Cannula clamping holder

Abstract

The present invention belongs to the technical field of medical devices and discloses a cannula clamping holder, which includes a clamping sleeve having mounting notches on both sides of one end, the two mounting notches being symmetrically distributed with respect to the center of the clamping sleeve, a support plate being rotatably connected to each of the two mounting notches, and elastic tooth pads being rotatably connected to the upper and lower ends of the support plate. Releasing the elastic force of a torsion spring drives the support plate to rotate back to its original position, moving the two support plates outward and moving the elastic tooth pads so that the elastic tooth pads on both sides are positioned precisely between the patient's upper and lower sets of masticatory teeth. When the patient's mandibular muscles contract naturally, the upper and lower masticatory teeth come into contact with the elastic tooth pads at the top and bottom of the support plate, and the elastic tooth pads serve to support the patient's mouth. Compared to conventional clamping holders, this design solves the problem of the patient's front teeth biting on the outer wall of the clamping holder for extended periods, thus avoiding the issue of loosening and deformation of the patient's front teeth due to prolonged force.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and specifically relates to a clamping holder for a cannula.

Background Art

[0002] A cannula means inserting a catheter into the human body through the body surface and the body cavity of a person, and injecting and extracting gas or liquid. General cannulas include a tracheal cannula (used for ventilation by inserting the cannula into the trachea of the human body through the pharyngeal cavity and glottis), a gastric tube cannula (inserting the cannula into the stomach of the human body through the esophagus to extract gastric juice or inject nutrient solution). Generally, after inserting the cannula, it is necessary to fix the cannula with a clamping holder to ensure the stability of the cannula.

[0003] Some of the conventional cannula holders do not have an ideal support structure for the patient's mouth during use. Due to the natural contraction of the patient's jaw muscles, the patient's front teeth will bite the outer wall of the holder for a long time. Since the front teeth are subjected to force for a long time, the front teeth are likely to loosen, causing discomfort to the patient.

Summary of the Invention

Problems to be Solved by the Invention

[0004] In view of the deficiencies of the prior art, the object of the present invention is to provide a clamping holder for a cannula, which releases the elastic force of the torsion spring, drives the support plate to rotate back to its original position, moves the two support plates to the outer peripheral side to move the elastic tooth pads, and positions the elastic tooth pads on both sides just between the upper and lower two sets of chewing teeth of the patient. When the patient's jaw muscles contract naturally, the patient's upper and lower chewing teeth just contact the elastic tooth pads at the top and bottom of the support plate, and the elastic tooth pads play a role in supporting the patient's mouth. Compared with the conventional clamping holder, it solves the problem that the patient's front teeth bite the outer wall of the clamping holder for a long time, and further avoids the occurrence of problems such as loosening and deformation of the patient's front teeth due to the long-term force on the front teeth.

Means for Solving the Problems

[0005] The object of the present invention can be achieved by the following technical solutions.

[0006] A clamping holder for cannulas, It includes a clamping sleeve with mounting notches on both sides of one end, the two mounting notches being symmetrically distributed with respect to the center of the clamping sleeve, a support plate being rotatably connected to each of the two mounting notches, and elastic tooth pads being fixedly connected to the upper and lower ends of the support plate. Within the mounting notch, a hinge rod is pivotally connected along the vertical direction, and one end of the support plate is fixedly connected to the side wall of the hinge rod. Torsion springs are covered on both the upper and lower ends of the support plate and the hinge rod. The ends of the two torsion springs closest to the support plate are fixedly connected to the support plate, and the other ends are fixedly connected to the top and bottom walls of the mounting notch, respectively. Arc-shaped gears are fixedly connected to the side walls of the two hinge rods, and racks mesh with the outer circumference of the two arc-shaped gears, and the two racks are both located between the arc-shaped gears and the inner wall of the mounting notch, and first chutes are opened inside the side walls on both sides of the clamping sleeve, each communicating with the mounting notch along its length, and link strips are slidably connected within the two first chutes, and the ends of the two link strips are fixedly connected to the corresponding ends of the racks.

