Intubation tube holder
By using a limiting gear and a limiting claw, the design solves the problems of fatigue and instability caused by the reliance on finger strength in existing cannula holders, achieving precise locking and stable clamping of the cannula, thus improving ease of use and treatment safety.
Patent Information
- Application Number
- CN202520566015.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-03-28
AI Technical Summary
Existing intubation clamps rely on finger strength for control, which leads to hand fatigue and makes it difficult to accurately and stably fix the intubation tube. They are also prone to displacement or dislodgement during patient activities or nursing procedures, affecting treatment outcomes and posing potential risks.
A cannula holder was designed, which adopts a limiting mechanism of limiting gears and limiting claws to achieve precise locking of the clamping state through tooth engagement, and provides flexible force adjustment and stable clamping by utilizing elastic legs and hinge plate structure.
It achieves precise locking and stable clamping of the intubation tube, reduces hand fatigue, improves ease of use, avoids tube displacement and dislodgement, and ensures the continuity and safety of the treatment process.
Smart Images

Figure CN223615273U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of urology, and more specifically, to a cannula clamp. Background Technology
[0002] In the medical field, intubation is a common treatment method widely used in the treatment of various diseases. For example, endotracheal intubation can establish an emergency breathing channel for patients with respiratory dysfunction and ensure oxygen supply; gastric tube insertion is often used for patients who cannot eat normally by mouth to provide nutritional support or perform gastrointestinal decompression.
[0003] However, current intubation clamps are mostly scissor-like in design, relying primarily on finger strength to control opening and closing and clamping. This method not only requires continuous force from medical staff, easily causing hand fatigue, but also makes it difficult to accurately and stably secure the intubation tube. When patients are engaged in normal activities during treatment, or when medical staff are performing nursing procedures, the intubation tube is highly susceptible to displacement or even dislodgement. This not only seriously interferes with the treatment process and affects its effectiveness, but may also lead to adverse conditions such as choking and airway obstruction, causing additional pain and potential risks to the patient. How to invent an intubation clamp to improve these problems has become an urgent issue for those skilled in the art. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a cannula holder, which aims to improve the problem that existing holders rely on finger strength for control and are prone to fatigue during long-term use.
[0005] This utility model is implemented as follows: a cannula holder, comprising...
[0006] A clamping mechanism includes a gripping clamping assembly, which includes a lower clamping plate and an upper clamping plate. One end of the lower clamping plate and the upper clamping plate are hinged together, and the other end of the lower clamping plate and the upper clamping plate are respectively fixedly connected to a clamping plate. The clamping plate clamps the insertion tube. The inner walls of the lower clamping plate and the upper clamping plate are respectively elastically connected to a lower elastic leg and an upper elastic leg.
[0007] A limiting mechanism is provided, comprising a limiting locking assembly, which includes a limiting gear. The limiting gear is fixedly installed on the hinge portion of the lower clamping plate, and a limiting pawl is engaged with the outer side of the limiting gear. The limiting pawl is hingedly installed on the upper clamping plate, and the limiting pawl is engaged with the limiting gear.
[0008] In a preferred embodiment of this utility model, lower guide plates are fixedly connected to both sides of the tail of the lower clamping plate, and a fixing rod is fixedly connected to the middle of the lower guide plate. Upper hinge plates are fixedly connected to both sides of the tail of the upper clamping plate, and the upper hinge plates are rotatably sleeved onto the fixing rod.
[0009] In a preferred embodiment of this utility model, the upper hinge plate is located at both ends of the fixed rod and between the lower guide plate with a gap of 0.1-0.5mm.
[0010] In a preferred embodiment of this utility model, the outer side of the upper hinge plate is provided with a groove that cooperates with the lower guide plate, and the outer side of the upper hinge plate is slidably sleeved with the outer side of the lower guide plate.
[0011] In a preferred embodiment of this utility model, one end of the lower elastic leg and the upper elastic leg are elastically connected to the inner walls of the lower clamping plate and the upper clamping plate, respectively, and the other ends of the lower elastic leg and the upper elastic leg abut against each other.
[0012] In a preferred embodiment of this utility model, the ends of the lower elastic leg and the upper elastic leg that abut against each other are arc-shaped, with the arcs facing opposite directions.
[0013] In a preferred embodiment of this utility model, the clamping plate has an arc-shaped side located inside the lower and upper clamping plates, with the arc corresponding to the outer wall of the pipe. One end of the clamping plate is aligned with one side of the lower and upper clamping plates, and the other end of the clamping plate protrudes beyond the other side of the lower and upper clamping plates.
[0014] In a preferred embodiment of this utility model, the limiting gear is fixedly sleeved on the outside of the fixing rod, one end of the limiting claw is hinged between the upper hinge plates on both sides of the upper clamping plate, and the bottom of the limiting claw is provided with teeth that cooperate with the limiting gear.
[0015] In a preferred embodiment of this utility model, a spring sheet is provided on the side of the limiting claw away from the limiting gear, the end of the spring sheet is elastically mounted on the upper clamping plate, and the other end of the spring sheet abuts against the limiting claw.
