Blood vessel blocking forceps

Abstract

The utility model provides a pair of blood vessel blocking forceps, which relates to the field of medical instruments and comprises a first handle, a first forceps head, a second handle, a second forceps head, a guide column component, a transmission rod group, an adjusting column and a locking piece, the first plier head is parallel to the second plier head, and the main body section of the first handle is parallel to the main body section of the second handle; the guide column assembly comprises a guide column, a guide column cap and a spring. When the first handle and the second handle are close to each other, the spring is compressed; the locking piece is slidably mounted on the adjusting column in the axial direction of the adjusting column, and the locking piece can rotate relative to the adjusting column so as to lock or unlock the relative position of the adjusting column and the first handle main body section; the transmission rod group is arranged between the first handle and the second handle. The blood vessel blocking forceps at least solve the technical problems that when a V-shaped opening of an existing blood vessel blocking forceps is used for clamping, blood is prone to leaking, and the opening size of a forceps head of the existing blood vessel blocking forceps cannot be adjusted freely.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of medical apparatus and instruments, especially to a blood vessel blocking forceps. BACKGROUND

[0002] Before blood vessel suturing operation (blood vessel and blood vessel anastomosis or blood vessel and artificial blood vessel anastomosis) or blood vessel disconnection, blood vessel needs to be blocked to prevent blood leakage and blood surge during blood vessel suturing or disconnection.

[0003] The prior art mainly blocks blood vessel through blood vessel blocking forceps, the blood vessel blocking forceps include mutually articulated left accessory and right accessory, the left accessory includes mutually connected left forceps head and left forceps handle, the right accessory includes mutually connected right forceps head and right forceps handle, the locking rack extending towards the right forceps handle is equipped on the left forceps handle, the locking rack extending towards the left forceps handle is equipped on the right forceps handle, when using, the blood vessel is clamped through the left forceps head and the right forceps head, and the locking rack of the left forceps handle and the locking rack of the right forceps handle are mutually overlapped and engaged to lock the forceps handle.

[0004] The prior art blood vessel blocking forceps mainly have the following defects:

[0005] ①The opening and closing form of the left and right two forceps heads is V-shaped cross opening and closing, and blood leakage is prone to occur at the position far away from the intersection point of the two forceps heads after the blood vessel is clamped;

[0006] ②The final opening angle of the left and right two forceps heads depends on the thickness of the blood vessel when being clamped, and this size is an uncertain size, which can only be determined according to the doctor's hand feeling during operation, and the prior art locks the forceps handle through the locking rack of the left forceps handle and the locking rack of the right forceps handle, but the adjacent tooth spacing of the locking rack is fixed, and the opening distance of the forceps head cannot be arbitrarily adjusted during operation, that is, the prior art blood vessel blocking forceps cannot adapt to the superimposed thickness after various blood vessels are closed, which may cause the situation of being too tight or too loose during blood vessel blocking, and further cause blood vessel wall damage or blood leakage;

[0007] ③The blood vessel is a soft tube body, which will be deformed during clamping, and if the forceps head cannot swing with the blood vessel during clamping, the blood vessel cannot be completely clamped;

[0008] ④The two forceps heads of the prior art blood vessel blocking forceps are mostly metal toothed structures, which can easily cause damage to the blood vessel during clamping. UTILITY MODEL CONTENTS

[0009] The utility model aims at providing a blood vessel blocking forceps to alleviate at least one of the above technical problems in the prior art.

[0010] To achieve the above-mentioned purpose, the utility model embodiment adopts the following technical scheme:

[0011] The utility model discloses an embodiment provides a kind of blood vessel blocking forceps, including first handle, first jaw, second handle and second jaw;The first handle and the second handle respectively include the main body section of each and the front end section integrally connected to the front end of the main body section;The rear end of the first jaw is connected to the front end of the front end section of the first handle, and the rear end of the second jaw is connected to the front end of the front end section of the second handle;

[0012] The first jaw and the second jaw are parallel to each other, and the main body section of the first handle and the main body section of the second handle are parallel to each other.

[0013] The blood vessel blocking forceps further include a guide post assembly, a transmission rod set, an adjusting column and a locking member.

