Animal postoperative intubation protection assembly
By designing a detachable connecting tenon and an extended access tube protection component, the problem of easy tube dislodgement or retraction into the body is solved, achieving stable fixation of the tube, reducing animal suffering, and improving experimental success rate and animal welfare.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI APPTEC SUZHOU
- Filing Date
- 2025-01-24
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional vest-style restraint devices have problems with postoperative intubation protection in animals, such as the intubation tube easily dislodging or retracting into the body, which increases animal suffering and leads to experimental failure. In addition, the device is too bulky and restricts animal movement.
A postoperative intubation protection component for animals was designed, comprising a detachably connected fixing tenon and an extension passage. The fixing tenon is connected to the intubation tube through a tube through-hole, and the extension passage includes a tenon, a spring tube, and a slotted round tube, thereby achieving stable fixation and protection of the intubation tube.
It effectively prevents animals from scratching and biting the intubation tube, reduces maintenance difficulty, improves the success rate of bile duct surgery, reduces animal pain, ensures the accuracy of experimental data, conforms to the 3R principle of experiments, and improves animal welfare.
Smart Images

Figure CN224166461U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of animal metabolic equipment technology, and in particular to a postoperative intubation protection component for animals. Background Technology
[0002] Animal bile duct cannulation is a commonly used experimental model in animal studies, frequently employed for research on drug metabolism, toxicity, and efficacy. This procedure, performed under general anesthesia in rodents such as rats and mice, involves inserting a specially designed flexible tube into the physiological lumen of the duodenum. The tube is fixed in place, traverses the subcutaneous tissue, and emerges through an opening in the dorsal skin. This allows for the injection of sodium taurocholate into the animal's duodenum or the collection of bile for analysis.
[0003] Post-operatively, animals often scratch their back wounds due to pain, itching, or lifestyle habits, leading to tube dislodgement or even biting, or the fixation sutures breaking and the tube retracting into the body. Traditional vest-style restraint devices only provide protection during experimental phases and are excessively bulky, restricting animal movement and greatly increasing their burden and suffering. Some animals even attempt to escape the vest, becoming stuck and suffocating. Regardless of the cause, these situations ultimately prevent the surgical animals from meeting the experimental requirements. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a postoperative intubation protection component for animals, which can protect the intubation after surgery, making it less likely for the intubation to fall out or retract into the body. Moreover, the component is lightweight and small in size, has little impact on animals, and improves animal welfare.
[0005] To solve the above-mentioned technical problems, the present invention provides an animal postoperative intubation protection component, which includes a detachably connected fixing tenon and an extension passage.
[0006] The fixing tenon is provided with a tube through hole, through which a tube is inserted and extended beyond the tube through hole after the animal surgery.
[0007] The fixing tenon is connected to the insertion position of the animal limb.
[0008] Preferably, the fixing tenon includes a tenon shoulder and a tenon tongue, and the insertion hole passes through the tenon shoulder and the tenon tongue;
[0009] The extension passage includes a tenon, a spring tube, and a slotted round tube, wherein the tenon and the slotted round tube are respectively assembled at both ends of the spring tube;
[0010] The tenon tongue and the tenon are detachably connected.
[0011] Preferably, the tenon shoulder is provided with a fixing hole for sewing the tenon shoulder to the insertion position of the animal limb; the inlet of the insertion hole is provided with an insertion passage.
[0012] Preferably, the number of fixing holes is four.
[0013] Preferably, the tenon shoulder and the tenon tongue are integrally formed.
[0014] Preferably, the tenon has a detachable hook-type cantilever buckle;
[0015] The tenon has a constraint hole and a protrusion, and the detachable hook-type cantilever buckle cooperates with the constraint hole and the protrusion to achieve a detachable connection.
[0016] Preferably, the distal end of the slotted circular tube can be detachably installed on the lid of a metabolic cage or a regular cage box.
[0017] Preferably, the distal end of the slotted circular tube is formed with a threaded structure, which can be detachably installed on the cage cover by means of a nut.
[0018] Preferably, the number of cannula through holes is two.
