Cable connection structure and interventional instrument
By setting an installation port and a fixing cavity in the cable connection structure, combined with adhesive fixing connection, the problem of inconvenient cable assembly is solved, and the technical effects of simplified assembly and improved fixing effect are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FENGKAI MEDICAL INSTR (SHANGHAI) CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-24
AI Technical Summary
In the existing technology, the cable connection structure is inconvenient to assemble in blood pumping auxiliary equipment, especially when the cable is connected by a connector, it cannot pass smoothly through the sleeve or heat shrink tubing, resulting in increased manufacturing and costs.
The cable connection structure includes a connection device, a cable assembly, and a cable fastener. By providing an installation port and a fixing cavity on the housing, the cable can be directly inserted into the fixing cavity from the outer circumference of the housing, avoiding the need for the connector to pass through the sleeve or heat shrink tubing. Combined with adhesive fastening connection, it improves assembly convenience.
It simplifies the cable assembly process, reduces assembly difficulty, shrinks the size of cable fasteners, improves cable fixation, and reduces the risk of cable detachment.
Smart Images
Figure CN224164474U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical devices, and in particular to a cable connection structure for interventional devices and interventional devices. Background Technology
[0002] In blood pump assist devices, cables are typically used to connect the device inside and outside the patient's body for communication. To ensure that the cable does not detach from the operating handle of the blood pump assist device during user transport or operation, the cable needs to be secured relative to the operating handle. Existing technologies typically use tubing to wrap the cable harness and then fill it with adhesive, or use heat shrink tubing for heat shrink fixation.
[0003] However, the cables connecting internal and external devices to patients are quite long, placing high demands on manufacturing and cost. Therefore, the cable can be divided into two parts, connected by connectors. However, when connectors are used, they cannot easily pass through sleeves or heat-shrink tubing, causing assembly difficulties. Utility Model Content
[0004] This application provides a cable connection structure and interventional device, which improves the ease of assembly of the cable connection structure.
[0005] In a first aspect, embodiments of this application provide a cable connection structure, including a connecting device, a cable assembly, and a cable fastener. The connecting device includes a housing and a connector assembly installed within the housing. The cable fastener is installed at one end of the housing along its own axial direction, and the cable fastener has a fixing cavity defined inside, extending through the cable fastener along the axial direction of the housing. The cable fastener has an installation opening that extends through the cable fastener along its thickness direction and through the housing axial direction. The cable assembly includes at least one first cable, one end of which extends through the cable fastener into the housing, and at least a portion of the first cable is connected to the connector assembly. The first cable passes through the fixing cavity, and the circumferential dimension of the installation opening along the cable fastener is greater than or equal to the outer diameter of the first cable.
[0006] In some embodiments, the cable assembly includes a cable sleeve, a first cable passing through the cable sleeve, one end of the first cable extending out of the cable sleeve, and one end of the cable sleeve being inserted into a fixing cavity and fixedly disposed relative to a cable fixing member.
[0007] In some embodiments, the cable sleeve has a first end that is inserted into the fixing cavity, the first end being spaced apart from the end of the cable fixing member near the connector assembly; the cable sleeve is fixedly connected to the cable fixing member by an adhesive, at least part of the adhesive filling the gap between the cable sleeve and the cable fixing member, and covering the first end of the cable sleeve.
[0008] In some embodiments, the cable connection structure further includes: a cable protection component connected to one end of the housing, the inside of the cable protection component forming a protective cavity, and a cable sheath passing through the protective cavity; at least a portion of the adhesive fills the gap between the mounting port, the cable fixing component, and the cable protection component.
[0009] In some embodiments, a first limiting groove is provided on the inner side of one end of the housing near the connector assembly; the cable protection member includes a first main body and a first axial limiting part, the first axial limiting part is disposed at one end of the first main body near the connector assembly and protrudes from the outer peripheral surface of the first main body, the first axial limiting part is at least partially accommodated in the first limiting groove and abuts against the end wall of the first limiting groove axially away from the connector assembly; the cable fixing member includes a second main body and a second axial limiting part, the second axial limiting part is disposed at one end of the second main body near the connector assembly and protrudes from the outer peripheral surface of the second main body, the second axial limiting part is disposed between the first axial limiting part and the first limiting groove axially near the end wall of the connector assembly.
[0010] In some embodiments, the cable protection member includes a first protrusion protruding from the inner peripheral surface of the first axial limiting portion, and a second axial limiting portion having a first recess recessed at the end face of the second axial limiting portion away from the connector assembly; or, the cable fixing member includes a first protrusion protruding from the outer peripheral surface of the second axial limiting portion, and a first recess recessed at the end face of the first axial limiting portion near the connector assembly; the first protrusion is inserted into the first recess to restrict the first axial limiting portion and the second axial limiting portion from rotating relative to each other in the circumferential direction of the housing.
