Spraying pipe for assisting in lesion fixation under cell endoscope

Abstract

The utility model discloses a spraying tube for assisting in fixing lesions under a cell endoscope, which relates to the technical field of endoscope spraying tubes and comprises an injector and a sleeve, a hose is arranged in the sleeve, one end of the hose close to a rotary joint is fixedly connected with a right-angle sprayer, and one end of the rotary joint far away from the right-angle sprayer is fixedly connected with a coil tube. A spring tube is arranged in the sleeve; through the bending design of the coil pipe, the orientation of the right-angle spray head can be controlled, an area needing to be sprayed can be better covered, the operation flexibility and accuracy are improved, and the risk that mucous membranes are damaged when the endoscope and the right-angle spray head move can be reduced; by means of the rotating design of the right-angle spray head, medical staff can quickly adjust the spraying direction without repeatedly moving the endoscope to find the optimal spraying angle, the operation time is effectively shortened, the efficiency is improved, and discomfort of a patient is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of endoscope spray tubes, in particular to a spray tube for assisting the fixation of lesions under cell endoscopy. Background Art

[0002] An endoscopic spray tube is an auxiliary device used for endoscopic examination and treatment. It is a long and thin tube that can accurately spray liquid onto the surface of internal human tissues or organs under endoscopy. Its main functions are to clean the field of vision, assist in treatment, and perform local tissue processing. It is usually used in conjunction with a cytoendoscope to enter the patient's body. Since the cytoendoscope must be in complete contact with the lesion during observation, the distance between the cytoendoscope and the lesion, as well as whether the lesion is stable, are crucial for high-magnification endoscopy observation. In actual clinical work, it is often encountered that due to the influence of the patient's respiratory movement, the focus of the cytoendoscope is unstable and the lesion cannot be clearly observed. Therefore, an endoscopic spray tube is used to assist in fixing the lesion, thereby facilitating better observation of the lesion by the cytoendoscope.

[0003] The endoscopic spray tube in the existing clinical technology has the following problems:

[0004] (1) In clinical practice, the spray tube is usually placed against the normal mucosa around the lesion to observe the distal end of the lesion, and the movement of the lesion caused by respiratory movement is controlled to avoid affecting the observation of the lesion. At this time, the edge of the direct spray tube will contact the mucosa. Since the contact area between the edge of the tube and the mucosa is small, it is easy to cause damage to the mucosa at the contact point when scratched, thereby causing unnecessary damage. In severe cases, it may cause perforation, which has an adverse effect on the patient;

[0005] (2) For some pedunculated or larger lesions, even if the spray tube is pressed against the normal mucosa around the lesion, the lesion to be observed cannot be fully displayed, resulting in limited observation of cytoendoscopy;

[0006] (3) The existing spraying methods of the spray pipe are divided into direct spraying or side spraying, with a single direction. The spraying effect on the dorsal side of the distal end of the lesion is limited and cannot cover the entire lesion, or precisely spray the lesion locally, affecting the staining effect on the lesion.

[0007] In order to solve the above problems, a spray tube for assisting the fixation of lesions under cytoscopy is proposed. Utility Model Content

[0008] In order to solve the above technical problems, a spray tube for assisting the fixation of lesions under cell endoscopy is provided.

[0009] In order to achieve the above objectives, the present invention can be implemented by adopting the following technical solutions:

[0010] The utility model provides a spray pipe for auxiliary fixation of lesions under cytoendoscopy, comprising a syringe and a sleeve, wherein a hose is arranged inside the sleeve, one end of the hose is connected with the syringe, the end of the hose away from the syringe is rotatably connected with a swivel joint, the end of the sleeve away from the syringe is fixedly connected with the swivel joint, the end of the hose close to the swivel joint is fixedly connected with a right-angle spray head, the side of the swivel joint away from the right-angle spray head is fixedly connected with a coil, the coil is sleeved on the outside of the hose, a spring tube is arranged inside the sleeve, the two ends of the spring tube are respectively fixedly connected with the two ends of the sleeve, the spring tube is wound around the outside of the hose and the coil, one end of the coil close to the swivel joint is fixedly connected with two steel wire ropes, the two steel wire ropes are symmetrically arranged on the coil, two rope threading holes are provided inside the syringe, the two rope threading holes are symmetrically arranged on the syringe, the ends of the two steel wire ropes away from the coil respectively pass through the two rope threading holes, the inside of the syringe is rotatably connected with a knob, and the ends of the two steel wire ropes away from the coil are both fixedly connected with the knob.

