Water spraying device for laser optical fiber

Abstract

The invention provides a pressurized spraying device for a laser optical fiber, and the device comprises an outer tube, the far end of the outer tube is formed into a cone structure, and the periphery of the cone structure is provided with a plurality of water spraying holes for spraying around the acting site of an aurora optical fiber; the inner tube is sleeved with the outer tube, the central axis of the outer tube coincides with the central axis of the inner tube, and the inner tube can contain a laser optical fiber; the water injection joint is connected with the outer pipe; and the adsorption joint is connected with the inner pipe. The device is used for water mist spraying, the laser optical fiber acts on the tissue surface, laser energy is released, spraying is generated, and liquid on the tissue surface is absorbed at the same time. The effects of cooling and water spraying are achieved.

Description

Technical Field

[0001] The present application relates to the field of medical mechanical equipment, and in particular to a water spray device for laser optical fiber. Background Art

[0002] With the development of science and technology, various advanced science and technology have penetrated into the medical field. For example, in the field of medical machinery, more and more medical devices are being used. Among them, medical laser optical fiber has also become an important material for medical devices.

[0003] Medical lasers require saline as a laser working medium to meet laser use requirements. In laparoscopic or open surgery, the laser cannot achieve satisfactory results in this type of surgery because there is no saline as a medium. Summary of the invention

[0004] The technical solution of this application is as follows:

[0005] A pressurized spray device for laser optical fiber, comprising:

[0006] An outer tube, the distal end of which is formed into a cone structure, and a plurality of water spray holes are provided on the outer circumference of the cone structure to spray around the action site of the aurora optical fiber;

[0007] An inner tube, which is sleeved inside the outer tube, the central axis of the outer tube coincides with the central axis of the inner tube, and the inner tube can accommodate the laser optical fiber;

[0008] A water injection joint connected to the outer pipe;

[0009] An adsorption joint is connected to the inner tube.

[0010] Furthermore, the aperture size of each water spray hole is 100-400 um.

[0011] Furthermore, the distance between adjacent water spray holes is 0.5-1 mm.

[0012] Furthermore, each water spray hole in the cone structure is cut by laser.

[0013] Furthermore, the cone structure is a vertebral body whose diameter gradually decreases from the proximal end to the distal end.

[0014] Further, the outer tube has a diameter of 5 to 20 mm, preferably 15 mm;

[0015] The inner tube has a diameter of 2.5 to 5 mm, preferably 3.5 to 4.5 mm.

[0016] Further, the length of the inner tube is greater than the length of the outer tube;

[0017] Preferably,

[0018] The length of the outer tube is 15 to 40 cm, preferably 15 to 30 cm;

[0019] The length of the inner tube is 17 to 42 cm.

[0020] Furthermore, the adsorption connector is a Luer adsorption connector, which can absorb the moisture in the outer tube.

[0021] Furthermore, the total water output of the water spray hole is 1 to 100 mL / min.

[0022] Furthermore, the outer tube and the inner tube are both made of metal, preferably 304 stainless steel.

[0023] Furthermore, a water sealing device is provided on the proximal end of the outer tube.

[0024] Compared with the prior art, the beneficial effects of this application are:

[0025] The present application provides a pressurized water spraying device for use with laser optical fiber. The device is used for laser optical fiber in surgical operations. It can be introduced into the optical fiber, and when the optical fiber is working, water mist can be directly sprayed toward the optical fiber head end in the form of a spray, and negative pressure suction can be performed in the head end pipeline of the device at the same time, ensuring that the laser is operated in a water environment.

[0026] The present application realizes that during the process of energy release from the laser optical fiber, physiological saline that can cooperate with the laser is flushed out, and the liquid adsorption function is performed at the same time.

[0027] The water spray holes of the present application adopt a multi-hole design, and the water outlets are in a multi-port confocal mist spraying mode toward the axis. The focusing point of the water flow is the action point of the laser optical fiber. A radial mesh fence design is adopted at the opening of the laser optical fiber channel. While the optical fiber is fixed at the center of the circle, the mesh fence is subjected to the effect of negative pressure adsorption, and the water at the action point of the optical fiber is adsorbed and discharged.