[0014] The guide post assembly includes a guide post, a guide post cap and a spring. The front end of the main body section of the first handle is provided with a guide post mounting through hole that penetrates radially. The side surface of the main body section of the second handle facing the first handle is provided with a guide post mounting blind hole corresponding to the guide post mounting through hole. The guide post passes through and is slidingly installed in the guide post mounting through hole. The first end of the guide post is inserted into the guide post mounting blind hole. The second end of the guide post is located on the side of the first handle away from the second handle. The guide post cap is sleeved on the outside of the second end of the guide post. The spring is sleeved on the outside of the part of the guide post between the first handle and the second handle. When the first handle and the second handle move towards each other, the spring is compressed.

[0015] The rear end of the main body section of the first handle is provided with an adjusting column mounting through hole that penetrates radially through the main body section of the first handle. The adjusting column passes through and is slidingly installed in the adjusting column mounting through hole. The first end of the adjusting column is fixedly connected to the main body section of the second handle. The second end of the adjusting column is located on the side of the first handle away from the second handle. The locking member is slidingly installed in the adjusting column along the axial direction of the adjusting column. The locking member can rotate relative to the adjusting column to lock or unlock the relative position of the adjusting column and the first handle.

[0016] The transmission rod set is arranged between the first handle and the second handle and includes a first transmission rod and a second transmission rod that are X-shaped and cross-linked at the cross-over position. The front end of the first transmission rod is hingedly connected to the main body section of the first handle. The rear end is slidingly connected to the main body section of the second handle along the axial direction of the main body section of the second handle. The front end of the second transmission rod is hingedly connected to the main body section of the second handle. The rear end is slidingly connected to the main body section of the first handle along the axial direction of the main body section of the first handle.

[0017] The blood vessel blocking forceps provided by the embodiment can at least achieve the following beneficial effects:

[0018] In the embodiment, the first jaw and the second jaw are parallel to each other, so that the two ends of the blood vessel in the cross section are clamped to the same extent when the blood vessel is clamped, avoiding the problem that the blood vessel far from the handle side cannot be completely clamped and blood leakage occurs; in addition, the embodiment can realize the locking function under any opening size of the two jaws by providing the adjusting column and the locking member, avoiding the situation that the blood vessel is clamped too loosely or too tightly, further reducing the risk of blood leakage, and avoiding unnecessary damage to the blood vessel caused by clamping too tightly.

[0019] Optionally, a locking member sliding channel extending along the axial direction of the adjusting column is arranged at the position close to the second end of the adjusting column. The locking member comprises a locking member body and a driving portion fixedly connected with the locking member body; at least part of the locking member body is inserted and slidably installed inside the locking member sliding channel, and the locking member body can rotate relative to the adjusting column to be in interference fit with the side wall of the locking member sliding channel in the first rotating position, so as to lock the relative position of the adjusting column and the main body section of the first handle, and in the second rotating position, the locking member body is in clearance fit with the locking member sliding channel, so as to unlock the relative position of the adjusting column and the main body section of the first handle; the driving portion is located outside the locking member sliding channel, and is used to drive the locking member body to rotate relative to the locking member sliding channel.

[0020] Further optionally, the locking member sliding channel is a long through hole penetrating through the adjusting column along the radial direction of the adjusting column; the locking member body comprises a first cylindrical body, a middle eccentric shaft rod and a second cylindrical body which have the same length and are connected in sequence; the middle eccentric shaft rod penetrates through the long through hole, and the middle eccentric shaft rod can rotate relative to the adjusting column to switch between the first rotating position and the second rotating position.

[0021] Optionally, the main body section of the first handle and the main body section of the second handle are respectively provided with a transmission rod sliding channel extending along the axial direction of each handle; the rear end of the first transmission rod is provided with a first protruding portion which is inserted and slidably installed in the transmission rod sliding channel of the second handle; the rear end of the second transmission rod is provided with a second protruding portion which is inserted and slidably installed in the transmission rod sliding channel of the first handle.

[0022] Further optionally, the transmission rod sliding channel of the first handle penetrates through the main body section of the first handle along the radial direction of the main body section of the first handle; the transmission rod sliding channel of the second handle penetrates through the main body section of the second handle along the radial direction of the main body section of the second handle.