[0007] In a preferred embodiment of the present invention, levers are fixedly connected to the ends of the two link strips away from the rack, the levers are mounted perpendicular to the link strips, and second chutes communicating with the interior of the first chute are opened on both sides of the side wall of the clamping sleeve, the two levers are slidably connected to the corresponding second chutes, the outer ends of the two levers extend to the outside of the second chutes, and a single arc-shaped connecting frame is commonly connected to the outer ends of the two levers, the arc-shaped connecting frame is located on the outer circumference of the top of the clamping sleeve.

[0008] In a preferred embodiment of the present invention, the two support plates are arranged symmetrically with respect to the center of the clamping sleeve, and the two support plates are arranged in an arc shape.

[0009] In a preferred embodiment of the present invention, the elastic tooth pad is manufactured from a soft silicone material.

[0010] In a preferred embodiment of the present invention, two symmetrically distributed clamping blocks are provided inside the clamping sleeve, two clamping ejector rods, distributed vertically, are fixedly connected to the distant sides of the two clamping blocks, the two clamping ejector rods slide through the clamping sleeve and extend into the mounting notch, thrust seats are fixedly connected to the ends of the two clamping ejector rods away from the clamping blocks, a reset spring is fixedly connected to the side of the thrust seat closest to the clamping block, the reset spring covers the outer circumference of the clamping ejector rod, and the end of the reset spring away from the thrust seat is fixedly connected to the side wall of the mounting notch. Guide wheels are rotatably connected to the upper and lower sides of the two thrust seats on the same side, and cams are fixedly connected to the upper and lower ends of the arc-shaped gear, with the two cams corresponding one-to-one to the positions of the two guide wheels.

[0011] In a preferred embodiment of the present invention, the two clamping blocks are arranged in an arc shape and exhibit a symmetrical distribution with respect to the center of the clamping sleeve.

[0012] In a preferred embodiment of the present invention, a moisture supply retaining plate is slidably connected to the outer circumference of the clamping sleeve, a moisture supply rubber bag is fixedly connected to the side of the moisture supply retaining plate near the support plate, the moisture supply rubber bag is located at the edge of the moisture supply retaining plate, a plurality of moisture supply pores are made on the side of the moisture supply rubber bag near the support plate, all of the plurality of moisture supply pores communicate with the inside of the moisture supply rubber bag, and the inside of the moisture supply rubber bag is filled with a water-absorbing sponge block. A circular groove is drilled through the upper part of the water supply retaining plate, and a water supply pipe is fixedly connected to the circular groove. A water supply hole is drilled through the upper part of the side of the water supply rubber bag closest to the water supply retaining plate, and is provided coaxially with the circular groove. The inner diameter of the water supply hole is smaller than the inner diameter of the circular groove, and the inner end of the water supply pipe is fixedly connected to the water supply rubber bag around the water supply hole. A rubber stopper is fitted inside the water supply pipe.

[0013] In a preferred embodiment of the present invention, the moisture supply retaining plate is provided in an arc shape.

[0014] In a preferred embodiment of the present invention, a plurality of rebound seats distributed at equal angles are fixedly connected to the outer wall of the clamping sleeve, the rebound seats are located on the side of the moisture supply retaining plate away from the moisture supply rubber bag, a rebound rubber band is fixedly connected to the side of each of the plurality of rebound seats that is close to the moisture supply retaining plate, and the ends of each of the plurality of rebound rubber bands that are away from the rebound seats are fixedly connected to the surface of the moisture supply retaining plate.

[0015] In a preferred embodiment of the present invention, the hydration rubber bag is manufactured from a highly elastic rubber material.

[0016] Some of the nouns, conjunctions, or adjectives related to the above technical proposal are explained below.

[0017] A fixed connection is a connection in which components or parts are fixed in place and there is no relative movement between them. There are two types: removable connections and non-removable connections.

[0018] (1) A removable connection means that components are secured using screws, splines, tapers, etc. This connection method allows for removal during repairs without damaging the components. However, the connectors used must be of the correct specifications (bolt, key, taper length, etc.) and properly tightened.

[0019] (2) Non-removable connections mainly refer to welds, rivets, mortise and tenon joints, etc. Because repairs or replacements require forging, sawing, or oxygen cutting, the components are generally not reusable. Attention must also be paid to process quality, technical inspection, and corrective measures (e.g., calibration, polishing) during connection.