[0028] The present application utilizes the device to spray water mist, with the laser optical fiber acting on the tissue surface, releasing laser energy while generating spray and absorbing liquid on the tissue surface, achieving the effects of cooling and spraying water. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram showing a pressurized spray device for laser optical fiber of the present application is shown;

[0030] Figure 2 A left side view of a pressurized spray device for laser fiber is shown.

[0031] Description of Reference Numerals

[0032] 1: Outer tube; 2: Inner tube; 3: Water injection joint; 4: Water injection hole; 5: Adsorption joint; 6: Adsorption hole; 7: Cone structure; 8: Water spray hole; 9: Water flow focusing point; 10: Fiber optic surgical channel; 11:

[0033] Insert; 12: soft plug; 13: first circumference. DETAILED DESCRIPTION

[0034] like Figure 1 As shown, the present application provides a pressurized spray device for laser optical fiber, which includes: an outer tube 1, the distal end of the outer tube 1 is formed into a cone structure 7, and a plurality of water spray holes 8 are provided on the outer periphery of the cone structure 7 to spray around the action site of the aurora optical fiber; an inner tube 2, which is sleeved inside the outer tube 1, the central axis of the outer tube coincides with the central axis of the inner tube, and the inner tube 2 can accommodate the laser optical fiber; a water injection joint 3, connected to the outer tube 1; and an adsorption joint 5, connected to the inner tube 2. Inner tube 2.

[0035] like Figure 1 As shown, the axial center of the inner tube 2 is the fiber optic surgical channel 10 .

[0036] In the present application, the cone structure is a cone whose diameter gradually decreases from the proximal end to the distal end. Such a cone structure can make the device easily inserted into the cavity.

[0037] like Figure 1 As shown, the length of the inner tube 2 is greater than that of the outer tube 1. The inner tube 2 penetrates into the outer tube 1 and extends from both ends of the outer tube 1. A water spray hole 8 is provided at one end close to the cone structure for water discharge. A core insert 11 is provided on the side of the inner tube 2 away from the cone structure. The inner tube 2 and the core insert 11 are integrally formed. The core insert 11 structure on one side of the inner tube is used to fix the inner tube 2 in the outer tube 1, wherein one end of the core insert 11 is inserted into the outer tube 1 with a cone fit, and the other end of the core insert 11 is connected to the outer tube 1 through a thread.

[0038] like Figure 1 As shown, in the present application, a water sealing device is provided on the proximal side of the outer tube, and the water sealing device is a soft plug 12, which seals the inner tube 2 to prevent water from overflowing in the optical fiber surgical channel.

[0039] A water sealing device is installed at the end of the outer tube 1 where the water spray hole 8 is not provided. The water injection joint 3 is located near the end of the outer tube 1 where the water spray hole 8 is not provided, so as to facilitate water injection. During use of the pressurized spray device for laser optical fiber of the present application, the end of the outer tube 1 with a cone structure is to be extended into the patient's body, while the end of the outer tube 1 adjacent to the water injection joint 3 will remain outside the patient's body, so the water injection pipe 17 is located near the M end of the outer tube 16 to facilitate the injection of water into the water injection pipe 17. The water injection joint 3 is connected to a water injector, and the water injection joint 3 is connected to the water injector, so that the water injector can inject sterile saline into the outer tube 1. The materials of the outer tube 1 and the inner tube 2 are both medical stainless steel or high temperature resistant medical tubular materials.

[0040] The insert 11 and the inner tube 2 are made of 304 stainless steel.

[0041] The material of the soft plug 12 is a material with a certain elasticity, and can be a rubber soft plug 12. The inner tube 2 can be blocked by the rubber soft plug 12. The rubber soft plug 12 is squeezed and fixed to the inner wall of the inner tube 2 by its own flexibility. The blocked inner tube 2 can prevent clods of soil or debris from falling into the inner tube 2 and causing blockage of the inner tube 2.

[0042] like Figure 1 As shown, the adsorption joint 5 is a Luer adsorption joint, which can absorb the moisture in the outer tube, and an adsorption hole 6 is provided inside the adsorption joint 5.