[0011] Preferably, the length of the hose is the same as the length of the sleeve, and the length of the spring tube is the same as the length of the sleeve.

[0012] Preferably, a fixed wing is fixedly connected to the surface of the syringe, a sliding groove is provided on the fixed wing, a shift block is slidably connected inside the sliding groove, a push rod is slidably connected to the fixed wing, one end of the push rod is fixedly connected to the shift block, and the end of the push rod away from the shift block is fixedly connected to a bearing shell, a return spring 1 is provided inside the sliding groove, and both ends of the return spring 1 are respectively fixedly connected to the sliding groove and the shift block.

[0013] Preferably, a rubber pad is provided on one side of the bearing shell close to the knob.

[0014] Preferably, the end of the sleeve close to the syringe is fixedly connected to a plurality of fixing rods, and the plurality of fixing rods are equidistantly arranged on the sleeve along the circumferential direction, a return spring 2 is sleeved on the outer side of the fixing rod, one end of the return spring 2 is fixedly connected to the sleeve, a pressure ring is slidably connected to the plurality of fixing rods together, an end of the return spring 2 away from the sleeve is fixedly connected to the pressure ring, a plurality of pressing plates are fixedly connected to the side of the sleeve close to the syringe, the pressing plates are located on the inner side of the pressure ring, and the pressing plates are equidistantly arranged on the sleeve along the circumferential direction.

[0015] Preferably, the pressing sheet is arc-shaped, and a rubber pad 2 is provided on the side of the pressing sheet close to the syringe.

[0016] From the above, the characteristics and advantages of the utility model are:

[0017] The bending design of the snake tube cooperates with the curved head end of the right-angle nozzle to control the direction of the right-angle nozzle, so as to better cover the area that needs to be sprayed, improve the flexibility and accuracy of the operation, and during the endoscopic operation, there is no need to frequently adjust the position of the endoscope itself. The same or even higher accuracy can be achieved by adjusting the angle of the spray tube head end, which reduces the complexity of the operation, improves the overall operation efficiency, and helps to reduce the risk of damaging the mucosa when the endoscope and the right-angle nozzle move;

[0018] Through the rotating design of the right-angle nozzle and the curved head end of the right-angle nozzle, medical staff can quickly adjust the spraying direction without having to repeatedly move the endoscope to find the best spraying angle, which effectively shortens the operation time, improves efficiency, and reduces patient discomfort, which helps to improve patient acceptance;

[0019] The right-angle bending design of the right-angle nozzle has a larger contact area with the patient's mucosa than the traditional tubular nozzle, and the pressure against the mucosa is smaller, which is less likely to cause mucosal damage and bleeding when the spray tube moves with the endoscope;

[0020] Through the bending and rotation of the right-angle nozzle, medical staff can operate the raised part of the right-angle nozzle to push or pull the lesion, pull the distal end of the lesion toward the proximal end, so that the endoscope can observe the side and distal ends of the lesion. Compared with the existing tubular nozzle, not only can the dye spraying be targeted at the local area, the dyeing is more accurate, but also the effect of assisting the endoscope to fully observe the lesion can be achieved;

[0021] Through the setting of the bearing and the pressing plate, the right-angle nozzle can be rotated and bent to assist in fixing the right-angle nozzle. Not only can the angle of the right-angle nozzle be more precise, but the right-angle nozzle can also be fixed at an angle that is conducive to spraying or endoscopic observation of lesions, which helps to reduce the fatigue of the hands of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the overall structure shown in the utility model;

[0023] Figure 2 It is a three-dimensional schematic diagram of the structure of the syringe and right-angle nozzle shown in the utility model;

[0024] Figure 3 The utility model shown in Figure 2 The enlarged schematic diagram at A in the middle;

[0025] Figure 4 It is a three-dimensional schematic diagram of the structure of the shift block and the bearing bush etc. shown in the utility model;

[0026] Figure 5 It is a three-dimensional schematic diagram of the structure of the steel wire rope and the rope threading hole shown in the utility model;

[0027] Figure 6 It is a cross-sectional schematic diagram of the structure of the syringe, knob, etc. shown in the utility model;

[0028] Figure 7 The utility model shown in Figure 4 Enlarged schematic diagram of point B in the middle.

