Cannula holder

Abstract

Provided is a cannula holder, which comprises: a clamping sleeve (1), wherein two sides of one end of the clamping sleeve (1) are each provided with a mounting groove (101), the two mounting grooves (101) each have a supporting plate (202) rotatably connected therein, and an upper end and a lower end of the supporting plate (202) each have an elastic tooth pad (203) fixedly connected therein. A hinge rod (201) is rotatably connected in the mounting groove (101) in a vertical direction, one end of the supporting plate (202) is fixedly connected to a side wall of the hinge rod (201), both parts of the hinge rod (201) above and below the supporting plate (202) are each sleeved with a torsional spring (204), ends of the two torsional springs (204) close to the supporting plate (202) are fixedly connected to the supporting plate (202), and the other ends thereof are fixedly connected to a top wall and a bottom wall of the mounting groove (101), respectively. Side walls of the two hinge rods (201) each have an arc-shaped gear (205) fixedly connected thereto, the periphery of each of the two arc-shaped gears (205) is engaged with a rack (206), and the two racks (206) are both located between the arc-shaped gear (205) and an inner wall of the mounting groove (101). Side walls on two sides of the clamping sleeve (1) each have a first sliding groove (102) in communication with the mounting groove (101) provided therein in a length direction thereof, the two first sliding grooves (102) each have a force linkage strip (207) slidably connected therein, and ends of the two force linkage strips (207) are fixedly connected to ends of the corresponding racks (206) thereof. The two supporting plates (202) are arranged in an arc shape, and the elastic dental pad (203) is made of a soft silica gel material. This design prevents the incisors of a patient against prolonged biting on an outer wall of the holder, thereby further avoiding loosening and deformation of the incisors of the patient caused by prolonged force application.

Description

A cannula holder Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a cannula clamp. Background Technology

[0002] Intubation means inserting a tube into the human body through openings or cavities to administer or aspirate gases or fluids. Common types of intubation include endotracheal intubation (inserting a tube through the pharynx and glottis into the trachea for ventilation) and gastric tube intubation (inserting a tube through the esophagus into the stomach to extract gastric juices or administer nutritional fluids). After intubation, a clamp is usually used to secure the tube to ensure stability.

[0003] Some existing intubation clamps lack 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 incisors are biting against the outer wall of the clamp for a long time. Because of the prolonged force on the incisors, the incisors are prone to loosening, which can cause discomfort to the patient.

[0004] Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide an intubation clamp that uses a torsion spring to elastically release and drive the support plate to rotate to its original position. The two support plates move outward, causing the elastic dental pads to move so that the elastic dental pads on both sides are positioned between the patient's upper and lower sets of chewing teeth. When the patient's jaw muscles contract naturally, the patient's upper and lower chewing teeth come into contact with the elastic dental pads at the top and bottom of the support plate. The elastic dental pads provide support for the patient's mouth. Compared with existing clamps, this invention solves the problem of the patient's front teeth biting the outer wall of the clamp for a long time, further preventing the patient's front teeth from loosening and deforming due to prolonged force.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] An intubation clamp includes:

[0008] The clamping sleeve has mounting slots on both sides of one end. The two mounting slots are symmetrically distributed about the center of the clamping sleeve, and a support plate is rotatably connected to each of the two mounting slots. Elastic tooth pads are fixedly connected to the upper and lower ends of the support plate.

[0009] A hinge rod is vertically rotatably connected inside the mounting slot. One end of the support plate is fixedly connected to the side wall of the hinge rod. Torsion springs are fitted on the hinge rods at the upper and lower ends of the support plate. One end of each torsion spring is fixedly connected to the support plate, and the other end is fixedly connected to the top and bottom walls of the mounting slot, respectively.