[0020] Screw connection refers to the process of connecting two connected objects in a detachable manner using a screw component (or the threaded portion of the connected object).

[0021] A sliding connection means that two objects are in contact but are not fixed together and can slide relative to each other.

[0022] Rotary connection means that the connection between components allows them to rotate relative to each other. [Effects of the Invention]

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. In the present invention, an arc-shaped connecting frame is pulled to slide two levers along the second chute. The two levers slide to slide two link strips along the first chute and further move two racks. During the movement of the two racks, the meshing arc-shaped gears are rotated, and then the two support plates are rotated along the contact position between the hinge rods. During this period, the torsion springs are both torsionally deformed and store energy, thereby contracting the two symmetrically distributed support plates and the elastic tooth pads in the middle. As a result, it becomes easier to place this clamping holder in the patient's oral cavity, and the convenience of installing this clamping holder can be improved.

[0025] 2. In the present invention, the tension on the arc-shaped connecting frame is released to release the elastic force of the torsion spring, and it is driven to rotate the support plates outward to their original positions along the contact position between the hinge rods and the mounting notch. The two support plates are moved to the outer peripheral side to move the elastic tooth pads, and the elastic tooth pads on both sides are just positioned between the upper and lower two sets of chewing teeth of the patient. When the medical staff releases the opening force on the patient's mouth and the patient's jaw muscles contract naturally, the patient's upper and lower chewing teeth just contact the elastic tooth pads at the top and bottom of the support plates, and the elastic tooth pads play the role of supporting the patient's mouth. Compared with the conventional clamping holder, it solves the problem that the patient's front teeth bite the outer wall of the clamping holder for a long time, and further avoids the occurrence of problems such as loosening and deformation of the patient's front teeth due to long-term force reception.

[0026] 3. In the present invention, while the torsion spring drives the support plates to rotate to both sides, the cam connected to the arc-shaped gear is rotated, and thereby the cam pushes to move the guide ring to the middle of the clamping sleeve. By moving the guide ring, together with the clamping ejector rod, the thrust seat is moved to the middle along the sliding connection position with the clamping sleeve, and the clamping block is further pushed to move. As a result, after the two symmetrically distributed clamping blocks are moved to the middle, the clamping of the cannula is automatically completed. Therefore, compared with the conventional clamping holder, the usability of the clamping holder is greatly improved.

[0027] 4. In this invention, as the moisture supply pressing plate is slid toward the patient's lips, multiple rebound rubber bands are elastically stretched. The moisture supply rubber bag is moved until it contacts the patient's lips. By moving the moisture supply rubber bag together with the water-absorbing sponge block, the moisture supply rubber bag is pressed and elastically contracted. This presses the water-absorbing sponge block inside the moisture supply rubber bag, and the clean water absorbed inside the water-absorbing sponge block is pushed out through multiple moisture supply pores. As a result, moisture is supplied to the patient's lips, significantly improving convenience and efficiency compared to moisture supply with cotton swabs. After moisture supply to the patient's lips is complete, when the moisture supply pressing plate is released, the rebound force of the multiple rebound rubber bands drives the moisture supply pressing plate and moisture supply rubber bag to slide along the outer wall of the clamping sleeve and reset, automatically releasing the pressure from the moisture supply rubber bag on the patient's lips. [Brief explanation of the drawing]

[0028] To more clearly illustrate the embodiments of the present invention or the technical concepts in the prior art, the drawings that may be used in the description of the embodiments or the prior art are briefly described below. Obviously, those skilled in the art can obtain other drawings based on these drawings without requiring any creative work. [Figure 1] This is one of the schematic diagrams of the structure of the present invention. [Figure 2] This is the second schematic diagram of the structure of the present invention. [Figure 3] This is the third schematic diagram of the structure of the present invention. [Figure 4] This is a schematic diagram of the enlarged structure of part A in Figure 3 of the present invention. [Figure 5] This is a schematic diagram of the cross-sectional structure of the lip wetting member in the present invention. [Figure 6] This is a schematic diagram of the enlarged structure of part B in Figure 5 of the present invention. [Figure 7] This is a schematic diagram of the cross-sectional structure of the clamping sleeve in the present invention. [Figure 8] This is a schematic diagram of the enlarged structure of portion C in Figure 7 in the present invention. [Modes for carrying out the invention]

[0029] The following describes the technical concepts in the embodiments of the present invention clearly and completely in relation to the drawings of the embodiments of the present invention. Clearly, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments that can be obtained by those skilled in the art without creative work based on the embodiments of the present invention are within the scope of the protection of the present invention.

