Temperature measuring probe and catheter using same

Abstract

The temperature measuring probe comprises a supporting catheter, the temperature measuring probe is installed in the head portion of the supporting catheter, and a temperature measuring wire of the temperature measuring probe penetrates out of the tail portion of the supporting catheter and is connected with a temperature measuring connector. A cavity allowing the supporting guide wire to be inserted therein is formed in the supporting catheter, the supporting guide wire is inserted into the cavity and abuts against the inner wall of the cavity, and a clamping part used for fixing the supporting guide wire is arranged in the cavity. The supporting guide pipe and the supporting guide wire jointly form a supporting guide mechanism of the temperature measuring probe. And a first Luer joint part which is in butt joint with other equipment is also mounted at the tail part of the supporting guide pipe. By arranging the supporting and guiding mechanism composed of the supporting catheter and the supporting guide wire, the hardness of the temperature measuring probe is increased, so that the temperature measuring probe meets the requirement of being inserted into the catheter, the temperature measuring probe can be detachably connected with the catheter in cooperation with the Luer taper of the temperature measuring interface of the catheter, the use cost is reduced, and meanwhile the temperature measuring probe is convenient to use. And the pain of the patient is relieved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a temperature measuring probe and a urinary catheter using the temperature measuring probe. Background Technology

[0002] In clinical medicine, when a patient's condition changes, it is often necessary to measure and monitor their temperature continuously. However, traditional temperature probes, due to insufficient rigidity of their sensing leads, cannot be directly inserted into ordinary urinary catheters. Therefore, existing temperature probes are often fixed inside the catheter to form a temperature-measuring catheter. This means that if a patient previously had a regular catheter inserted, the temperature measurement function cannot be used, requiring the placement of a new temperature-measuring catheter. This not only increases the workload of nurses but, more importantly, causes discomfort for the patient and increases the risk of urinary tract infections. Furthermore, temperature-measuring catheters are more expensive than regular catheters and are disposable, thus increasing the financial burden on patients.

[0003] In addition, some patients in clinical practice do not have their temperature-measuring catheters reinserted, but instead have their temperature measured via the nasal cavity or manually by a nurse. Nasal temperature measurement uses a relatively rigid material inserted into the patient's nasal cavity, increasing discomfort for conscious patients; while manual measurement by a nurse is not timely and cannot observe the patient's dynamic changes, especially when manpower is insufficient, nurses may not be able to measure in time, which can easily lead to hypothermia.

[0004] Therefore, there is an urgent need for a temperature measuring probe and a catheter that uses the temperature measuring probe. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a temperature measuring probe and a urinary catheter using the temperature measuring probe.

[0006] This utility model discloses a temperature measuring probe, including a temperature measuring probe, and further comprising:

[0007] A support conduit, wherein the temperature probe is installed inside the head of the support conduit, and the temperature probe’s temperature sensing wire extends out from the tail of the support conduit and is connected to a temperature sensing connector.

[0008] A support guidewire is provided inside the support conduit for inserting the support guidewire. The support guidewire is inserted into the cavity and abuts against the inner wall of the cavity. A clamping part for fixing the support guidewire is provided inside the cavity.

[0009] The supporting conduit and the supporting guide wire together constitute the supporting and guiding mechanism of the temperature measuring probe. The tail end of the supporting conduit is also equipped with a first Luer connector for docking with other devices.

[0010] As a further improvement of this utility model, the head of the supporting conduit is a blind end, and the head of the supporting conduit is arc-shaped.

[0011] The cavity is provided at the center of the support conduit along its axial direction, and the tail of the support conduit is provided with a through hole communicating with the cavity; the clamping part is provided at one end of the cavity near the temperature measuring probe; the support guide wire is inserted into the cavity from bottom to top and is clamped by the clamping part, and the end of the support guide wire placed outside the cavity is provided with a protrusion.

[0012] As a further improvement of this utility model, the clamping part includes a plurality of clamping blocks, which are evenly distributed around the inner wall of the cavity;

[0013] After the support guide wire is inserted into the cavity, the plurality of clamping blocks are evenly clamped on the outer circumference of the support guide wire.

[0014] As a further improvement of this utility model, the material of the supporting conduit is silicone or rubber; the material of the supporting guidewire is stainless steel 304.

[0015] As a further improvement of this utility model, the outer diameter of the supporting conduit is 1.8±1mm; the diameter of the supporting guidewire is 0.7±0.5mm.