[0010] Both of the two hinge rods are fixedly connected to the side walls of each of the two hinge rods. Both of the two hinge rods are meshed with racks on their periphery. Both racks are located between the hinge rods and the inner wall of the mounting slot. The side walls on both sides of the clamping sleeve are provided with first sliding grooves that communicate with the mounting slots along their length. Both first sliding grooves are slidably connected with connecting strips. The ends of both connecting strips are fixedly connected to the ends of their corresponding racks.

[0011] As a preferred embodiment of the present invention, each of the two connecting bars is fixedly connected to a lever at the end away from the rack. The lever is perpendicular to the connecting bar. The side walls of the clamping sleeve are provided with second grooves that communicate with the interior of the first groove. The two levers are slidably connected in the corresponding second grooves, and the outer ends of the two levers extend to the outside of the second groove. The outer ends of the two levers are connected to an arc-shaped connecting frame, which is located on the top periphery of the clamping sleeve.

[0012] As a preferred embodiment of the present invention, the two support plates are symmetrically distributed about the center of the clamping sleeve, and the two support plates are arranged in an arc shape.

[0013] As a preferred embodiment of the present invention, the elastic dental pad is made of soft silicone material.

[0014] As a preferred embodiment of the present invention, the clamping sleeve is provided with two symmetrically distributed clamping blocks inside. Two clamping top rods distributed vertically are fixedly connected to the side of the two clamping blocks that are far apart from each other. The two clamping top rods slide through the clamping sleeve and extend into the mounting slot. A thrust seat is fixedly connected to the end of the two clamping top rods that is far away from the clamping blocks. A return spring is fixedly connected to the side of the thrust seat that is close to the clamping blocks. The return spring is sleeved around the clamping top rod. The end of the return spring that is far away from the thrust seat is fixedly connected to the side wall of the mounting slot.

[0015] On the same side, the two thrust seats are rotatably connected to guide wheels on their upper and lower sides that are close to each other. The upper and lower ends of the arc gear are fixedly connected to cams, and the positions of the two cams correspond one-to-one with the positions of the two guide wheels.

[0016] As a preferred embodiment of the present invention, the two clamping blocks are symmetrically distributed about the center of the clamping sleeve, and the two clamping blocks are arranged in an arc shape.

[0017] As a preferred embodiment of the present invention, a water replenishing pressure plate is slidably connected to the periphery of the clamping sleeve, and a water replenishing bladder is fixedly connected to one side of the water replenishing pressure plate near the support plate. The water replenishing bladder is located at the edge of the water replenishing pressure plate, and a plurality of water replenishing holes are opened on one side of the water replenishing bladder near the support plate. All of the plurality of water replenishing holes are connected to the interior of the water replenishing bladder, and the interior of the water replenishing bladder is filled with a water-absorbing sponge block.

[0018] A circular groove is formed through the upper part of the water replenishing pressure plate, and a water injection pipe is fixedly connected inside the circular groove. A water replenishing hole is formed through the upper part of the side of the water replenishing bladder near the water replenishing pressure plate, which is coaxial with the circular groove. The inner diameter of the water replenishing hole is smaller than the inner diameter of the circular groove. The inner end of the water injection pipe is fixedly connected to the water replenishing bladder around the water replenishing hole, and a rubber stopper is embedded inside the water injection pipe.

[0019] As a preferred embodiment of the present invention, the water replenishment pressure plate is arranged in an arc shape.

[0020] As a preferred embodiment of the present invention, a plurality of rebound seats are fixedly connected to the outer wall of the clamping sleeve at equal angles. The rebound seats are located on the side of the water replenishing pressure plate away from the water replenishing bladder. Each of the plurality of rebound seats is fixedly connected to a rebound elastic band on the side of the water replenishing pressure plate. The ends of the plurality of rebound elastic bands away from the rebound seats are fixedly connected to the surface of the water replenishing pressure plate.

[0021] As a preferred embodiment of the present invention, the hydrating bladder is made of highly elastic rubber material.