[0016] In a preferred embodiment of this utility model, a transmission plate is fixedly connected to the top of the limiting claw, the transmission plate is inclined, and the transmission plate is inclined to the side away from the limiting gear.
[0017] The beneficial effects of this utility model are as follows: The insertion clamp obtained by the above design of this utility model has a limiting gear and a limiting claw in the limiting mechanism that cooperate with each other during use. Through tooth engagement, the clamping state can be accurately locked, and the spring can ensure that the limiting claw and the limiting gear are always in close contact, ensuring the limiting effect and avoiding unexpected changes in clamping force.
[0018] The upper hinge plate and fixing rod allow the upper clamping plate to rotate flexibly. Combined with the limiting mechanism, this makes it easy for medical staff to adjust the clamping force and state according to actual needs during operation, thus improving the ease of use. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of one side of the structure provided by an embodiment of the present invention;
[0021] Figure 2 This is a schematic diagram of another side of the structure provided for an embodiment of the present utility model;
[0022] Figure 3 A schematic diagram of the gripping and clamping assembly structure provided for an embodiment of this utility model;
[0023] Figure 4 A schematic diagram of the limiting and locking assembly provided for an embodiment of this utility model.
[0024] In the diagram: 100-Clamping mechanism; 110-Grip clamping assembly; 111-Lower clamping plate; 112-Upper clamping plate; 113-Lower elastic leg; 114-Upper elastic leg; 115-Upper hinge plate; 116-Lower guide plate; 117-Fixing rod; 118-Clamping plate; 200-Limiting mechanism; 210-Limiting locking assembly; 211-Limiting gear; 212-Limiting claw; 213-Transmission plate; 214-Spring. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0026] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a cannula holder, comprising...
[0027] The clamping mechanism 100 includes a gripping clamping assembly 110, which includes a lower clamping plate 111 and an upper clamping plate 112. One end of the lower clamping plate 111 and the upper clamping plate 112 are hinged together, and the other end of the lower clamping plate 111 and the upper clamping plate 112 are respectively fixedly connected to a clamping plate 118. The clamping plate 118 clamps the insertion tube. The inner walls of the lower clamping plate 111 and the upper clamping plate 112 are respectively elastically connected to a lower elastic leg 113 and an upper elastic leg 114. The limiting mechanism 200 includes a limiting lock. Component 210, the limiting and locking component 210 includes a limiting gear 211, which is fixedly installed on the hinge part of the lower clamping plate 111. The outer side of the limiting gear 211 is limited and engaged with a limiting claw 212. The limiting claw 212 is limited and hingedly installed on the upper clamping plate 112. The limiting claw 212 is limited and engaged with the limiting gear 211. The lower clamping plate 111 and the upper clamping plate 112 are hinged at one end, and the clamping plate 118 at the other end can firmly clamp the insertion tube. With the help of the limiting gear 211 and the limiting claw 212, the clamping state can be accurately locked.
[0028] Please see Figure 3 and Figure 4 The lower clamping plate 111 has lower guide plates 116 fixedly connected to both sides of its tail end, and a fixing rod 117 fixedly connected to the middle of the lower guide plate 116. The upper clamping plate 112 has upper hinge plates 115 fixedly connected to both sides of its tail end, and the upper hinge plates 115 are rotatably sleeved onto the fixing rod 117. The upper hinge plates 115 are located at both ends of the fixing rod 117 and have a gap of 0.1-0.5mm between them and the lower guide plates 116. The gap can be designed as needed to avoid friction.
[0029] The outer side of the upper hinge plate 115 has a groove that mates with the lower guide plate 116. The outer side of the upper hinge plate 115 and the outer side of the lower guide plate 116 are slidably sleeved together. The upper hinge plate 115 and the lower guide plate 116 can be fitted together with a gap, which makes the fit more stable. One end of the lower elastic leg 113 and the upper elastic leg 114 are elastically connected to the inner wall of the lower clamping plate 111 and the upper clamping plate 112, respectively. The other ends of the lower elastic leg 113 and the upper elastic leg 114 abut against each other. The abutting ends of the lower elastic leg 113 and the upper elastic leg 114 are arc-shaped, with the arcs facing opposite directions. The lower elastic leg 113 and the upper elastic leg 114 are used to generate opposing thrusts, which facilitates the opening of the lower clamping plate 111 and the upper clamping plate 112.
[0030] The clamping plate 118 has an arc-shaped side inside the lower clamping plate 111 and the upper clamping plate 112, which corresponds to the outer wall of the pipe. One end of the clamping plate 118 is aligned with one side of the lower clamping plate 111 and the upper clamping plate 112, and the other end of the clamping plate 118 protrudes from the other side of the lower clamping plate 111 and the upper clamping plate 112, increasing the contact area with the pipe and improving the stability of clamping.