[0016] As a further improvement of this utility model, it also includes a support catheter pusher, which includes a first guide portion and a second guide portion coaxially arranged, and a pusher portion disposed between the first guide portion and the second guide portion. The support catheter passes through the second guide portion and the pusher portion in sequence and then exits from the front end of the first guide portion. The pusher portion can push the support catheter to move towards the first guide portion so as to insert the support catheter into the urinary catheter.

[0017] Both the first guide portion and the second guide portion are provided with a cutting slit above them, which is used to facilitate the support conduit to be pushed upward from the first guide portion and the second guide portion.

[0018] This utility model discloses a urinary catheter, including the above-mentioned temperature measuring probe, and also includes a urinary catheter body;

[0019] The catheter body has a temperature measuring chamber and a urination chamber. The tail of the catheter body has a temperature measuring interface communicating with the temperature measuring chamber and a urination interface communicating with the urination chamber. The temperature measuring interface has a second Luer connector. The support catheter with the temperature measuring probe passes through the temperature measuring interface and is placed in the temperature measuring chamber. The first Luer connector at the tail of the support catheter is connected to the second Luer connector.

[0020] The temperature measuring chamber is divided into an inflation chamber. The front end of the catheter body is provided with a urination port communicating with the urination chamber and an air bladder communicating with the inflation chamber. The side wall of the temperature measuring interface is provided with an inflation interface communicating with the inflation chamber. A diaphragm is provided at the inflation interface, which can be opened or closed when an external instrument is inserted or removed.

[0021] As a further improvement of this utility model, the diaphragm includes a diaphragm body and a slit portion disposed on the diaphragm body;

[0022] The external instrument can be inserted into the air chamber through the cut. When the external instrument is pulled out of the membrane, the cut can be contracted and closed.

[0023] This utility model also discloses a urinary catheter, which includes a urinary catheter body;

[0024] The main body of the urinary catheter is provided with a temperature measuring chamber, a urination chamber and an inflation chamber; the front end of the main body of the urinary catheter is provided with a urination port communicating with the urination chamber and an air bladder communicating with the inflation chamber; the rear end of the main body of the urinary catheter is provided with a temperature measuring interface communicating with the temperature measuring chamber, a urination interface communicating with the urination chamber and an inflation interface communicating with the inflation chamber.

[0025] The temperature measuring interface is provided with a second Luer connector; the support tube with the temperature measuring probe passes through the temperature measuring interface and is placed in the temperature measuring cavity, and the first Luer connector at the tail of the support tube is connected to the second Luer connector.

[0026] The inflation port is equipped with a diaphragm that can be opened or closed when an external instrument is inserted or removed.

[0027] As a further improvement of this utility model, the diaphragm includes a diaphragm body and a slit portion disposed on the diaphragm body;

[0028] The external instrument can be inserted into the air chamber through the cut. When the external instrument is pulled out of the membrane, the cut can be contracted and closed.

[0029] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0030] This invention, by setting up a supporting catheter and a supporting guide wire, forms a supporting and guiding mechanism for the temperature probe. Compared with traditional temperature probes, it has higher rigidity, meeting the insertion requirements of urinary catheters. Compared with traditional urinary catheters with temperature probes directly worn by critically ill patients and high-risk groups, this invention can directly insert a regular urinary catheter, and only insert the temperature probe when temperature measurement is required. For patients, it is less expensive, thus effectively reducing the economic burden on patients.

[0031] The temperature probe in this invention does not come into contact with the body, so it can be reused, greatly reducing the economic burden on patients and also protecting the environment by reducing the generation of medical waste.

[0032] This invention features a urinary catheter that works with a temperature probe. Through a first and second Luer connector, the temperature probe and the urinary catheter are detachably combined. This improves the flexibility of the urinary catheter; after removing the temperature probe, it can be used as a regular catheter. When temperature measurement is needed, the temperature probe can be inserted through the temperature interface and connected and secured through the Luer connector. This reduces the workload of nurses, minimizes the discomfort of repeated catheter placement for patients, avoids urinary tract infections, and allows for real-time monitoring of body temperature, enabling dynamic observation of the patient.

