative complications and less pain. Generally, no analgesic is needed. 5. Simple and fast operation: although endoscopic surgery uses more equipment, it simplifies hemostasis and operation, shortens the operation time, and is very convenient for rescuing shock patients. Some operations can be completed in a few minutes, and most of the main operations can be completed within ten minutes, and the effect is satisfactory to both patients and doctors.

[0003] Because light guide beam can bring many conveniences, it has become an indispensable device in surgery. However, there are many pain points in use, such as easy breaking, which brings serious risks to surgery.

[0004] In view of the above situation, a catheter beam protection device is disclosed in patent (authorized announcement number CN 204562075 U). The protection device includes a tube body, the tube body is provided with a spiral opening, and the tube opening is provided with a ribbon. The utility model can be conveniently sleeved outside the endoscope light guide beam, effectively protecting the endoscope light guide beam from being damaged, reducing the loss of the endoscope light guide beam, and reducing the cost.

[0005] However, the protection device of this structure has many problems, including: 1. It is not convenient to use, and the longer the light guide beam, the more ribbons need to be tied, which takes a long time and is time-consuming and laborious. 2. Different operators tie in different ways, which may cause large deviations in effect. UTILITY MODEL CONTENTS

[0006] To solve the above technical problems, the utility model discloses a surgical endoscope's light beam anti-breaking device, which can make the operation of nurses more convenient and reliable.

[0007] In order to realize the above-mentioned purpose, the utility model discloses a technical scheme as follows:

[0008] Surgical endoscope's light beam anti-breaking device, including elastic protective sleeve, still including the front fixer and rear fixer of connecting in the both ends of elastic protective sleeve, the front fixer can be detachably connected on light beam connecting interface, the rear fixer can be detachably connected on endoscope camera, and the elastic protective sleeve is around on light beam pipe body, and the light beam pipe body in the elastic protective sleeve is constrained into arc shape.

[0009] Further, the elastic protective sleeve is a universal circular Joe type drag chain, the bending radius is 300 millimeters, and a connecting disc is arranged at the both ends of the universal circular Joe type drag chain.

[0010] Further, the universal circular Joe type drag chain is made of medical polymer, and a silica gel lining is arranged on the inner layer of the drag chain in contact with the light beam, so as to further buffer friction and reduce the risk of light beam skin abrasion.

[0011] Further, the front fixer is mainly composed of a connecting plate, a C-shaped clamp, a pressing rod and a release rod, one end of the universal circular Joe type drag chain is fixed on the connecting plate, the C-shaped clamp and the release rod are fixed side by side on the connecting plate, the light beam is inserted into the clamping hole of the C-shaped clamp from the vertical direction during fixing, the release rod is divided into a supporting section and a release section, the supporting section is fixed on the connecting plate, the release section is fixed on the top end of the supporting section in the radial direction of the C-shaped clamp, and the lower end of the release section is a pawl and is adjacent to the opening of the C-shaped clamp.

[0012] A section of ratchet tooth is arranged at the opening of the C-shaped clamp in the clockwise direction, the pressing rod is arranged at the end of the ratchet tooth, the pressing rod is arranged in the radial direction of the C-shaped clamp and protrudes from the surface of the C-shaped clamp, the virtual extension line of the pressing rod and the release rod is in V-shaped intersection state, the C-shaped clamp has elastic deformation, when pressure is applied to the pressing rod and the release rod, the pawl is clamped into the ratchet tooth to reduce the diameter of the C-shaped clamp.

[0013] Further, the opening gap of the C-shaped clamp is wide outside and narrow inside, and the widest gap is the maximum diameter of the light beam connecting interface. It is most easy to operate when clamping and removing.

[0014] Furthermore, the rear retainer is an elastic U-shaped clip that is clipped onto the bottom of the endoscope camera. A clip plate extends laterally from the right end of the U-shaped clip. The tail end of the universal circular Joe cable is detachably connected to the clip plate, and the clip plate has an open through hole for the beam guide cable to pass through.

[0015] Furthermore, two vertical stabilizing posts are provided on the clamping plate, and two fixing holes are provided on the connecting plate at the lower end of the universal circular joist cable chain, into which the vertical stabilizing posts can be inserted.

[0016] The advantages of the above design compared with the existing technology are: 1. The hinge structure of the cable chain decomposes the bending action of the light guide into multiple small-angle segments, avoiding excessive bending at a single point.

