Medical catheter fixator

By designing limiting blocks and clamping blocks to fix the catheter, and combining the structure of insertion blocks and moving blocks, the problems of catheter position changes and bandage cleaning were solved, achieving stable catheter fixation and bandage cleaning, reducing the risk of infection, and promoting patient recovery.

CN223861154UActive Publication Date: 2026-02-03THE 970TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
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Patent Information

Application Number
CN202520560613.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-02-03
Estimated Expiration
2035-03-28

AI Technical Summary

Technical Problem

Existing catheter fixation methods are prone to catheter position changes during patient movement and turning, and the bandages are difficult to clean quickly, increasing the risk of infection.

Method used

A catheter fixator was designed, which includes components such as a limiting block, a spring, a pull rod, and a clamping block. The limiting block and the clamping block work together to ensure that the catheter is fixed in the correct position. At the same time, the insertion block, the moving block and the locking block are designed to enable the quick cleaning of the strap.

Benefits of technology

It effectively fixes the catheter position, reduces the risk of catheter displacement, keeps the bandage clean, reduces the chance of infection, and promotes patient recovery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of medical instruments, and discloses a medical catheter fixator which comprises a body, a first cavity is formed in the body, the inner side wall of the first cavity is connected with a limiting block in a sliding mode, a first spring is connected between the limiting block and the inner side wall of a second cavity, and a second spring is connected between the limiting block and the inner side wall of the second cavity. One side of the limiting block is fixedly connected with a pull rod, and the other side of the limiting block is fixedly connected with a connecting rod. According to the medical catheter fixator, through arrangement of a limiting block, a first spring, a pull rod, a connecting rod and a clamping block, when the medical catheter fixator is used, the pull rod is pulled firstly to drive the limiting block to move, meanwhile, the first spring is extruded, the clamping block moves under the combined action of the limiting block and the connecting rod, then a catheter is put in, and the clamping block moves under the action of the first spring; the catheter can be stabilized at the required position, it is ensured that the tip end of the catheter is located at the correct treatment part all the time, and the practicability of the device is greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a medical catheter fixator. Background Technology

[0002] In gastrointestinal surgery, patients often require the placement of various catheters post-operatively, such as gastric tubes, urinary catheters, and abdominal drainage tubes. These catheters play a crucial role in postoperative monitoring, drainage of fluid accumulation, and maintaining gastrointestinal decompression. However, in actual postoperative care, catheter fixation becomes a challenging issue. Traditional fixation methods have several drawbacks. For example, when using adhesive tape, postoperative sweating and increased sebum secretion can cause the tape to easily come off, leading to catheter displacement or even expulsion. Furthermore, patients need to perform activities such as turning over, sitting up, and getting out of bed post-operatively. Rehabilitation activities such as movement can easily lead to catheter twisting, compression, or traction. Once the catheter shifts, twists, is compressed, or falls off, it not only affects the treatment effect but may also cause a series of serious complications, such as anastomotic leakage, abdominal infection, and urinary tract infection, prolonging the patient's hospitalization time and increasing the patient's economic burden and psychological stress. Therefore, developing a safe, reliable, and convenient medical catheter fixator is of great practical significance for postoperative care in gastrointestinal surgery. It can effectively solve the shortcomings of traditional fixation methods, improve the quality of care, and promote patient recovery.

[0003] However, existing medical catheter fixators have the following disadvantages:

[0004] (1) During the patient’s treatment, the position of the catheter may change due to the patient’s movement, turning over, or activity.

[0005] (2) Commonly used bandages absorb sweat, oil and other secretions when in use. It is usually difficult to remove the bandages quickly for cleaning, which causes these substances to breed a large number of bacteria and increases the risk of local skin infection for patients.

[0006] Therefore, this utility model provides a medical catheter fixator. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] The technical problem solved by the utility model is to provide a medical catheter fixator that is highly practical, easy to operate, and has a simple structure. This solves the problems mentioned in the background art, such as the movement, turning over, and activities of the body that may cause changes in the position of the catheter and the difficulty in quickly removing the strap for cleaning.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model provides the following technical solution: a medical catheter fixator, comprising a body, wherein a first cavity is formed inside the body, a limiting block is slidably connected to the inner wall of the first cavity, a first spring is connected between the limiting block and the inner wall of the second cavity, a pull rod is fixedly connected to one side of the limiting block, a connecting rod is fixedly connected to the other side of the limiting block, a clamping block is fixedly connected to one end of the connecting rod, a slot is formed at the exit of the body, an insertion block is slidably connected to the inner wall of the slot, a slot is formed to one side of the insertion block, a sliding groove is formed to the inner wall of the slot, a moving block is slidably connected to the inner wall of the sliding groove, a second spring is connected to the opposite sides of the two moving blocks, a rectangular rod is fixedly connected to one side of the moving block, one end of the rectangular rod movably penetrates the surface of the body, and a locking block is fixedly connected to one side of the moving block, the locking block engaging inside the slot.