[0033] This invention, by setting a diaphragm at the inflation interface, can open or close when an external instrument is inserted or removed. Compared with existing inflation interfaces, it reduces the cost of use while ensuring the airtightness of the inflation chamber. Attached Figure Description

[0034] Figure 1 This is a side sectional view of the temperature measuring probe disclosed in one embodiment of the present invention;

[0035] Figure 2 This is a bottom view of the structure of a temperature measuring probe disclosed in one embodiment of the present utility model;

[0036] Figure 3 This is a schematic diagram of the structure of the support tube pusher for the temperature measuring probe disclosed in one embodiment of the present utility model;

[0037] Figure 4 This is a schematic diagram of the assembly of the support tube pusher and the support tube of the temperature measuring probe disclosed in one embodiment of the present invention.

[0038] Figure 5 This is a schematic diagram of the structure of a urinary catheter disclosed in one embodiment of the present invention;

[0039] Figure 6 This is a schematic diagram of the structure of a urinary catheter disclosed in another embodiment of the present invention.

[0040] In the picture:

[0041] 1. Supporting catheter; 1-1. Cavity; 1-2. Clamping part; 2. Temperature probe; 3. Temperature measuring wire; 3-1. Temperature measuring connector; 4. Supporting guide wire; 4-1. Protrusion; 5. First Luer connector; 6. Supporting catheter pusher; 6-1. First guide part; 6-2. Second guide part; 6-3. Pushing part; 6-4. Holding part; 7. Urinary catheter; 7-1. Urinary catheter body; 7-2. Balloon; 7-3. Urinary inlet; 7-4. Temperature measuring interface; 7-5. Inflation interface; 7-6. Urinary outlet; 7-7. Inflation chamber; 7-8. Temperature measuring chamber; 7-9. Urinary outlet; 8. Second Luer connector; 9. Diaphragm; 9-1. Incision part. Detailed Implementation

[0042] 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, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0043] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] The present invention will now be described in further detail with reference to the accompanying drawings:

[0046] like Figure 1-2As shown, a temperature probe according to this utility model includes a support conduit 1, a temperature probe 2, a temperature measuring wire 3, and a support guide wire 4. The temperature probe 2 is installed inside the head of the support conduit 1. The temperature measuring wire 3 of the temperature probe 2 passes through the tail of the support conduit 1 and is connected to a temperature measuring connector 3-1, which is used to connect to an electrocardiogram monitor. The support conduit 1 has a cavity 1-1 for inserting the support guide wire 4. The support guide wire 4 is inserted into the cavity 1-1 and abuts against the inner wall of the cavity 1-1. The cavity 1-1 has a clamping part 1-2 for fixing the support guide wire 4. The support conduit 1 and the support guide wire 4 together constitute the support and guiding mechanism of the temperature probe 2. The tail of the support conduit 1 is also equipped with a first Luer connector 5 for docking with other devices.

[0047] In this embodiment, by setting a supporting catheter 1 and a supporting guide wire 4, a supporting and guiding mechanism for the temperature probe 2 is formed. Compared with the traditional temperature probe 2, it has higher rigidity, which meets the insertion requirements of the urinary catheter 7. Moreover, the temperature probe 2 in this invention does not come into contact with the body. Therefore, it can be reused, which greatly reduces the economic burden on patients and also protects the environment by reducing the generation of medical waste.

[0048] Specifically:

[0049] like Figure 1-2 As shown, in the above embodiment, preferably, the head of the supporting catheter 1 is a blind end and is arc-shaped. In actual processing, the head of the supporting catheter 1 can also be set as a 3 / 4 sphere to reduce friction when it enters the catheter 7 and ensure smooth passage. A cavity 1-1 is provided in the center of the supporting catheter 1 along its axial direction, and a through hole communicating with the cavity 1-1 is provided at the tail end of the supporting catheter 1. The supporting guide wire 4 is inserted into the cavity 1-1 from bottom to top and is clamped by the clamping part 1-2 in the cavity 1-1. In this embodiment, the uppermost end of the cavity 1-1 is placed below the temperature probe 2. In this embodiment, the end of the supporting guide wire 4 placed outside the cavity 1-1 has a protrusion 4-1.

[0050] In the above embodiment, preferably, the clamping part 1-2 is disposed at one end of the cavity 1-1 near the temperature probe 2; specifically, the clamping part 1-2 includes a plurality of clamping blocks 1-21, which are arranged around the inner wall of the cavity 1-1. When the support guide wire 4 is inserted into the cavity 1-1, the plurality of clamping blocks 1-21 are clamped on the outer circumference of the support guide wire 4. In this embodiment, the plurality of clamping blocks 1-21 are all made of flexible material, including rubber, silicone or plastic.

[0051] In the above embodiments, preferably, the material of the support conduit 1 is silicone or rubber, and the outer diameter of the support conduit 1 is 1.8±1mm.