[0019] Preferably, a plug is provided at the distal end of the cannula.
[0020] This invention provides a postoperative intubation protection component for animals, effectively protecting the intubation tube from scratching and biting, reducing the difficulty of animal maintenance during intubation surgery, and thus greatly improving the success rate of bile duct surgery in rats. This aligns with the 3R principle of experiments and further ensures the accuracy of experimental data. Simultaneously, the device requires less restraint and carries a lighter load, effectively reducing animal suffering and improving animal welfare. Attached Figure Description
[0021] To more clearly illustrate the technical solution of this utility model, the drawings used in this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of an embodiment of the postoperative intubation protection component for animals according to this utility model;
[0023] Figure 2 This is another schematic diagram of an embodiment of the postoperative intubation protection component for animals according to this utility model;
[0024] Figure 3 This is a schematic diagram of the fixing tenon of an embodiment of the postoperative intubation protection component for animals according to this utility model;
[0025] Figure 4 This is a schematic diagram of the extended pathway of an embodiment of the postoperative intubation protection component for animals according to this utility model.
[0026] In the diagram, 1-fixed tenon; 11-through hole for insertion; 12-shoulder; 13-tongue; 14-fixed hole; 15-detachable hook-type cantilever buckle; 16-insertion passage; 2-extension passage; 21-tenon; 22-spring tube; 23-grooved round tube; 24-constraint hole; 25-protrusion; 3-plug; 4-insertion tube. Detailed Implementation
[0027] The technical solutions of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0028] refer to Figure 1-4 This invention illustrates a postoperative intubation protection component for animals, comprising a detachably connected fixing tenon and an extension passage.
[0029] The fixing tenon is provided with a tube through hole, through which a tube is inserted and extended beyond the tube through hole after the animal surgery.
[0030] The fixing tenon is connected to the insertion position of the animal limb.
[0031] In this embodiment of the invention, the fixing tenon is generally sewn to the insertion site of the animal limb. For example, in a rat bile duct cannulation surgery, the cannula extends from the back of the rat. Therefore, the fixing tenon is sewn to the skin on the back of the animal where the cannula extends out, and the cannula extending from the animal is inserted into the cannula's through hole and extends beyond the through hole. During the postoperative recovery stage, the fixing tenon and the extension passage are separated. Only the fixing tenon is sewn to the insertion site of the animal limb. After the cannula extends out of the through hole, it is sealed, for example, with a plug, to prevent the contents of the cannula from leaking out. During this stage, the cannula is protected by the fixing tenon. The intubation cannula is protected from animal contact, thus providing excellent protection. After the recovery phase, the experimental phase begins. The plug is removed, and the cannula is extended by grafting. The fixing tenon is connected to the extension pathway, and the grafted extension extends beyond the extension pathway, facilitating the injection of drugs or collection of samples by researchers according to the protocol. During this phase, the intubation cannula remains protected by the fixing tenon, and the grafted extension is protected by the extension pathway. Animals still have limited access to both the intubation cannula and the grafted extension; therefore, neither the intubation cannula nor the grafted extension should be damaged by animals. It should be noted that there are generally at least two intubation cannulas; therefore, at least two cannula penetration holes are required for intubation.
[0032] In one specific embodiment, the fixing tenon includes a tenon shoulder and a tenon tongue, and the insertion tube through hole passes through the tenon shoulder and the tenon tongue;
[0033] The extension passage includes a tenon, a spring tube, and a slotted round tube, wherein the tenon and the slotted round tube are respectively assembled at both ends of the spring tube;
[0034] The tenon tongue and the tenon are detachably connected.
[0035] Preferably, the tenon shoulder has a fixing hole for sewing the tenon shoulder to the insertion position of the animal limb; the inlet of the insertion hole is provided with an insertion passage. More preferably, the number of fixing holes is four, and the tenon shoulder and the tenon tongue are integrally formed.
