Ruminant rumen content collecting device

Abstract

The utility model discloses a ruminant rumen content collecting device. The ruminant rumen content collecting device comprises a guide pipe; a rumen content inlet cavity and a rumen content collecting cavity are formed in the sampling pipe, one end of the rumen content inlet cavity is communicated with one end of the guide pipe, the other end of the rumen content inlet cavity is communicated with one end of the rumen content collecting cavity, and a rumen content inlet communicated with the rumen content inlet cavity is formed in the outer pipe wall of the sampling pipe; the guide wire extends into the catheter, the rumen content enters the cavity, and a push plug used for pushing the rumen content in the rumen content entering cavity to the rumen content collecting cavity is fixed at the end of the guide wire. According to the device, only one-time intubation operation is needed, the rumen contents are pushed to the rumen content collecting cavity by repeatedly drawing and pushing the guide wire, the rumen contents do not need to be drawn out through a catheter through traditional negative pressure suction, and the problem that due to the fact that the rumen contents flow out through the catheter, the catheter is prone to being blocked, and oedema is caused by repeated intubation stimulation of the esophagus is solved.

Description

Technical Field

[0001] This utility model relates to the field of livestock products technology, and more specifically to a device for collecting rumen contents of ruminants. Background Technology

[0002] Rumen contents collected from ruminants are primarily used to detect indicators such as rumen microbiota structure and feed digestion and metabolism, making it a crucial step in animal feeding experiments. Existing methods for collecting rumen contents from live animals mainly include rumen fistula implantation, rumen puncture, and rumen cannulation. Rumen fistula implantation is generally used for long-term experiments lasting from one feeding cycle to several years. It requires surgical creation of a hole in the rumen sulcus to install the fistula device, typically with an incision of about 20 cm. This method demands high levels of postoperative care and is generally used in adult cattle. Rumen puncture can be performed at all growth stages. A long penetrating needle is used at the sulcus to vertically penetrate the epidermis, dermis, muscle layer, and rumen wall. After puncture, increased abdominal pressure during actions such as lying down or running can lead to increased rumen pressure, potentially causing rumen contents to leak through the puncture site and cause abdominal infection.

[0003] Therefore, rumen cannulation via the digestive tract is generally used in live feeding trials, as exemplified by the prior art publication CN216725347U, entitled "A Rumen Content Collection Device for Ruminants." Since cattle are ruminants, their rumen contains undigested chyme. Existing rumen cannulation devices frequently encounter chyme blockage during use, especially in young calves. Due to the narrower oral cavity and esophagus, thinner rumen cannulas are required, making chyme blockage more likely during rumen content extraction. This necessitates removing the rumen tube and re-inserting it, causing stress to the animal, leading to esophageal edema and impaired feed intake.

[0004] Therefore, how to provide a rumen contents collection device for ruminants that avoids chyme blockage of the catheter, which can lead to repeated intubation and esophageal edema, thus affecting feeding, is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a rumen contents collection device for ruminants that avoids chyme blockage of the catheter, which can lead to repeated intubation and esophageal edema, thereby affecting feeding.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A device for collecting rumen contents from ruminants, comprising:

[0008] catheter;

[0009] A sampling tube, one end of which is connected to one end of a catheter, has an internal space containing a rumen contents inlet and a rumen contents collection chamber. One end of the rumen contents inlet is connected to one end of the catheter, and the other end of the rumen contents inlet is connected to one end of the rumen contents collection chamber. A rumen contents inlet communicating with the rumen contents inlet is provided on the outer wall of the sampling tube.

[0010] A guidewire, one end of which extends into the catheter and the rumen contents enter the lumen, and a push plug is fixed on the end for pushing the rumen contents into the rumen contents collection chamber. The push plug slides in contact with the inner wall of the rumen contents entry chamber, and the other end of the guidewire is a pull-out end.

[0011] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a rumen contents collection device for ruminants. In use, the sampling tube is inserted into the rumen through the animal's mouth, and the other end of the tube is placed outside the animal's mouth. The rumen contents, which are a mixture of solid and liquid, such as crushed grains and hay residue, enter the rumen contents inlet through the rumen contents inlet. The user pushes the pull end of the guide wire and uses the push plug to push the rumen contents inlet into the rumen contents collection chamber. By repeatedly pulling and pushing the guide wire, a certain amount of rumen contents is stored and collected in the rumen contents collection chamber. The push plug is then pushed into the rumen contents collection chamber to seal one end of the rumen contents collection chamber. This avoids the risk of rumen contents in the rumen contents collection chamber falling out of the rumen contents inlet when the sampling tube is pulled out. Afterwards, the sampling tube is pulled out of the animal's mouth, and the rumen contents are taken out from the rumen contents inlet for corresponding testing experiments.