[0029] Among them, the figure numbers in the utility model are: 1, syringe; 2, sleeve; 3, hose; 4, rotary joint; 5, right-angle nozzle; 6, coil; 7, spring tube; 8, wire rope; 9, rope threading hole; 10, knob; 11, fixed wing; 12, sliding groove; 13, dial block; 14, push rod; 15, bearing; 16, return spring 1; 17, fixed rod; 18, return spring 2; 19, pressure ring; 20, pressure sheet. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0031] like Figure 1 to Figure 7 As shown, it is an embodiment provided by the utility model, and a spray tube for assisting the fixation of lesions under cell endoscopy is described in detail below:

[0032] A spray tube for assisting fixation of lesions under endoscopic cell endoscopy, such as Figure 1 to Figure 6As shown, it includes: a syringe 1 and a sleeve 2, a hose 3 is arranged inside the sleeve 2, and a dye is added to the syringe 1 through a three-way valve. The above structure is the prior art and is not repeated here. The length of the hose 3 is the same as that of the sleeve 2, one end of the hose 3 is connected to the syringe 1, and the end of the hose 3 away from the syringe 1 is rotatably connected to a rotary joint 4, and the end of the sleeve 2 away from the syringe 1 is fixedly connected to the rotary joint 4, and the end of the hose 3 close to the rotary joint 4 is fixedly connected to a right-angle nozzle 5, and the side of the rotary joint 4 away from the right-angle nozzle 5 is fixedly connected to a coil 6, which is sleeved on the outside of the hose 3, and a spring tube 7 is arranged inside the sleeve 2. The length of the spring tube 7 is the same as that of the sleeve 2, and the two ends of the spring tube 7 are respectively fixedly connected to the two ends of the sleeve 2, and the spring tube 7 is wound around the outside of the hose 3 and the coil 6. The end of the coil 6 close to the rotary joint 4 is fixedly connected to two steel wire ropes 8, and the two steel wire ropes 8 are symmetrically arranged on the coil 6. Two rope threading holes 9 are provided inside the syringe 1, and the two rope threading holes 9 are symmetrically arranged on the syringe On the syringe 1, the ends of the two steel wires 8 away from the coil 6 are respectively passed through two rope holes 9, the inside of the syringe 1 is rotatably connected with a knob 10, the ends of the two steel wires 8 away from the coil 6 are fixedly connected to the knob 10, the two steel wires 8 are respectively fixedly connected to the upper and lower sides of the knob 10, the surface of the syringe 1 is fixedly connected with a fixed side wing 11, the fixed side wing 11 is provided with a sliding groove 12, the sliding groove 12 is located on the side of the fixed side wing 11 close to the knob 10, and the inside of the sliding groove 12 is slidably connected with a dial Block 13, a push rod 14 is slidably connected to the fixed wing 11, one end of the push rod 14 is fixedly connected to the shift block 13, and the end of the push rod 14 away from the shift block 13 is fixedly connected to a bearing bush 15, a return spring 16 is arranged inside the sliding groove 12, and the two ends of the return spring 16 are respectively fixedly connected to the sliding groove 12 and the shift block 13, a rubber pad 1 is arranged on the inner arc surface of the bearing bush 15, the bearing bush 15 forms an extrusion fit with the side surface of the knob 10, and a turntable for driving the knob 10 to rotate is arranged outside the knob 10.

[0033] Further, such as Figure 4 , Figure 7 As shown, a plurality of fixing rods 17 are fixedly connected to one end of the sleeve 2 close to the syringe 1, and the plurality of fixing rods 17 are equidistantly arranged on the sleeve 2 along the circumferential direction, and a second return spring 18 is sleeved on the outer side of the fixing rod 17, and one end of the second return spring 18 is fixedly connected to the sleeve 2, and a pressing ring 19 is slidably connected to the plurality of fixing rods 17 together, and one end of the second return spring 18 away from the sleeve 2 is fixedly connected to the pressing ring 19, and a plurality of pressing sheets 20 are fixedly connected to the side of the sleeve 2 close to the syringe 1, and the plurality of pressing sheets 20 are all located on the inner side of the pressing ring 19, and the plurality of pressing sheets 20 are equidistantly arranged on the sleeve 2 along the circumferential direction, and the pressing sheets 20 are arc-shaped, and a second rubber pad is arranged on the inner side of the pressing sheet 20, that is, the side close to the syringe 1, and the pressing ring 19 and the pressing sheet 20 form an extrusion fit.