[0043] like Figure 1 As shown, a water injection hole 4 is provided inside the water injection joint 3 , and external water flow can enter through the water injection hole 4 of the water injection joint 3 .

[0044] like Figure 1 and Figure 2 As shown, the spray holes 8 can be distributed on a plurality of circles with the axis of the outer tube 1 as the center, the circles include a plurality of first circles 13 and a plurality of second circles, the diameter of the first circle 13 is smaller than the diameter of the second circle, the axis of the spray holes on the first circle is parallel to the axis of the outer tube, the axis of the spray holes on the second circle is parallel to the axis of the outer tube, and the axis of the spray holes on the other plurality of second circles is parallel to the axis of the outer tube. Figure 2As shown, the water spray holes 8 are distributed on three circles with the axis of the outer tube 1 as the center, that is, three circles of water spray holes 8 are provided on the cone structure 7 of the outer tube 1, each circle includes a plurality of water spray holes 8, and the water spray holes 8 on two adjacent circles are arranged in a staggered manner. The number of circles of water spray holes 8 on the cone structure 7 of the outer tube 1 can be any number, and the specific number of circles can be adjusted according to actual clinical needs. Among them, the axis of the water spray holes 8 on the circle with the smallest radius (i.e., the first circle) is parallel to the axis of the outer tube 1. When processing the water spray holes 8 on the circle with the smallest radius, holes can be punched on the cone structure 7 of the outer tube 1 along the axis direction of the outer tube 1, and the axis of the water spray holes 8 can be parallel to the axis of the outer tube 1 along the axis direction of the outer tube 1; the axes of the water spray holes 8 on the other two circles (i.e., the second circle) are parallel to the axis of the outer tube 1, and holes are punched on the cone structure 7 of the outer tube 1 along the axis direction of the outer tube 1. There are 3-4 rows of water spray holes on the surface of the cone structure 7, each row of water spray holes is distributed in a circle, the spacing between each row of water spray holes is the same, and the spacing between water spray holes in the same row is also the same, and the center of the aperture points to the water flow focusing point 9.

[0045] In the present application, each water spray hole in the cone structure is formed by laser drilling.

[0046] In the present application, the shape of each water spray hole is not limited in any way and can be a hole of any shape as long as it meets clinical needs, for example, it can be a circular hole, a square hole, a triangular hole, a polygonal hole, a cylindrical hole, a conical hole, etc., preferably a cylindrical hole. The shapes of the water spray holes on the same circumference can be the same or different, and the shapes of the water spray holes on different circumferences can be the same or different.

[0047] In some embodiments of the present application, the aperture size of each water spray hole is 100-400um; for example, the aperture size can be 100um, 110um, 120um, 130um, 140um, 150um, 160um, 170um, 180um, 190um, 200um, 210um, 220um, 230um, 240um, 250um, 260um, 270um, 280um, 290um, 300um, 310um, 320um, 330um, 340um, 350um, 360um, 370um, 380um, 390um, 100um or any range therebetween. The aperture sizes of the water spray holes on the same circumference can be the same or different, and the aperture sizes of the water spray holes on different circumferences can be the same or different.

[0048] During use, the diameter of the water spray hole is selected according to the water output.

[0049] In some embodiments of the present application, the distance between adjacent water spray holes can be the distance between two adjacent water spray holes on the same circumference, or the distance between two water spray holes closest to each other on different circumferences. The distance between adjacent water spray holes is 0.5 to 1 mm, for example, it can be 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm or any range therebetween. The setting of the distance between adjacent water spray holes allows the water spray holes to be evenly distributed, while achieving a good cooling effect.