[0023] Optionally, the front end section of the first handle is bent towards the direction of the second handle; the front end section of the second handle is bent towards the direction of the first handle.

[0024] Optionally, one of the first pliers head and the second pliers head is a movable pliers head rotatably mounted on the corresponding handle, and the other is a fixed pliers head fixedly connected to the corresponding handle.

[0025] Optionally, the movable pliers head is mounted to the corresponding handle by a pin. Specifically, the rear end of the movable pliers head has a rearwardly extending mounting post, the rear end of the mounting post has a radially outwardly protruding limiting flange, and the outer circumferential surface of the mounting post has a C-shaped limiting groove extending circumferentially along the mounting post; the front end face of the front end section of the handle corresponding to the movable pliers head has a stepped limiting hole corresponding to the mounting post, and the side of the front end section of the handle also has a pin hole communicating with the stepped limiting hole; the mounting post is installed in the stepped limiting hole, the pin passes through the pin hole and is inserted into the C-shaped limiting groove, and the mounting post can rotate around the pin along the C-shaped limiting groove.

[0026] Optionally, the first pliers and the second pliers each include a pliers body and at least one clamping bar mounted on the pliers body; the clamping bar is made of a polymer material; the inner surface of the pliers body is the side surface of each pliers body facing the other pliers body, and the clamping bar is disposed on the inner surface of the corresponding pliers body.

[0027] Optionally, the inner surface of the plier head body is provided with at least one mounting groove extending along the axial direction of the plier head body, and the middle part of the plier head body is provided with a shaft hole that radially penetrates the plier head body, and the mounting groove communicates with the shaft hole; one side of the clamping bar is provided with a connecting part, and the connecting part is provided with a clamping bar mounting hole; each clamping bar is embedded in the mounting groove in a corresponding manner, the connecting part extends into the shaft hole, and the rotating shaft passes through the shaft hole and the clamping bar mounting hole to hinge the clamping bar to the plier head body. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 A schematic diagram of the overall structure of the vascular occlusion clamp in the open state provided in an embodiment of this utility model;

[0030] Figure 2 This is a front sectional view of the overall structure of the vascular occlusion clamp in the open state provided in an embodiment of the present invention;

[0031] Figure 3 The overall structure schematic diagram of the blood vessel blocking forceps in the clamping state is provided for the embodiment of the utility model;

[0032] Figure 4 The optional structure of the locking member in the embodiment of the utility model is shown in the axonometric drawing;

[0033] Figure 5 The side view of the locking member is shown in the drawing; Figure 4 The side view of the locking member is shown in the drawing;

[0034] Figure 6 The combination structure schematic diagram of the locking member and the adjusting column when the locking member is in the second rotating station is provided for the embodiment of the utility model;

[0035] Figure 7 The combination structure partial sectional view of the locking member, the adjusting column and the first handle main section when the locking member is in the first rotating station is provided for the embodiment of the utility model;

[0036] Figure 8 The assembly position relation schematic diagram of the movable forceps head and the pin is provided for the embodiment of the utility model;

[0037] Figure 9 The overall structure sectional view of the handle corresponding to the movable forceps head is provided for the embodiment of the utility model;

[0038] Figure 10 The assembly structure sectional view of the movable forceps head and the corresponding handle front end section is provided for the embodiment of the utility model;

[0039] Figure 11 The assembly structure sectional view of the fixed forceps head and the corresponding handle is provided for the embodiment of the utility model;

[0040] Figure 12 The overall structure schematic diagram of the movable forceps head is provided for the embodiment of the utility model;

[0041] Figure 13 The overall structure schematic diagram of the movable forceps head is provided for the embodiment of the utility model; Figure 12 The overall structure schematic diagram of the movable forceps head is provided for the embodiment of the utility model;

