Connecting seat body and interventional conveying sheath

Abstract

The utility model relates to the technical field of medical instruments, in particular to a connecting seat body and an interventional conveying sheath. The connecting seat body comprises a first connecting body and a second connecting body, one end of the first connecting body is connected with the connecting piece, and a through hole is formed in the first connecting body; the second connecting body is arranged on the side face of the first connecting body, and the interior of the second connecting body is communicated with the through hole; the reinforcing piece is arranged between the first connecting body and the second connecting body; the two tail ends of the first connecting piece and the tail end of the second connecting piece are provided with a first quick connecting structure, a second quick connecting structure and a third quick connecting structure respectively. The connecting seat body is connected with the first quick connecting piece in a clamping mode, it is guaranteed that the first quick connecting piece can be quickly installed on the connecting opening of the connecting seat body, the stability of connection between the first quick connecting piece and the connecting seat body can be guaranteed through the clamping structure, and the stability during operation is effectively guaranteed; and the operation efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a connecting seat body and an interventional delivery sheath. Background Art

[0002] Interventional therapy is a minimally invasive treatment using modern high-tech means. Under the guidance of medical imaging equipment, special catheters, guidewires and other precision medical devices are introduced into the human body to diagnose and locally treat lesions in the human body. Interventional surgery causes little trauma to the human body, is less invasive, has a fast recovery and good effect. It is a medical technology that has rapidly emerged and been widely promoted in recent years.

[0003] At present, interventional surgery usually requires the use of interventional diagnostic sheaths (such as guide catheters, delivery sheaths, guide sheaths, etc.) to establish a channel between the lesion site in the patient's body and the external operating end, so as to introduce various diagnostic and therapeutic instruments, drugs, implantable devices, etc. to the patient's lesion site, so as to avoid the use of surgical operations to reach the lesion site. Interventional diagnostic sheaths are generally composed of a tube body and a handle. The tube body is usually long and has an inner cavity used as a channel. The tube body has a distal end and a proximal end. The distal end can easily enter the human body cavity (such as a blood vessel), and the proximal end is used to connect the handle for professional medical staff to use.

[0004] In the process of realizing the present invention, the inventors of the present invention found that: currently, the assembly of the interventional delivery sheath is difficult, the user experience is not good, and the interventional delivery sheath is not easy to connect during operation. Summary of the invention

[0005] In view of the above-mentioned defects of the prior art, the main purpose of the present utility model is to provide a connecting seat body for an interventional delivery sheath, the connecting seat body comprising: a first connecting body, one end of which is connected to a connecting piece and has a through hole inside;

[0006] A second connector is disposed on a side of the first connector and is internally connected to the through hole; and

[0007] A reinforcement member, provided between the first connector and the second connector;

[0008] Wherein, the two ends of the first connector and the end of the second connector are respectively provided with a first quick-connect structure, a second quick-connect structure and a third quick-connect structure; and the first quick-connect structure, the second quick-connect structure and the third quick-connect structure are respectively connected to the first quick-connect member, the second quick-connect member and the third quick-connect member.

[0009] Furthermore, the first quick connector includes a first body, and the first body has a through hole running through the interior;

[0010] The clamping structure is provided at one end of the first body, close to the edge of the through hole, and the clamping structure further includes a clamping member, which cooperates with the first quick-connection structure through the clamping member; and,

[0011] The plugging structure docks with the through hole, and the outer diameter of the plugging structure gradually decreases from the through hole to the other end, and the plugging structure is also provided with an internal thread, and there is a spacing between the outer diameter of the plugging structure and the internal thread.

[0012] Further, the second quick-connection member includes a second body, the second body has a cavity, and the cavity is provided with an internal thread, and one end of the second body far from the opening position is provided with a connection hole.

[0013] Further, at least one limiting protrusion is provided on the inner wall of the connection hole of the second body;

[0014] At least three clamping protrusions are provided at one end of the second body far from the connection hole, and the clamping protrusions are provided at a position close to the edge of the opening of the second body.

[0015] Further, the second quick-connection member is provided with a protruding member, and the protruding member is a protruding structure extending from the edge of the connection hole into the cavity.

[0016] A third aspect discloses an interventional delivery sheath, including: the connection seat body according to any one of the above;

[0017] A hemostasis assembly is provided in the connection seat body, and the hemostasis assembly is threadedly connected to the inner wall of the connection seat body; and,

[0018] A pressing member is provided on the connection hole of the connection seat body for opening or closing the channel of the hemostasis assembly; and,

[0019] A sheath tube is movably connected to one end of the first quick-connection member far from the connection seat body.