[0030] In describing the present invention, it should be understood that terms such as "opening," "top," "bottom," "thickness," "top," "middle," "length," "inside," and "circumference" merely indicate direction or positional relationships and are used for the convenience of describing the present invention and to simplify the explanation. They do not suggest or imply that the parts or elements mentioned have a specific orientation or must be configured and operated in a specific orientation, and should not be understood as limiting the present invention.

[0031] Some conventional cannula holders lack an ideal support structure for the patient's mouth during use. Due to the natural contraction of the patient's mandibular muscles, the patient's front teeth bite down on the outer wall of the holder for extended periods. This prolonged pressure on the front teeth can cause them to loosen, leading to patient discomfort. Furthermore, some conventional clamping holders lack a function to moisten the patient's lips, requiring nurses to apply water to the patient's lips using a cotton swab, making the procedure even more inconvenient.

[0032] The two problems mentioned above can be solved using the following method.

[0033] As shown in Figures 1-8, the present invention provides one embodiment in which a cannula clamping holder is, The clamping sleeve 1 includes mounting notches 101 on both sides of one end, the two mounting notches 101 are symmetrically distributed with respect to the center of the clamping sleeve 1, a support plate 202 is rotatably connected to each of the two mounting notches 101, and elastic tooth pads 203 are fixedly connected to the upper and lower ends of the support plate 202. Within the mounting notch 101, a hinge rod 201 is pivotally connected along the vertical direction, and one end of the support plate 202 is fixedly connected to the side wall of the hinge rod 201. Torsion springs 204 are covered on both the upper and lower ends of the hinge rod 201 of the support plate 202, and the ends of the two torsion springs 204 closest to the support plate 202 are fixedly connected to the support plate 202, while the other ends are fixedly connected to the top and bottom walls of the mounting notch 101, respectively. Arc-shaped gears 205 are fixedly connected to the side walls of both hinge rods 201, and racks 206 mesh with the outer circumference of both arc-shaped gears 205, and both racks 206 are located between the arc-shaped gears 205 and the inner wall of the mounting notch 101, and first chutes 102 are opened inside the side walls on both sides of the clamping sleeve 1, both along their longitudinal direction and communicating with the mounting notch 101, and link strips 207 are slidably connected inside both first chutes 102, and the ends of the two link strips 207 are fixedly connected to the ends of the corresponding racks 206.

[0034] During insertion, the medical professional first opens the patient's mouth, pulls the two link strips 207 and slides them along the first chute 102, and then moves the two racks 206. As the racks 206 move, they rotate the interlocking arc-shaped gears 205. Next, the two support plates 202 are rotated along the contact points with the hinge rods 201. Meanwhile, the torsion springs 204 both deform to the torsion and store energy, thereby compressing the two symmetrically distributed support plates 202 and elastic tooth pads 203 in the middle. This makes it easier to position the clamping holder in the patient's oral cavity and improves the convenience of attaching the clamping holder. Immediately after positioning the clamping holder in the patient's oral cavity, the cannula is inserted into the patient's oral cavity through the clamping sleeve 1. Next, the tension on the link strip 207 is released, releasing the elastic force of the torsion spring 204 and driving the support plate 202 to rotate outward to its original position along the contact point between the hinge rod 201 and the mounting notch 101. Moving the two support plates 202 outward moves the elastic tooth pads 203, positioning the elastic tooth pads 203 on both sides precisely between the patient's two sets of upper and lower masticatory teeth. When the medical professional releases the opening force on the patient's mouth and the patient's mandibular muscles contract naturally, the patient's upper and lower masticatory teeth come into contact with the elastic tooth pads 203 at the top and bottom of the support plates 202, and the elastic tooth pads 203 serve to support the patient's mouth. Compared to conventional clamping holders, this solves the problem of the patient's anterior teeth biting on the outer wall of the clamping holder for a long time, further avoiding the problem of the patient's anterior teeth loosening and deforming due to prolonged force exposure.