[0042] Icon: 110-first handle; 101-body section; 102-front end section; 1021-step limiting hole; 1022-pin hole; 111-guide post installation through hole; 112-adjusting column installation through hole; 120-second handle; 121-guide post installation blind hole; 130-first jaw; 140-second jaw; 1-guide post assembly; 11-guide post; 12-guide post cap; 13-spring; 2-transmission rod group; 20-transmission rod slide; 21-first transmission rod; 211-first protruding part; 22-second transmission rod; 221-second protruding part; 3-adjusting column; 31-locking piece slide; 4-locking piece; 41-locking piece body; 411-first cylinder; 412-middle eccentric shaft; 413-second cylinder; 42-driving part; 5-jaw body; 501-installation groove; 502-shaft hole; 51-installation column; 511-limiting flange; 512-C-shaped limiting groove; 513-pin; 6-clamping strip; 61-connection part; 611-clamping strip installation hole; 7-rotation shaft. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0045] It should be noted that: similar reference numbers and letters represent similar items in the drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0046] In the description of the present application, it should be noted that:

[0047] Unless otherwise explicitly specified and limited, the terms "provided", "installed", "connected" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] The terms “front,” “rear,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this utility model is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] The terms “first”, “second”, etc. are used only for distinguishing descriptions and do not indicate totality or relative position in time and / or space, nor should they be construed as indicating or implying relative importance.

[0050] The following describes some embodiments of the present invention in detail with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and optional embodiments can be combined with each other.

[0051] This embodiment provides a vascular occlusion clamp, as described in the following example. Figures 1 to 3 The vascular occlusion forceps includes a first handle 110, a first forceps head 130, a second handle 120, and a second forceps head 140. The first handle 110 and the second handle 120 each include a main body segment 101 and a front end segment 102 integrally connected to the front end of the main body segment 101. The rear end of the first forceps head 130 is connected to the front end of the front end segment 102 of the first handle 110, and the rear end of the second forceps head 140 is connected to the front end of the front end segment 102 of the second handle 120.

[0052] Compared with the prior art, the vascular occlusion clamp provided in this embodiment specifically:

[0053] The first clamp head 130 and the second clamp head 140 are parallel to each other, and the main body section 101 of the first handle 110 and the main body section 101 of the second handle 120 are parallel to each other. This vascular occlusion forceps also includes a guide post assembly 1, a transmission rod assembly 2, an adjusting post 3, and a locking element 4; specifically, the guide post assembly 1 includes a guide post 11, a guide post cap 12, and a spring 13; see reference... Figure 9 The front end of the main body section 101 of the first handle 110 is provided with a radially penetrating guide post mounting through hole 111, as shown in the reference. Figure 11 The main body section 101 of the second handle 120 has a blind hole 121 for mounting a guide post on the side facing the first handle 110, corresponding to the guide post mounting through hole 111; combined with Figures 1 to 3The guide post 11 passes through and is slidably installed in the guide post mounting through hole 111. The first end of the guide post 11 is inserted into the guide post mounting blind hole 121. The second end of the guide post 11 is located on the side of the first handle 110 away from the second handle 120. The guide post cap 12 is fitted on the outside of the second end of the guide post 11 to prevent the guide post 11 from slipping out of the guide post mounting through hole 111. The spring 13 is fitted on the outside of the part of the guide post 11 located between the first handle 110 and the second handle 120. When the first handle 110 and the second handle 120 approach each other, the spring 13 is compressed.

[0054] Reference Figure 9 The rear end of the main body section 101 of the first handle 110 is provided with an adjustment post mounting through hole 112 that radially penetrates the main body section 101 of the first handle 110. The adjustment post 3 passes through and is slidably installed in the adjustment post mounting through hole 112. The first end of the adjustment post 3 is fixedly connected to the main body section 101 of the second handle 120 (the fixing method includes, but is not limited to, providing a groove on the side of the main body section 101 of the second handle 120 facing the main body section 101 of the first handle 110, inserting the first end of the adjustment post 3 into the groove and interfering with it, or using electric welding, bonding or other specific fixing connection methods). The second end of the adjustment post 3 is located on the side of the first handle 110 away from the second handle 120. The locking member 4 is slidably installed on the adjustment post 3 along the axial direction of the adjustment post 3, and the locking member 4 can rotate relative to the adjustment post 3 to lock or unlock the relative position of the adjustment post 3 and the first handle 110.

[0055] The transmission rod assembly 2 is located between the first handle 110 and the second handle 120, and includes a first transmission rod 21 and a second transmission rod 22 that are X-shaped and hinged to each other at the intersection position; the front end of the first transmission rod 21 is hinged to the main body section 101 of the first handle 110, and the rear end is slidably connected to the main body section 101 of the second handle 120 along the axial direction of the main body section 101 of the second handle 120; the front end of the second transmission rod 22 is hinged to the main body section 101 of the second handle 120, and the rear end is slidably connected to the main body section 101 of the first handle 110 along the axial direction of the main body section 101 of the first handle 110.