[0020] Further, the hemostasis assembly includes a compression member provided in the connector;

[0021] A pressing block, one end of the pressing block is in contact connection with the compression member, and the other end is threadedly connected to the inner wall of the second quick-connection member; and,

[0022] A hemostasis valve member is provided between the pressing block and the second quick-connection member.

[0023] A third aspect discloses an interventional delivery sheath, including: the connection seat body described above;

[0024] A bending adjustment handle is movably connected to one end of the connection seat body far from the connection seat body for adjusting the sheath tube.

[0025] Further, the bending adjustment handle includes: an adjustment main body, with a first connection structure and a second connection structure respectively provided at both ends of the adjustment main body;

[0026] A sliding member, provided on the outer surface of the adjustment main body and capable of making a linear movement on the outer surface of the adjustment main body;

[0027] A connector, provided at one end of the adjustment main body and movably connected to the first connection structure;

[0028] A protective member, provided on the outer surface of the connector; and,

[0029] An adjustment housing, with one end of the adjustment housing provided between the connector and the protective member, and the inner wall threadedly connected to the outer surface of the sliding member.

[0030] Further, the adjustment main body includes a first pipe body, with a first connection structure provided at one end of the first pipe body, and a limiting groove provided on the outer surface of the first pipe body;

[0031] A blocking member, provided at the other end of the first pipe body, and the blocking member is connected to the adjustment housing;

[0032] A second pipe body, provided on the side of the blocking member away from the first pipe body, and the second pipe body communicates with the first pipe body, and a second connection structure is provided at the end of the second pipe body.

[0033] The beneficial effects of the above technical solutions provided by the embodiments of the present invention at least include:

[0034] In the embodiment, a snap connection is provided between the connection seat body and the first quick-connecting member, ensuring that the first quick-connecting member can be quickly installed on the connection port of the connection seat body, and the snap connection structure can ensure the stability of the connection between the first quick-connecting member and the connection seat body, effectively ensuring the stability during operation and effectively improving the operation efficiency.

[0035] In order to connect various functional modules faster, in addition to the connection port connecting the adjustment assembly, the connection seat body is respectively provided with a second quick-connecting member and a third quick-connecting member at the other two connection ports, and at the same time, the two are respectively connected to an expander, an exhaust valve, etc. It is convenient to operate and ensures rich functions.

[0036] Other features and advantages of the present invention will be described in the following description of the specification, and, in part, will be obvious from the description of the specification, or will be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in the written description and the drawings.

[0037] The technical solutions of the present invention will be further described in detail below through the drawings and embodiments. Description of the Drawings

[0038] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw to actual scale.

[0039] Figure 1 It is a schematic diagram of a connecting seat body according to an embodiment of the present invention;

[0040] Figure 2 It is a schematic diagram of an interventional delivery sheath according to an embodiment of the present invention;

[0041] Figure 3 It is the present invention Figure 2 Exploded view of another state;

[0042] Figure 4 It is a schematic diagram of a first quick-connecting member of the present invention;

[0043] Figure 5 It is a schematic diagram of a second quick-connecting member according to an embodiment of the present invention;

[0044] Figure 6 It is a schematic diagram of a second quick-connecting member according to another embodiment of the present invention;

[0045] Figure 7 It is an exploded view of the assembly of the second quick-connecting member of the present invention;

[0046] Figure 8 It is a schematic diagram of an interventional delivery sheath according to another embodiment of the present invention;

[0047] Figure 9 It is an exploded view of a bending adjustment handle according to an embodiment of the present invention.

