Blood vessel stitching instrument

Abstract

The invention discloses a blood vessel stitching instrument, which comprises a stitching tube, a needle head, a needle head, a needle head, a needle head, a needle head and a needle head, the driving handle is connected with one end of the suture tube, a suture needle set is arranged on the driving handle, and the driving handle is used for driving the butt joint line set to be unfolded and driving the suture needle set to be in butt joint with the butt joint line set; the leading-in pipe is connected with the other end of the suture pipe, a port is formed in the end, away from the suture pipe, of the leading-in pipe, a guide wire outlet is further formed in the leading-in pipe, and a hollow channel communicated with the port and the guide wire outlet is formed in the leading-in pipe; and the hemostasis piece is arranged in the hollow channel. The hemostasis part is used for the guide wire to penetrate through, the hemostasis part plays a certain blocking role in the hollow channel, the blood flowing resistance is increased, blood cannot flow out under normal blood pressure, and therefore blood flow loss is avoided, and the safety of the blood vessel stitching instrument is further improved.

Description

Technical Field

[0001] The present application belongs to the technical field of vascular suturing, and in particular relates to a vascular suturing device. Background Art

[0002] Interventional therapy is a treatment method that uses puncture needles, catheters and other interventional equipment under the guidance and monitoring of imaging equipment to introduce specific instruments into the lesion site of the human body through natural channels or tiny incisions for minimally invasive treatment. Taking vascular interventional medicine as an example, after opening an intervention port on the blood vessel, the interventional equipment is sent into the blood vessel through the intervention port and sent to the lesion for treatment. After the treatment is completed, the interventional equipment is retrieved and the intervention port is sutured.

[0003] A vascular suture device is a medical device commonly used in vascular surgery, mainly used for repairing and anastomosing vascular injuries. How to improve the safety of vascular suture surgery is a technical problem that needs to be solved urgently. Summary of the invention

[0004] The present application provides a vascular suturing device to improve the safety of vascular suturing surgery.

[0005] To solve the above technical problems, a technical solution adopted in the present application is: a vascular suturing device, comprising: a suture tube, on which a docking wire group is movably arranged; a driving handle, connected to one end of the suture tube, on which a suture needle group is arranged, the driving handle is used to drive the docking wire group to unfold, and to drive the suture needle group to dock with the docking wire group; an introduction tube, connected to the other end of the suture tube, the introduction tube has a port at one end away from the suture tube, a guide wire outlet is also formed on the introduction tube, and a hollow channel connecting the port and the guide wire outlet is provided in the introduction tube; a hemostatic member is arranged in the hollow channel.

[0006] According to one embodiment of the present application, the introduction tube includes: an outer tube, the outer tube is connected to the suture tube, the port is formed at one end of the outer tube away from the suture tube, a guide wire outlet is also formed on the outer tube, and a hollow channel connecting the port and the guide wire outlet is also formed in the outer tube; an annular groove is also formed in the outer tube, and the annular groove is connected to the hollow channel; an inner tube, embedded in the annular groove, and the inner tube is hollow; wherein the hemostatic component is embedded in the annular groove and is located between the inner tube and the port.

[0007] According to one embodiment of the present application, the hemostatic component includes: a mounting ring embedded in the annular groove; a hemostatic valve core disposed in the mounting ring, the hemostatic valve core allows the guide wire to pass through, and the hemostatic valve core keeps the hollow channel in a closed state.

[0008] According to one embodiment of the present application, the hemostatic valve core includes a plurality of leaflets, which are arranged in a circular array in the mounting ring, and adjacent leaflets overlap each other to form a closure in the hollow channel; when the guide wire passes through the hemostatic component, the resilience of the plurality of leaflets makes it stick to the guide wire.

[0009] According to one embodiment of the present application, the inner tube is made of expandable material, and the inner tube can absorb liquid and expand to block the hollow channel.

[0010] According to one embodiment of the present application, a flow monitoring component is further disposed in the inner tube. The flow monitoring component is located at one end of the inner tube close to the hemostatic component to monitor the blood flow.

[0011] According to one embodiment of the present application, the suture tube has a receiving groove, and the docking wire group includes: a foot wing, which is rotatably arranged on the suture tube, and the driving handle drives the foot wing to rotate so that the two ends of the foot wing are rotated out of the receiving groove or received back into the receiving groove, and the two ends of the foot wing are respectively provided with a clamping groove; a connecting wire, which is wound on the foot wing, and the two ends of the connecting wire are respectively provided with a sleeve, and the sleeve is clamped in the clamping groove.

