A vascular interventional treatment kit

Abstract

The present invention relates to the technical field of vascular interventional therapy, specifically a vascular interventional therapy kit comprising a main tube and a bypass tube. The bypass tube is connected to one side of the main tube, a valve body is provided at the proximal end of the main tube, a blood collection trough is provided on the inner wall of the valve body, the blood collection trough is connected to a blood collection bag, and the blood collection bag is provided with a negative pressure interface; a buffer mechanism is provided within the main tube for buffering blood pressure. In addition to buffering blood pressure through the buffer mechanism, this solution collects blood through the blood collection trough and blood collection bag, thereby reducing blood outflow during the insertion and removal of surgical tools.

Description

Technical Field

[0001] The present invention relates to the technical field of vascular interventional treatment, and in particular to a vascular interventional treatment kit. Background Art

[0002] Vascular interventional therapy is a minimally invasive method for diagnosing and treating vascular lesions by puncturing or incising the blood vessels and then using tools such as guidewires, catheters, and balloon stents. During treatment, a treatment catheter is inserted into the vessel, with the proximal end located outside the body. During treatment, surgical tools such as guidewires and balloon stents are inserted and removed through the catheter. Because the catheter is connected to the blood vessel, its internal pressure is consistent with the blood pressure within the vessel. Therefore, a sealing structure is required at the proximal end of the catheter to seal the catheter and block blood flow when surgical tools are not being inserted or removed.

[0003] Currently, a commonly used sealing structure is a Y-shaped hemostatic valve, such as the one disclosed in Chinese invention patent CN110621374B. This valve is opened and closed by rotating the proximal end of the valve, allowing surgical tools to enter and exit the catheter. However, this method still presents the following problems: after the surgical tool passes through the hemostatic valve and enters the catheter, the hemostatic valve is in the open state, leaving a gap between the hemostatic valve and the surgical tool. Furthermore, due to the pressure of blood in the blood vessels, blood can spurt out of this gap, causing bleeding, contaminating the operating table and potentially affecting surgical procedures. Summary of the Invention

[0004] The present invention is intended to provide a vascular interventional treatment kit to solve the problem that the existing hemostatic valve is prone to bleeding when inserting and removing surgical tools.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A vascular interventional treatment kit includes a main pipe and a bypass pipe. The bypass pipe is connected to one side of the main pipe. A valve body is provided at the proximal end of the main pipe. A blood collecting groove is provided on the inner wall of the valve body. The blood collecting groove is connected to a blood collection bag. A negative pressure interface is provided on the blood collection bag. A buffer mechanism for buffering blood pressure is provided in the main pipe.

[0007] The principles of this solution are:

[0008] The proximal end of the main pipe is connected to the end of the treatment catheter outside the body, and a valve body is installed at the distal end. When not in use, the valve body is closed to block the blood flow. When in use, the valve body is opened to allow surgical tools such as guidewires and balloon stents to enter and exit. This solution sets a buffer mechanism in the main pipe. When the valve body is opened and blood is ejected, the buffer mechanism buffers the pressure of the blood, so that the pressure of the blood is released in advance before it is ejected to the outside of the main pipe, thereby reducing the amount of blood ejected and the amount of bleeding. On this basis, when the valve body is opened, the blood collection bag is connected to the negative pressure suction device through the negative pressure interface. If blood flows out of the main pipe, it will be collected in the blood collection tank under the action of negative pressure, and will eventually be adsorbed into the blood collection bag for collection, thereby realizing blood collection, thereby avoiding the problem of blood contamination of the operating table or affecting the operation of medical staff.

[0009] Furthermore, the buffer mechanism includes at least two symmetrically arranged buffer plates, which are inclined with their distal ends away from the inner wall of the main tube and their proximal ends connected to the inner wall of the main tube, forming a tool channel for surgical tools to pass through between the distal ends of the buffer plates.

[0010] Beneficial effects: 1. A buffer plate is set, and blood can collide with the buffer plate when flowing out, thereby releasing part of the blood pressure and achieving blood buffering, and the structure is simple; 2. A tool channel for surgical tools to pass through is formed between the inner ends of the buffer plate, which does not affect the entry and exit of surgical tools; 3. The buffer plate is set at an angle and the distal end is away from the inner wall of the main pipe. On the basis of buffering the blood, it can also play a certain guiding role on the blood, guiding the blood to flow along the buffer plate, so that the blood is diverted to the inner wall of the main pipe and flows along the inner wall of the main pipe, so that the blood can flow better into the blood collecting trough for convenient negative pressure collection.