[0048] Reference numerals:

[0049] 1. Connecting seat body; 10. First connecting body; 11. Second connecting body; 12. Reinforcing member; 13. Second quick-connecting member; 14. First quick-connecting member; 15. Third quick-connecting member; 16. Pressing member; 17. Hemostasis assembly;

[0050] 100. First quick-connecting structure; 101. Second quick-connecting structure; 102. Third quick-connecting structure; 130. Connecting hole; 131. Limiting protrusion; 132. Internal thread; 133. Clamping protrusion; 134. Protruding member; 140. First body; 141. Clamping structure; 142. Inserting structure; 170. Hemostatic valve member; 171. Compressing block; 172. Clamping member; 173. Compressing member;

[0051] 2. Sheath tube; 3. Bending adjustment handle;

[0052] 30. Adjustment main body; 31. Protective part; 32. Adjustment housing; 33. Sliding part; 34. Splicing part;

[0053] 300. First tube body; 301. Second tube body; 302. Stopper; 303. Second connection structure; 304. Limiting groove; 305. First connection structure. Detailed implementation mode

[0054] The embodiments of the technical solution of the present utility model will be described in detail below with reference to the drawings. The following embodiments are only used to illustrate the technical solution of the present utility model more clearly, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0055] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present utility model belongs.

[0056] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 utility model.

[0057] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0058] In this application, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0059] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0060] Please refer to the attached Figure 1 , a connecting seat body 1, which is used to intervene in a delivery sheath. The connecting seat body 1 includes: a first connecting body 10, one end of the first connecting body is connected to a connecting member, and has a through hole inside;

[0061] a second connecting body 11, which is arranged on the side surface of the first connecting body 10 and the through hole is internally communicated therewith; and,

[0062] a reinforcing member 12, which is arranged between the first connecting body 10 and the second connecting body 11;

[0063] Wherein, first quick-connecting structures 100, second quick-connecting structures 101 and third quick-connecting structures 102 are respectively arranged at two ends of the first connecting body and at the end of the second connecting member; and, the first quick-connecting structure 100, the second quick-connecting structure 101 and the third quick-connecting structure 102 are respectively connected to a first quick-connecting member 14, a second quick-connecting member 13 and a third quick-connecting member 15.

[0064] It can be understood that since the current operating handle cannot quickly connect various functional modules when connecting each function, or can only connect a single functional module, there is an inconvenient problem in actual operation. In an embodiment, the connecting seat body 1 is provided with a plurality of connection ports and quick-connecting members. Specifically, the second connecting body 11 is connected to the middle part of the first connecting body 10, and the first connecting body 10 and the second connecting body 11 are internally communicated. At the same time, a reinforcing member 12 is arranged between the first connecting body 10 and the second connecting body 11. The connecting seat body 1 is provided with at least three connection ports. Wherein, first quick-connecting structures 100, second quick-connecting structures 101 and third quick-connecting structures 102 are respectively arranged at two ends of the first connecting body and at the end of the second connecting member; and, the first quick-connecting structure 100, the second quick-connecting structure 101 and the third quick-connecting structure 102 are respectively connected to a first quick-connecting member 14, a second quick-connecting member 13 and a third quick-connecting member 15 for movably connecting other functional components.

[0065] In an embodiment, a snap connection is provided between the connecting seat body 1 and the first quick-connecting member 14 to ensure that the first quick-connecting member 14 can be quickly installed on the connection port of the connecting seat body 1, and the snap connection structure can ensure the stability of the connection between the first quick-connecting member 14 and the connecting seat body 1, effectively ensuring the stability during operation and effectively improving the operation efficiency.

[0066] In the embodiment, the two connection ports of the connecting seat body 1 are respectively provided with a second quick-connecting member 13 and a third quick-connecting member 15.

[0067] It can be understood that, in order to connect various functional modules faster, in addition to the connection port connecting the adjusting assembly, the other two connection ports of the connecting seat body 1 are respectively provided with a second quick-connecting member 13 and a third quick-connecting member 15, and at the same time, they are respectively connected to an expander and an exhaust valve, etc. It is convenient for operation and ensures rich functions.

[0068] Please refer to the appendix Figure 4 In the embodiment, further, the first quick-connecting member 14 includes a first body 140, and the first body 140 has a through hole penetrating through the inside;

[0069] A snap connection structure 141 is provided at one end of the first body 140 and is disposed close to the edge of the through hole, and the snap connection structure 141 further includes a clamping member, which cooperates with the first quick-connection structure 100 through the clamping member; and,

[0070] A plugging structure 142, the plugging structure 142 is docked with the through hole, and the outer diameter of the plugging structure 142 gradually becomes smaller from the through hole to the other end, and the plugging structure 142 is also provided with an internal thread, and there is a spacing between the outer diameter of the plugging structure 142 and the internal thread.

[0071] It can be understood that in the embodiment, the first body 140 is snap-connected to the first quick-connection structure 100 on the first connection body 10 through the snap connection structure 141 and the clamping member, and the sheath tube 2 can be quickly plugged at the other end through the plugging structure 142, or quickly connected through the thread.