[0035] In one embodiment of the present invention, levers 208 are fixedly connected to the ends of two link strips 207 that are away from the rack 206. The levers 208 are mounted perpendicular to the link strips 207. On both sides of the side wall of the clamping sleeve 1, second chutes 103 are opened, each communicating with the interior of a first chute 102. The two levers 208 are slidably connected within the corresponding second chutes 103, and the outer ends of the two levers 208 extend outside the second chutes 103. A single arc-shaped connecting frame 209 is commonly connected to the outer ends of the two levers 208. The arc-shaped connecting frame 209 is located on the outer circumference of the top of the clamping sleeve 1.

[0036] The medical personnel pull the arc-shaped connecting frame 209, sliding the two levers 208 along the second chute 103. The two levers 208 slide, sliding the two link strips 207 along the first chute 102.

[0037] In one embodiment of the present invention, the two support plates 202 are arranged symmetrically with respect to the center of the clamping sleeve 1. The two support plates 202 are arranged in an arc shape, making it easy to fit the tooth distribution.

[0038] In one embodiment of the present invention, the elastic tooth pad 203 is made of a soft silicone material.

[0039] In one embodiment of the present invention, two symmetrically distributed clamping blocks 301 are provided inside the clamping sleeve 1, and two clamping ejector rods 302, distributed vertically, are fixedly connected to the distant sides of the two clamping blocks 301. The two clamping ejector rods 302 slide through the clamping sleeve 1 and extend into the mounting notch 101. Thrust seats 304 are fixedly connected to the ends of the two clamping ejector rods 302 that are away from the clamping blocks 301. A reset spring 303 is fixedly connected to the side of the thrust seat 304 that is close to the clamping block 301, and the reset spring 303 covers the outer circumference of the clamping ejector rod 302. The end of the reset spring 303 that is away from the thrust seat 304 is fixedly connected to the side wall of the mounting notch 101. Guide wheels 305 are rotatably connected to the upper and lower sides of the two thrust seats 304 on the same side, and cams 306 are fixedly connected to the upper and lower ends of the arc-shaped gear 205. The two cams 306 correspond one-to-one to the positions of the two guide wheels 305.

[0040] The torsion spring 204 rotates the support plate 202 to both sides, simultaneously rotating the cam 306 connected to the arc gear 205, thereby pushing the guide wheel 305 to the middle of the clamping sleeve 1. Moving the guide wheel 305, together with the clamping ejector rod 302, moves the thrust seat 304 to the middle along the sliding connection position with the clamping sleeve 1, pushing the clamping block 301 further. As a result, after moving the two symmetrically distributed clamping blocks 301 to the middle, the cannula clamping is automatically completed, significantly improving the usability of the clamping holder compared to conventional clamping holders.

[0041] In one embodiment of the present invention, the two clamping blocks 301 are arranged in an arc shape with respect to the center of the clamping sleeve 1, and are convenient for clamping the outer wall of the catheter in close contact with it.

[0042] In one embodiment of the present invention, a moisture supply retaining plate 401 is slidably connected to the outer circumference of the clamping sleeve 1. A moisture supply rubber bag 402 is fixedly connected to the side of the moisture supply retaining plate 401 closest to the support plate 202. The moisture supply rubber bag 402 is located at the edge of the moisture supply retaining plate 401. Multiple moisture supply pores 403 are opened on the side of the moisture supply rubber bag 402 closest to the support plate 202. All of the multiple moisture supply pores 403 communicate with the inside of the moisture supply rubber bag 402, and the inside of the moisture supply rubber bag 402 is filled with a water-absorbing sponge block 404. A circular groove 405 is opened through the upper part of the moisture supply retaining plate 401. A water injection pipe 406 is fixedly connected to the circular groove 405. A water supply hole is drilled through the upper side of the water supply rubber bag 402, on the side closest to the water supply retaining plate 401, and is coaxial with the circular groove 405. The inner diameter of the water supply hole is smaller than the inner diameter of the circular groove 405. The inner end of the water supply pipe 406 is fixedly connected to the water supply rubber bag 402 around the water supply hole, and a rubber stopper 407 is fitted inside the water supply pipe 406.