[0011] In some embodiments, the fixing cavity includes a first limiting section, a first transition section and a filling section arranged sequentially along the axial direction of the housing. The cross-sectional area of the first transition section is larger than the cross-sectional area of the first limiting section. The cable sleeve is inserted into the first limiting section and the first transition section. The filling section is located between the first end of the cable sleeve and the end of the cable fixing member near the connector assembly. A portion of the colloid is filled in the filling section.
[0012] In some embodiments, the fixing cavity includes a first cavity and a second cavity that are interconnected and are arranged in parallel along a direction perpendicular to the axial direction of the housing; a cable sleeve is inserted into the first cavity; and a cable connection structure includes a fluid conduit that passes through the second cavity.
[0013] In some embodiments, there is one cable fastener, which is installed at the near end or the far end of the housing; or, there are two cable fasteners, which are respectively installed at the near end and the far end of the housing, and there are at least two first cables, at least a portion of which pass through the fixing cavities of the two cable fasteners and are connected by a connector assembly.
[0014] In some embodiments, there are two cable fasteners, at least two first cables, and the cable connection structure further includes a sheath inserted into one of the cable fasteners, with at least a portion of the first cable passing through the sheath and the cable fastener to connect to the connector assembly.
[0015] Secondly, embodiments of this application provide an interventional device, which includes an external device and a cable connection structure provided according to any embodiment of the first aspect, wherein one end of the first cable away from the connector assembly is connected to the external device.
[0016] The cable connection structure provided in this application embodiment has an installation port on the cable fixing member, and the circumferential dimension of the installation port on the cable fixing member is greater than or equal to the outer diameter of the first cable. During assembly, the connector assembly can be placed on the side of the cable fixing member close to the connector assembly, and then the first cable can be inserted into the fixing cavity from the outer side of the outer circumferential surface of the cable fixing member through the installation port, so that the first cable passes through the fixing cavity. The connector assembly does not need to pass through the cable fixing member axially, which helps to reduce the assembly difficulty, simplify the assembly process, and also reduces the size of the cable fixing member, thereby improving its fixing effect on the first cable. Attached Figure Description
[0017] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.
[0018] Figure 1 This is an exploded structural diagram of the cable connection structure provided in some embodiments of this application.
[0019] Figure 2 yes Figure 1 A partial structural cross-sectional view of the cable connection structure shown.
[0020] Figure 3 yes Figure 1 A schematic diagram of the cable fastener in the cable connection structure shown;
[0021] Figure 4 yes Figure 1 A schematic diagram of the cable fastener in another orientation of the cable connection structure shown;
[0022] Figure 5 It is along Figure 4 The cross-sectional view taken from direction AA in the middle.
[0023] Figure 6 yes Figure 1 The diagram shows a partial exploded view of the cable connection structure.
[0024] Figure 7 yes Figure 1 An exploded view of another part of the cable connection structure shown.
[0025] Figure 8 yes Figure 1 Another structural cross-sectional view of the cable connection structure shown.
[0026] Figure 9 yes Figure 1 The diagram shows an exploded view of the sheath fixing component and sheath protection component of the cable connection structure.
[0027] Figure 10 This is a schematic diagram of the structure of a pump flow auxiliary device provided in some embodiments of this application.
[0028] The reference numerals in the accompanying drawings for the specific embodiments are as follows:
[0029] 1. Cable connection structure; 2. Pump flow auxiliary equipment; 3. External equipment; 4. Pump flow conduit.
[0030] Connecting device 10, housing 11, first limiting groove 111, second limiting groove 112, first shell 11a, second shell 11b, connector assembly 12, first plug 121, plug body 1211, elastic element 1212, connector seat 122, second plug 123.
[0031] Cable assembly 20, first cable 21, cable sleeve 22, first end 22a, second cable 24;
[0032] Cable fastener 30, fixing cavity 31, first cavity 311, first limiting section 3111, first transition section 3112, filling section 3113, second cavity 312, mounting port 32, second main body 33, second axial limiting part 34, first protrusion 35;
[0033] Cable protection component 40, protective cavity 41, second limiting section 411, plug-in section 412, second transition section 413, first main body 42, first axial limiting part 43, first recess 44, fifth axial limiting part 45;
[0034] Sheath fixing member 50, fourth main body part 51, fourth axial limiting part 52, second protrusion 53;
[0035] Sheath 60;
[0036] Sheath protection 70, third main body 71, third axial limiting part 72, sixth axial limiting part 73, second recess 74;
[0037] Fluid piping 80;
[0038] Colloid G;
[0039] Axial direction X. Detailed Implementation
[0040] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.