[0012] Therefore, this device uses a guidewire push-pull method to collect rumen contents (solid-liquid samples), avoiding the problems of surgery and gastrointestinal tube blockage. Furthermore, this device only requires one intubation, and the operation through the guidewire inside the tube effectively avoids the problem of repeated intubation irritating the esophagus and causing edema, which would affect the animal's feeding.

[0013] Furthermore, the other end of the sampling tube is covered with a sealing cap for closing and opening the other end of the rumen contents collection cavity.

[0014] The beneficial effects of adopting the above technical solution are as follows: after the sampling tube is pulled out of the animal's mouth, the sealing cap is removed, and then the guide wire is pushed. The guide wire moves to push the plug, which can push the rumen contents located in the rumen contents collection cavity out of the sampling tube. This facilitates the removal of rumen contents and avoids the problem of not being able to remove rumen contents from the rumen contents entry port.

[0015] Furthermore, the other end of the sampling tube is threadedly connected to the sealing cap.

[0016] The beneficial effect of adopting the above technical solution is that it facilitates the disassembly and assembly of the sealing cap.

[0017] Furthermore, one end of the conduit is threadedly connected to one end of the sampling tube.

[0018] The beneficial effects of adopting the above technical solution are: it is easy to assemble and disassemble the catheter and sampling tube. In this way, if the catheter or sampling tube is damaged, only the catheter or sampling tube needs to be replaced, without replacing the whole device, thus reducing replacement costs.

[0019] Furthermore, the rumen contents inlet is a plurality of elongated holes formed on the outer peripheral wall of the sampling tube.

[0020] The beneficial effects of adopting the above technical solution are: it facilitates the rapid entry of rumen contents into the rumen contents inlet through multiple elongated rumen contents inlets, thereby improving collection efficiency. Furthermore, the multiple elongated rumen contents inlets also reduce the risk of blockage by rumen contents.

[0021] Furthermore, the conduit is a steel wire silicone hose or a stainless steel snake tube.

[0022] The beneficial effects of adopting the above technical solution are: high strength, good toughness, and long service life.

[0023] Furthermore, the pusher is a rubber stopper. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 A three-dimensional structural diagram of a rumen contents collection device for ruminants provided by this utility model.

[0026] Figure 2 This is a schematic diagram of the internal cross-sectional structure of a rumen contents collection device for ruminants provided by this utility model.

[0027] Figure 3 An enlarged schematic diagram of the sampling tube of a rumen contents collection device for ruminants provided by this utility model. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] This utility model discloses a device for collecting rumen contents from ruminants, comprising:

[0030] Catheter 1;

[0031] Sampling tube 2 is connected at one end to one end of catheter 1. The internal space of sampling tube 2 has a rumen contents entry cavity 201 and a rumen contents collection cavity 202. One end of the rumen contents entry cavity 201 is connected to one end of catheter 1, and the other end of the rumen contents entry cavity 201 is connected to one end of the rumen contents collection cavity 202. A rumen contents entry port 203 is opened on the outer wall of sampling tube 2, which is connected to the rumen contents entry cavity 201. Of course, the rumen contents entry port 203 can be multiple elongated holes opened on the outer peripheral wall of sampling tube 2. For example, this device preferably uses two symmetrical rumen contents entry ports 203 on the left and right. This can avoid reducing the strength of the sampling tube due to opening too many rumen contents entry ports, and can also ensure that the rumen contents enter the rumen contents entry cavity quickly through the two rumen contents entry ports 203, thereby improving the rumen contents collection efficiency.

[0032] Guide wire 3, one end of which extends into catheter 1 and rumen contents entry lumen 201, and a push plug 4 is fixed on this end for pushing the rumen contents into rumen contents entry lumen 201 to rumen contents collection lumen 202. The push plug 4 slides in contact with the inner wall of rumen contents entry lumen 201. The other end of guide wire 3 is a pull-out end 31.

[0033] In this way, by repeatedly pulling and pushing the guide wire 3 through the pull end 31, and the guide wire 3 repeatedly pushing the push plug 4, the rumen contents that have entered the cavity 201 can be pushed into the rumen contents collection cavity 202, thereby realizing the collection operation of rumen contents.

