Vascular endoscope

Abstract

The vascular endoscope comprises a handle and a catheter, one end of the catheter is coaxially fixed in the handle, and an instrument channel used for being inserted into an endoscope or a fiberscope and a balloon tube channel used for being inserted into a balloon tube are formed in the catheter in the axial direction of the catheter. An instrument channel joint communicated with the instrument channel and a balloon tube channel joint communicated with the balloon tube channel are arranged on the handle; a blood channel is formed in the balloon tube in the axial direction of the balloon tube, and a blood via hole communicated with the blood channel is formed in the surface of the catheter. According to the vascular endoscope, arterial blood flow can be prevented from passing through an operation site through insertion of the balloon tube and balloon water injection, meanwhile, the arterial blood can enter the downstream artery of the operation through the blood channel and the blood via hole, normal flowing of the blood is not blocked in the operation process, the morbidity of important visceral organs is reduced, and the operation efficiency is improved. The postoperative survival rate and the survival quality of the patient are improved, the surgical risk is reduced, and the operable time of the surgery is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a vascular endoscope. Background Technology

[0002] Currently, cardiovascular and cerebrovascular diseases are the leading cause of health problems affecting humans.

[0003] In recent years, with the rapid development of computers and medical equipment, computed tomography (CT), cardiovascular magnetic resonance imaging (MRI), digital subtraction angiography (DSA), intravascular ultrasound, and optical coherence tomography (OCT) have been successively applied in clinical practice, significantly improving the diagnosis and treatment of cardiovascular diseases and making interventional therapy an important means of treating vascular diseases. However, current interventional vascular treatments are all performed using these detection technologies, which are all non-intuitive imaging techniques. Doctors or patients see computer-processed images of cardiovascular tissue, which do not achieve the intuitive observation effect of endoscopy or laparoscopy. This seriously restricts the continued development of cardiovascular disease diagnosis and treatment technology. Furthermore, radiation damage to patients and medical staff is unavoidable during treatment. Angioscopy is a method of obtaining visual images using an endoscope, and it is a means of detecting cardiovascular tissue based on the theory of endoscopy. Angioscopy has been developed for over 90 years, but before the 1980s, because the cardiovascular system was filled with blood, angioscopes could not obtain good images and were mainly used for examinations during cardiothoracic surgery. After the 1980s, angioscopes began to be equipped with balloons that effectively blocked blood flow, allowing for a clearer view of changes in the vascular lumen. This truly promoted the clinical application of angioscopes and ushered in the era of interventional angioscopic examinations.

[0004] However, because it requires blocking blood flow, angioscopy can only be used for vascular examinations and is not suitable for cardiac examinations. Furthermore, the examination requires frequent blocking and opening of blood flow, making it impossible to obtain clear images over a long period of time. In addition, it is difficult to perform surgical treatment at the same time as the examination. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the aforementioned background technology and provide a vascular endoscope that can perform surgical treatments simultaneously with examinations without requiring procedures to block or open blood flow.

[0006] To achieve this objective, the vascular endoscope designed in this utility model includes a handle and a catheter coaxially fixed at one end within the handle. The catheter has an instrument channel for inserting an endoscope or fiberscope and a balloon tube channel for inserting a balloon tube along its axial direction. The handle is provided with an instrument channel connector communicating with the instrument channel and a balloon tube channel connector communicating with the balloon tube channel. The balloon tube has a blood channel along its axial direction inside, and the surface of the catheter has a blood passage communicating with the blood channel.

[0007] Furthermore, the conduit is a semi-rigid tube that can be bent at any position.

[0008] Furthermore, the surface of the catheter is provided with a plurality of blood passages spaced apart along its axial direction.

[0009] Furthermore, the balloon tube has an axially separated balloon water injection channel and blood channel, and a balloon connected to the balloon water injection channel is fixed on the front end surface of the balloon tube.

