Integrated central venous catheter
The integrated design of the central venous catheter simplifies the operation process, reduces the risk of infection and vascular damage, improves puncture efficiency in emergency situations, solves the problems of cumbersome procedures and guidewire damage in existing technologies, and achieves higher operation safety and success rate.
Patent Information
- Application Number
- CN202422850304.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Existing central venous catheter placement techniques are cumbersome, increasing operation time and infection risk. Furthermore, the guidewire may damage blood vessels, and operational errors and complications are more likely to occur, especially in emergency situations.
An integrated central venous catheter was designed, which simplifies the operation by integrating the puncture needle and the catheter body. The catheter is made of PUR material and softened to reduce vascular damage. The combination of guidewire handle and injection mechanism improves operation efficiency and safety.
It simplifies the procedure, improves puncture efficiency in emergency situations, reduces the risk of infection and vascular damage, decreases the occurrence of complications, and increases the success rate of rescue.
Smart Images
Figure CN223874240U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to central venous catheterization technical field, concretely relates to an integrated central venous catheter. BACKGROUND
[0002] Central venous catheterization technology provides a stable deep venous access for critical patients for drug infusion, fluid management, blood monitoring and hemodialysis. Since the 1950s, the placement of central venous catheters requires the use of guide wires to guide the catheter into the blood vessel. Although this technology improves the safety and success rate of the operation, it also brings about corresponding complications such as guide wire breakage, retention in the body, and blood vessel damage.
[0003] The existing central venous catheterization technology usually uses the guide wire guide method (Seldinger technique), which includes the following steps: first, venipuncture is performed with a puncture needle, and after confirming that the needle tip has entered the blood vessel, a flexible guide wire is inserted into the blood vessel along the puncture needle, then the puncture needle is removed and the central venous catheter is inserted into the blood vessel guided by the guide wire, and finally, position confirmation is performed by imaging (such as X-ray or ultrasound) to ensure that the catheter tip is located at the intended central venous position.
[0004] The existing guide wire guide method has certain inconveniences:
[0005] (1) The steps are relatively complex, and this complexity may cause the operator to forget some steps in high-pressure or emergency situations, such as removing the guide wire.(2) Since each step involves multiple instrument changes, the operation time is prolonged, and the time of exposure to sterile operation is increased, thereby increasing the risk of infection.(3) The guide wire has a certain sharpness, which may cause damage to the blood vessel wall during the puncture process, especially in the case of a relatively fragile blood vessel, this damage may cause bleeding, hematoma formation, and may also cause thrombosis. CONTENT OF THE UTILITY MODEL
[0006] The utility model aims at: for solving the existing guide wire guide method has certain inconveniences: (1) The steps are relatively complex, and this complexity may cause the operator to forget some steps in high-pressure or emergency situations, such as removing the guide wire.(2) Since each step involves multiple instrument changes, the operation time is prolonged, and the time of exposure to sterile operation is increased, thereby increasing the risk of infection.(3) The guide wire has a certain sharpness, which may cause damage to the blood vessel wall during the puncture process, especially in the case of a relatively fragile blood vessel, this damage may cause bleeding, hematoma formation, and may also cause thrombosis.
[0007] The utility model discloses a technical scheme in specific implementation to achieve the above-mentioned purpose:
[0008] An integrated central venous catheter, comprising a catheter main body, a catheter tip is arranged at the front end of the catheter main body, and a guide wire cavity, a main cavity and a plurality of side cavities are arranged in the catheter main body, the front end of the guide wire cavity is sealed, and a guide wire is arranged in the guide wire cavity, a main hole communicating with the main cavity is arranged at the front end of the catheter tip, and a needle hole is arranged at the lower side of the outer wall of the catheter main body at the rear position, a puncture needle is arranged in the main cavity, and the puncture needle is arranged to pass through the main hole from the rear needle hole to the front end, a plurality of side holes are arranged on the side wall of the catheter main body near the front side, and the plurality of side holes correspond to the plurality of side cavities respectively, a connecting seat is arranged at the rear side of the catheter main body, and a plurality of injection mechanisms are arranged at the rear side of the connecting seat corresponding to the main cavity and the side cavities.