[0034] In some embodiments, the other end of the sampling tube 2 is covered with a sealing cap 5 for closing and opening the other end of the rumen contents collection cavity 202. Thus, after the sampling tube is pulled out of the animal's mouth, the sealing cap is removed, and then the guidewire is pushed further. The guidewire actuates the push plug, which pushes the rumen contents out of the sampling tube, facilitating the removal of the rumen contents.

[0035] In the above embodiment, the other end of the sampling tube 2 is preferably threadedly connected to the sealing cap 5. One end of the conduit 1 is threadedly connected to one end of the sampling tube 2. The conduit 1 is a steel wire silicone hose or a stainless steel snake tube. The plug 4 is a rubber plug.

[0036] Based on the physiological characteristics of the digestive system of 3-6 month old calves, the device is designed with the following dimensions: the outer diameter of the catheter 1 is 15 mm, the outer diameter of the sampling tube 2 is 15 mm, the length of the catheter 1 is 1.7 m, the length of the sampling tube is 16 cm, the diameter of the sampling tube is 1.5 cm, the length of the rumen contents inlet 203 is 7.5 cm, the width is 1.3 cm, the length of the rumen contents collection cavity 202 is 7.5 cm, and the length of the push plug 4 is 0.6 cm and the width is 1.5 cm. Thus, the design of this device is more suitable for use in 3-6 month old calves.

[0037] In practical use, the sampling tube is inserted into the rumen through the animal's mouth, with the other end of the catheter placed outside the animal's mouth. Ruminated rumen contents, such as crushed grains and hay, are a mixture of solid and liquid components and enter the rumen contents inlet through the rumen contents inlet. The user pushes the pull end of the guidewire, using the push plug to push the rumen contents inlet into the rumen contents collection chamber. By repeatedly pulling and pushing the guidewire, a certain amount of rumen contents is collected in the rumen contents collection chamber. The push plug is then pushed into the rumen contents collection chamber to seal one end of the chamber. This prevents the rumen contents from falling out of the rumen contents inlet when the sampling tube is removed. Afterward, the sampling tube is removed from the animal's mouth, and the sealing cap is removed. The guidewire is then pushed again, and the guidewire moves the push plug to push the rumen contents out of the sampling tube. Finally, the collected rumen contents are subjected to appropriate testing experiments.

[0038] This device requires only one intubation operation. By repeatedly pulling and pushing the guide wire inside the tube, the rumen contents are pushed to the rumen contents collection cavity. There is no need to use the traditional negative pressure suction to extract the rumen contents through the catheter. This effectively avoids the problem that the rumen contents flowing out through the catheter can easily cause catheter blockage, requiring multiple intubations to stimulate the esophagus and cause edema, which affects the animal's feeding.

[0039] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for collecting rumen contents of ruminants, characterized in that, include: Catheter (1); A sampling tube (2) is provided, one end of which is connected to one end of the conduit (1). The internal space of the sampling tube (2) has a rumen contents entry cavity (201) and a rumen contents collection cavity (202). One end of the rumen contents entry cavity (201) is connected to one end of the conduit (1), and the other end of the rumen contents entry cavity (201) is connected to one end of the rumen contents collection cavity (202). A rumen contents entry port (203) connected to the rumen contents entry cavity (201) is provided on the outer wall of the sampling tube (2). The guidewire (3) has one end inserted into the catheter (1) and the rumen contents entry cavity (201), and a push plug (4) is fixed on the end for pushing the rumen contents in the rumen contents entry cavity (201) to the rumen contents collection cavity (202). The push plug (4) slides in contact with the inner wall of the rumen contents entry cavity (201). The other end of the guidewire (3) is a pull-out end (31).

2. The rumen contents collection device for ruminants according to claim 1, characterized in that, The other end of the sampling tube (2) is covered with a sealing cap (5) for closing and opening the other end of the rumen contents collection cavity (202).

3. The rumen contents collection device for ruminants according to claim 2, characterized in that, The other end of the sampling tube (2) is threadedly connected to the sealing cap (5).

4. The rumen contents collection device for ruminants according to claim 1, characterized in that, One end of the conduit (1) is threadedly connected to one end of the sampling tube (2).

5. The rumen contents collection device for ruminants according to claim 1, characterized in that, The rumen contents inlet (203) is a plurality of elongated holes formed on the outer peripheral wall of the sampling tube (2).

6. The rumen contents collection device for ruminants according to claim 1, characterized in that, The conduit (1) is a steel wire silicone hose or a stainless steel snake tube.

7. The rumen contents collection device for ruminants according to claim 1, characterized in that, The pusher (4) is a rubber stopper.

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