[0043] If the patient's lips become dry during treatment, a certain amount of clean water is drawn up using a syringe, the needle of the syringe is passed through the rubber stopper 407, and the clean water is injected into the hydration rubber bag 402. The clean water injected into the hydration rubber bag 402 is immediately absorbed by the water-absorbing sponge block 404, permeating the entire water-absorbing sponge block 404 and making it moist. Then, the syringe is removed, and the hydration retaining plate 401 is pushed to move the hydration rubber bag 402 together with the water-absorbing sponge block 404, bringing the hydration rubber bag 402 into contact with the patient's lips. This causes the hydration rubber bag 402 to be pressed and elastically contracted. As a result, the water-absorbing sponge block 404 inside the hydration rubber bag 402 is pressed, and the clean water absorbed inside the water-absorbing sponge block 404 is pushed out through the multiple hydration pores 403, replenishing moisture to the patient's lips. Therefore, it offers significantly improved convenience and efficiency compared to using cotton swabs for hydration.

[0044] In one embodiment of the present invention, the moisture supply pressing plate 401 is arranged in an arc shape to easily fit the lips.

[0045] In one embodiment of the present invention, a plurality of rebound seats 501, distributed at equal angles, are fixedly connected to the outer wall of the clamping sleeve 1. The rebound seats 501 are located on the side of the moisture supply retaining plate 401 away from the moisture supply rubber bag 402. Rebound rubber bands 502 are fixedly connected to the side of each of the plurality of rebound seats 501 that is close to the moisture supply retaining plate 401. The ends of the plurality of rebound rubber bands 502 that are away from the rebound seats 501 are fixedly connected to the surface of the moisture supply retaining plate 401.

[0046] As the hydration retaining plate 401 is pushed to slide toward the patient's lips, the multiple rebound rubber bands 502 are elastically stretched. After hydration to the patient's lips is complete, the hydration retaining plate 401 is released, and the rebound force of the multiple rebound rubber bands 502 drives the hydration retaining plate 401 and the hydration rubber bag 402 to slide along the outer wall of the clamping sleeve 1 and reset. The pressure of the hydration rubber bag 402 against the patient's lips is automatically released, eliminating the need for manual resetting and further improving the usability of this clamping holder.

[0047] In one embodiment of the present invention, the hydration rubber bag 402 is made of a highly elastic rubber material.

[0048] Operating principle: When wearing the device, the medical professional first opens the patient's mouth and pulls the arc-shaped connecting frame 209 to slide the two levers 208 along the second chute 103. The two levers 208 slide, moving the two link strips 207 along the first chute 102 and then the two racks 206. As the racks 206 move, they rotate the meshing arc-shaped gears 205, and then rotate the two support plates 202 along the contact position with the hinge rod 201. This causes the two symmetrically distributed support plates 202 and elastic tooth pads 203 to contract in the middle, making it easier to position the clamping holder in the patient's oral cavity. During this time, the torsional springs 204 both twist and deform to store force. Immediately after positioning the clamping holder in the patient's oral cavity, the cannula is inserted into the patient's oral cavity through the clamping sleeve 1 and the clamping sleeve 1 is secured with a bandage. Next, the tension on the arc-shaped connecting frame 209 is released, releasing the elastic force of the torsion spring 204, and the support plate 202 is driven to rotate outward to its original position along the contact position between the hinge rod 201 and the mounting notch 101. Moving the two support plates 202 outward moves the elastic tooth pads 203, positioning the elastic tooth pads 203 on both sides precisely between the patient's two sets of upper and lower masticatory teeth. When the medical professional releases the opening force on the patient's mouth and the patient's mandibular muscles contract naturally, the patient's upper and lower masticatory teeth come into contact with the elastic tooth pads 203 at the top and bottom of the support plate 202, and the elastic tooth pads 203 serve to support the patient's mouth. Compared to conventional clamping holders, this solves the problem of the patient's anterior teeth biting on the outer wall of the clamping holder for a long time, further avoiding the problem of the patient's anterior teeth loosening and deforming due to prolonged force exposure.