[0050] like Figure 1 As shown, the length of the inner tube is greater than that of the outer tube, and the length of the outer tube is 15 to 40 cm, preferably 15 to 30 cm; for example, the length of the outer tube can be 15 cm, 16 cm, 17 cm, 18 cm, 19 cm, 20 cm, 21 cm, 22 cm, 23 cm, 24 cm, 25 cm, 26 cm, 27 cm, 28 cm, 29 cm, 30 cm, 31 cm, 32 cm, 33 cm, 34 cm, 35 cm, 36 cm, 37 cm, 38 cm, 39 cm, 40 cm or any range therebetween. The length of the inner tube is 17 to 42 cm, for example, the length of the inner tube can be 17 cm, 18 cm, 19 cm, 20 cm, 21 cm, 22 cm, 23 cm, 24 cm, 25 cm, 26 cm, 27 cm, 28 cm, 29 cm, 30 cm, 31 cm, 32 cm, 33 cm, 34 cm, 35 cm, 36 cm, 37 cm, 38 cm, 39 cm, 40 cm, 41 cm, 42 cm or any range therebetween. The length of the outer tube can be set so that the device can enter cavities of different depths.

[0051] In some embodiments of the present application, the outer tube diameter is 5 to 20 mm, preferably 15 mm; for example, the outer tube diameter can be 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm or any range therebetween; the inner tube diameter is 2.5 to 5 mm, preferably 3.5 to 4.5 mm, for example, the inner tube diameter can be The outer tube and the inner tube are made of metal, preferably 304 stainless steel.

[0052] In some embodiments of the present application, the total water output of the water spray hole is 1 to 100 mL / min. For example, the total water output of the water spray hole can be 1 mL / min, 2 mL / min, 3 mL / min, 4 mL / min, 5 mL / min, 6 mL / min, 7 mL / min, 8 mL / min, 9 mL / min, 10 mL / min, 11 mL / min, 12 mL / min, 13 mL / min, 14 mL / min, 15 mL / min, 16 mL / min, 17 mL / min, 18 mL / min, 19 mL / min, 20 mL / min, 21 mL / min, 22 mL / min n, 23mL / min, 24mL / min, 25mL / min, 26mL / min, 27mL / min, 28mL / min, 29mL / min, 30mL / min, 31mL / min, 32mL / min, 33mL / min, 34mL / min, 35mL / min, 36mL / min, 37mL / min, 38mL / min, 39mL / min, 40mL / min, 41mL / min, 42mL / min, 43mL / min, 44mL / min, 45mL / min, 46mL / min, 47mL / min, 48mL / min, 49 mL / min, 50mL / min, 51mL / min, 52mL / min, 53mL / min, 54mL / min, 55mL / min, 56mL / min, 57mL / min, 58mL / min, 59mL / min, 60mL / min, 61mL / min, 62mL / min, 63mL / min, 64mL / min, 65mL / min, 66mL / min, 67mL / min, 68mL / min, 69mL / min, 70mL / min, 71mL / min, 72mL / min, 73mL / min, 74mL / min, 75mL / m in, 76mL / min, 77mL / min, 78mL / min, 79mL / min, 80mL / min, 81mL / min, 82mL / min, 83mL / min, 84mL / min, 85mL / min, 86mL / min, 87mL / min, 88mL / min , 89mL / min, 90mL / min, 91mL / min, 92mL / min, 93mL / min, 94mL / min, 95mL / min, 96mL / min, 97mL / min, 98mL / min, 99mL / min, 100mL / min or any range in between.