[0056] In use, the first clamp 130 and the second clamp 140 are used to clamp the blood vessel. The main body sections 101 of the first handle 110 and the second handle 120 are held facing each other. The two handles slide closer to each other along the guide post 11 and the adjusting post 3. During this process, the spring 13 is compressed, and the rear ends of the two transmission rods of the transmission rod assembly 2 slide backward along the main body sections 101 of their respective handles until the parallel first clamp 130 and second clamp 140 clamp the blood vessel. Then, the locking member 4 is rotated relative to the adjusting post 3 to lock the relative position of the adjusting post 3 and the first handle 110. When unlocking is required, the locking member 4 is rotated in the opposite direction. The first handle 110 and the second handle 120 move in opposite directions under the rebound force of the spring 13 to open the first clamp 130 and the second clamp 140.

[0057] In the vascular occlusion forceps provided in this embodiment, the first clamp head 130 and the second clamp head 140 are parallel to each other, which can make the two ends of the cross-section of the blood vessel clamped to the same degree when the blood vessel is clamped, avoiding the problem of blood leakage caused by the blood vessel on the side away from the handle not being completely clamped; in addition, by setting the above-mentioned adjusting post 3 and locking member 4, the locking function can be realized with any opening size of the two clamp heads, avoiding the situation of the blood vessel being clamped too loosely or too tightly, further reducing the risk of blood leakage, and at the same time, avoiding unnecessary damage to the blood vessel caused by clamping too tightly.

[0058] In this embodiment, the locking element 4 and the adjusting column 3 have multiple optional mating relationships, and the locking element 4 also has multiple optional design structures. Preferably, referring to... Figure 6 , Figure 7 , combined Figures 1 to 3 A locking slide 31 extending axially along the adjusting column 3 is provided near the second end of the adjusting column 3. The locking element 4 includes a locking element body 41 and a driving part 42 fixedly connected to the locking element body 41; at least part of the locking element body 41 is inserted into and slidably installed inside the locking element slide 31, and the locking element body 41 can rotate relative to the adjusting column 3, so as to have an interference fit with the side wall of the locking element slide 31 in the first rotation position, thereby locking the relative position of the adjusting column 3 and the main body segment 101 of the first handle 110, and in the second rotation position, to have a clearance fit with the locking element slide 31, thereby unlocking the relative position of the adjusting column 3 and the main body segment 101 of the first handle 110; the driving part 42 is located outside the locking element slide 31 and is used to drive the locking element body 41 to rotate relative to the locking element slide 31, and the specific structural form of the driving part 42 can be as follows. Figures 1 to 7 The diagram shows a curved pressure handle structure. Pressing down or lifting the pressure handle structure will rotate the locking body 41, thus providing the advantage of convenient operation. Furthermore, forward rotation and / or reverse rotation markings can be provided on the outer surface of the locking body 41 to further guide the operator to quickly and accurately switch the rotation position of the locking body 41.

[0059] The locking slide 31 can be a long groove or a long hole structure. Optionally, the locking slide 31 is a long through hole that runs radially through the adjusting column 3. The locking body 41 includes a first cylinder 411, a central eccentric shaft 412, and a second cylinder 413 connected in sequence along the same length direction (the specific connection method includes, but is not limited to, such as...). Figure 4 and Figure 5 As shown, the two ends of the central eccentric shaft 412 are respectively inserted into and bonded, interference-fitted, or otherwise fixedly connected to the first cylinder 411 and the second cylinder 413, forming a dumbbell-like structure; the central eccentric shaft 412 passes through a long through hole and can be driven to rotate relative to the adjusting column 3 to switch between the first rotation position and the second rotation position. The cross-section of the central eccentric shaft 412 can be as follows: Figure 4 and Figure 5 The cross-section is elliptical, with the minor diameter less than or equal to the width of the long through hole on the adjusting column 3, and the major diameter greater than the width of the long through hole on the adjusting column 3, thereby enabling the switching between two rotating positions. In other optional embodiments, the structure of the locking component body 41 may not be like this. For example, when the locking component slide 31 is a long groove structure, the locking component body 41 may be configured to include only the above-mentioned eccentric shaft structure and the locking component body 41 may be fully embedded in the long groove. The eccentric shaft structure is driven to rotate by the driving unit 42 to realize the switching of the working position state.