[0022] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows:

[0023] A fixed connection refers to a connection in which parts or components are fixed in place, with no relative movement between them. These connections are divided into two types: detachable and non-detachable.

[0024] (1) Detachable connections use screws, splines, wedges, etc. to fix parts together. This type of connection can be disassembled during maintenance without damaging the parts. However, the specifications of the connecting parts used must be correct (such as the length of bolts, keys, wedges) and properly tightened.

[0025] (2) Non-removable connections mainly refer to welding, riveting, and tenon joints. Since disassembly is required by forging, sawing, or oxy-acetylene cutting during repair or replacement, the parts generally cannot be reused. At the same time, attention should be paid to the process quality, technical inspection, and remedial measures (such as correction, polishing, etc.) when making connections.

[0026] A threaded connection is a detachable connection in which threaded parts (or the threaded portion of the connected parts) are joined together as one unit.

[0027] A sliding connection refers to two objects that are in contact but not fixed, and can slide relative to each other.

[0028] A rotating connection is a connection between parts that allows the parts to rotate relative to each other.

[0029] The beneficial effects of this invention are:

[0030] 1. In this invention, by pulling the arc-shaped connecting frame, two levers slide along the second slide groove. The sliding of the two levers causes two connecting strips to slide along the first slide groove, which in turn causes two racks to move. When the two racks move, they cause the arc-shaped gears meshing with them to rotate, which in turn causes the two support plates to rotate along the transition position between the hinge rods. During this process, the torsion springs undergo torsional deformation and store force, thereby retracting the two symmetrically distributed support plates and the elastic dental pads towards the center. This allows the clamp to be easily placed into the patient's mouth, improving the ease of installation of the clamp.

[0031] 2. In this invention, by removing the tension on the arc-shaped connecting frame, the torsion spring is elastically released, driving the support plate to rotate outward along the transition position between the hinge rod and the mounting slot back to its original position. The two support plates move outward, causing the elastic dental pads to move, so that the elastic dental pads on both sides are positioned between the patient's upper and lower sets of chewing teeth. When the medical staff removes the force on the patient's mouth, the patient's jaw muscles naturally contract, so that the patient's upper and lower chewing teeth are in contact with the elastic dental pads at the top and bottom of the support plate. The elastic dental pads provide support for the patient's mouth. Compared with existing clamps, this invention solves the problem of the patient's front teeth biting the outer wall of the clamp for a long time, further preventing the patient's front teeth from loosening and deforming due to prolonged force.

[0032] 3. In this invention, the support plate is driven to rotate to both sides by the torsion spring, which in turn drives the cam connected to the arc gear to rotate together. The cam pushes the guide wheel to move towards the middle of the clamping sleeve. The movement of the guide wheel drives the thrust seat together with the clamping top rod to move towards the middle along the sliding connection position with the clamping sleeve, further pushing the clamping block to move. After the two symmetrically distributed clamping blocks move towards the middle, they automatically complete the clamping function of the insertion tube. Compared with the existing clamps, the ease of use of the clamp is greatly improved.

[0033] 4. In this invention, by sliding the hydrating pressure plate towards the patient's lips, multiple elastic bands simultaneously stretch elastically. The movement of the hydrating pressure plate moves the hydrating bladder along with the absorbent sponge until the bladder contacts the patient's lips. The bladder is then compressed and collapses elastically, squeezing the absorbent sponge inside and forcing the purified water contained within through multiple hydrating pores to hydrate the patient's lips. Compared to cotton swabs, this method significantly improves convenience and efficiency. After hydrating the patient's lips, the hydrating pressure plate is released. The rebound force of the multiple elastic bands drives the hydrating pressure plate and bladder to slide back along the outer wall of the clamping sleeve, automatically relieving the pressure of the bladder on the patient's lips. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 is a schematic diagram of the structure of the present invention;

[0036] Figure 2 is a schematic diagram of the structure of the present invention;

[0037] Figure 3 is a schematic diagram of the structure of the present invention;

[0038] Figure 4 is an enlarged structural diagram of part A in Figure 3 of this invention;

[0039] Figure 5 is a schematic cross-sectional view of the lip moisturizing component in this invention;

[0040] Figure 6 is an enlarged structural schematic diagram of part B in Figure 5 of the present invention;

[0041] Figure 7 is a schematic cross-sectional view of the clamping sleeve in this invention;

[0042] Figure 8 is an enlarged structural diagram of part C in Figure 7 of this invention.