[0072] In the embodiment, the detachable structure of the connection between the first quick-connecting member 14 and the connecting seat body 1 can realize the quick disassembly and assembly of the required functional components, such as an adjusting handle or the sheath tube 2, realize the quick assembly and disassembly of the device, facilitate the storage and transportation of the device, and can also realize the quick assembly during use, increase the combination between various functional components, ensure that the intervention delivery sheath forms a suitable delivery sheath under various use environments, and make the applicable range wider.

[0073] Please refer to the appendix Figure 5, Further in the embodiment, the second quick-connecting member 13 includes a second body having an inner cavity, and an internal thread 132 is provided in the inner cavity. One end of the second body away from the opening position is provided with a connection hole 130.

[0074] It can be understood that the second quick-connecting member 13 is threaded with the second quick-connecting structure 101, and then connected to other functional components through the connection hole 130.

[0075] Please refer to the appendix Figure 5 , Further in the embodiment, at least one limiting protrusion 131 is provided on the inner wall of the connection hole 130 of the second body;

[0076] At least three clamping protrusions 133 are provided at one end of the second body away from the connection hole 130, and the clamping protrusions 133 are provided at a position close to the edge of the opening of the second body.

[0077] It can be understood that in order to make the connection between the second quick-connecting member 13 and the first connecting body 10 more stable in the embodiment, when the second quick-connecting member 13 is connected to the first connecting body 10, it further includes a clamping member 172. The clamping member 172 can be clamped with the inner wall of the second quick-connecting member 13. In the embodiment, a clamping protrusion 133 is provided on the inner wall of the second quick-connecting member 13. The clamping protrusion 133 is provided at a position close to the edge of the opening on the inner wall of the second quick-connecting member 13. And in order to ensure the stability of the clamping, in the embodiment, the clamping protrusion 133 is set to at least three, and the clamping cooperation is realized through the clamping protrusion 133 and the clamping member 172.

[0078] A limiting protrusion 131 for guiding and limiting is provided. The limiting protrusion 131 is provided in the connection hole 130 of the second quick-connecting member 13. Specifically, the connection hole 130 is provided on the inner wall of the connection hole 130, and the number of the limiting protrusions 131 is set according to the actual situation.

[0079] Specific embodiments, one embodiment, the second quick-connecting member 13 has three clamping protrusions 133 near the opening position. The three clamping protrusions 133 are evenly arranged along the edge of the opening, and the three clamping protrusions 133 cooperate with the clamping member 172 for clamping, that is, the two ends of the clamping member 172 cooperate respectively, and the clamping protrusion 133 and the connector cooperate to achieve clamping; in another embodiment, the second quick-connecting member 13 has four clamping protrusions 133 near the opening position. The four clamping protrusions 133 are evenly arranged along the edge of the opening, and the four clamping protrusions 133 cooperate with the clamping member 172 for clamping, that is, the two ends of the clamping member 172 cooperate respectively, and the clamping protrusion 133 and the connector cooperate to achieve clamping; in still another embodiment, the second quick-connecting member 13 has five clamping protrusions 133 near the opening position. The five clamping protrusions 133 are evenly arranged along the edge of the opening, and the five clamping protrusions 133 cooperate with the clamping member 172 for clamping, that is, the two ends of the clamping member 172 cooperate respectively, and the clamping protrusion 133 and the connector cooperate to achieve clamping.

[0080] The clamping protrusion 133 is provided with a gradually protruding structure, and the gradually protruding structure is a structure that gradually protrudes from the edge of the opening to one side of the connection hole 130, so that the clamping member 172 can quickly enter the second quick-connecting member 13 during installation. In some embodiments, the clamping protrusion 133 is provided with a structure that gradually inclines and protrudes from the edge of the opening; in other embodiments, the clamping protrusion 133 is provided with a structure that gradually protrudes in an arc from the edge of the opening.