[0060] In addition, in this embodiment, optionally, the main body section 101 of the first handle 110 and the main body section 101 of the second handle 120 are respectively provided with transmission rod slides 20 extending along their respective axial directions; the rear end of the first transmission rod 21 is provided with a first protrusion 211 (fixed or integrally connected), the first protrusion 211 is inserted into and slidably installed in the transmission rod slide 20 of the second handle 120; the rear end of the second transmission rod 22 is provided with a second protrusion 221 (fixed or integrally connected), the second protrusion 221 is inserted into and slidably installed in the transmission rod slide 20 of the first handle 110, thereby improving transmission stability.

[0061] Further optionally, the transmission rod slide 20 of the first handle 110 extends radially through the main body section 101 of the first handle 110; the transmission rod slide 20 of the second handle 120 extends radially through the main body section 101 of the second handle 120.

[0062] In addition, in this embodiment, optionally, the front end segment 102 of the first handle 110 is bent toward the direction of the second handle 120; the front end segment 102 of the second handle 120 is bent toward the direction of the first handle 110, so as to make it easier for the operator to perform related operations.

[0063] In addition, in the prior art, blood vessels are soft tubes that will deform during clamping. If the clamp head cannot swing with the blood vessel during clamping, the blood vessel will not be completely clamped. In this embodiment, one of the first clamp head 130 and the second clamp head 140 is set as a movable clamp head that is rotatably installed on the corresponding handle, and the other is set as a fixed clamp head that is fixedly connected to the corresponding handle.

[0064] Reference Figures 8 to 13 , combined Figures 1 to 3 Optionally, the movable pliers head is mounted to the corresponding handle via a pin 513. Specifically, the rear end of the movable pliers head is provided with a rearwardly extending mounting post 51, and the rear end of the mounting post 51 is provided with a radially outwardly protruding limiting flange 511; a C-shaped limiting groove 512 extending circumferentially along the mounting post 51 is provided on the outer circumferential surface of the mounting post 51; the front end face of the front end section 102 of the handle corresponding to the movable pliers head is provided with a stepped limiting hole 1021 corresponding to the mounting post 51, and the side of the front end section 102 of the handle is also provided with a pin hole 1022 communicating with the stepped limiting hole 1021; the mounting post 51 is installed in the stepped limiting hole 1021, and the pin 513 passes through the pin hole 1022 and is inserted into the C-shaped limiting groove 512, so that the mounting post 51 can rotate around the pin 513 along the C-shaped limiting groove 512. In this way, the movable clamp head can rotate relative to its corresponding connected handle (the rotation is constrained within a certain range by the pin 513) to swing in accordance with the shape changes of the blood vessel. During the swing, it will always be in contact with the blood vessel due to the influence of the intravascular pressure, thus achieving the function of completely clamping the blood vessel.

[0065] In addition, to minimize damage to blood vessels by the clamps, in this embodiment, the first clamp 130 and the second clamp 140 may optionally include their respective clamp bodies 5 and at least one clamping strip 6 installed on the clamp body 5. The clamping strip 6 is made of a polymer material, which can reduce damage to blood vessels compared to metal materials. The inner surface of the clamp body 5 is the side of each clamp body 5 facing the other clamp, and the clamping strip 6 is disposed on the inner surface of the corresponding clamp body 5.

[0066] Optionally, the inner surface of the clamp head body 5 is provided with at least one mounting groove 501 extending axially along the clamp head body 5, and the middle part of the clamp head body 5 is provided with a shaft hole 502 that radially penetrates the clamp head body 5, and the mounting groove 501 and the shaft hole 502 are connected; one side of the clamping bar 6 is provided with a connecting part 61, and the connecting part 61 is provided with a clamping bar mounting hole 611; each clamping bar 6 is embedded in the mounting groove 501 in a corresponding manner, the connecting part 61 extends into the shaft hole 502, and the rotating shaft 7 passes through the shaft hole 502 and the clamping bar mounting hole 611 to hinge the clamping bar 6 to the clamp head body 5, so that each clamping bar 6 can also swing with the blood vessel, thereby better clamping the blood vessel.