[0011] Furthermore, the buffer plates on the same horizontal line form a group, the buffer mechanism includes multiple groups of buffer plates, and the buffer plates between two adjacent groups are staggered.

[0012] Beneficial effects: 1. Setting up multiple groups of buffer plates can buffer the blood multiple times, and the buffering effect is better; 2. The two adjacent groups of buffer plates are staggered, that is, the lower buffer plate is set corresponding to the gap of the upper buffer plate. In this way, after the blood is buffered on the upper buffer plate, it can contact the lower buffer plate when falling from the gap of the buffer plate, and perform secondary buffering, thereby achieving the effect of multiple buffering; setting up multiple layers of buffer plates can perform multi-level diversion of blood, so as to guide as much blood as possible to flow along the inner wall of the main pipe, conveniently flowing into the blood collecting trough for collection, thereby minimizing the blood flowing out of the main pipe.

[0013] Furthermore, the buffer mechanism includes multiple frustum-shaped buffer covers, in which tool channels for surgical tools are provided, the small diameter end of the buffer cover faces the proximal end of the main pipe, and a guide channel for guiding blood is formed between the outer circle of the buffer cover and the inner wall of the main pipe.

[0014] Beneficial effects: 1. The truncated cone-shaped buffer cover can buffer blood on its circumference, that is, the area in contact with the blood is larger and the buffering effect is better; 2. The large diameter end of the buffer cover is not completely connected to the inner wall of the main pipe, thereby forming a guide channel between the outer circle of the buffer cover and the inner wall of the main pipe, so that the buffer cover can not only buffer blood, but also guide part of the blood to flow along the inner wall of the main pipe, so that it can be better collected in the blood collecting groove opened on the inner wall of the main pipe.

[0015] Furthermore, a buffer mechanism for buffering blood is provided in the main pipe.

[0016] Beneficial effect: Utilizing the buffer mechanism to buffer part of the blood can further reduce the amount of bleeding.

[0017] Furthermore, the cache mechanism includes a frustum-shaped cache cover, in which a tool channel for surgical tools to pass through is provided. The small diameter end of the cache cover faces the proximal end of the main pipe, and the large diameter end of the cache cover is connected to the inner wall of the main pipe. A cache cavity for caching blood is formed between the outer circle of the cache cover and the inner wall of the main pipe.

[0018] Beneficial effect: The large diameter end of the buffer cover is completely connected and sealed with the inner wall of the main pipe, thereby forming a buffer cavity between the buffer cover and the inner wall of the main pipe. Part of the blood can be trapped in the buffer cavity, thereby reducing the outflow of blood.

[0019] Furthermore, the blood collecting trough is an annular blood collecting trough.

[0020] Beneficial effects: The annular blood collecting trough can collect blood in the circumferential direction, with a larger blood collection volume and a better collection effect.

[0021] Furthermore, an annular blood-blocking ring is provided at the proximal end of the valve body.

[0022] Beneficial effect: Providing a blood-blocking ring can block blood outflow to a certain extent, thereby further reducing the amount of blood outflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of embodiment 1 of the present invention;

[0024] Figure 2 for Figure 1 A longitudinal sectional view of the valve body, in which the arrows indicate the direction of blood flow, and the specific structure inside the valve body is not shown;

[0025] Figure 3 for Figure 2 AA section view;

[0026] Figure 4 A longitudinal cross-sectional view of a second embodiment of the present invention;

[0027] Figure 5 for Figure 4 BB section view of the valve body portion is not shown in the figure;

[0028] Figure 6 A longitudinal cross-sectional view of a third embodiment of the present invention;

[0029] Figure 7 A longitudinal cross-sectional view of a fourth embodiment of the present invention;

[0030] Figure 8 It is a partial top view of embodiment 4 of the present invention. DETAILED DESCRIPTION

[0031] The following is further described in detail through specific implementation methods:

[0032] The figure marks in the drawings of the specification include: main pipe 1, bypass pipe 11, valve body 12, sealing plug 13, blood collecting blood vessel 2, blood collecting groove 21, blood retaining ring 22, buffer cover 3, connecting strip 31, guide channel 32, tool channel 33, buffer plate 34, connecting plate 35, mounting groove 36, mounting ear 37, connecting ring 38, buffer cover 4, buffer cavity 41.