[0049] The torsion spring 204 rotates the support plate 202 to both sides and simultaneously rotates the cam 306 connected to the arc gear 205. This causes the cam 306 to push the guide wheel 305 to move to the middle of the clamping sleeve 1. Moving the guide wheel 305, along with the clamping ejector rod 302, moves the thrust seat 304 to the middle along the sliding connection position with the clamping sleeve 1, pushing the clamping block 301 to move further. In this way, moving the two symmetrically distributed clamping blocks 301 to the middle automatically completes the clamping of the cannula, significantly improving the usability of the clamping holder compared to conventional clamping holders.

[0050] If the patient's lips become dry during treatment, a certain amount of clean water is drawn using a syringe, the needle of the syringe is passed through the rubber stopper 407, and the clean water is injected into the hydration rubber bag 402. The clean water injected into the hydration rubber bag 402 is immediately absorbed by the water-absorbing sponge block 404, permeating the entire water-absorbing sponge block 404 and making it moist. Then, the syringe is removed, and the hydration retaining plate 401 is pushed toward the support component, while several rebound rubber bands 502 are elastically stretched. The hydration retaining plate 401 is moved until the hydration rubber bag 402 is in contact with the patient's lips. By moving the hydration rubber bag 402 together with the water-absorbing sponge block 404, the hydration rubber bag 402 is pushed and elastically contracted, thereby pushing the water-absorbing sponge block 404 inside the hydration rubber bag 402. As a result, the clean water absorbed into the water-absorbing sponge block 404 is pushed out through multiple moisture supply pores 403, supplying moisture to the patient's lips. Therefore, convenience and efficiency are greatly improved compared to moisture supply with cotton swabs. After moisture supply to the patient's lips is complete, when the moisture supply retaining plate 401 is released, the rebound force of multiple rebound rubber bands 502 drives the moisture supply retaining plate 401 and the moisture supply rubber bag 402 to slide along the outer wall of the clamping sleeve 1 and reset. This automatically releases the pressure of the moisture supply rubber bag 402 on the patient's lips.

[0051] In this specification, any reference to terms such as “an embodiment,” “example,” or “specific example” means that the description includes specific features, structures, materials, or characteristics described in relation to at least one embodiment or example of the present invention. In this specification, the general expressions of the above terms do not necessarily mean the same embodiment or example. Furthermore, any specific features, structures, materials, or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0052] The basic principles, main features, and advantages of the present invention have been described above. The present invention is not limited to the above embodiments, and the above embodiments and specification are merely illustrative of the principles of the present invention. Without departing from the spirit and scope of the invention, the present invention can also be modified and improved in various ways, and those skilled in the art will understand that any such modification and improvement falls within the scope of the invention for which protection is sought. [Explanation of symbols]

[0053] In the drawing, 1. Clamping sleeve 101, Mounting notch 102, First Shot 103, 2nd shot 201, Hinge rod 202, support plate 203. Elastic tooth pads 204, Torsion spring 205, Arc-shaped gear 206, rack 207, Linkstrip 208, Lever 209. Arc-shaped connecting frame 301, Clamping block 302, Clamping ejector rod 303, Reset Spring 304, Thrust 305, Guide Wheel 306, Cam 401, Hydration Retaining Plate 402, Hydration Rubber Bag 403, Moisture-retaining pores 404, Water-absorbing sponge block 405, circular groove 406, water injection pipe 407, rubber stopper 501, Rebound Seat 502, Rebound rubber band.