[0012] According to one embodiment of the present application, the driving handle includes: a handle body connected to one end of the suture tube; a shift rod rotatably disposed on the handle body, and the shift rod is connected to the foot wing through a connecting rod to drive the foot wing to rotate.

[0013] According to one embodiment of the present application, the driving handle further includes a push rod, which is slidably disposed on the handle body, the push rod is connected to the suture needle group, and the push rod can drive the suture needle group to approach or move away from the docking line group.

[0014] According to one embodiment of the present application, the suture needle group includes a first suture needle and a second suture needle, the end of the first suture needle is connected to the suture thread, and the first suture needle can drive the suture thread to be engaged with the corresponding sleeve; the second suture needle is inserted into the knot, and the second suture needle is engaged with the corresponding sleeve.

[0015] The beneficial effects of the present application are as follows: after the introduction tube is extended into the blood vessel from the opening to be sutured, the driving handle drives the docking wire group in the suture tube to expand in the blood vessel, and the driving handle further drives the suture needle group to dock with the docking wire group; after threading is completed, the driving handle drives the docking wire group to be retracted into the suture tube, and the vascular suturer is withdrawn. After the vascular suturer is pulled out, the thread trimmer can be used to push the knot to the wound position, tighten the knot and trim the excess thread to complete the suture. The hemostatic piece is for the guide wire to pass through, but the hemostatic piece plays a certain blocking role in the hollow channel, increasing the resistance of blood flow. Under normal blood pressure, blood cannot flow out, thereby avoiding blood loss, further improving the safety of the vascular suturer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0017] Figure 1 is a front structural schematic diagram of a vascular suture device according to an embodiment of the present application;

[0018] Figure 2 It is a partial structural schematic diagram of a vascular suture device according to an embodiment of the present application;

[0019] Figure 3 is a schematic cross-sectional structure diagram of an introduction tube of a vascular suture device according to an embodiment of the present application;

[0020] Figure 4 It is a schematic cross-sectional structure diagram of a hemostatic component of a vascular suturing device according to an embodiment of the present application.

[0021] In the figure: 100, suture device; 110, suture tube; 111, docking line group; 112, foot wing; 113, slot; 114, connecting line; 115, suture needle group; 1151, first suture needle; 1152, second suture needle; 1153, suture thread; 120, driving handle; 121, handle body; 122, lever; 123, push rod; 130, introduction tube; 131, outer tube; 132, inner tube; 133, port; 134, guide wire outlet; 135, hollow channel; 136, annular groove; 140, hemostatic member; 141, mounting ring; 142, hemostatic valve core; 1421, leaflet. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] See also Figures 1 to 3 , Figure 1 is a front structural schematic diagram of a vascular suture device according to an embodiment of the present application; Figure 2 It is a partial structural schematic diagram of a vascular suture device according to an embodiment of the present application; Figure 3 It is a schematic cross-sectional structure diagram of an introduction tube of a vascular suturing device according to an embodiment of the present application.

[0025] An embodiment of the present application provides a vascular suture device 100. The vascular suture device 100 includes a driving handle 120, a suture tube 110, an introduction tube 130 and a hemostatic member 140. A docking wire group 111 is movably provided on the suture tube 110, and the driving handle 120 is connected to one end of the suture tube 110. A suture needle group 115 is provided on the driving handle 120. The driving handle 120 is used to drive the docking wire group 111 to expand, and to drive the suture needle group 115 to dock with the docking wire group 111. The introduction tube 130 is connected to the other end of the suture tube 110. The end of the introduction tube 130 away from the suture tube 110 has a port 133. A guide wire outlet 134 is also formed on the introduction tube 130. A hollow channel 135 connecting the port 133 and the guide wire outlet 134 is provided in the introduction tube 130.