[0053] like Figure 1As shown, the following introduces the method of using the pressurized spray device for laser optical fiber of the present application by taking the cone structure of the outer tube 1 with three circles of water spray holes 8 as an example. The first step is to insert the optical fiber from the end of the inner tube 2 close to the adsorption joint and out from the end close to the cone structure; the second step is that the doctor uses a puncture device (not shown in the figure) to establish a channel from the outside to the patient's body, that is, the optical fiber surgical channel 10, and extends the pressurized spray device for laser optical fiber of the present application into the patient's body along the channel, and makes the optical fiber located at the lesion site in the patient's body, wherein the cone structure end of the outer tube 1 is to be extended into the patient's body, and the other end of the outer tube 1 is to be left outside the patient's body; the third step is to turn on the laser generator, move the outer tube 1 to start laser surgery. The water injector injects sterile saline into the gap between the outer tube 1 and the inner tube 2 through the water injection hole 4 of the water injection joint 3. The sterile saline flows along the gap between the inner tube 2 and the outer tube 1 to the water spray hole 8 and finally sprays out from the water spray hole 8. Since the axis of the water spray hole 8 on the circumference is parallel to the axis of the outer tube 1, the water spray hole 8 will spray sterile saline in a direction parallel to the axis of the outer tube 1. The parallel water column sprayed by the water spray hole 8 can clean the surgical wound. During the operation, the optical fiber enters the surgical channel 10 and is then plugged with a rubber plug 12. Water is sprayed by the water injection hole 4 of the water injection joint 3, and the hole structure on the vertebral structure 7 can generate a water column for surgical cooling. For example, the diameter of the water column can be 0.2 mm. The adsorption hole 6 increases negative pressure adsorption and water is recovered in the surgical channel 10. Because blood will form eschar on the surgical wound under the high temperature of the laser, causing the surgical wound to be blurred, after the eschar on the surgical wound is cleaned, the boundary between the diseased tissue and normal tissue becomes clear, which greatly facilitates the precise cutting of the diseased tissue and reduces damage to normal tissue.

[0054] The optical fiber is inserted into the inner tube 2 of the present application, so that the pressurized spray device for moving the laser optical fiber of the present application can move the optical fiber to accurately move the optical fiber to the lesion site, solving the problem that the optical fiber itself is difficult to accurately move and easy to break and damage due to its thinness. The M end of the outer tube 1 is equipped with a water sealing device, which is elastic and is fixed on the outer tube 1. The optical fiber passes through the water sealing device. The water sealing device can prevent the optical fiber from sliding and has a fixing effect on the optical fiber. The water sealing device can also prevent smoke from leaking from the gap between the optical fiber and the inner tube 2.

[0055] The inner tube 2 of the present application extends from both ends of the outer tube 1. On the one hand, it is more convenient to insert the optical fiber into the inner tube 2. On the other hand, the inner tube 2 has a stronger reflective property than human tissue. When the water spray hole 8 sprays sterile saline outward, the stronger reflective property of the inner tube 2 makes it easy for the doctor to see the inner tube 2, and the optical fiber passes through the inner tube 2. In this way, it is easy to determine the position of the optical fiber, so that the doctor can accurately perform surgery on the lesion.

[0056] The pressurized spray device for laser fiber of the present application is a general instrument and is not specifically designed for a certain type of surgery. When the fiber is used for surgery, if the surgical environment is not flushed with saline, this product can be used to spray and cool the incision wound to reduce the formation of eschar on the surgical wound. Cleaning the eschar on the surgical wound makes the boundary between the diseased tissue and the normal tissue clear, which is greatly beneficial to the precise cutting of the diseased tissue and reduces the damage to the normal tissue.

[0057] In the present application, the spraying speed is related to the laser output power. When the laser output power increases, the spraying water flow is adjusted. When the laser output power decreases, the water flow can be reduced. When the water flow is increased, the suction flow rate should also be increased. When the water flow is reduced, the suction flow rate should be reduced. When the doctor uses the device, he can adjust the spraying speed as needed.

[0058] Example

[0059] like Figure 1 As shown, the present application provides a pressurized spray device for laser optical fiber, which includes: an outer tube 1, the distal end of the outer tube 1 is formed into a cone structure 7, and a plurality of water spray holes 8 are provided on the outer periphery of the cone structure 7 to spray around the action site of the aurora optical fiber; an inner tube 2, which is sleeved inside the outer tube 1, the central axis of the outer tube coincides with the central axis of the inner tube, and the inner tube 2 can accommodate the laser optical fiber; a water injection joint 3, connected to the outer tube 1; and an adsorption joint 5, connected to the inner tube 2. Inner tube 2. The length of the inner tube 2 is greater than that of the outer tube 1. The inner tube 2 penetrates into the outer tube 1 and extends from both ends of the outer tube 1. A water spray hole 8 is provided at one end close to the cone structure for water discharge. A water sealing device is provided on the proximal side of the outer tube. The water sealing device is a core 11 and a soft plug 12. The water spray holes 8 can be distributed on three circles with the axis of the outer tube 1 as the center. The circumference includes a plurality of first circles 13, a second circle and a third circle. The diameter of the first circle is smaller than the diameter of the second circle, and the diameter of the second circle is smaller than the diameter of the third circle. The axis of the water spray holes on the first circle is parallel to the axis of the outer tube, the axis of the water spray holes on the second circle is parallel to the axis of the outer tube, and the axis of the water spray holes on the third circle is parallel to the axis of the outer tube.