[0081] In some embodiments, the limiting protrusion 131 is provided on the inner wall of the connection hole 130 of the second quick-connecting member 13, and the limiting protrusion 131 is one, and the limiting protrusion 131 is arranged along the axis of the connection hole 130 to ensure that the pressing member 16 moves axially along the connection hole 130; in other embodiments, the limiting protrusion 131 is provided on the inner wall of the connection hole 130 of the second quick-connecting member 13, and the limiting protrusion 131 is two, and the two limiting protrusions 131 are symmetrically arranged, and the limiting protrusion 131 is arranged along the axis of the connection hole 130 to ensure that the pressing member 16 moves axially along the connection hole 130; in still other embodiments, the limiting protrusion 131 is provided on the inner wall of the connection hole 130 of the second quick-connecting member 13, and the limiting protrusion 131 is three, and the three limiting protrusions 131 are evenly arranged, and the limiting protrusion 131 is arranged along the axis of the connection hole 130 to ensure that the pressing member 16 moves axially along the connection hole 130.

[0082] Please refer to the appendix Figure 6, Further in the embodiment, the second quick-connecting member 13 is provided with a protruding member 134, and the protruding member 134 is a protruding structure extending from the edge of the connecting hole 130 towards the inner cavity.

[0083] It can be understood that a protruding member 134 is provided in the inner cavity of the second quick-connecting member 13. The protruding member 134 is provided at the edge position of the connecting hole 130 and extends towards the inner cavity of the second quick-connecting member 13. The protruding member 134 abuts against the first connecting body 10 so that the sheath tube 2 can pass through quickly during use.

[0084] In a third aspect, an interventional delivery sheath is disclosed. Please refer to the attached Figure 2 and 3 , including: the connecting seat body 1 according to any one of the above;

[0085] A hemostasis assembly 17 is provided in the connecting seat body 1, and the hemostasis assembly 17 is threadedly connected to the inner wall of the connecting seat body 1; and,

[0086] A pressing member 16 is provided on the connecting hole 130 of the connecting seat body 1 for opening or closing the channel of the hemostasis assembly 17; and,

[0087] A sheath tube 2, and the sheath tube 2 is movably connected to one end of the first quick-connecting member 14 away from the connecting seat body 1.

[0088] At the current stage, when the connecting seat body 1 is installed, it is not convenient. At the same time, during operation, the connection between the second quick-connecting structure 101 and the second quick-connecting member 13 is unstable, which affects the operation. It can be understood that in order to ensure that the connecting seat body 1 can be installed quickly and ensure the stability during operation, in the embodiment, the hemostasis assembly 17 is threadedly connected to the connecting seat body 1, and a pressing member 16 is provided at one end of the second quick-connecting member 13 away from the second quick-connecting structure 101. The hemostasis assembly 17 can be effectively opened or closed through the pressing member 16. In the embodiment, the connection between the second quick-connecting member 13 and the second quick-connecting structure 101 is set as a snap connection to ensure that the connecting seat body 1 can be installed quickly, and the snap connection structure can ensure the stability of the connecting seat body 1 and effectively ensure the stability during operation, effectively improving the operation efficiency.

[0089] During actual operation, the hemostasis component 17 is installed in the connecting seat body 1, and then the opening of the connecting seat body 1 is clamped to the connection port of the second quick-connect structure 101. The pressing member 16 is provided at one end away from the second quick-connect member 13, and one end of the pressing member 16 is in contact connection with the hemostasis component 17. The first quick-connect member 14 of the connecting seat body 1 is connected to the sheath tube 2. The connecting seat body 1 realizes the opening and closing of the hemostasis component 17 by simply pressing the pressing member 16, improving the operation convenience of the connector and the sheath tube 2, and also ensuring the operation stability.

[0090] Please refer to the appendix Figure 7 For the further embodiment, the hemostasis component 17 includes a compression member 173 provided in the connector;

[0091] a pressing block 171, one end of the pressing block 171 is in contact connection with the compression member 173, and the other end is threadedly connected to the inner wall of the second quick-connect member; and

[0092] a hemostasis valve member 170 provided between the pressing block 171 and the second quick-connect member. Specific embodiment

[0093] The interventional delivery sheath further includes a dilator that extends along the axis of the sheath tube 2; wherein the dilator sequentially passes through the hemostasis valve and the seal, and the outer wall of the dilator is in interference fit with the through hole of the seal. In one embodiment, a dilator is provided in order to facilitate the sheath tube 2 to intervene in the human blood vessel. The dilator penetrates into the sheath tube 2 from the proximal end and penetrates out of the distal end of the sheath tube 2. The dilator tube that penetrates out of the sheath tube 2 is used to enlarge the small hole of the puncture needle. Since the distal end of the dilator and the distal end of the sheath tube 2 are in smooth transition, the sheath tube 2 can smoothly penetrate into the small hole formed by the puncture needle on the human body along with the dilator tube and enter the interior of the blood vessel. The dilator moves axially or rotates circumferentially relative to the sheath tube 2.