[0010] Furthermore, the front end of the balloon water injection channel is a closed structure, the rear end of the balloon water injection channel is a through-hole structure, and the rear end of the balloon tube is connected to a balloon water injection structure that communicates with the balloon water injection channel.

[0011] Furthermore, the front end of the blood channel has a through-hole structure, and the rear end of the blood channel has a closed structure.

[0012] Furthermore, the balloon water injection structure includes a pipe joint coaxially connected to the rear end of the balloon tube and a balloon water injection check valve communicating with the pipe joint via a connecting pipe.

[0013] Furthermore, the balloon has an axial hole along its axis, and the balloon tube coaxially passes through the axial hole of the balloon, with the hole walls at both ends of the axial hole of the balloon fixed to the surface of the balloon tube.

[0014] Furthermore, both the instrument channel connector and the balloon tube channel connector are Luer connectors.

[0015] Furthermore, the catheter has at least two instrument channels formed along its axial direction inside.

[0016] The beneficial effects of this invention are as follows: The angioscope designed in this invention can block arterial blood flow through the surgical site by inserting a balloon catheter and injecting water into the balloon. Simultaneously, arterial blood can enter the downstream artery through the blood channel and blood passage, ensuring that normal blood flow is not interrupted during the surgery. This reduces the incidence of diseases affecting vital organs, improves postoperative survival rate and quality of life for patients, reduces surgical risks, and extends the operable time of the surgery. Furthermore, the instrument channel allows for the insertion of instruments such as fiberoptic endoscopes and endoscopes, enabling visualization of the surgery without the need for scanning and angiography, reducing surgical trauma and lowering surgical costs. Attached Figure Description

[0017] Figure 1 The three-dimensional angioscope of this utility model Figure 1 ;

[0018] Figure 2 for Figure 1Sectional view of AA;

[0019] Figure 3 The three-dimensional angioscope of this utility model Figure 2 ;

[0020] Among them, 1—balloon, 2—catheter, 3—handle, 4—tube connector, 5—balloon water injection check valve, 6—fiberoscope, 7—connecting tube, 8—balloon water injection channel, 9—fiberoscope channel, 10—endoscope channel, 11—blood channel, 12—balloon tube channel connector, 13—balloon tube channel, 14—blood passage, 15—balloon tube, 16—fiberoscope connector, 17—endoscope connector. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1 The vascular endoscope shown in Figure 3 includes a handle 3 and a catheter 2 coaxially fixed at one end inside the handle 3. The catheter 2 has an endoscope channel 10 for inserting an endoscope, a fiberoscope channel 9 for inserting a fiberoscope 6, and a balloon tube channel 13 for inserting a balloon tube 15 along its axial direction. The handle 3 is provided with an endoscope connector 17 communicating with the endoscope channel 10, a fiberoscope connector 16 communicating with the fiberoscope channel 9, and a balloon tube channel connector 12 communicating with the balloon tube channel 13.

[0023] The balloon tube 15 has an axially oriented, non-communicating balloon water injection channel 8 and blood channel 11. The front end of the balloon water injection channel 8 is closed, while the rear end is through-hole. A balloon water injection structure communicating with the balloon water injection channel 8 is connected to the rear end of the balloon tube 15. The front end of the blood channel 11 is through-hole, while the rear end is closed. The balloon water injection structure includes a pipe connector 4 coaxially connected to the rear end of the balloon tube 15 and a balloon water injection check valve 5 communicating with the pipe connector 4 via a connecting pipe 7. The balloon 1 has an axially oriented shaft hole. The front end of the balloon tube 15 coaxially passes through the shaft hole of the balloon 1. The walls of both ends of the shaft hole of the balloon 1 are fixed to the surface of the balloon tube 15. The balloon water injection channel 8 communicates with the balloon 1.

[0024] The catheter 2 is a semi-rigid tube that can be bent at any position. Multiple blood passages 14 communicating with the blood channel 11 are spaced apart along its axial direction on the surface of the catheter 2.