[0009] Further, a communication hole is arranged at the rear end of the connecting seat corresponding to the guide wire cavity, and a guide wire handle is fixedly connected to the rear end of the guide wire.
[0010] Further, the injection mechanism comprises an infusion capillary tube and an open injection tail end, the infusion capillary tube corresponds to the main cavity and the plurality of side cavities, and the open injection tail end is fixedly connected to the end of the infusion capillary tube.
[0011] Further, the rear end of the puncture needle is fixedly connected with a puncture handle.
[0012] Further, the catheter main body is made of PUR material, and the front end of the catheter tip is subjected to softening treatment.
[0013] Further, one end of the outer wall of the catheter main body close to the connecting seat is fixedly connected with a fixator, and the fixator is fixed on the skin of the patient through medical adhesive tape at both ends.
[0014] The beneficial effects of the utility model are as follows:
[0015] The utility model discloses an integrated setting of puncture needle and catheter main body, simplifies central venous puncture operation steps, improves puncture efficiency. Especially in the case of emergency treatment of patients, it is helpful to speed up the operation speed and reduce human operation errors, thereby improving the success rate of rescue, shortening the operation time, correspondingly reducing the sterile operation exposure time, reducing the related infection risk, avoiding the puncture complications related to the guide wire, such as guide wire breakage, indwelling in the body or vascular injury, etc. can effectively reduce unnecessary damage to patients, reduce the incidence of complications, and reduce potential medical disputes. DRAWINGS
[0016] Figure 1 It is the perspective view of the utility model;
[0017] Figure 2 It is the utility model Figure 1 A magnified view of the A place in the utility model;
[0018] Figure 3 is the main body section view of the catheter.
[0019] Reference signs: 1, catheter main body; 2, catheter tip; 3, guide wire cavity; 4, puncture needle; 5, puncture handle; 6, main cavity; 7, main hole; 8, side cavity; 9, side hole; 10, needle insertion hole; 11, connecting seat; 12, guide wire; 13, guide wire handle; 14, infusion capillary; 15, open type injection tail end; 16, fixator. DETAILED DESCRIPTION
[0020] To make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be described clearly and completely below in combination with the drawings in the utility model embodiment.
[0021] Please refer to Figure 1 - Figure 3 The utility model provides a kind of integrated central venous catheter, including catheter main body 1, the front end of catheter main body 1 is provided with catheter tip 2, and the inside of catheter main body 1 is provided with guide wire cavity 3, main cavity 6 and multiple side cavities 8, the front end of guide wire cavity 3 is sealed, and guide wire 12 is inserted in guide wire cavity 3, the front end of catheter tip 2 is provided with the main hole 7 being communicated with main cavity 6, and the lower side of the outer wall of catheter main body 1 is provided with needle insertion hole 10 at rear position, main cavity 6 is inserted with puncture needle 4, and puncture needle 4 is in and out from rear needle insertion hole 10, and the front end of puncture needle 4 passes through main hole 7 and goes out, the side wall of catheter main body 1 is provided with multiple side holes 9 close to front side, multiple side holes 9 are correspondingly communicated with multiple side cavities 8, and the rear side of catheter main body 1 is provided with connecting seat 11, and connecting seat 11 is provided with multiple injection mechanisms at rear side corresponding to main cavity 6 and side cavity 8.
[0022] In the embodiment, preferably, the connecting seat 11 is provided with a communication hole corresponding to the rear end of the guide wire cavity 3, and the rear end of the guide wire 12 is fixedly connected with a guide wire handle 13; the guide wire handle 13 facilitates the holding and operation of the guide wire 12.
[0023] In the embodiment, preferably, the injection mechanism includes an infusion capillary 14 and an open type injection tail end 15, the infusion capillary 14 corresponds to the communication between the main cavity 6 and the multiple side cavities 8, and the open type injection tail end 15 is fixedly connected to the end of the infusion capillary 14; the open type injection tail end 15 at the rear side can be inserted into a syringe and an infusion needle, facilitating the input of the liquid medicine, and the corresponding side cavities 8 are introduced into the corresponding side cavities 8 through the infusion capillary 14, and then sent into the intravenous blood vessels through the corresponding side holes 9.