[0033] Example 1:

[0034] like Figure 1 、 Figure 2 and Figure 3 As shown, a vascular interventional treatment kit includes a main tube 1 and a bypass tube 11. The bypass tube 11 is connected to one side of the main tube 1 and is plugged with a sealing plug 13. Figure 2 A valve body 12 is installed at the lower end. In this embodiment, the valve body 12 adopts the valve body 12 used in the hemostasis valve in the prior art, such as the structure of the valve body 12 used in Chinese invention patent CN110621374B. The main pipe 1 is opened and closed by rotating the valve body 12. The specific structure of the valve body 12 is not described in detail in this embodiment.

[0035] The proximal end of the valve body 12 is integrally formed with an annular blood retaining ring 22. The inner wall of the valve body 12 is provided with an annular blood collecting groove 21. The blood collecting groove 21 is connected to a blood collecting bag (not shown in the figure) through a collecting tube 2. The blood collecting bag is provided with a negative pressure interface. A buffer mechanism for buffering blood pressure is provided in the main pipe 1. In this embodiment, the buffer mechanism includes three frustum-shaped buffer covers 3. A tool channel 33 for surgical tools to pass through is provided in the buffer cover 3. The small diameter end of the buffer cover 3 faces the distal end of the main pipe 1 ( Figure 2 The upper end and the large diameter end are glued and fixed to the main pipe 1 through a connecting strip 31, and a guide channel 32 for guiding blood is formed between the outer circle of the buffer cover 3 and the inner wall of the main pipe 1.

[0036] The specific implementation process is as follows:

[0037] Connect the remote end of main tube 1 ( Figure 2 The upper and middle end of the bypass tube 11 is connected to the end of the treatment catheter outside the body, and the blood collection bag is connected to the negative pressure equipment (the negative pressure drainage equipment used in hospitals in the prior art) through the negative pressure interface. The bypass tube 11 is sealed by the sealing plug 13 when not in use. When it is necessary to introduce surgical tools such as guide wires and balloon stents, the valve body 12 is opened, and surgical tools such as guide wires and balloons are introduced from the tool channel 33. At this time, the main tube 1 is connected to the outside atmosphere, and blood flows from the treatment catheter into the main tube 1. When the blood flows into the main tube 1, it contacts the three buffer covers 3 in turn to achieve multiple buffering, thereby buffering the pressure of the blood and preventing it from being sprayed out of the main tube 1 all at once. On this basis, the buffer cover 3 can also guide the blood to a certain extent. As shown by the arrows in the figure, when the blood flows to the first buffer cover 3, part of the blood can pass directly through the tool channel 33 on the first buffer cover 3, and part of the blood flows through the guide channel 32 between the buffer cover 3 and the main pipe 1, realizing a primary diversion; when the former flows to the second buffer cover 3, part of the blood will flow through the guide channel 32 between the buffer cover 3 and the main pipe 1, realizing a secondary diversion. In this way, through the three diversions of the three buffer covers 3, most of the blood flows out from the guide channel 32, that is, flows out along the inner wall of the main pipe 1, and finally flows into the blood collecting tank 21. Under the action of negative pressure, the blood is collected in the blood collection bag, thereby reducing the outflow of blood.

[0038] This embodiment uses a buffer mechanism to buffer the blood, preventing it from being ejected directly from the main tube 1. At the same time, negative pressure is used to collect the blood into the blood collection bag, effectively reducing the amount of blood ejected. Furthermore, the buffer mechanism can also divert the blood, allowing most of the blood to flow along the inner wall of the main tube 1 into the blood collection tank 21 for easy collection.

[0039] Example 2:

[0040] like Figure 4 and Figure 5 As shown, the difference between this embodiment and the first embodiment is that the buffer mechanism includes at least two symmetrically arranged buffer plates 34. In this embodiment, the number of buffer plates 34 is two, and it can also be three or four. The two buffer plates 34 are arranged at an angle, with the distal ends away from the inner wall of the main tube 1 and the proximal ends connected to the inner wall of the main tube 1. A tool channel 33 for the passage of surgical tools is formed between the distal ends of the buffer plates 34. The buffer plates 34 on the same horizontal line are one layer. In this embodiment, three layers of buffer plates 34 are provided, and the buffer plates 34 between adjacent layers are staggered (such as Figure 5 As shown), that is, the gap between the lower buffer plate 34 and the upper buffer plate 34 is set.

[0041] In this embodiment, blood can contact the buffer plate 34 when flowing out, thereby being buffered on the buffer plate 34. The provision of three layers of buffer plates 34 can achieve triple buffering, resulting in a good buffering effect. In addition, the inclined buffer plates 34 can also guide some blood to flow along the inner wall of the main tube 1, thereby facilitating collection.