[0031] The limiting gear 211 is fixedly sleeved on the outside of the fixing rod 117. One end of the limiting claw 212 is hinged between the upper hinge plates 115 on both sides of the upper clamping plate 112. The bottom of the limiting claw 212 is provided with teeth that mate with the limiting gear 211. A spring piece 214 is provided on the side of the limiting claw 212 away from the limiting gear 211. The end of the spring piece 214 is elastically mounted on the upper clamping plate 112, and the other end of the spring piece 214 abuts against the limiting claw 212. The limiting claw 212 is inclined to facilitate meshing with the limiting gear 211, and the teeth of the limiting gear 211 are inclined in a right-angled triangle.
[0032] A transmission plate 213 is fixedly connected to the top of the limiting claw 212. The transmission plate 213 is inclined and tilted away from the limiting gear 211. By pulling the transmission plate 213, the limiting claw 212 is disengaged from the limiting gear 211. The more gears that mesh with the limiting claw 212 on the limiting gear 211, the better, the more locking angles, and the better the clamping effect.
[0033] Working principle: When the intubation cannula needs to be secured using the cannula clamp, medical staff hold the lower clamp 111 and the upper clamp 112 and place the cannula between the two clamping plates 118. Then, they firmly grip the lower clamp 111 and the upper clamp 112. At this time, the lower elastic leg 113 and the upper elastic leg 114 are compressed and elastically deformed. The clamping force is adjusted according to the thickness of the cannula to ensure stable clamping.
[0034] During the gripping process, the lower clamping plate 111 rotates around the fixed rod 117, driving the limiting gear 211 to rotate. When the appropriate clamping force is reached, the teeth at the bottom of the limiting claw 212 engage with the limiting gear 211 under the action of the spring piece 214, thereby restricting the relative rotation of the lower clamping plate 111 and the upper clamping plate 112 and locking the clamping state.
[0035] If it is necessary to adjust the clamping force or loosen the clamp, medical staff can push the transmission plate 213 upward to make the limiting claw 212 overcome the elastic force of the spring piece 214 and separate from the limiting gear 211. At this time, the lower elastic leg 113 and the upper elastic leg 114 generate opposite pushing forces on the lower clamping plate 111 and the upper clamping plate 112 to open them, making it convenient to re-clamp.
[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A cannula holder, characterized in that, include A clamping mechanism includes a gripping clamping assembly, which includes a lower clamping plate and an upper clamping plate. One end of the lower clamping plate and the upper clamping plate are hinged together, and the other end of the lower clamping plate and the upper clamping plate are respectively fixedly connected to a clamping plate. The clamping plate clamps the insertion tube. The inner walls of the lower clamping plate and the upper clamping plate are respectively elastically connected to a lower elastic leg and an upper elastic leg. A limiting mechanism is provided, comprising a limiting locking assembly, which includes a limiting gear. The limiting gear is fixedly installed on the hinge portion of the lower clamping plate, and a limiting pawl is engaged with the outer side of the limiting gear. The limiting pawl is hingedly installed on the upper clamping plate, and the limiting pawl is engaged with the limiting gear.
2. The cannula holder as described in claim 1, characterized in that: Lower guide plates are fixedly connected to both sides of the tail of the lower clamping plate, and a fixing rod is fixedly connected to the middle of the lower guide plate. Upper hinge plates are fixedly connected to both sides of the tail of the upper clamping plate, and the upper hinge plates are rotatably sleeved onto the fixing rod.
3. The cannula holder as described in claim 2, characterized in that: The upper hinge plate is located at both ends of the fixed rod and is separated from the lower guide plate by a gap of 0.1-0.5mm.
4. The cannula holder as described in claim 2, characterized in that: The outer side of the upper hinge plate is provided with a groove that cooperates with the lower guide plate, and the outer side of the upper hinge plate is slidably sleeved with the outer side of the lower guide plate.
5. The cannula holder as described in claim 2, characterized in that: One end of the lower elastic leg and the upper elastic leg are elastically connected to the inner walls of the lower clamping plate and the upper clamping plate, respectively, and the other ends of the lower elastic leg and the upper elastic leg abut against each other.
6. The cannula holder as described in claim 5, characterized in that: The ends of the lower elastic leg and the upper elastic leg that abut against each other are arc-shaped, with the arcs facing opposite directions.
7. The cannula holder as described in claim 5, characterized in that: The clamping plate has an arc-shaped side located inside the lower and upper clamping plates, which corresponds to the outer wall of the pipe. One end of the clamping plate is aligned with one side of the lower and upper clamping plates, and the other end of the clamping plate protrudes from the other side of the lower and upper clamping plates.
8. The cannula holder as described in claim 7, characterized in that: The limiting gear is fixedly sleeved on the outside of the fixing rod, one end of the limiting claw is hinged between the upper hinge plates on both sides of the upper clamping plate, and the bottom of the limiting claw is provided with teeth that cooperate with the limiting gear.
9. The cannula holder as described in claim 8, characterized in that: A spring sheet is provided on the side of the limiting claw away from the limiting gear. The end of the spring sheet is elastically mounted on the upper clamping plate, and the other end of the spring sheet abuts against the limiting claw.
10. The cannula holder as described in claim 8, characterized in that: A transmission plate is fixedly connected to the top of the limiting claw. The transmission plate is inclined and tilted to the side away from the limiting gear.