[0067] Finally, it should be noted that the above embodiments and optional implementations in this specification are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing optional implementations, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. In addition, it is emphasized again that, in the absence of conflict, the features of the embodiments and optional implementations in the embodiments in this specification can be combined with each other.

Claims

1. A vascular clamp, comprising a first handle (110), a first clamp head (130), a second handle (120) and a second clamp head (140); the first handle (110) and the second handle (120) each comprise a main body section (101) and a front end section (102) integrally connected to the front end of the main body section (101); the rear end of the first clamp head (130) is connected to the front end of the front end section (102) of the first handle (110), and the rear end of the second clamp head (140) is connected to the front end of the front end section (102) of the second handle (120); the first clamp head (130) and the second clamp head (140) are parallel to each other, and the main body section (101) of the first handle (110) and the main body section (101) of the second handle (120) are parallel to each other; the vascular clamp further comprises a guide column assembly (1), a transmission rod group (2), an adjusting column (3) and a locking member (4); the guide column assembly (1) comprises a guide column (11), a guide column cap (12) and a spring (13); the front end of the main body section (101) of the first handle (110) is provided with a guide column mounting through hole (111) extending in the radial direction, and the side surface of the main body section (101) of the second handle (120) facing the first handle (110) is provided with a guide column mounting blind hole (121) corresponding to the guide column mounting through hole (111); the guide column (11) is installed through and slides in the guide column mounting through hole (111), the first end of the guide column (11) is inserted into the guide column mounting blind hole (121), the second end of the guide column (11) is located on the side of the first handle (110) away from the second handle (120), and the guide column cap (12) is sleeved on the outside of the second end of the guide column (11); the spring (13) is sleeved on the outside of the part of the guide column (11) between the first handle (110) and the second handle (120); when the first handle (110) and the second handle (120) are close to each other, the spring (13) is compressed; the rear end of the main body section (101) of the first handle (110) is provided with an adjusting column mounting through hole (112) extending in the radial direction through the main body section (101) of the first handle (110), the adjusting column (3) is installed through and slides in the adjusting column mounting through hole (112), the first end of the adjusting column (3) is fixedly connected to the main body section (101) of the second handle (120), and the second end of the adjusting column (3) is located on the side of the first handle (110) away from the second handle (120); the locking member (4) is slidably installed on the adjusting column (3) along the axial direction of the adjusting column (3), and the locking member (4) can rotate relative to the adjusting column (3) to lock or unlock the relative position of the adjusting column (3) and the first handle (110). characterized in that ​ ​ ​ ​ The transmission rod set (2) is arranged between the first handle (110) and the second handle (120), and comprises a first transmission rod (21) and a second transmission rod (22) which are X-shaped and cross-arranged and hinged at the cross positions; the front end of the first transmission rod (21) is hinged to the main body section (101) of the first handle (110), and the rear end is slidingly connected to the main body section (101) of the second handle (120) along the axial direction of the main body section (101) of the second handle (120); the front end of the second transmission rod (22) is hinged to the main body section (101) of the second handle (120), and the rear end is slidingly connected to the main body section (101) of the first handle (110) along the axial direction of the main body section (101) of the first handle (110).

2. The blood vessel blocking forceps according to claim 1, characterized in that: The locking member sliding channel (31) extending along the axial direction of the adjusting column (3) is arranged at the position close to the second end of the adjusting column (3); The locking member (4) comprises a locking member main body (41) and a driving portion (42) fixedly connected with the locking member main body (41); At least part of the locking member main body (41) is inserted and slidingly arranged inside the locking member sliding channel (31), and the locking member main body (41) can rotate relative to the adjusting column (3) to be in interference fit with the side wall of the locking member sliding channel (31) in the first rotating position, so as to lock the relative position of the adjusting column (3) and the main body section (101) of the first handle (110), and in the second rotating position, the locking member main body (41) is in clearance fit with the locking member sliding channel (31), so as to unlock the relative position of the adjusting column (3) and the main body section (101) of the first handle (110); The driving portion (42) is located outside the locking member sliding channel (31) and is used to drive the locking member main body (41) to rotate relative to the locking member sliding channel (31).