[0026] When suturing a blood vessel is required, a guide wire is placed in the blood vessel to guide the introduction tube 130 into the blood vessel. The guide wire can be introduced from the port 133 of the introduction tube 130, and then led out from the guide wire outlet 134 after passing through the hollow channel 135. The introduction tube 130 can then accurately enter the blood vessel from the port to be sutured, thereby improving the safety and efficiency of suturing. After the introduction tube 130 accurately enters the blood vessel, the guide wire can be withdrawn from the guide wire outlet 134, and the introduction tube 130 can continue to extend into the blood vessel until the docking wire group 111 on the suture tube 110 enters the blood vessel. When the docking wire group 111 extends from the opening to be sutured into the blood vessel, the driving handle 120 drives the docking wire group 111 in the suture tube 110 to expand in the blood vessel, and the driving handle 120 further drives the suture needle group 115 to dock with the docking wire group 111; after docking, the suture needle group 115 can be pulled out to thread the needle, and then the driving handle 120 drives the docking wire group 111 to be retracted into the suture tube 110, and the vascular suture device 100 is withdrawn. After the vascular suture device 100 is withdrawn, the thread trimmer can be used to push the knot to the wound position, tighten the knot and trim the excess thread to complete the suture.

[0027] It should be noted that when the vascular suture device 100 is placed in place for suturing, the guide wire outlet 134 of the introduction tube 130 is located in the blood vessel, but before the introduction tube 130 is completely placed, the blood in the blood vessel may flow out through the introduction tube 130 due to the hollow setting of the introduction tube 130. In order to prevent blood loss, the vascular suture device 100 also includes a hemostatic member 140. The hemostatic member 140 is arranged in the hollow channel 135. The hemostatic member 140 allows the guide wire to pass through, but the hemostatic member 140 plays a certain blocking role in the hollow channel 135, increasing the resistance of blood flow. Under normal blood pressure, blood cannot flow out, thereby avoiding blood loss, further improving the safety of the vascular suture device 100.

[0028] In some embodiments, the suture tube 110 has a receiving groove (not shown in the figure). The docking wire group 111 includes a foot wing 112 and a connecting wire 114. The foot wing 112 is rotatably arranged on the suture tube 110, and the driving handle 120 drives the foot wing 112 to rotate, so that the two ends of the foot wing 112 can be rotated out of the receiving groove, and the driving handle 120 drives the foot wing 112 to rotate in the opposite direction, so that the foot wing 112 can be accommodated back into the receiving groove. The two ends of the foot wing 112 have a card slot 113 respectively. The connecting wire 114 is wound around the foot wing 112, and the two ends of the connecting wire 114 are respectively provided with a sleeve (not shown in the figure). The sleeve is clamped in the card slot 113. The docking wire group 111 can penetrate the blood vessel and be clamped with the sleeve. The retreat of the docking wire group 111 can drive the connecting wire 114 to move outside the sleeve, thereby completing the threading. Usually, the connecting wire 114 is white.

[0029] Specifically, the suture needle group 115 includes a first suture needle 1151 and a second suture needle 1152. The end of the first suture needle 1151 is connected to the suture thread 1153, and the first suture needle 1151 can drive the suture thread 1153 to engage with the corresponding sleeve; the second suture needle 1152 is inserted into the knot, and the end of the second suture needle 1152 is engaged with the corresponding sleeve. When the first suture needle 1151 and the second suture needle 1152 penetrate into the blood vessel, the suture thread 1153 at the end of the first suture needle 1151 can engage with the corresponding sleeve, the first suture needle 1151 is separated from the suture thread 1153, and the end of the second suture needle 1152 is engaged with the corresponding sleeve. At this time, the suture needle group 115 is withdrawn, the second suture needle 1152 pulls the connecting line 114 out of the blood vessel, and the connecting line 114 pulls the suture thread 1153 to complete the suture threading and pass back into the knot. After the vascular suture device 100 is withdrawn, a thread trimmer can be used to push the knot to the wound position, tighten the knot and trim the excess thread ends to complete the suturing. Typically, the suture 1153 is blue.

[0030] Further, the driving handle 120 includes a handle body 121 and a lever 122. The handle body 121 is connected to one end of the suture tube 110. The lever 122 is rotatably disposed on the handle body 121. The lever 122 is connected to the foot wing 112 through a connecting rod to drive the foot wing 112 to rotate. By moving the lever 122 back and forth, the foot wing 112 can be driven to expand and retract. The connecting rod is located in the handle body 121 and extends to the suture tube 110.