[0036] In this specific embodiment, the fixing tenon includes, for example, an integrally formed tenon shoulder and tenon tongue. The tenon shoulder is, for example, button-shaped with a large area, facilitating sewing onto the animal limb. The tenon tongue is, for example, a flat structure, facilitating detachable connection with the tenon via a snap-fit. The integral forming can be achieved, for example, using a seamless injection molding process. The tenon tongue extends in the direction away from the animal limb. It should be noted that the inlet of the insertion tube through hole is generally located on the tenon shoulder (e.g., the side wall of the tenon shoulder), and the outlet of the insertion tube through hole is generally located on the tenon tongue (e.g., the top wall of the tenon tongue). Preferably, an insertion tube passage is provided at the inlet of the insertion tube through hole, allowing the insertion tube to enter the insertion tube passage first and then the insertion tube through hole. The insertion tube passage can protect the part of the insertion tube entering the fixing tenon. The number of insertion tube passages is the same as the number of insertion tube through holes, that is, an insertion tube passage is provided at the inlet of each insertion tube through hole. The insertion tube passage can also be integrally formed on the fixing tenon, but if this is not desired, it can also be assembled into the insertion tube through hole by, for example, a socket connection.
[0037] In this specific embodiment, the tenon is formed with a shape and structure that matches the tongue, facilitating the connection between the two. A detachable connection method is, for example, a snap-fit connection. Specifically, the tongue has a detachable hook-type cantilever snap, and the tenon has a constraint hole and a protrusion. The detachable hook-type cantilever snap achieves a detachable connection by engaging with the constraint hole and the protrusion. Furthermore, to ensure the tenon shoulder can be securely sewn to the animal limb, four fixing holes are preferably provided.
[0038] In one specific embodiment, the distal end of the slotted circular tube is detachably mounted to the lid of a metabolic cage or a regular cage. Understandably, the distal end of the slotted circular tube is the end opposite to the end connected to the spring tube, and this distal end is detachably mounted to the lid of the animal's metabolic cage or a regular cage. The detachable mounting method could be, for example, the distal end of the slotted circular tube being formed with a threaded structure, which allows for detachable mounting to the cage lid via a nut. However, if such a constraint is not desired, any existing structure capable of detachable connection is applicable to this invention.
[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.
Claims
1. A postoperative intubation protection component for animals, characterized in that, Includes a detachable connecting tenon and an extension passage; The fixing tenon is provided with a tube through hole, through which a tube is inserted and extended beyond the tube through hole after the animal surgery. The fixing tenon is connected to the insertion position of the animal limb.
2. The animal postoperative cannulation protection component as described in claim 1, characterized in that, The fixing tenon includes a tenon shoulder and a tenon tongue, and the insertion hole passes through the tenon shoulder and the tenon tongue; The extension passage includes a tenon, a spring tube, and a slotted round tube, wherein the tenon and the slotted round tube are respectively assembled at both ends of the spring tube; The tenon tongue and the tenon are detachably connected.
3. The animal postoperative cannulation protection component as described in claim 2, characterized in that, The tenon shoulder is provided with a fixing hole for sewing the tenon shoulder to the insertion position of the animal limb; The inlet of the cannula is provided with a cannula passage.
4. The animal postoperative cannulation protection component as described in claim 3, characterized in that, The number of fixing holes is four.
5. The animal postoperative cannulation protection component as described in claim 2, characterized in that, The tenon shoulder and the tenon tongue are integrally formed.
6. The animal postoperative cannulation protection component as described in claim 2, characterized in that, The tenon has a detachable hook-type cantilever buckle; The tenon has a constraint hole and a protrusion, and the detachable hook-type cantilever buckle cooperates with the constraint hole and the protrusion to achieve a detachable connection.
7. The animal postoperative cannulation protection component as described in claim 2, characterized in that, The distal end of the slotted circular tube can be detachably installed on the lid of a metabolic cage or a regular cage box.
8. The animal postoperative cannulation protection component as described in claim 7, characterized in that, The distal end of the slotted circular tube is formed into a threaded structure, which can be detachably installed on the cage cover by means of a nut.
9. The animal postoperative cannulation protection component as described in claim 1, characterized in that, The number of through holes for the insertion tube is two.
10. The animal postoperative cannulation protection component as described in claim 1, characterized in that, A plug is installed at the distal end of the cannula.