[0043] In the diagram: 1. Clamping sleeve; 101. Mounting slot; 102. First slide groove; 103. Second slide groove; 201. Hinge rod; 202. Support plate; 203. Elastic toothed pad; 204. Torsion spring; 205. Arc gear; 206. Rack; 207. Connecting bar; 208. Lever; 209. Arc connecting frame; 301. Clamping block; 302. Clamping top rod; 303. Return spring; 304. Thrust seat; 305. Guide wheel; 306. Cam; 401. Water replenishment pressure plate; 402. Water replenishment bladder; 403. Water replenishment fine hole; 404. Water-absorbing sponge block; 405. Circular groove; 406. Water injection pipe; 407. Rubber stopper; 501. Rebound seat; 502. Rebound elastic band. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0046] Some existing intubation clamps lack an ideal support structure for the patient's mouth during use. Due to the natural contraction of the patient's jaw muscles, the incisors are forced to bite against the clamp's outer wall for extended periods. This prolonged pressure on the incisors can easily lead to loosening and cause discomfort. Furthermore, some existing clamps lack the function of hydrating the patient's lips, requiring caregivers to use cotton swabs dipped in water to apply moisture, which is inconvenient.

[0047] To address the two issues mentioned above, the following solutions can be implemented.

[0048] As shown in Figures 1-8, this invention provides an embodiment of a cannula holder, comprising:

[0049] The clamping sleeve 1 has mounting slots 101 on both sides of one end. The two mounting slots 101 are symmetrically distributed about the center of the clamping sleeve 1, and a support plate 202 is rotatably connected in both mounting slots 101. An elastic toothed pad 203 is fixedly connected to the upper and lower ends of the support plate 202.

[0050] A hinge rod 201 is vertically rotatably connected inside the mounting slot 101. One end of the support plate 202 is fixedly connected to the side wall of the hinge rod 201. Torsion springs 204 are fitted on the hinge rods 201 at both the upper and lower ends of the support plate 202. One end of the two torsion springs 204 near the support plate 202 is fixedly connected to the support plate 202, and the other end is fixedly connected to the top wall and bottom wall of the mounting slot 101, respectively.

[0051] Arc gears 205 are fixedly connected to the side walls of the two hinge rods 201. Racks 206 mesh with the periphery of the two arc gears 205. The two racks 206 are located between the arc gears 205 and the inner wall of the mounting slot 101. The side walls on both sides of the clamping sleeve 1 are provided with first sliding grooves 102 that communicate with the mounting slot 101 along their length direction. The two first sliding grooves 102 are slidably connected with connecting strips 207. The ends of the two connecting strips 207 are fixedly connected to the ends of their corresponding racks 206.