[0011] Optionally, a fixing component is fixedly connected to one side of the insert block. The number of fixing components is one, and the fixing component facilitates quick adjustment of the strap tightness.

[0012] Optionally, one end of the rectangular rod is fixedly connected to a push block, and the number of push blocks is four, which facilitates the movement of the rectangular rod by pressing the push blocks.

[0013] Optionally, a protective pad is installed on one side of the main body. The protective pad is rectangular in shape and is designed to improve the comfort of the patient when wearing it.

[0014] Optionally, a handle is fixedly connected to one end of the pull rod. The handle is circular and facilitates pulling the pull rod.

[0015] Optionally, the surface of the clamping block is equipped with an anti-slip pad, which is made of rubber material, to prevent the guide tube from slipping during clamping.

[0016] (III) Beneficial Effects

[0017] This utility model provides a medical catheter fixator, which has the following beneficial effects:

[0018] 1. This medical catheter fixator, through the arrangement of a limiting block, a first spring, a pull rod, a connecting rod, and a clamping block, allows for easy use. First, pulling the pull rod moves the limiting block while simultaneously squeezing the first spring. Under the combined action of the limiting block and the connecting rod, the clamping block moves. Then, the catheter is inserted, and the clamping block fixes the catheter under the action of the first spring, stabilizing the catheter in the desired position and ensuring that its tip is always at the correct treatment site, greatly improving the practicality of the device.

[0019] 2. This medical catheter fixator, through the arrangement of an insertion block, a moving block, a second spring, a rectangular rod, and a locking block, is used by first pressing the rectangular rod to move the moving block, while simultaneously squeezing the second spring. Under the combined action of the rectangular rod and the moving block, the locking block moves until it is outside the locking slot. Then, the insertion block is pulled out, allowing the bandage to be cleaned, effectively removing contaminants, keeping the bandage clean, reducing the chance of infection, and aiding in the patient's recovery. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the handle structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the clamping block structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the movable block structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0025] Figure 6 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0026] In the diagram: 1. Main body; 2. Limiting block; 3. First spring; 4. Pull rod; 5. Connecting rod; 6. Clamping block; 7. Inserting block; 8. Fixing component; 801. Strap; 802. Male snap; 803. Female snap; 804. Female Velcro; 805. Male Velcro; 9. Moving block; 10. Second spring; 11. Rectangular rod; 12. Locking block; 13. Pressing block; 14. Protective pad; 15. Handle; 16. Anti-slip pad. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] Please see Figures 1 to 6This utility model provides a technical solution: a medical catheter fixator, including a body 1. The body 1 has a first cavity inside. A limiting block 2 is slidably connected to the inner wall of the first cavity. A first spring 3 is connected between the limiting block 2 and the inner wall of the second cavity. A pull rod 4 is fixedly connected to one side of the limiting block 2, and a connecting rod 5 is fixedly connected to the other side of the limiting block 2. A clamping block 6 is fixedly connected to one end of the connecting rod 5. Through the arrangement of the limiting block 2, the first spring 3, the pull rod 4, the connecting rod 5, and the clamping block 6, in use, firstly, pulling the pull rod 4 moves the limiting block 2, simultaneously squeezing the first spring 3. Under the combined action of the limiting block 2 and the connecting rod 5, the clamping block 6 moves. Then, the catheter is inserted, and under the action of the first spring 3, the clamping block 6 fixes the catheter, stabilizing it in the desired position and ensuring that its tip is always at the correct treatment site, greatly improving the practicality of the device. The device features a slot with a sliding block 7 connected to its inner wall. One side of the sliding block 7 has a slot, and the inner wall of the slot has a sliding groove. A moving block 9 is slidably connected to the inner wall of the sliding groove. Two moving blocks 9 are connected to a second spring 10 on opposite sides. A rectangular rod 11 is fixedly connected to one side of each moving block 9, with one end of the rectangular rod 11 extending through the surface of the main body 1. A locking block 12 is fixedly connected to one side of each moving block 9 and engages inside the slot. Through the arrangement of the sliding block 7, moving block 9, second spring 10, rectangular rod 11, and locking block 12, during use, pressing the rectangular rod 11 moves the moving block 9 while simultaneously squeezing the second spring 10. Under the combined action of the rectangular rod 11 and moving block 9, the locking block 12 moves until it reaches outside the slot. Then, the sliding block 7 can be removed to clean the bandage, effectively removing contaminants, keeping the bandage clean, reducing the chance of infection, and aiding in patient recovery.