[0094] When the dilator is withdrawn, the evacuation catheter is used to withdraw the liquid and gas in the sheath tube 2. After the operation of the sheath tube 2 intervening in the human body is completed, the guide wire and the dilator need to be withdrawn to establish a channel in the sheath tube 2, and the channel is used for the implantable device to enter. It can be understood that since the dilator occupies a certain volume in the sheath tube 2, when the dilator is withdrawn, it will cause the lack of sealing liquid in the sheath tube 2 and cannot form an effective sealing effect. For this reason, it is necessary to withdraw the liquid in the sheath tube 2 through the evacuation catheter to fully mix the blood and the sealing liquid, so that the liquid fills the interior of the sheath tube 2 again, especially the inner cavity of the hemostasis valve seat. The withdrawal operation can also completely discharge the gas generated by withdrawing the dilator.

[0095] The third aspect discloses an interventional delivery sheath, please refer to the appendix Figure 8 including: the connecting seat body 1;

[0096] The bending adjustment handle 3 is movably connected to one end of the connecting seat body 1 away from the connecting seat body 1 for adjusting the sheath tube 2.

[0097] Please refer to the appendix Figure 9 In the embodiment, further, the bending adjustment handle 3 includes: an adjustment main body 30, with a first connection structure and a second connection structure 303 provided at both ends of the adjustment main body 30 respectively;

[0098] A sliding member 33 is provided on the outer surface of the adjustment main body 30 and can move linearly on the outer surface of the adjustment main body 30;

[0099] A connector is provided at one end of the adjustment main body 30 and is movably connected to the first connection structure;

[0100] A protective member 31 is provided on the outer surface of the connector; and,

[0101] An adjustment housing 32, one end of the adjustment housing 32 is provided between the connector and the protective member 31, and the inner wall is threadedly connected to the outer surface of the sliding member 33.

[0102] It can be understood that the sliding member 33 in this embodiment is used on the bending adjustment handle 3 for operating the bendable sheath tube 2, and the sliding member 33 is set as a slider with an annular structure, and can also be considered as a tubular structure. In the embodiment, the sliding member 33 is sleeved on the adjustment main body 30. Therefore, in order to enable the sliding member 33 to move relative to the adjustment main body 30, threads are provided on the outer surface of the sliding member 33.

[0103] In the embodiment, through the cooperation of the connector and the protective member 31, the adjustment housing 32 can rotate radially around the adjustment main body 30. At the same time, with the cooperation between the inner wall of the adjustment housing 32 and the sliding member 33, when the adjustment housing 32 is rotated, the sliding member 33 can move along the axial direction of the adjustment main body 30. That is, through the cooperation of the adjustment main body 30 and the protective member 31, the installation of the adjustment housing 32 is realized. In this way, the movable installation of the adjustment housing 32 is effectively ensured, and the adjustment of the bendable sheath tube 2 can also be realized through the cooperation of the adjustment housing 32 and the sliding member 33. In the embodiment, the structures of the adjustment main body 30 and the sliding member 33 are made simpler, and the disassembly and assembly are more convenient, which is helpful for production and maintenance.

[0104] Please refer to the appendix Figure 9 In the embodiment, further, the adjustment main body 30 includes a first tube body 300, with a first connection structure provided at one end of the first tube body 300, and a limiting groove 304 is provided on the outer surface of the first tube body 300;

[0105] The stopper 302 is provided at the other end of the first pipe body 300, and the stopper 302 is connected to the adjusting housing 32;

[0106] The second pipe body 301 is provided on the side of the stopper 302 away from the first pipe body 300, and the second pipe body 301 communicates with the first pipe body 300. A second connection structure 303 is provided at the end of the second pipe body 301.

[0107] It can be understood that in order to ensure that the bending adjustment housing only rotates in the radial direction when bending is required, a stopper 302 with a limiting structure needs to be provided on the first pipe body 300. The stopper 302 can limit the axial movement of the bending adjustment housing at this end, and a connector and a protective member 31 are provided at the other end of the first pipe body 300 to limit the axial movement at this end, so that the bending adjustment housing can only rotate radially. In the embodiment, the convenience of operation is improved through such cooperation, and the structure is simpler.