[0052] When wearing the device, medical staff first open the patient's mouth and pull the two connecting bars 207 to slide along the first slide groove 102, further driving the two racks 206 to move. As the racks 206 move, they drive the meshing arc gear 205 to rotate, which in turn drives the two support plates 202 to rotate along the junction of the hinge rod 201 and the hinge rod 201. During this process, the torsion springs 204 undergo torsional deformation and store force, thereby retracting the two symmetrically distributed support plates 202 and the elastic dental pad 203 towards the center, facilitating the placement of the clamp into the patient's mouth and improving the ease of installation. Once the clamp is placed in the patient's mouth, the cannula is immediately inserted through the clamp sleeve 1 and into the patient's mouth. Then, the pulling force on the connecting bars 207 is released, causing the torsion springs to retract. Spring 204 is released elastically, driving support plate 202 to rotate outward along the transition position between hinge rod 201 and mounting slot 101 back to its original position. The two support plates 202 move outward, causing elastic dental pads 203 to move, so that the elastic dental pads 203 on both sides are just between the patient's upper and lower sets of chewing teeth. When the medical staff removes the force on the patient's mouth, the patient's jaw muscles naturally contract, so that the patient's upper and lower chewing teeth just contact the elastic dental pads 203 at the top and bottom of the support plate 202. The elastic dental pads 203 play a supporting role for the patient's mouth. Compared with the existing clamps, this solves the problem of the patient's front teeth biting the outer wall of the clamp for a long time, and further avoids the problem of the patient's front teeth loosening and deforming due to long-term force.

[0053] In one embodiment of the present invention, each of the two connecting bars 207 is fixedly connected to a lever 208 at the end away from the rack 206. The lever 208 is perpendicular to the connecting bars 207. The side walls of the clamping sleeve 1 are provided with second grooves 103 that communicate with the interior of the first groove 102. The two levers 208 are slidably connected in the corresponding second grooves 103, and the outer ends of the two levers 208 extend to the outside of the second grooves 103. The outer ends of the two levers 208 are connected to an arc-shaped connecting frame 209, which is located on the top periphery of the clamping sleeve 1.

[0054] Medical staff pull the arc-shaped connecting frame 209, causing two levers 208 to slide along the second slide groove 103. The sliding of the two levers 208 causes two connecting bars 207 to slide along the first slide groove 102.

[0055] In one embodiment of the present invention, the two support plates 202 are symmetrically distributed about the center of the clamping sleeve 1, and the two support plates 202 are arranged in an arc shape. This facilitates fitting with the tooth distribution.

[0056] In one embodiment of the present invention, the elastic dental pad 203 is made of soft silicone material.

[0057] In one embodiment of the present invention, the clamping sleeve 1 is provided with two symmetrically distributed clamping blocks 301 inside. Two clamping top rods 302 are fixedly connected to the side of the two clamping blocks 301 that are far apart from each other. The two clamping top rods 302 slide through the clamping sleeve 1 and extend into the mounting slot 101. The end of the two clamping top rods 302 that is far away from the clamping blocks 301 is fixedly connected to a thrust seat 304. The side of the thrust seat 304 that is close to the clamping blocks 301 is fixedly connected to a return spring 303. The return spring 303 is sleeved around the clamping top rods 302. The end of the return spring 303 that is far away from the thrust seat 304 is fixedly connected to the side wall of the mounting slot 101.

[0058] On the same side, the two thrust seats 304 are rotatably connected to guide wheels 305 on their upper and lower sides that are close to each other. The upper and lower ends of the arc gear 205 are fixedly connected to cams 306, and the positions of the two cams 306 correspond one-to-one with the positions of the two guide wheels 305.

[0059] When the torsion spring 204 drives the support plate 202 to rotate to both sides, it drives the cam 306 connected to the arc gear 205 to rotate together. The cam 306 pushes the guide wheel 305 to move towards the middle of the clamping sleeve 1. The movement of the guide wheel 305 drives the thrust seat 304 together with the clamping top rod 302 to move towards the middle along the sliding connection position with the clamping sleeve 1, further pushing the clamping block 301 to move. After the two symmetrically distributed clamping blocks 301 move towards the middle, they automatically complete the clamping function of the insertion tube. Compared with the existing clamps, the ease of use of the clamp is greatly improved.

[0060] In one embodiment of the present invention, the two clamping blocks 301 are symmetrically distributed about the center of the clamping sleeve 1, and the two clamping blocks 301 are arranged in an arc shape. This facilitates close clamping against the outer wall of the catheter.