[0025] In this invention, the catheter 2 is bent according to the location of the artery and inserted into the artery. The balloon tube is inserted through the balloon tube channel connector 12, and the fiberscope 6 is inserted through the fiberscope connector 16 to observe the location of the balloon 1 and the lesion. The balloon 1 is positioned in front of the blood flow direction of the lesion. Water is injected into the balloon water injection channel 8 through the balloon water injection one-way valve 5. The balloon 1 expands and blocks the blood flow in front of the lesion. At this time, the blood flows behind the lesion through the blood channel 11 and the blood through hole 14. The lesion is no longer surrounded by blood flow. At the same time, it does not affect the normal blood flow. The condition of the lesion can be clearly observed by the fiberscope 6. If the field of vision is not clear, the endoscope can be inserted through the endoscope channel 10 and water can be injected into the lesion through the endoscope to flush it. This ensures that the field of vision of the fiberscope 6 is clear. The treatment instrument is introduced through the endoscope to perform a visual surgical operation on the lesion.

[0026] In summary, the angioscope designed in this invention can block arterial blood flow through the surgical site by inserting the balloon tube 15 and inflating the balloon. Simultaneously, arterial blood can enter the downstream artery through the blood channel 11 and blood through-hole 14. The normal blood flow is not interrupted during the surgery, reducing the incidence of serious organ malformations, improving postoperative survival rate and quality of life, reducing surgical risks, and extending the operable time of the surgery. Furthermore, instruments such as the fiberoptic endoscope 6 and endoscopes can be inserted through the instrument channel, achieving visualization without scanning and angiography, reducing surgical trauma and lowering surgical costs.

[0027] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the structure of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An angioscope comprising a handle (3) and a catheter (2) coaxially fixed at one end in said handle (3), characterized in that: The catheter (2) has an instrument channel for inserting an endoscope or fiberscope (6) and a balloon tube channel (13) for inserting a balloon tube (15) along its axial direction inside. The handle (3) is provided with an instrument channel connector communicating with the instrument channel and a balloon tube channel connector (12) communicating with the balloon tube channel (13). The balloon tube (15) has a blood channel (11) along its axial direction inside. The catheter (2) has a blood passage (14) communicating with the blood channel (11) on its surface.

2. The angioscope of claim 1, wherein: The conduit (2) is a semi-rigid tube that can be bent at any position.

3. The angioscope of claim 1 or 2, wherein: The surface of the catheter (2) is provided with a plurality of blood passages (14) spaced apart along its axial direction.

4. The angioscope of claim 1, wherein: The balloon tube (15) has a balloon water injection channel (8) and a blood channel (11) that are not interconnected along its axial direction inside. A balloon (1) that communicates with the balloon water injection channel (8) is fixed on the front end surface of the balloon tube (15).

5. The angioscope of claim 4, wherein: The front end of the balloon water injection channel (8) is a closed structure, the rear end of the balloon water injection channel (8) is a through-hole structure, and the rear end of the balloon tube (15) is connected to a balloon water injection structure that communicates with the balloon water injection channel (8).

6. The angioscope of claim 5, wherein: The front end of the blood channel (11) is a through-hole structure, and the rear end of the blood channel (11) is a closed structure.

7. The angioscope of claim 6, wherein: The balloon water injection structure includes a pipe joint (4) coaxially connected to the rear end of the balloon tube (15) and a balloon water injection check valve (5) connected to the pipe joint (4) via a connecting pipe (7).

8. The angioscope of claim 4, wherein: The balloon (1) has an axial hole along its axis, and the balloon tube (15) passes through the axial hole of the balloon (1) coaxially. The walls of both ends of the axial hole of the balloon (1) are fixed to the surface of the balloon tube (15).

9. The angioscope of claim 1, wherein: Both the instrument channel connector and the balloon tube channel connector (12) are Luer connectors.

10. The angioscope of claim 1, wherein: The catheter (2) has at least two instrument channels opened along its axial direction inside.

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