[0034] In combination with the above embodiments, the entire working process and working principle of the above embodiments are as follows:

[0035] The initial state is:

[0036] The knob 10 is not rotated, the return spring 16 is in a compressed state, the shift block 13 is pushed by the return spring 16 to the end of the sliding groove 12 close to the push rod 14, the rubber pad 1 of the bearing 15 presses the knob 10, the return spring 2 18 is in a compressed state, the pressure ring 19 is pushed by the return spring 2 18 to the end of the fixed rod 17 away from the sleeve 2, the pressing piece 20 is bent toward the syringe 1 under the pressure of the pressing ring 19, and the side of the pressing piece 20 with the rubber pad 2 is pressed against the syringe 1.

[0037] The working status is:

[0038] Rotating right angle nozzle 5:

[0039] During use, the spray tube follows the endoscope into the patient's body. When the right-angle nozzle 5 follows the endoscope to the vicinity of the lesion, if the right-angle nozzle 5 is not facing the lesion, the medical staff can hold the syringe 1 in the right hand, and hold the end of the sleeve 2 close to the syringe 1 with the left hand, and then use the left thumb to press the pressure ring 19. Under the limiting action of multiple fixing rods 17, the pressure ring 19 slides toward the sleeve 2 and squeezes the reset spring 2 18. In the process of the medical staff using the left hand to squeeze the pressure ring 19, the pressure ring 19 slides toward the sleeve 2 and squeezes the pressing piece 20. The compression is gradually weakened, causing the pressing piece 20 to gradually rebound until the rubber pad on the pressing piece 20 is no longer in contact with the syringe 1. At this time, the syringe 1 loses its squeezing, the medical staff can use the right hand to rotate the syringe 1 through the fixed wing 11, so that the syringe 1 drives the hose 3 to rotate inside the spring tube 7, thereby driving the right-angle nozzle 5 to rotate until the end of the right-angle nozzle 5 faces the lesion, and then the medical staff releases the left hand, so that the reset spring 2 18 is reset under the action of elastic force and pushes the pressure ring 19, so that the pressure ring 19 is reset and squeezes the pressing piece 20, and then the side of the pressing piece 20 with the rubber pad 2 is pressed against the surface of the end of the syringe 1 again, so as to realize the connection and fixation of the sleeve 2 and the syringe 1, so that after the right-angle nozzle 5 is rotated to face the lesion, the right-angle nozzle 5 is kept in the direction where it can be sprayed accurately, which is convenient for use.

[0040] Adjust the angle of the right-angle nozzle 5:

[0041] When the angle of the right-angle nozzle 5 needs to be adjusted, the medical staff inserts the index finger and middle finger of the right hand into the fixed wing 11, and then uses the right thumb to push the shift block 13 to the side away from the push rod 14, so that the shift block 13 drives the push rod 14 to slide to the side away from the knob 10, and at the same time squeezes the reset spring 16, so that the bearing bush 15 no longer squeezes the knob 10 under the drive of the push rod 14. At this time, the medical staff uses the left hand to rotate the outside of the knob 10. When the medical staff Figure 2 In the state shown, when the knob 10 is rotated clockwise, the steel wire 8 at the top of the knob 10 is pulled by the knob 10, so that the steel wire 8 pulls the upper side of the coil 6 to move closer to the syringe 1, so that the end of the coil 6 connected to the rotary joint 4 is bent upward, thereby driving the rotary joint 4 and the right-angle nozzle 5 to bend upward. Figure 2 When the knob 10 is rotated counterclockwise in the state shown in the figure, the wire rope 8 at the bottom of the knob 10 is pulled by the knob 10, so that the wire rope 8 pulls the lower side of the coil 6 to move in the direction close to the syringe 1, so that the end of the coil 6 connected to the rotary joint 4 is bent downward, thereby driving the rotary joint 4 and the right-angle nozzle 5 to bend downward, so as to achieve the effect of accurately controlling the spraying direction. After the adjustment is completed, the thumb of the medical staff's right hand releases the shift block 13, so that the shift block 13 pushes the shift block 13 and the push rod 14 to reset under the action of the reset spring 16, so that the inner arc surface of the bearing 15 with the rubber pad 1 again presses against the knob 10, so as to fix the knob 10, which not only enables the right-angle nozzle 5 to maintain a precise spraying direction, but also further reduces the fatigue of the medical staff's hands.