[0017] 2. The front and rear retainers secure both ends of the cable chain, effectively fixing the start and end points of the bend in the fiber optic cable guide. This ensures synchronized movement of the endoscope and the fiber optic cable guide, preventing relative displacement between them and reducing inertial impact. Furthermore, the fixed ends form a closed mechanical system, preventing the fiber optic cable guide from rotating freely within the cable chain and thus preventing fiber optic kinking. The front retainer also helps to distribute external tension on the fiber optic cable guide (e.g., from accidental pulling), protecting the fragile fiber optic interface. The rear retainer secures the fiber optic cable guide and separates it from the endoscope. Since the endoscope generates heat during use, nurses typically need to hold the endoscope with one hand and pinch the fiber optic cable guide to prevent it from slipping. The rear retainer prevents nurses from having to hold the cable guide again, thus avoiding burns.

[0018] 3. This device increases the curvature of the beam guide by using mechanical dispersion and path constraint methods, which significantly reduces the risk of the beam guide breaking at the interface, making it especially suitable for surgical scenarios with high frequency and multiple degrees of freedom.

[0019] 4. The snap-on and scissor-shaped end retainers make the removal and fixing operations convenient. Furthermore, after the beam guide is removed, the anti-breakage device does not need to be removed, so as not to affect the docking and storage of the beam guide. In addition, the materials and structure used can also withstand ultraviolet rays and high-temperature sterilization, making it suitable for repeated sterilization in surgery. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram showing the connection between the endoscope and the beam guide.

[0021] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0022] Figure 3 A schematic diagram of the right-side structure of the anti-breakage device for the beam guide installed on the endoscope camera;

[0023] Figure 4for Figure 3 A schematic diagram of the enlarged structure in direction A;

[0024] Figure 5 This is a top view of the front fixation device of this utility model;

[0025] Figure 6 The diagram shows the movement state of the front retainer, where a is the C-shaped clip open state and b is the C-shaped clip locked state. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific embodiments.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The surgical endoscope beam guide anti-breakage device shown includes an elastic protective sleeve, and a front fixator 1 and a rear fixator 2 connected to both ends of the elastic protective sleeve. The front fixator 1 is detachably connected to the beam guide connection interface 3, and the rear fixator 2 is detachably connected to the endoscope camera 4. The elastic protective sleeve 5 surrounds the beam guide tube 6, and the beam guide tube 6 inside the elastic protective sleeve 5 is constrained into an arch shape. In this way, the beam guide tube extending from the beam guide connection interface can be in an arched state and will not be broken at the interface due to the downward pull of the tail end of the beam guide.

[0028] In this embodiment, the elastic protective sleeve 5 is a universal circular Joe cable chain with a bending radius of 300 mm. Connecting discs 5-1 are provided at both ends of the universal circular Joe cable chain. The connecting discs can be fixed to the front and rear retainers respectively by bolts. The cable chain is made of medical-grade polymer, and a silicone liner is provided on the inner layer of the universal circular Joe cable chain that contacts the beam guide. Generally, the cable chain's maximum radius of curvature is ≥5 times the beam guide diameter, meeting the fiber optic fatigue resistance standard.

[0029] In this embodiment, the front retainer 1 mainly consists of a connecting plate 10, a C-shaped clip 11, a pressing rod 12, and a release rod 13. One end of the cable chain is fixed to the connecting plate 10. To facilitate the operation of the front retainer, the connecting disc at the front end of the cable chain has a connecting threaded hole on its side. The connecting plate is fixed to the threaded hole on the side. The C-shaped clip 11 and the release rod 13 are fixed side by side to the connecting plate 10. During fixing, the beam guide tube 6 is inserted vertically into the clip hole of the C-shaped clip 11, and the release rod 13 is divided into... The support section is fixed on the connecting plate 10. The release section is fixed at the top of the support section at an angle to the radial direction of the C-shaped clip 11. The lower end of the release section is a pawl 13-1 and is close to the opening of the C-shaped clip. There is a gap between the two so that when the C-shaped clip retracts, the other end can be inserted downward through the gap, thereby reducing the diameter of the elastically deformable C-shaped clip and clamping the inner ring of the beam guide tube. When removing the front retainer, the release rod can be pried open and the upper end of the C-shaped clip can be pulled out.

[0030] Additionally, a ratchet tooth 11-1 extends clockwise from the opening of the C-shaped clip. The pressing rod 12 is located at the end of the ratchet tooth 11-1, protruding from the surface of the C-shaped clip 11 in the radial direction. The virtual extension lines of the pressing rod 12 and the release rod 13 intersect in a V-shape. The C-shaped clip 11 has elastic deformation. When pressure is applied to the pressing rod 12 and the release rod 13, the pawl 13-1 engages with the ratchet tooth 11-1, reducing the diameter of the C-shaped clip. The pressing rod 12 can be pressed down and lifted back, thereby making the opening of the C-shaped clip 11 larger or smaller. When it is larger, it can be easily inserted into the beam guide connection interface 3. When pressed down, the upper end of the C-shaped clip is inserted into the gap. After insertion, the ratchet tooth 11-1 and the pawl 13-1 engage, thereby locking the C-shaped clip onto the beam guide connection interface. This design allows the front retainer to be quickly and detachably fixed to the beam guide interface, thereby securing the cable chain and ensuring that the cable chain and beam guide move synchronously. This, in turn, utilizes the bending of the cable chain to protect the beam guide from breakage.