[0031] Further, the driving handle 120 also includes a push rod 123. The push rod 123 can be slidably disposed on the handle body 121. The push rod 123 is connected to the suture needle group 115. The push rod 123 can drive the suture needle group 115 to approach or move away from the docking line group 111. By pushing the push rod 123 toward the direction close to the introduction tube 130, the suture needle group 115 can be driven to penetrate into the blood vessel, and by pulling the push rod 123 toward the direction away from the introduction tube 130, the suture needle group 115 can be driven to withdraw from the blood vessel, thereby completing threading. The push rod 123 can be withdrawn from the handle body 121 to completely withdraw the suture needle group 115 and drive the suture line 1153 to complete threading.

[0032] In some embodiments, the introduction tube 130 includes an outer tube 131 and an inner tube 132. The outer tube 131 is connected to the suture tube 110. A port 133 is formed at one end of the outer tube 131 away from the suture tube 110. A guide wire outlet 134 is formed on the outer tube 131, and a hollow channel 135 connecting the port 133 and the guide wire outlet 134 is also formed on the outer tube 131. An annular groove 136 is also formed in the outer tube 131, and the annular groove 136 is communicated with the hollow channel 135. The inner tube 132 is embedded in the annular groove 136, and the inner tube 132 is hollow and can allow the guide wire to pass through. Among them, the hemostatic member 140 is embedded in the annular groove 136 and is located between the inner tube 132 and the port 133. By setting the inner tube 132 and the outer tube 131, the inner tube 132 can press the hemostatic member 140 against one end of the annular groove 136, thereby realizing the positioning of the hemostatic member 140.

[0033] In some embodiments, the inner tube 132 is made of expandable material, and the inner tube 132 can absorb liquid and expand to block the hollow channel 135. If in abnormal circumstances, there is blood flow through the hemostatic member 140 and reaches the position of the inner tube 132, because the inner tube 132 is made of expandable material, the inner tube 132 can absorb liquid and expand. On the one hand, when the blood flow is small, the inner tube 132 can absorb blood to avoid affecting the suturing process; on the other hand, after absorbing a certain amount of blood, the inner tube 132 quickly expands to block the hollow channel 135, thereby forming a physical barrier to effectively block the blood flow.

[0034] Specifically, the inner tube 132 may be a sponge tubular structure made of PVA polyvinyl alcohol, starch, collagen, etc. The inner tube 132 may be deformed to be placed in the annular groove 136 of the outer tube 131, and may also restore its shape after being placed in the annular groove 136 to allow the guide wire to pass through, and absorb and swell to form a physical barrier when blood passes through.

[0035] In some embodiments, the inner tube 132 is also provided with a flow monitoring component. The flow monitoring component is located at one end of the inner tube 132 close to the hemostasis component 140 to monitor the blood flow rate. When the flow monitoring component detects abnormal blood flow, a prompt may be issued, thereby reminding the operator to perform relevant hemostasis operations. For example, physiological saline may be injected into the hollow channel 135 to expand the inner tube 132 in advance to form a physical barrier to block the blood flow. Of course, a liquid bag may also be placed in the inner tube 132. When the flow monitoring component detects that the flow rate is greater than a predetermined value, the liquid bag may quickly release sterile physiological saline to expand the inner tube 132, thereby achieving rapid hemostasis and improving hemostasis efficiency.

[0036] Please continue reading Figure 4 , Figure 4 It is a schematic cross-sectional structure diagram of a hemostatic component of a vascular suturing device according to an embodiment of the present application.

[0037] In some embodiments, the hemostatic member 140 includes a mounting ring 141 and a hemostatic valve core 142. The mounting ring 141 is embedded in the annular groove 136. The hemostatic valve core 142 is disposed in the mounting ring 141. The hemostatic valve core 142 allows a guide wire to pass through, and the hemostatic valve core 142 keeps the hollow channel 135 in a closed state.

[0038] Specifically, the hemostatic valve core 142 includes a plurality of leaflets 1421, which are arranged in a circular array in the mounting ring 141. One end of the leaflet 1421 is connected to the inner wall of the mounting ring 141, and the other end extends toward the center of the mounting ring 141. Adjacent leaflets 1421 overlap each other to form a seal in the hollow channel 135. When the guide wire passes through the hemostatic member 140, the resilience of the plurality of leaflets 1421 makes it close to the guide wire. The middle part of the plurality of leaflets 1421 can be deformed to allow the guide wire to pass through, and its resilience can be close to the guide wire to block the blood flow.