[0024] In the embodiment, preferably, the rear end of the puncture needle 4 is fixedly connected with a puncture handle 5; the puncture handle 5 facilitates the puncture operation of the puncture needle 4.
[0025] In the embodiment, preferably, the catheter body 1 is made of PUR material, and the front end of the catheter tip 2 is subjected to softening treatment; the PUR material has good elasticity and softness, and can be automatically softened at body temperature to minimize the damage to the blood vessel wall, and the catheter tip 2 subjected to softening treatment can maximize the prevention of damage to the blood vessel during intubation.
[0026] In the embodiment, preferably, the outer wall of the catheter body 1 is fixedly connected with a fixator 16 at one end close to the connecting base 11, and the two ends of the fixator 16 are fixedly attached to the skin of the patient by medical adhesive tape; the fixator 16 is arranged to facilitate the fixation of the catheter body 1 after intubation.
[0027] The working principle and use process of the utility model are as follows: when the device is used, the puncture needle 4 is inserted into the main cavity 6 through the needle insertion hole 10, and the front end penetrates the main hole 7, so that the tip of the puncture needle 4 performs puncture operation forwardly; during intubation, the puncture needle 4 is first inserted into the blood vessel, and then the catheter body 1 with the built-in guide wire 12 is pushed into the blood vessel along the puncture needle 4; the operation force is transmitted through the guide wire 12 to help feel the direction and state of the lumen; under the assistance of X-ray, the catheter body 1 is sent to the specified depth, and then the puncture needle 4 and the guide wire 12 are pulled out, thereby completing the placement of the catheter body 1; through the integrated arrangement of the puncture needle 4 and the catheter body 1, the central venous puncture operation steps are simplified, and the puncture efficiency is improved. Especially in the case of emergency treatment of patients, it helps to speed up the operation speed and reduce human operation errors, thereby improving the success rate of rescue, shortening the operation time, correspondingly reducing the sterile operation exposure time, reducing the risk of related infections, avoiding puncture complications related to guide wires, such as guide wire breakage, indwelling in the body or blood vessel damage, etc., effectively reducing unnecessary damage to patients and reducing the incidence of complications, and reducing potential medical disputes.
[0028] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An integrated central venous catheter, characterized by: The utility model provides a kind of multi-purpose catheter, including catheter body (1), the front end of catheter body (1) is provided with catheter tip (2), and the inside of catheter body (1) is opened with guide wire cavity (3), main cavity (6) and multiple side cavities (8), the front end of guide wire cavity (3) is sealed, and guide wire (12) is inserted in guide wire cavity (3), the front end of catheter tip (2) is opened with main hole (7) being communicated with main cavity (6), and catheter body (1) outer wall lower side rear position is opened with needle hole (10), puncture needle (4) is inserted in main cavity (6), and puncture needle (4) is in and out from rear needle hole (10) front end and passes through main hole (7) and is worn, the side wall of catheter body (1) is opened with multiple side holes (9) close to front side, and multiple side holes (9) are respectively communicated with multiple side cavities (8), the rear side of catheter body (1) is provided with connecting seat (11), and connecting seat (11) rear side is provided with multiple injection mechanisms corresponding with main cavity (6) and side cavity (8).
2. The integrated central venous catheter of claim 1, wherein: The connecting seat (11) is opened with communicating hole corresponding to the rear end of the guide wire cavity (3), and the rear end of the guide wire (12) is fixedly connected with the guide wire handle (13).
3. The integrated central venous catheter of claim 1, wherein: The injection mechanism includes infusion capillary (14) and open injection tail end (15), the infusion capillary (14) is communicated with the main cavity (6) and the plurality of side cavities (8), and the open injection tail end (15) is fixedly connected to the end of the infusion capillary (14).
4. The integrated central venous catheter of claim 1, wherein: The rear end of the puncture needle (4) is fixedly connected with the puncture handle (5).
5. The integrated central venous catheter of claim 1, wherein: The catheter body (1) is made of PUR material, and the front end of the catheter tip (2) is softened.
6. The integrated central venous catheter of claim 1, wherein: The outer wall of the catheter body (1) is fixedly connected with a fixator (16) at one end close to the connecting seat (11), and the fixator (16) is fixed on the skin of the patient by medical adhesive tape at both ends.