[0052] In the above embodiments, preferably, the material of the support guide wire 4 is stainless steel 304, and the diameter of the support guide wire 4 is 0.7±0.5mm.

[0053] In the above embodiments, preferably, the temperature probe 2 and the temperature measuring wire 3 can be integrally formed with the support conduit 1, that is, during the manufacturing of the support conduit 1, the temperature probe 2 and the temperature measuring wire 3 are pre-embedded in the support conduit 1.

[0054] In the above embodiments, preferably, the inner diameter of the cavity 1-1 is adapted to the outer diameter of the support guide wire 4.

[0055] like Figure 3-4 As shown, in the above embodiment, preferably, it further includes a support catheter pusher 6, which includes a first guide portion 6-1, a second guide portion 6-2, a pushing portion 6-3, and a holding portion 6-4. The first guide portion 6-1 and the second guide portion 6-2 are coaxially arranged, the pushing portion 6-3 is disposed between the first guide portion 6-1 and the second guide portion 6-2, and the holding portion 6-4 is disposed below the pushing portion 6-3. The support catheter 1 passes through the second guide portion 6-2 and the pushing portion 6-3 sequentially and then exits from the first guide portion 6-1. In this embodiment, the pushing portion 6-3 can push the support catheter 1 towards the first guide portion 6-1.

[0056] In the above embodiment, preferably, the first guide part 6-1 and the second guide part 6-2 are both straight tube ends, the pushing part 6-3 is a connecting rod with an upward-opening "C"-shaped structure, and the holding part 6-4 is a "C"-shaped holding rod. The two ends of the connecting rod are respectively connected to the straight tube ends on both sides. The "C"-shaped holding rod is set below the connecting rod. When the supporting conduit 1 passes through the straight tube end and the notch above the connecting rod from back to front, it extends out from the straight tube section at its front end. When it is necessary to push the supporting conduit 1 forward, the operator can push the supporting guide wire 4 towards the first guide part 6-1 through the "C"-shaped notch above the connecting rod.

[0057] In the above embodiments, preferably, a cutting slit is provided above the straight pipe section of the first guide part 6-1 and the straight pipe section of the second guide part 6-2. The cutting slit is arranged along its axial direction, and the cutting slit can satisfy the requirement that the supporting conduit 1 be pushed upward from the straight pipe section of the first guide part 6-1 and the straight pipe section of the second guide part 6-2.

[0058] In the above embodiments, preferably, the temperature probe 2 is cylindrical and placed vertically inside the support conduit 1.

[0059] like Figure 5As shown, a urinary catheter 7 provided by this utility model includes the aforementioned temperature probe and a urinary catheter body 7-1; wherein, the urinary catheter body 7-1 is provided with a temperature measuring chamber 7-8 and a urination chamber 7-9, and the tail end of the urinary catheter body 7-1 is provided with a temperature measuring interface 7-4 communicating with the temperature measuring chamber 7-8 and a urination interface 7-6 communicating with the urination chamber 7-9, and a second Luer connector 8 is provided at the temperature measuring interface 7-4; a support catheter 1 with a temperature probe 2 passes through the temperature measuring interface 7-4 and is placed in the temperature measuring chamber 7-8, and the first Luer connector 5 at the tail end of the support catheter 1 is detachably connected to the second Luer connector 8;

[0060] The temperature measuring chamber 7-8 is divided into an inflation chamber 7-7. The front end of the catheter body 7-1 is provided with a urination port 7-3 that communicates with the urination chamber 7-9 and an air bag 7-2 that communicates with the inflation chamber 7-7. The side wall of the temperature measuring interface 7-4 is provided with an inflation interface 7-5 that communicates with the inflation chamber 7-7. A diaphragm 9 is provided at the inflation interface 7-5. The diaphragm 9 can be opened or closed when an external instrument is inserted or removed.

[0061] In the above embodiments, preferably, the diaphragm 9 includes a diaphragm body and a slit 9-1 disposed on the diaphragm body; external instruments can be inserted into the inflation chamber 7-7 through the slit 9-1, and the slit 9-1 can be contracted and closed after the external instruments are pulled out of the diaphragm body; this diaphragm 9 is an existing design and will not be described in detail here.

[0062] In the above embodiment, preferably, in order to ensure that the temperature probe 2 can be smoothly inserted into the temperature measuring chamber 7-8 of the catheter 7, the outer diameter of the support catheter 1 in this embodiment is smaller than the inner diameter of the temperature measuring chamber 7-8 and the inner diameter of the temperature measuring interface 7-4.