[0061] In one embodiment of the present invention, a water replenishing pressure plate 401 is slidably connected to the periphery of the clamping sleeve 1. A water replenishing bladder 402 is fixedly connected to one side of the water replenishing pressure plate 401 near the support plate 202. The water replenishing bladder 402 is located at the edge of the water replenishing pressure plate 401. A plurality of water replenishing fine holes 403 are opened on one side of the water replenishing bladder 402 near the support plate 202. The plurality of water replenishing fine holes 403 are all connected to the interior of the water replenishing bladder 402. The interior of the water replenishing bladder 402 is filled with a water-absorbing sponge block 404.

[0062] A circular groove 405 is provided through the upper part of the water replenishment plate 401. A water injection pipe 406 is fixedly connected inside the circular groove 405. A water replenishment hole is provided through the upper part of the side surface of the water replenishment bladder 402 near the water replenishment plate 401, which is coaxial with the circular groove 405. The inner diameter of the water replenishment hole is smaller than the inner diameter of the circular groove 405. The inner end of the water injection pipe 406 is fixedly connected to the water replenishment bladder 402 around the water replenishment hole. A rubber stopper 407 is embedded inside the water injection pipe 406.

[0063] When a patient experiences dry lips during treatment, a syringe can be used to draw a certain amount of purified water. The syringe needle is then inserted through the rubber stopper 407 to inject the purified water into the hydrating bladder 402. The injected purified water is immediately absorbed by the absorbent sponge 404, soaking the entire sponge 404 and making it moist. The syringe is then removed, and the hydration pressure plate 401 is moved, causing the hydrating bladder 402 and the absorbent sponge 404 to move together until the hydrating bladder 402 comes into contact with the patient's lips. This causes the hydrating bladder 402 to be compressed and collapse, squeezing the absorbent sponge 404 inside and squeezing out the purified water contained within through multiple hydration pores 403 to hydrate the patient's lips. Compared to hydration with cotton swabs, this method greatly improves convenience and efficiency.

[0064] In one embodiment of the present invention, the hydration plate 401 is arc-shaped to facilitate a close fit to the lips.

[0065] In one embodiment of the present invention, a plurality of equally angled rebound seats 501 are fixedly connected to the outer wall of the clamping sleeve 1. The rebound seats 501 are located on the side of the water replenishment pressure plate 401 away from the water replenishment bladder 402. Each of the multiple rebound seats 501 is fixedly connected to a rebound elastic band 502 on the side of the multiple rebound seats 501 close to the water replenishment pressure plate 401. The ends of the multiple rebound elastic bands 502 away from the rebound seats 501 are fixedly connected to the surface of the water replenishment pressure plate 401.

[0066] Push the hydration pressure plate 401 towards the patient's lips. At the same time, multiple elastic bands 502 are elastically stretched. After the patient's lips are hydrated, release the hydration pressure plate 401. The elastic force of the multiple elastic bands 502 drives the hydration pressure plate 401 and the hydration bladder 402 to slide back along the outer wall of the clamping sleeve 1, automatically relieving the pressure of the hydration bladder 402 on the patient's lips. No manual reset is required, which further improves the ease of use of this clamp.

[0067] In one embodiment of the present invention, the hydrating bladder 402 is made of highly elastic rubber.