[0042] Example 3:

[0043] like Figure 6 As shown, the difference between this embodiment and the second embodiment is that a buffer mechanism for caching blood is provided in the main pipe 1, and the buffer mechanism can be provided in multiple numbers and alternately arranged with the buffer plate 34 in the main pipe 1, and the buffer mechanism includes a frustum-shaped buffer cover 4, and a tool channel 33 for surgical tools to pass through is opened in the buffer cover 4, the small diameter end of the buffer cover 4 faces the proximal end of the main pipe 1, and the large diameter end of the buffer cover 4 is connected to the inner wall of the main pipe 1, and the outer circle of the buffer cover 4 is sealed to the inner wall of the main pipe 1 to form a buffer cavity 41 for caching blood.

[0044] In this embodiment, during the blood outflow process, after being buffered by the buffer plate 34, the blood flowing along the guide channel 32 can flow directly into the buffer chamber 41 and be collected. In this way, the blood flowing out along the guide channel 32 is gradually collected in the buffer chamber 41, thereby reducing the amount of blood outflow; the small amount of blood flowing out along the tool channel 33 can be adsorbed into the blood collection bag under the action of negative pressure and collected.

[0045] Example 4:

[0046] Combine Figure 7 and Figure 8 As shown, this embodiment differs from the first embodiment in that the three buffer covers 3 are connected as a whole via a plurality of connecting plates 35. The connecting plates 35 are evenly distributed around the circumference of the buffer cover 3 and are integrally formed or glued to the buffer cover 3. In this embodiment, there are four connecting plates 35. Connecting rings 38 are integrally formed at the tops of the four connecting plates 35 for connecting the four connecting plates 35. The tops of the four connecting plates 35 are bent outward to form mounting ears 37. Four mounting grooves 36 are evenly spaced at the top of the main pipe 1 for snapping onto the mounting ears 37.

[0047] In this embodiment, the three buffer covers 3 are integrated into a single unit. During use, the three buffer covers 3 are inserted into the main pipe 1 from the top. The mounting ears 37 are aligned with the mounting slots 36, and the mounting ears 37 are snapped into the mounting slots 36 to complete the installation of the three buffer covers 3. With this embodiment, the three buffer covers 3 are integrated into a single unit and can be manufactured separately and then assembled into the main pipe 1. This facilitates production and assembly, and is simple.

[0048] The above is only an embodiment of the present invention, and the common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A vascular interventional treatment kit, characterized by: It includes a main pipe and a bypass pipe, the bypass pipe is connected to one side of the main pipe, a valve body is provided at the proximal end of the main pipe, a blood collecting groove is provided on the inner wall of the valve body, the blood collecting groove is connected to a blood collecting bag, and a negative pressure interface is provided on the blood collecting bag; a buffer mechanism for buffering blood pressure is provided in the main pipe; the buffer mechanism includes a plurality of frustum-shaped buffer covers, a tool channel for surgical tools to pass through is provided in the buffer cover, the small diameter end of the buffer cover faces the proximal end of the main pipe, and a guide channel for guiding blood is formed between the outer circle of the buffer cover and the inner wall of the main pipe; the buffer covers are connected into a whole by a plurality of connecting plates, the plurality of connecting plates are evenly distributed in the circumference of the buffer cover and are integrally formed with the buffer cover or glued and fixed, the top of the plurality of connecting plates are integrally formed with a connecting ring, the tops of the plurality of connecting plates are bent outward to form mounting ears, and four mounting grooves for clamping the mounting ears are evenly opened on the top of the main pipe.

2. The vascular interventional treatment kit according to claim 1, characterized in that: A buffer mechanism for buffering blood is provided in the main pipe.

3. The vascular interventional treatment kit according to claim 2, characterized in that: The cache mechanism includes a frustum-shaped cache cover, in which a tool channel for surgical tools to pass through is provided. The small diameter end of the cache cover faces the proximal end of the main pipe, and the large diameter end of the cache cover is connected to the inner wall of the main pipe. A cache cavity for caching blood is formed between the outer circle of the cache cover and the inner wall of the main pipe.

4. The vascular interventional treatment kit according to claim 3, characterized in that: The blood collecting trough is an annular blood collecting trough.

5. The vascular interventional treatment kit according to claim 4, characterized in that: An annular blood-blocking ring is arranged at the proximal end of the valve body.

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