[0063] In the above embodiments, preferably, the first Luer connector 5 is a female Luer connector and the second Luer connector 8 is a male Luer connector.

[0064] In the above embodiments, preferably, the urinary catheter 7 in this embodiment can be based on the double-lumen urinary catheter, with the original inflation chamber 7-7 divided to form an inflation chamber 7-7 and a temperature measuring chamber 7-8, and the inflation interface communicating with the inflation chamber 7-7 is set on the side wall of the temperature measuring interface 7-4, while retaining the inflation interface 7-5 without affecting the insertion of the temperature measuring probe 2.

[0065] In the above embodiments, preferably, the outer diameter of the catheter body 7-1 should meet the minimum requirement of the average flow rate of the urination cavity 7-9, as shown in Table 1.

[0066] Table 1. Relationship between catheter outer diameter and average flow rate

[0067]

[0068] In the above embodiments, preferably, the effective length of the catheter body 7-1 is selected according to Table 2.

[0069] Table 2. Reference Table for Effective Catheter Length

[0070]

[0071]

[0072] In this embodiment, by setting a urinary catheter 7 that cooperates with the temperature probe 2, and through the first Luer connector 5 and the second Luer connector 8, the temperature probe 2 and the urinary catheter 7 are detachably combined. This improves the flexibility of the urinary catheter 7. After the temperature probe 2 is removed, the urinary catheter 7 can be used as a regular urinary catheter. When temperature measurement is required, the temperature probe 2 can be inserted through the temperature measuring interface 7-4 and connected and fixed through the first Luer connector 5 and the second Luer connector 8. This reduces the workload of nurses and also reduces the discomfort of repeated catheter placement for patients, avoids urinary tract infections, and enables real-time monitoring of body temperature, allowing for dynamic observation of patients. By setting a diaphragm 9 at the inflation interface 7-5, it can be opened or closed when external instruments are inserted or removed. Compared with the existing inflation interface 7-5, this reduces the cost of use while ensuring the airtightness of the inflation chamber 7-7.

[0073] In the above embodiments, preferably, after the support catheter 1 with temperature probe 2 is inserted into the temperature measuring chamber 7-8 of the catheter body 7-1 through the support catheter pusher 6, and after the first Luer connector 5 and the second Luer connector 8 are tightly connected, the support guide wire 4 can be removed from the cavity 1-1 of the support catheter 1 through the protrusion 4-1 at the outer end of the support guide wire 4.

[0074] like Figure 6 As shown, a urinary catheter 7 according to this utility model includes the aforementioned temperature probe and a urinary catheter body 7-1; the urinary catheter body 7-1 is provided with a temperature measuring chamber 7-8, a urination chamber 7-9, and an inflation chamber 7-7; the front end of the urinary catheter body 7-1 is provided with a urination port 7-3 communicating with the urination chamber 7-9 and an air bladder 7-2 communicating with the inflation chamber 7-7; the rear end of the urinary catheter body 7-1 is provided with a temperature measuring interface 7-4 communicating with the temperature measuring chamber 7-8 and an air bladder 7-2 communicating with the inflation chamber 7-7. The urination port 7-6 is connected to the urination cavity 7-9, and the inflation port 7-5 is connected to the inflation cavity 7-7; a second Luer connector 8 is provided at the temperature measuring port 7-4; a support tube 1 with a temperature measuring probe 2 passes through the temperature measuring port 7-4 and is placed in the temperature measuring cavity 7-8, and the first Luer connector 5 at the tail of the support tube 1 is connected to the second Luer connector 8; a diaphragm 9 is provided at the inflation port 7-5, which can be opened or closed when an external instrument is inserted or removed.

[0075] In the above embodiments, preferably, the structure of the diaphragm 9 is the same as that of the catheter 7 in the previous embodiment, and will not be described in detail here.

[0076] In the above embodiments, preferably, the first Luer connector 5 and the second Luer connector 8 are the same as the catheter 7 in the previous embodiment, and will not be described in detail here.

[0077] In the above embodiments, preferably, the selection of the outer diameter and effective tube length of the catheter body 7-1 is shown in Tables 1 and 2.