[0108] The first pipe body 300 and the second pipe body 301 are respectively provided with a first connection structure and a second connection structure 303 at their end portions for detachably connecting other components. For example, the first connection structure is used for detachably connecting the connector. In the actual embodiment, the first connection structure can be a thread or a snap connection structure 141.

[0109] The limiting groove 304 is arranged along the axial direction of the first pipe body 300 and is used to limit the moving direction of the sliding member 33, that is, the sliding member 33 can only move along the limiting groove 304.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A connecting seat body for an interventional delivery sheath, characterized in that: The connecting seat body comprises: a first connecting body, one end of which is connected to the connecting piece and has a through hole inside; A second connector is disposed on a side of the first connector and is internally connected to the through hole; and A reinforcement member, provided between the first connector and the second connector; The two ends of the first connector and the end of the second connector are respectively provided with a first quick-connect structure, a second quick-connect structure and a third quick-connect structure; and the first quick-connect structure, the second quick-connect structure and the third quick-connect structure are respectively connected to a first quick-connect member, a second quick-connect member and a third quick-connect member.

2. The connection seat according to claim 1, characterized in that: The first quick connector includes a first body, and the first body has a through hole running through the interior; A clamping structure is provided at one end of the first body and is disposed near the edge of the through hole, and the clamping structure also includes a clamping member, which cooperates with the first quick-connect structure through the clamping member; and, The plug-in structure is connected to the through hole, and the outer diameter of the plug-in structure gradually decreases from the through hole to the other end. The plug-in structure is also provided with an internal thread, and there is a spacing between the outer diameter of the plug-in structure and the internal thread.

3. The connection seat according to claim 1, characterized in that: The second quick connector comprises a second body, the second body has an inner cavity, and the inner cavity is provided with an internal thread, and an end of the second body away from the opening position is provided with a connecting hole.

4. The connection seat according to claim 3, characterized in that: The second body is provided with at least one limiting protrusion on the inner wall of the connecting hole; At least three clamping protrusions are arranged at one end of the second body away from the connecting hole, and the clamping protrusions are arranged at positions close to the edge of the opening of the second body.

5. The connection seat according to claim 3, characterized in that: The second quick-connect member is provided with a protrusion, and the protrusion is a protrusion structure extending from the edge of the connecting hole toward the inner cavity.

6. An interventional delivery sheath, characterized in that: include: The connecting seat body according to any one of claims 1 to 4; A hemostasis component is disposed in the connecting seat body, and the hemostasis component is threadedly connected to the inner wall of the connecting seat body; and, A pressing member, provided on the connecting hole of the connecting seat body, and used for opening or closing the channel of the hemostasis component; and, The sheath tube is movably connected to an end of the first quick connector away from the connecting seat body.

7. The interventional delivery sheath according to claim 6, characterized in that: The hemostasis assembly includes a compression member disposed in the connector; A pressing block, one end of which is in contact with and connected to the compression member, and the other end of which is threadedly connected to the inner wall of the second quick-connect member; and, The hemostatic valve component is arranged between the pressing block and the second quick-connect component.

8. An interventional delivery sheath, characterized in that: include: The connecting seat body according to claim 5; The bending adjustment handle is movably connected to one end of the connecting seat body away from the connecting seat body and is used for adjusting the sheath tube.

9. The interventional delivery sheath according to claim 8, characterized in that: The bending adjustment handle comprises: an adjustment body, and two ends of the adjustment body are respectively provided with a first connection structure and a second connection structure; A sliding member, which is arranged on the outer surface of the adjusting body and can move linearly on the outer surface of the adjusting body; A connector, provided at one end of the adjusting body and movably connected to the first connecting structure; a protective member, disposed on an outer surface of the connector; and An adjusting shell, one end of which is arranged between the connector and the protective member, and an inner wall of which is threadedly connected to the outer surface of the sliding member.

10. The interventional delivery sheath according to claim 9, characterized in that: The regulating body comprises a first tube body, one end of the first tube body is provided with a first connecting structure, and the outer surface of the first tube body is provided with a limiting groove; A stopper, disposed at the other end of the first tube body, and connected to the adjustment housing; The second tube body is arranged on a side of the blocking member away from the first tube body, and the second tube body is connected to the first tube body. A second connecting structure is arranged at the end of the second tube body.

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