[0029] A fixing component 8 is fixedly connected to one side of the insert 7. The fixing component 8 facilitates quick adjustment of the tightness of the strap. There is one fixing component 8.

[0030] One end of the rectangular rod 11 is fixedly connected to a push block 13, which facilitates the movement of the rectangular rod 11 by pressing the push block 13. There are four push blocks 13 in total.

[0031] A pad 14 is installed on one side of the main body 1. The pad 14 is rectangular in shape to improve the comfort of the patient.

[0032] One end of the lever 4 is fixedly connected to a handle 15, which facilitates pulling the lever 4. The handle 15 is circular in shape.

[0033] The surface of the clamping block 6 is equipped with an anti-slip pad 16 to prevent the guide tube from slipping during clamping. The anti-slip pad 16 is made of rubber.

[0034] In this invention, the working steps of the device are as follows:

[0035] First step: First, pull the lever 4 to move the limiting block 2, and at the same time squeeze the first spring 3. Under the combined action of the limiting block 2 and the connecting rod 5, the clamping block 6 moves. Then, insert the catheter. Under the action of the first spring 3, the clamping block 6 fixes the catheter, which can stabilize the catheter in the required position and ensure that its tip is always in the correct treatment site, greatly improving the practicality of the device.

[0036] The second step: Press the rectangular rod 11 to move the moving block 9, and at the same time squeeze the second spring 10. Under the combined action of the rectangular rod 11 and the moving block 9, the locking block 12 moves until it moves outside the slot. Then, pull out the insert block 7 to clean the bandage, effectively remove these contaminants, keep the bandage clean, reduce the chance of infection, and help the patient's recovery.

[0037] Example 1

[0038] Please refer to Figure 5 The fixing component 8 includes a strap 801, a male snap 802 and a female snap 803. The strap 801 is fixedly connected to one side of the insert block 7. A connecting ring is in contact with the surface of the strap 801. The male snap 802 and the female snap 803 are fixedly connected to the surface of the strap 801 respectively. The snaps make it easy for medical staff to quickly adjust the tightness of the strap 801.

[0039] Example 2

[0040] Please refer to Figure 6 The fixing component 8 includes a strap 801, a male Velcro 805, and a female Velcro 804. The strap 801 is fixedly connected to one side of the insert block 7. A connecting ring is in contact with the surface of the strap 801. The male Velcro 805 and the female Velcro 804 are fixedly connected to the surface of the strap 801 respectively. The Velcro allows medical staff to quickly adjust the tightness of the strap 801.

[0041] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0042] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A medical catheter fixator, comprising a body (1), characterized in that: The body (1) has a first cavity inside. A limiting block (2) is slidably connected to the inner wall of the first cavity. A first spring (3) is connected between the limiting block (2) and the inner wall of the second cavity. A pull rod (4) is fixedly connected to one side of the limiting block (2), and a connecting rod (5) is fixedly connected to the other side of the limiting block (2). A clamping block (6) is fixedly connected to one end of the connecting rod (5). The body (1) has a slot for lifting. An insert block is slidably connected to the inner wall of the slot. (7) A slot is provided on one side of the insert (7), a sliding groove is provided on the inner side wall of the slot, a moving block (9) is slidably connected to the inner side wall of the sliding groove, a second spring (10) is connected to the opposite side of the two moving blocks (9), a rectangular rod (11) is fixedly connected to one side of the moving block (9), one end of the rectangular rod (11) moves through the surface of the body (1), a locking block (12) is fixedly connected to one side of the moving block (9), and the locking block (12) is locked inside the slot.

2. The medical catheter fixator according to claim 1, characterized in that: One fixing component (8) is fixedly connected to one side of the insert (7).

3. A medical catheter fixator according to claim 1, characterized in that: One end of the rectangular rod (11) is fixedly connected to a push block (13), and there are four push blocks (13).

4. A medical catheter fixator according to claim 1, characterized in that: A protective pad (14) is installed on one side of the main body (1), and the protective pad (14) is rectangular.

5. A medical catheter fixator according to claim 1, characterized in that: One end of the pull rod (4) is fixedly connected to a handle (15), which is circular in shape.

6. A medical catheter fixator according to claim 1, characterized in that: The surface of the clamping block (6) is fitted with an anti-slip pad (16), which is made of rubber.