Claims

1. A clamping holder for cannulas, The clamping sleeve (1) includes a clamping sleeve (1) with mounting notches (101) on both sides of one end, the two mounting notches (101) exhibit a symmetrical distribution with respect to the center of the clamping sleeve (1), a support plate (202) is rotatably connected to each of the two mounting notches (101), and elastic tooth pads (203) are fixedly connected to the upper and lower ends of the support plate (202). A hinge rod (201) is pivotally connected to the mounting notch (101) along the vertical direction, and one end of the support plate (202) is fixedly connected to the side wall of the hinge rod (201). Torsion springs (204) are covered on both the upper and lower ends of the hinge rod (201) of the support plate (202), and the ends of the two torsion springs (204) closest to the support plate (202) are fixedly connected to the support plate (202), while the other ends are fixedly connected to the top wall and bottom wall of the mounting notch (101), respectively. Arc-shaped gears (205) are fixedly connected to the side walls of the two hinge rods (201), and racks (206) mesh with the outer circumference of the two arc-shaped gears (205), and the two racks (206) are both located between the arc-shaped gears (205) and the inner wall of the mounting notch (101), and first chutes (102) are opened inside the side walls on both sides of the clamping sleeve (1) along its length, both communicating with the mounting notch (101), and link strips (207) are slidably connected within the two first chutes (102), and the ends of the two link strips (207) are fixedly connected to the corresponding ends of the racks (206), The two support plates (202) exhibit a symmetrical distribution with respect to the center of the clamping sleeve (1), and the two support plates (202) are arranged in an arc shape. A cannula clamping holder characterized in that the elastic tooth pad (203) is made of a soft silicone material.

2. Inside the clamping sleeve (1) are provided two symmetrically distributed clamping blocks (301), and two clamping ejector rods (302) distributed vertically are fixedly connected to the separate sides of the two clamping blocks (301), and the two clamping ejector rods (302) slide through the clamping sleeve (1) and extend into the mounting notch (101), and the two clamping ejector rods (302) are connected to the clamping blocks ( A thrust seat (304) is fixedly connected to the end away from the clamping block (301), and a reset spring (303) is fixedly connected to the side of the thrust seat (304) closest to the clamping block (301). The reset spring (303) covers the outer circumference of the clamping ejector rod (302), and the end of the reset spring (303) away from the thrust seat (304) is fixedly connected to the side wall of the mounting notch (101). The cannula clamping holder according to claim 1, characterized in that guide rings (305) are rotatably connected to the upper and lower sides of the two thrust seats (304) on the same side, and cams (306) are fixedly connected to the upper and lower ends of the arc-shaped gear (205), and the two cams (306) correspond one-to-one to the positions of the two guide rings (305).

3. The cannula clamping holder according to claim 2, characterized in that the two clamping blocks (301) are arranged in an arc shape and exhibit a symmetrical distribution with respect to the center of the clamping sleeve (1).

4. A moisture supply retaining plate (401) is slidably connected to the outer circumference of the clamping sleeve (1), and a moisture supply rubber bag (402) is fixedly connected to the side of the moisture supply retaining plate (401) near the support plate (202), the moisture supply rubber bag (402) is located at the edge of the moisture supply retaining plate (401), and a plurality of moisture supply pores (403) are made on the side of the moisture supply rubber bag (402) near the support plate (202), all of which communicate with the inside of the moisture supply rubber bag (402), and the inside of the moisture supply rubber bag (402) is filled with a water-absorbing sponge block (404). The cannula clamping holder according to claim 1, characterized in that a circular groove (405) is opened through the upper part of the water supply retaining plate (401), a water supply pipe (406) is fixedly connected to the circular groove (405), a water supply hole is opened through the upper part of the side of the water supply rubber bag (402) closest to the water supply retaining plate (401), the water supply hole is provided coaxially with the circular groove (405), the inner diameter of the water supply hole is smaller than the inner diameter of the circular groove (405), the inner end of the water supply pipe (406) is fixedly connected to the water supply rubber bag (402) around the water supply hole, and a rubber stopper (407) is fitted inside the water supply pipe (406).

5. The cannula clamping holder according to claim 4, characterized in that the moisture supply holding plate (401) is provided in an arc shape.

6. The cannula clamping holder according to claim 4, characterized in that a plurality of rebound seats (501) distributed at equal angles are fixedly connected to the outer wall of the clamping sleeve (1), the rebound seats (501) are located on the side of the moisture supply retaining plate (401) away from the moisture supply rubber bag (402), a rebound rubber band (502) is fixedly connected to the side of each of the plurality of rebound seats (501) that is close to the moisture supply retaining plate (401), and the ends of each of the plurality of rebound rubber bands (502) that are far from the rebound seats (501) are fixedly connected to the surface of the moisture supply retaining plate (401).

7. The cannula clamping holder according to claim 4, characterized in that the aforementioned hydration rubber bag (402) is made of a highly elastic rubber material.

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