[0041] The terms "first," "second," "third," etc., used in the specification, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments.
[0042] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.
[0043] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0044] In the embodiments of this application, "parallel" includes not only the case of absolute parallelism, but also the case of approximate parallelism as commonly understood in engineering; similarly, "perpendicular" also includes not only the case of absolute perpendicularity, but also the case of approximate perpendicularity as commonly understood in engineering. For example, if the angle between two directions is 85°-95°, the two directions can be considered perpendicular; if the angle between two directions is 0°-10°, the two directions can be considered parallel.
[0045] The cable connection structure provided in this application will be further described below with reference to the accompanying drawings.
[0046] Reference Figures 1 to 9According to a first aspect of this application, an embodiment of this application provides a cable connection structure 1, which includes a connecting device 10, a cable assembly 20, and a cable fastener 30. The connecting device 10 includes a housing 11 and a connector assembly 12 installed within the housing 11. The cable fastener 30 is installed at one end of the housing 11 along its own axial direction X, and the interior of the cable fastener 30 defines a fixing cavity 31 that extends through the cable fastener 30 along the axial direction X of the housing 11. The cable fastener 30 has an installation opening 32 that extends through the cable fastener 30 along its thickness direction and through the housing 11 along its axial direction X. The cable assembly 20 includes at least one first cable 21, one end of which passes through the cable fastener 30 and extends into the housing 11, and at least a portion of the first cable 21 is connected to the connector assembly 12. The first cable 21 passes through the fixing cavity 31, and the circumferential dimension of the installation opening 32 along the cable fastener 30 is greater than or equal to the outer diameter of the first cable 21.
[0047] The axial direction X of the housing 11 can be the direction in which the proximal end and the distal end of the housing 11 are opposite each other. Optionally, the axial direction X of the housing 11 can be parallel to the axial direction of the cable fixing member 30.
[0048] Optionally, the housing 11 may include a first housing 11a and a second housing 11b connected together, the first housing 11a and the second housing 11b together defining an accommodating space. The first housing 11a and the second housing 11b may be connected by snap-fit, screw connection or other suitable means to facilitate the installation of the connector assembly 12 and the cable fastener 30 within the housing 11.
[0049] It should be noted that in the embodiments of this application, the far end and the near end are relative to the operator using the cable connection structure 1. The far end can refer to the end that is far away from the operator using the cable connection structure 1, and the near end can refer to the end that is close to the operator using the cable connection structure 1. This will not be described again below.
[0050] The first cable 21 is used to connect to equipment inside or outside the patient's body. Optionally, the first cable 21 can be an optical fiber. The proximal end of the first cable 21, closer to the operator, can be connected to equipment outside the patient's body, such as monitoring equipment, display equipment, control equipment, etc. The distal end of the first cable 21, farther from the operator, can be connected to other cables or electronic components through the connector assembly 12.
[0051] The cable fastener 30 can be directly installed on one end of the housing 11 along the axial direction X, or it can be indirectly installed on one end of the housing 11 along the axial direction X through other components.
[0052] The cable fastener 30 can be installed at the proximal end of the housing 11 or at the distal end of the housing 11. Optionally, the cable fastener 30 can be installed at the proximal end of the housing 11, with the distal end of the first cable 21 extending through the proximal end of the housing 11 into the housing 11, and the distal end of the first cable 21 connected to the connector assembly 12.
[0053] The cable fastener 30 is installed near the end of the housing 11, meaning that the cable fastener 30 is installed in the housing 11 at the near end of the housing 11.
[0054] The fixing cavity 31 axially passes through the cable fixing member 30. Optionally, the cable fixing member 30 is tubular in shape, and the fixing cavity 31 is the cavity inside the cable fixing member 30.
[0055] The mounting port 32, which extends along the axial direction X of the housing 11 through the cable fastener 30, means that the mounting port 32 connects the two ports of the cable fastener 30 along the axial direction X. The mounting port 32 does not necessarily extend along the axial direction X.
[0056] Mounting port 32 connects to fixing cavity 31 and connects to the inner and outer peripheral surfaces of cable fixing member 30. Along the axial direction X of housing 11, mounting port 32 extends from the proximal end of cable fixing member 30 to the distal end of cable fixing member 30.