[0042] Showing lesions:

[0043] When the end of the right-angle nozzle 5 is directed toward the lesion, the end of the right-angle nozzle 5 is moved to the side of the lesion by operating the endoscope, and then the knob 10 can be used to pull the wire rope 8, and the wire rope 8 drives the coil 6 to bend, so that the coil 6 drives the right-angle nozzle 5 to bend, so that the convex part of the right-angle nozzle 5 is bent and contacts the side end or distal end of the lesion, and then the sleeve 2 and the right-angle nozzle 5 are driven to move by the endoscope, so that the convex part of the right-angle nozzle 5 can push or pull the lesion, and pull the distal end of the lesion toward the proximal end, so that the endoscope can observe the side end and distal end of the lesion. Compared with the existing tubular nozzle, not only can the dye spraying be targeted at the local area and the dyeing is more accurate, but also the effect of assisting the endoscope to fully observe the lesion can be achieved. At the same time, the bent convex part is used to contact the mucosa to reduce damage to the mucosa.

[0044] The above description is only an embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spray tube for assisting the fixation of lesions under cell endoscopy, characterized in that: The invention comprises a syringe (1) and a sleeve (2), wherein a hose (3) is arranged inside the sleeve (2), one end of the hose (3) is connected to the syringe (1), the end of the hose (3) away from the syringe (1) is rotatably connected to a rotary joint (4), the end of the sleeve (2) away from the syringe (1) is fixedly connected to the rotary joint (4), the end of the hose (3) close to the rotary joint (4) is fixedly connected to a right-angle nozzle (5), the side of the rotary joint (4) away from the right-angle nozzle (5) is fixedly connected to a coil (6), the coil (6) is sleeved on the outside of the hose (3), and a spring tube (7) is arranged inside the sleeve (2), and the two ends of the spring tube (7) are respectively The spring tube (7) is fixedly connected to both ends of the sleeve (2), the spring tube (7) is wound around the outside of the hose (3) and the coiled tube (6), one end of the coiled tube (6) close to the rotary joint (4) is fixedly connected to two steel wires (8), the two steel wires (8) are symmetrically arranged on the coiled tube (6), the inside of the syringe (1) is provided with two rope threading holes (9), the two rope threading holes (9) are symmetrically arranged on the syringe (1), the ends of the two steel wires (8) away from the coiled tube (6) respectively pass through the two rope threading holes (9), the inside of the syringe (1) is rotatably connected to a knob (10), the ends of the two steel wires (8) away from the coiled tube (6) are fixedly connected to the knob (10).

2. The spray tube for assisted fixation of lesions under cell endoscopy according to claim 1 is characterized in that: The length of the hose (3) is the same as that of the sleeve (2), and the length of the spring tube (7) is the same as that of the sleeve (2).

3. The spray tube for assisted fixation of lesions under cell endoscopy according to claim 1 is characterized in that: A fixed wing (11) is fixedly connected to the surface of the syringe (1), a sliding groove (12) is provided on the fixed wing (11), a shift block (13) is slidably connected inside the sliding groove (12), a push rod (14) is slidably connected to the fixed wing (11), one end of the push rod (14) is fixedly connected to the shift block (13), and one end of the push rod (14) away from the shift block (13) is fixedly connected to a bearing bush (15), and a return spring (16) is provided inside the sliding groove (12), and two ends of the return spring (16) are respectively fixedly connected to the sliding groove (12) and the shift block (13).

4. The spray tube for assisted fixation of lesions under cell endoscopy according to claim 3 is characterized in that: A rubber pad is provided on one side of the bearing bush (15) close to the knob (10).

5. The spray tube for assisted fixation of lesions under cell endoscopy according to claim 1, characterized in that: A plurality of fixing rods (17) are fixedly connected to one end of the sleeve (2) close to the syringe (1), and the plurality of fixing rods (17) are equidistantly arranged on the sleeve (2) along the circumferential direction; a second return spring (18) is sleeved on the outer side of the fixing rod (17), and one end of the second return spring (18) is fixedly connected to the sleeve (2); a pressing ring (19) is slidably connected to the plurality of fixing rods (17), and one end of the second return spring (18) away from the sleeve (2) is fixedly connected to the pressing ring (19); a plurality of pressing sheets (20) are fixedly connected to one side of the sleeve (2) close to the syringe (1), and the pressing sheets (20) are located on the inner side of the pressing ring (19) and are equidistantly arranged on the sleeve (2) along the circumferential direction.

6. The spray tube for assisted fixation of lesions under cell endoscopy according to claim 5, characterized in that: The pressing sheet (20) is arc-shaped, and a second rubber pad is provided on a side of the pressing sheet (20) close to the syringe (1).

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