[0078] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this 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 temperature measuring probe, comprising a temperature measuring probe, characterized in that, Also includes: A support conduit, wherein the temperature probe is installed inside the head of the support conduit, and the temperature probe’s temperature sensing wire extends out from the tail of the support conduit and is connected to a temperature sensing connector. A support guidewire is provided inside the support conduit for inserting the support guidewire. The support guidewire is inserted into the cavity and abuts against the inner wall of the cavity. A clamping part for fixing the support guidewire is provided inside the cavity. The supporting conduit and the supporting guide wire together constitute the supporting and guiding mechanism of the temperature measuring probe. The tail end of the supporting conduit is also equipped with a first Luer connector for docking with other devices.

2. The temperature probe according to claim 1, characterized in that, The head of the support catheter is a blind end and the head of the support catheter is arc-shaped; The cavity is provided at the center of the support conduit along its axial direction, and the tail of the support conduit is provided with a through hole communicating with the cavity; the clamping part is provided at one end of the cavity near the temperature measuring probe; the support guide wire is inserted into the cavity from bottom to top and is clamped by the clamping part, and the end of the support guide wire placed outside the cavity is provided with a protrusion.

3. The temperature probe according to claim 1 or 2, characterized in that, The clamping part includes multiple clamping blocks, which are evenly distributed around the inner wall of the cavity; After the support guide wire is inserted into the cavity, the plurality of clamping blocks are evenly clamped on the outer circumference of the support guide wire.

4. The temperature probe according to claim 1, characterized in that, The supporting conduit is made of silicone or rubber; the supporting guidewire is made of stainless steel 304.

5. The temperature probe according to claim 1, characterized in that, The outer diameter of the support catheter is 1.8±1mm; the diameter of the support guidewire is 0.7±0.5mm.

6. The temperature probe according to claim 1, characterized in that, It also includes a support catheter pusher, which includes a first guide portion and a second guide portion coaxially arranged, and a pusher portion disposed between the first guide portion and the second guide portion. The support catheter passes through the second guide portion and the pusher portion in sequence and then exits from the front end of the first guide portion. The pusher portion can push the support catheter towards the first guide portion to insert the support catheter into the urinary catheter. Both the first guide portion and the second guide portion are provided with a cutting slit above them, which is used to facilitate the support conduit to be pushed upward from the first guide portion and the second guide portion.

7. A urinary catheter, comprising a temperature probe as described in any one of claims 1-6, characterized in that, It also includes the main body of the urinary catheter; The catheter body has a temperature measuring chamber and a urination chamber. The tail of the catheter body has a temperature measuring interface communicating with the temperature measuring chamber and a urination interface communicating with the urination chamber. The temperature measuring interface has a second Luer connector. The support catheter with the temperature measuring probe passes through the temperature measuring interface and is placed in the temperature measuring chamber. The first Luer connector at the tail of the support catheter is connected to the second Luer connector. The temperature measuring chamber is divided into an inflation chamber. The front end of the catheter body is provided with a urination port communicating with the urination chamber and an air bladder communicating with the inflation chamber. The side wall of the temperature measuring interface is provided with an inflation interface communicating with the inflation chamber. A diaphragm is provided at the inflation interface, which can be opened or closed when an external instrument is inserted or removed.

8. The urinary catheter according to claim 7, characterized in that, The diaphragm includes a diaphragm body and a slit provided on the diaphragm body; The external instrument can be inserted into the air chamber through the cut. When the external instrument is pulled out of the membrane, the cut can be contracted and closed.

9. A urinary catheter, comprising a temperature probe as described in any one of claims 1-6, characterized in that, It also includes the main body of the urinary catheter; The main body of the urinary catheter is provided with a temperature measuring chamber, a urination chamber and an inflation chamber; the front end of the main body of the urinary catheter is provided with a urination port communicating with the urination chamber and an air bladder communicating with the inflation chamber; the rear end of the main body of the urinary catheter is provided with a temperature measuring interface communicating with the temperature measuring chamber, a urination interface communicating with the urination chamber and an inflation interface communicating with the inflation chamber. The temperature measuring interface is provided with a second Luer connector; the support tube with the temperature measuring probe passes through the temperature measuring interface and is placed in the temperature measuring cavity, and the first Luer connector at the tail of the support tube is connected to the second Luer connector. The inflation port is equipped with a diaphragm that can be opened or closed when an external instrument is inserted or removed.

10. The urinary catheter according to claim 9, characterized in that, The diaphragm includes a diaphragm body and a slit provided on the diaphragm body; The external instrument can be inserted into the air chamber through the cut. When the external instrument is pulled out of the membrane, the cut can be contracted and closed.

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