[0057] The term "installation port 32 extending through the cable fastener 30 along the thickness direction" means that, along the thickness direction of the cable fastener 30, the installation port 32 extends from the inner circumferential surface of the cable fastener 30 to the outer circumferential surface of the cable fastener 30, and the installation port 32 connects the fixing cavity 31 and the external space located outside the outer circumferential surface of the cable fastener 30.
[0058] The mounting port 32, extending along the axial direction X of the housing 11 through the cable fastener 30, means that along the axial direction X of the housing 11, the mounting port 32 extends from the proximal end face of the cable fastener 30 to the distal end face of the cable fastener 30. The mounting port 32 connects the external spaces on both sides of the cable fastener 30 along the axial direction X.
[0059] Optionally, the mounting port 32 is a strip-shaped opening extending along the axial direction X.
[0060] The first cable 21 is inserted through the fixed cavity 31, and one end of the first cable 21 extends out of the fixed cavity 31.
[0061] The circumferential dimension of the mounting port 32 along the cable fixing member 30 can be the width of the mounting port 32. The circumferential dimension of the mounting port 32 along the cable fixing member 30 is greater than or equal to the outer diameter of the first cable 21, and the first cable 21 can be inserted into the fixing cavity 31 through the mounting port 32.
[0062] During assembly, the connector assembly 12 can be placed on the side of the cable fixing member 30 along the axial direction X, close to the connector assembly 12. Then, the first cable 21 is inserted into the fixing cavity 31 from the outer side of the outer peripheral surface of the cable fixing member 30 through the mounting port 32, so that the first cable 21 passes through the fixing cavity 31. The connector assembly 12 does not need to pass through the cable fixing member 30 axially, which helps to reduce the assembly difficulty, simplify the assembly process, and also reduces the size of the cable fixing member 30, thereby improving its fixing effect on the first cable 21.
[0063] In some embodiments, the cable assembly 20 includes a cable sleeve 22, a first cable 21 passing through the cable sleeve 22, one end of the first cable 21 extending out of the cable sleeve 22, and one end of the cable sleeve 22 being inserted into the fixing cavity 31 and fixedly disposed relative to the cable fixing member 30.
[0064] The cable sleeve 22 is fitted over the outside of the first cable 21 to protect the first cable 21. The first cable 21 is fixedly installed relative to the cable sleeve 22.
[0065] Taking the cable fastener 30 installed near the housing 11 as an example, the distal end of the first cable 21 extends out of the cable sleeve 22, and the distal end of the cable sleeve 22 is inserted into the fixing cavity 31. The distal end of the first cable 21, and the portion of the first cable 21 connected to its distal end, extend out of the cable sleeve 22. The portion of the first cable 21 extending out of the cable sleeve 22 is inserted into the cable fastener 30 through the mounting port 32. The cable sleeve 22 can be inserted into the fixing cavity 31 from the proximal end of the cable fastener 30 and fixedly connected to the cable fastener 30. Optionally, the connection method between the cable sleeve 22 and the cable fastener 30 includes, but is not limited to, bonding, interference fit, or other suitable methods.
[0066] By fixing the cable sleeve 22 and the cable fastener 30 relative to each other, the first cable 21 can be fixed relative to the cable fastener 30. After the cable fastener 30 is installed in the housing 11, it helps to reduce the risk of the first cable 21 detaching from the housing 11.
[0067] In some embodiments, refer to Figure 2 The cable sleeve 22 has a first end 22a that is inserted into the fixing cavity 31, and the first end 22a is spaced apart from the end of the cable fixing member 30 near the connector assembly 12.
[0068] Optionally, the cable fastener 30 is installed at the proximal end of the housing 11, in a direction from the proximal end of the housing 11 to the distal end of the housing 11, with the distal end of the cable fastener 30 extending beyond the distal end of the cable sleeve 22.
[0069] The end of the cable sleeve 22 near the connector assembly 12 is hidden inside the cable fastener 30 and does not protrude from the cable fastener 30. When the cable fastener 30 is installed in the housing 11, this helps to reduce the risk of interference between the cable sleeve 22 and the housing 11.
[0070] like Figure 2 As shown, in some embodiments, the cable sleeve 22 is fixedly connected to the cable fixing member 30 by the adhesive G. The adhesive G fills the gap between the cable sleeve 22 and the cable fixing member 30 and covers the first end 22a of the cable sleeve 22.
[0071] Optionally, colloid G is a colloid formed after the liquid adhesive has cured. Alternatively, colloid G can also be other colloids that are easy to fill.
[0072] The colloid G can fill the gap between the cable sleeve 22 and the cable fastener 30, as well as the internal space of the portion of the cable fastener 30 that extends out of the cable sleeve 22.