[0068] Working principle: When wearing the device, medical staff first open the patient's mouth and pull the arc-shaped connecting frame 209 to drive the two levers 208 to slide along the second slide groove 103. The sliding of the two levers 208 drives the two connecting bars 207 to slide along the first slide groove 102, further driving the two racks 206 to move. When the two racks 206 move, they drive the arc-shaped gears 205 that mesh with them to rotate, which in turn drives the two support plates 202 to rotate along the transition position of the hinge rod 201. This causes the two symmetrically distributed support plates 202 and the elastic dental pad 203 to retract towards the center, making it easy to place the clamp into the patient's mouth. During this process, the torsion springs 204 all undergo torsional deformation to store force. When the clamp is placed in the patient's mouth, the cannula is immediately inserted through the clamp sleeve 1 and into the patient's mouth. The clamp sleeve 1 is then secured with a bandage. After fixing, the tension on the arc-shaped connecting frame 209 is released, allowing the torsion spring 204 to be elastically released. This drives the support plate 202 to rotate outward along the transition position between the hinge rod 201 and the mounting slot 101 back to its original position. The two support plates 202 move outward, causing the elastic dental pads 203 to move, so that the elastic dental pads 203 on both sides are positioned between the patient's upper and lower sets of chewing teeth. When the medical staff releases the force on the patient's mouth, the patient's jaw muscles naturally contract, so that the patient's upper and lower chewing teeth are in contact with the elastic dental pads 203 at the top and bottom of the support plate 202. The elastic dental pads 203 provide support for the patient's mouth. Compared with existing clamps, this solves the problem of the patient's front teeth biting the outer wall of the clamp for a long time, further preventing the patient's front teeth from loosening and deforming due to prolonged force.

[0069] When the torsion spring 204 drives the support plate 202 to rotate to both sides, it drives the cam 306 connected to the arc gear 205 to rotate together. The cam 306 pushes the guide wheel 305 to move towards the middle of the clamping sleeve 1. The movement of the guide wheel 305 drives the thrust seat 304 together with the clamping top rod 302 to move towards the middle along the sliding connection position with the clamping sleeve 1, further pushing the clamping block 301 to move. After the two symmetrically distributed clamping blocks 301 move towards the middle, they automatically complete the clamping function of the insertion tube. Compared with the existing clamps, the ease of use of the clamp is greatly improved.

[0070] When a patient experiences dry lips during treatment, a syringe can be used to draw a certain amount of purified water. The syringe needle is then inserted through the rubber stopper 407 to inject the purified water into the hydrating bladder 402. The injected purified water is immediately absorbed by the absorbent sponge 404, soaking the entire sponge 404 and making it moist. The syringe is then removed, and the hydrating pressure plate 401 is pushed towards the supporting component. Simultaneously, multiple elastic bands 502 are stretched elastically, causing the hydrating pressure plate 401 to move, which in turn moves the hydrating bladder 402 along with the absorbent sponge 404. The pressure is applied until the hydrating bladder 402 comes into contact with the patient's lips, causing it to be squeezed and elastically collapse. This squeezes the absorbent sponge 404 inside the hydrating bladder 402, squeezing out the purified water contained inside the absorbent sponge 404 through multiple hydration pores 403 to hydrate the patient's lips. Compared to hydrating with cotton swabs, this method greatly improves convenience and efficiency. After hydrating the patient's lips, the pressure plate 401 is released, and the rebound force of multiple elastic bands 502 drives the pressure plate 401 and the hydrating bladder 402 to slide back along the outer wall of the clamping sleeve 1, automatically relieving the pressure of the hydrating bladder 402 on the patient's lips.

[0071] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0072] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A cannula holder, characterized in that, include: A clamping sleeve (1) is provided with mounting slots (101) on both sides of one end of the clamping sleeve (1). The two mounting slots (101) are symmetrically distributed about the center of the clamping sleeve (1). A support plate (202) is rotatably connected in both mounting slots (101). An elastic tooth pad (203) is fixedly connected to the upper and lower ends of the support plate (202). A hinge rod (201) is vertically rotatably connected inside the mounting slot (101). One end of the support plate (202) is fixedly connected to the side wall of the hinge rod (201). Torsion springs (204) are sleeved on the hinge rods (201) at the upper and lower ends of the support plate (202). One end of the two torsion springs (204) near the support plate (202) is fixedly connected to the support plate (202), and the other end is fixedly connected to the top wall and bottom wall of the mounting slot (101) respectively. Arc gears (205) are fixedly connected to the side walls of the two hinge rods (201). Racks (206) mesh with the periphery of the two arc gears (205). The two racks (206) are located between the arc gears (205) and the inner wall of the mounting slot (101). The side walls on both sides of the clamping sleeve (1) are provided with first sliding grooves (102) that communicate with the mounting slot (101) along their length direction. The two first sliding grooves (102) are slidably connected with connecting strips (207). The ends of the two connecting strips (207) are fixedly connected to the ends of their corresponding racks (206). The two support plates (202) are symmetrically distributed about the center of the clamping sleeve (1), and the two support plates (202) are arranged in an arc shape; The elastic dental pad (203) is made of soft silicone.