[0039] Among them, multiple leaflets 1421 can form a state of being arched toward the guide wire outlet 134. When the guide wire passes through the hollow channel 135 from the port 133 and contacts the hemostatic valve core 142, the guide wire can more easily push open the leaflets 1421, thereby smoothly passing through the hollow channel 135; and, when the guide wire passes through the hemostatic component 140, the rebound force of the leaflets 1421 can make it easier to stick to the guide wire.

[0040] In order to improve the fit between the leaflets 1421 and the guidewire, the hemostatic valve core 142 may include at least five leaflets 1421, specifically five, six, seven or more leaflets 1421. The leaflets 1421 are made of a flexible material with high resilience.

[0041] Of course, in other embodiments, the hemostatic valve core 142 may also adopt other structures that allow the guide wire to pass through and block the blood flow, which are not listed here one by one.

[0042] It should be noted that the terms "horizontal", "vertical" and the like do not mean that the components are absolutely horizontal or vertical, but can be slightly tilted; the terms "parallel", "vertical" and the like do not mean that the components are absolutely parallel or vertical, but can form a certain angle deviation. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In addition, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the present application is usually placed when used, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0043] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A vascular suture device, characterized in that: include: A suture tube, on which a docking wire group is movably provided; A driving handle connected to one end of the suture tube, the driving handle being provided with a suture needle assembly, the driving handle being used to drive the docking wire assembly to unfold, and to drive the suture needle assembly to dock with the docking wire assembly; An introduction tube connected to the other end of the suture tube, the introduction tube having a port at one end away from the suture tube, a guide wire outlet formed on the introduction tube, and a hollow channel communicating with the port and the guide wire outlet; The hemostatic element is arranged in the hollow channel.

2. The vascular suture device according to claim 1, characterized in that: The introduction tube comprises: An outer tube, the outer tube is connected to the suture tube, the outer tube is formed with the port at one end away from the suture tube, the outer tube is also formed with a guide wire outlet, and the outer tube is also formed with a hollow channel connecting the port and the guide wire outlet; an annular groove is also formed in the outer tube, and the annular groove is communicated with the hollow channel; An inner tube, embedded in the annular groove, wherein the inner tube is hollow; Wherein, the hemostatic element is embedded in the annular groove and is located between the inner tube and the port.

3. The vascular suture device according to claim 2, characterized in that: The hemostatic device comprises: A mounting ring, embedded in the annular groove; A hemostatic valve core is arranged in the mounting ring, the guide wire can pass through the hemostatic valve core, and the hemostatic valve core keeps the hollow channel in a closed state.

4. The vascular suture device according to claim 3, characterized in that: The hemostatic valve core includes a plurality of leaflets, which are arranged in a circular array in the mounting ring, and adjacent leaflets overlap each other to form a closure in the hollow channel; when the guide wire passes through the hemostatic component, the resilience of the plurality of leaflets makes it close to the guide wire.

5. The vascular suture device according to claim 2, characterized in that: The inner tube is made of expandable material and can absorb liquid and expand to block the hollow channel.

6. The vascular suture device according to claim 2, characterized in that: A flow monitoring component is also arranged in the inner tube. The flow monitoring component is located at one end of the inner tube close to the hemostatic component to monitor the blood flow.

7. The vascular suture device according to claim 1, characterized in that: The suture tube has a receiving groove, and the docking line group includes: A foot wing is rotatably disposed on the suture tube, and the driving handle drives the foot wing to rotate so that the two ends of the foot wing are rotated out of the receiving groove or received back into the receiving groove, and the two ends of the foot wing are respectively provided with a clamping groove; The connecting wire is wound around the foot wing, and sleeves are respectively arranged at both ends of the connecting wire, and the sleeves are clamped in the clamping slots.

8. The vascular suture device according to claim 7, characterized in that: The driving handle comprises: A handle body connected to one end of the suture tube; A lever is rotatably arranged on the handle body, and the lever is connected to the foot wing through a connecting rod to drive the foot wing to rotate.

9. The vascular suture device according to claim 8, characterized in that: The driving handle also includes a push rod, which is slidably disposed on the handle body, and is connected to the suture needle group. The push rod can drive the suture needle group to approach or move away from the docking line group.

10. The vascular suture device according to claim 7, characterized in that: The suture needle set includes a first suture needle and a second suture needle. The end of the first suture needle is connected to a suture thread, and the first suture needle can drive the suture thread to engage with the corresponding sleeve; the second suture needle is inserted into the knot, and the second suture needle is engaged with the corresponding sleeve.

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