[0060] The aperture of each water spray hole is 200um, the distance between adjacent water spray holes is 0.5mm, the length of the outer tube is 15cm, the diameter of the outer tube is 15mm, the diameter of the inner tube is 3.5mm, the total water output of the water spray hole is 50mL / min. The length of the inner tube is 142mm, and the length of the outer tube is 140mm.

[0061] Application Examples

[0062] Taking the pressurized spray device for laser optical fiber of Example 1 as an example, when water is inletted, the water injection hole 4 of the device is connected to the water pipe to form a state of spraying and sucking out at the same time, and the contact port between the optical fiber and the optical fiber channel has a sealing function. During the operation, the surgical field is exposed, and the device is used for water mist spraying. The optical fiber enters through the optical fiber surgical channel 10 and is then plugged with a rubber plug 12. The water injection hole 4 is used for water injection and spraying. The total water output of the water spray hole is controlled to be 50mL / min. There are 3 rows of small holes on the cone structure 7, which produce a water column with a diameter of 0.2mm for surgical cooling. The negative pressure adsorption is increased by the adsorption hole 6, and the water is recovered in the surgical channel. The laser optical fiber acts on the tissue surface, releases laser energy, and generates spraying and absorbs liquid on the surface of the tissue at the same time, achieving the effect of cooling and spraying water. During the operation, when the optical fiber is used for treatment, the contact surface of the optical fiber needs to be sprayed and cooled. The operation is performed with water as the medium. According to the size of the laser energy output, the water intake needs to be increased. At this time, the pressure flow rate of the water intake needs to be changed.

[0063] Although the present invention has been disclosed as above by way of embodiments, it is not intended to limit the present invention. Any person having ordinary knowledge in the technical field may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the scope of the patent application attached hereto.

Claims

1. A pressurized spray device for laser optical fiber, comprising: An outer tube, the distal end of which is formed into a cone structure, and a plurality of water spray holes are provided on the outer circumference of the cone structure to spray around the action site of the aurora optical fiber; An inner tube, which is sleeved inside the outer tube, the central axis of the outer tube coincides with the central axis of the inner tube, and the inner tube can accommodate the laser optical fiber; A water injection joint connected to the outer pipe; An adsorption joint is connected to the inner tube.

2. The water spray device according to claim 1, characterized in that: The aperture size of each water spray hole is 100-400um.

3. The water spray device according to claim 1, characterized in that: The distance between the adjacent water spray holes is 0.5-1 mm.

4. The water spray device according to claim 1, characterized in that: Each water spray hole in the cone structure is cut by laser.

5. The water spray device according to claim 1, characterized in that: The cone structure is a cone whose diameter gradually decreases from the proximal end to the distal end.

6. The water spray device according to claim 1, characterized in that: The outer tube has a diameter of 5 to 20 mm, preferably 15 mm; The inner tube has a diameter of 2.5 to 5 mm, preferably 3.5 to 4.5 mm.

7. The water spray device according to claim 1, characterized in that: The length of the inner tube is greater than the length of the outer tube; Preferably, The length of the outer tube is 15 to 40 cm, preferably 15 to 30 cm; The length of the inner tube is 17 to 42 cm.

8. The water spray device according to claim 1, characterized in that: The adsorption joint is a Luer adsorption joint, which can absorb the moisture in the outer tube.

9. The water spray device according to claim 1, characterized in that: The total water output of the water spray hole is 1-100 mL / min.

10. The water spray device according to claim 1, characterized in that: The outer tube and the inner tube are both made of metal, preferably 304 stainless steel.

11. The water spray device according to claim 1, characterized in that: A water sealing device is provided on the proximal end of the outer tube.

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