3. The vessel sealing forceps according to Claim 2, wherein: The locking member sliding channel (31) is a long through hole penetrating through the adjusting column (3) along the radial direction of the adjusting column (3); The locking member main body (41) comprises a first cylindrical body (411), a middle eccentric shaft (412) and a second cylindrical body (413) which are connected in sequence and have the same length direction; The middle eccentric shaft (412) penetrates through the long through hole, and the middle eccentric shaft (412) can rotate relative to the adjusting column (3) to switch between the first rotating position and the second rotating position.

4. The vessel sealing forceps according to Claim 1, wherein: The main body section (101) of the first handle (110) and the main body section (101) of the second handle (120) are respectively provided with a transmission rod sliding channel (20) extending along the axial direction thereof; The rear end of the first transmission rod (21) is provided with a first protruding portion (211) which is inserted and slidingly arranged in the transmission rod sliding channel (20) of the second handle (120); the rear end of the second transmission rod (22) is provided with a second protruding portion (221) which is inserted and slidingly arranged in the transmission rod sliding channel (20) of the first handle (110).

5. The vessel sealing forceps according to Claim 4, wherein: The transmission rod slide channel (20) of the first handle (110) penetrates the main body section (101) of the first handle (110) along the radial direction of the main body section (101) of the first handle (110); the transmission rod slide channel (20) of the second handle (120) penetrates the main body section (101) of the second handle (120) along the radial direction of the main body section (101) of the second handle (120).

6. The vessel sealing forceps according to Claim 1, wherein: The front end section (102) of the first handle (110) is bent towards the direction of the second handle (120); the front end section (102) of the second handle (120) is bent towards the direction of the first handle (110).

7. The vessel sealing forceps according to Claim 1, wherein: One of the first jaw (130) and the second jaw (140) is a movable jaw rotatably mounted on the corresponding handle, and the other is a fixed jaw fixedly connected to the corresponding handle.

8. The vessel sealing forceps according to of claim 7, wherein: The movable jaw is mounted on the corresponding handle by a pin (513); The rear end of the movable jaw is provided with a mounting column (51) extending rearward, a limiting flange (511) protruding radially outward is arranged at the rear end of the mounting column (51), and a C-shaped limiting groove (512) extending circumferentially along the mounting column (51) is arranged on the outer circumferential surface of the mounting column (51); The front end surface of the front end section (102) of the handle corresponding to the movable jaw is provided with a stepped limiting hole (1021) corresponding to the mounting column (51), and the side surface of the front end section (102) of the handle is further provided with a pin hole (1022) in communication with the stepped limiting hole (1021); The mounting column (51) is mounted in the stepped limiting hole (1021), the pin (513) is inserted into the C-shaped limiting groove (512) through the pin hole (1022), and the mounting column (51) can rotate along the C-shaped limiting groove (512) around the pin (513).

9. The vessel sealing forceps according to Claim 1, wherein: The first jaw (130) and the second jaw (140) each include a respective jaw main body (5) and at least one clamping strip (6) mounted on the jaw main body (5); The clamping strip (6) is made of a high polymer material; The side surface of each jaw main body (5) facing the other jaw is the inner side surface of the jaw main body (5), and the clamping strip (6) is arranged on the inner side surface of the corresponding jaw main body (5).

10. The vessel sealing forceps according to of Claim 9, wherein: The inner side surface of the jaw main body (5) is provided with at least one mounting groove (501) extending axially along the jaw main body (5), and the middle part of the jaw main body (5) is provided with an axial hole (502) penetrating the jaw main body (5) in the radial direction, and the mounting groove (501) and the axial hole (502) are in communication. One side of the clamping bar (6) is provided with a connecting part (61), and the connecting part (61) is provided with a clamping bar mounting hole (611); each clamping bar (6) is embedded in each mounting groove (501) one by one, the connecting part (61) extends to the shaft hole (502), and the shaft (7) penetrates the shaft hole (502) and the clamping bar mounting hole (611), so that the clamping bar (6) is hinged to the plier head body (5).

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