[0031] The C-shaped clip 11 has an opening gap that is wider at the outside and narrower at the inside. The widest gap is the maximum diameter of the beam guide connection interface. When inserted, it can be squeezed in by external force. When removed, the release lever 13 and the pressing lever 12 are lifted to remove the clip. Stress ribs are also provided on the outer surface of the C-shaped clip. During the continuous elastic deformation of the C-shaped clip, the number of deformation cycles can be increased, thus extending its service life.

[0032] The endoscope body is an irregular cylindrical shape. The rear retainer 2 is a flexible U-shaped clip that locks onto the camera body of the endoscope. A clip plate 2-1 extends laterally from the right end of the U-shaped clip. The tail end of the universal circular Joe cable is detachably connected to the clip plate 2-1, which has an open through hole for the beam guide cable to pass through. Two vertical stabilizing posts 2-2 are also provided on the clip plate. Two fixing holes are provided on the connecting disc at the lower end of the universal circular Joe cable, into which the vertical stabilizing posts 2-2 can be inserted. The universal circular Joe cable can extend in any direction. Generally, the beam guide cable and endoscope are manually positioned during use. Figure 1 In this state, after placing the beam guide tube in this position using a universal circular cable chain, and then fixing both ends of the cable chain, there is no need to manually hold it. The cable chain has a bending curvature, which can prevent the beam guide from drooping down from the interface and causing it to break easily.

[0033] The above provides a detailed description of the anti-breakage device for surgical light guides provided by this utility model. The specific embodiments are described only to aid in understanding the method and core concept of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A break-proof device for a light beam of a surgical endoscope comprising an elastic protective sleeve, characterized in that, The front and rear fixers are connected to the elastic protective sleeve, the front fixer is detachably connected to the light guide beam connecting interface, and the rear fixer is detachably connected to the endoscope camera.

2. The break-proof light guide device for a surgical endoscope according to claim 1, characterized by: The elastic protective sleeve is a universal circular Jiao type drag chain, and the bending radius is 300 mm.

3. The break-proof light guide device for a surgical endoscope according to claim 2, characterized by: The universal circular Jiao type drag chain is made of a medical polymer, and a silica gel lining is arranged on the inner layer of the universal circular Jiao type drag chain in contact with the light guide beam pipe body.

4. The break-proof light guide device for a surgical endoscope according to claim 2, characterized by: The front fixer mainly comprises a connecting plate, a C-shaped clamp, a pressing rod and a release rod, one end of the universal circular Jiao type drag chain is fixed on the connecting plate, the C-shaped clamp and the release rod are fixed side by side on the connecting plate, and the light guide beam pipe body is inserted into the clamping hole of the C-shaped clamp from the vertical direction during fixing, The release rod is divided into a supporting section and a release section, the supporting section is fixed on the connecting plate, the release section is fixed on the top end of the supporting section in the radial direction of the C-shaped clamp, the lower end of the release section is a pawl and is close to the opening of the C-shaped clamp, A section of ratchet tooth is arranged in the opening of the C-shaped clamp in the clockwise direction, the pressing rod is arranged at the end of the ratchet tooth, the pressing rod is arranged in the radial direction of the C-shaped clamp and protrudes from the surface of the C-shaped clamp, the virtual extension lines of the pressing rod and the release rod are in V-shaped intersection state, the C-shaped clamp has elastic deformation, when pressure is applied to the pressing rod and the release rod, the pawl is clamped into the ratchet tooth to reduce the diameter of the C-shaped clamp.

5. The break-proof light guide device for a surgical endoscope according to claim 4, characterized by: The opening gap of the C-shaped clamp is wide outside and narrow inside, and the widest gap is the maximum diameter of the light guide beam connecting interface.

6. The break-proof light guide device for a surgical endoscope according to claim 2, characterized by: The rear fixer is an elastic U-shaped clamp, the U-shaped clamp is clamped at the bottom of the endoscope camera, the right end of the U-shaped clamp extends a clamping plate transversely, the tail end of the universal circular Jiao type drag chain is detachably connected to the clamping plate, and the clamping plate is provided with an open through hole for the light guide beam wire bundle to pass through.

7. The break-proof light guide device for a surgical endoscope according to claim 6, characterized by: Two vertical stabilizing piles are arranged on the clamping plate, two fixing holes are arranged on the connecting disc at the lower end of the universal circular Jiao type drag chain, and the vertical stabilizing piles can be inserted into the fixing holes.

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