2. The cannula holder according to claim 1, characterized in that, The clamping sleeve (1) has two symmetrically distributed clamping blocks (301) inside. Two clamping top rods (302) are fixedly connected to the side of the two clamping blocks (301) that are far apart from each other. The two clamping top rods (302) slide through the clamping sleeve (1) and extend into the mounting slot (101). The end of the two clamping top rods (302) that is far away from the clamping block (301) is fixedly connected to a thrust seat (304). The side of the thrust seat (304) that is close to the clamping block (301) is fixedly connected to a return spring (303). The return spring (303) is sleeved around the clamping top rod (302). The end of the return spring (303) that is far away from the thrust seat (304) is fixedly connected to the side wall of the mounting slot (101). On the same side, the two thrust seats (304) are rotatably connected to guide wheels (305) on their adjacent sides. The upper and lower ends of the arc-shaped gear (205) are fixedly connected to cams (306). The two cams... The position of wheel (306) corresponds one-to-one with the position of the two guide wheels (305).

3. The cannula holder according to claim 2, characterized in that, The two clamping blocks (301) are symmetrically distributed about the center of the clamping sleeve (1), and the two clamping blocks (301) are arranged in an arc shape.

4. The cannula holder according to claim 1, characterized in that, The clamping sleeve (1) is slidably connected to a water replenishing pressure plate (401). A water replenishing bladder (402) is fixedly connected to one side of the water replenishing pressure plate (401) near the support plate (202). The water replenishing bladder (402) is located at the edge of the water replenishing pressure plate (401). A plurality of water replenishing holes (403) are opened on one side of the water replenishing bladder (402) near the support plate (202). The plurality of water replenishing holes (403) are all connected to the interior of the water replenishing bladder (402). The interior of the water replenishing bladder (402) is filled with a water-absorbing sponge block (404). The upper part of the water replenishment plate (401) is provided with a circular groove (405), and a water injection pipe (406) is fixedly connected in the circular groove (405). The upper part of the side surface of the water replenishment bladder (402) near the water replenishment plate (401) is provided with a water replenishment hole arranged coaxially with the circular groove (405). The inner diameter of the water replenishment hole is smaller than the inner diameter of the circular groove (405). The inner end of the water injection pipe (406) is fixedly connected to the water replenishment bladder (402) around the water replenishment hole. A rubber stopper (407) is embedded inside the water injection pipe (406).

5. The cannula holder according to claim 4, characterized in that, The water replenishment pressure plate (401) is arranged in an arc shape.

6. The cannula holder according to claim 4, characterized in that, Multiple rebound seats (501) are fixedly connected to the outer wall of the clamping sleeve (1) at equal angles. The rebound seats (501) are located on the side of the water replenishment plate (401) away from the water replenishment bladder (402). Each of the multiple rebound seats (501) is fixedly connected to a rebound elastic band (502) on the side of the multiple rebound seats (501) close to the water replenishment plate (401). The ends of the multiple rebound elastic bands (502) away from the rebound seats (501) are fixedly connected to the surface of the water replenishment plate (401).

7. The cannula holder according to claim 4, characterized in that, The hydrating bladder (402) is made of highly elastic rubber.

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