[0073] Along the axial direction X, the projection of the cable sleeve 22 lies within the projection of the colloid G, so that the colloid G completely covers the first end 22a of the cable sleeve 22.
[0074] Along the axial direction X, the portion of the colloid G located between the first end 22a and the end of the cable retainer 30 near the connector assembly 12 can cover the end face of the first end 22a, as well as the gap between the cable sleeve 22 and the cable inside it.
[0075] The cable sleeve 22 is bonded to the cable fastener 30 by the adhesive G, which helps to improve the connection strength between the cable sleeve 22 and the cable fastener 30. The adhesive G fills the gap between the cable sleeve 22 and the cable fastener 30 and covers the first end 22a of the cable sleeve 22, which helps to provide a barrier outside the body and reduce the risk of external bacteria and microorganisms growing along the first cable 21 and entering the body.
[0076] In some embodiments, refer to Figure 1 and Figure 2 The cable connection structure 1 also includes a cable protection component 40, which is connected to one end of the housing 11 along the axial direction X. A protective cavity 41 is formed inside the cable protection component 40, and the cable sleeve 22 passes through the protective cavity 41. Part of the adhesive G fills the mounting opening 32 and the gap between the cable fixing component 30 and the cable protection component 40.
[0077] The adhesive G can be filled from the inside of the cable fixing member 30. Part of the adhesive G can fill the mounting port 32, and part of the adhesive G can overflow from the mounting port 32 into the fixing cavity 31, thus being located between the cable fixing member 30 and the cable protection member 40. The adhesive G can be used to bond the cable fixing member 30 and the cable protection member 40, which helps to improve the stability of their connection.
[0078] The connection methods between the cable protection component 40 and the housing 11 include, but are not limited to, plug-in and snap-fit.
[0079] The protective cavity 41 extends through the cable protection member 40 along the axial direction X of the housing 11, so that the cable sleeve 22 and the cable fixing member 30 can be installed therein.
[0080] The cross-sectional shape of the protective cavity 41 can be adapted to the external shape of the cable fixing member 30 so that the cable fixing member 30 and the cable protection member 40 can be better connected and fitted.
[0081] In some embodiments, the cable retainer 30 is mounted on the proximal end of the housing 11, and the cable protector 40 is connected to the proximal end of the housing 11. The protective cavity 41 includes a second limiting section 411 and a plug-in section 412, which are arranged along the direction from the proximal end of the housing 11 to the distal end of the housing 11. The cross-sectional area of the second limiting section 411 is smaller than the cross-sectional area of the plug-in section 412, and the cable retainer 30 is plugged into the plug-in section 412.
[0082] The second limiting section 411 is located near the proximal end of the cable protection component 40. The second limiting section 411 has a small cross-sectional area, which can limit the cable sleeve 22, reducing the risk of excessive bending or twisting of the cable sleeve 22 and improving the stability of the signal transmitted by the first cable 21. The plug-in section 412 has a large cross-sectional area, which is beneficial for plugging into the cable fixing component 30.
[0083] The cable protector 40 is used to protect the cable sleeve 22 and reduce the risk of excessive bending of the cable inside the cable sleeve 22. Optionally, the cable protector 40 is made of a flexible material; for example, the material of the cable protector 40 can be silicone, rubber, thermoplastic polyurethane elastomer (TPU), etc.
[0084] In some embodiments, the second limiting segment 411 is a straight segment extending along the axial direction X, which helps to extend the length of the section where the cable protection component 40 limits the cable sleeve 22 and improves the limiting effect of the second limiting segment 411 on the cable sleeve 22.
[0085] In some embodiments, the plug section 412 is a straight section extending along the axial direction X, which is beneficial to increase the mating length between the cable protection component 40 and the cable fixing component 30 and improve the assembly stability of the cable fixing component 30.
[0086] In some embodiments, the protective cavity 41 further includes a second transition section 413 along the axial direction X, located between the second limiting section 411 and the insertion section 412. Along the direction from the proximal end to the distal end of the housing 11, the cross-sectional area of the second transition section 413 gradually increases, and the thickness of the portion of the cable protection member 40 corresponding to the second transition section 413 changes slowly, which helps to improve the structural strength of the cable protection member 40 and reduce its cracking risk.
[0087] In some embodiments, refer to Figures 1 to 7 The housing 11 has a first limiting groove 111 on its inner side near the connector assembly 12. The cable protection member 40 includes a first main body 42 and a first axial limiting part 43. The first axial limiting part 43 is located at the end of the first main body 42 near the connector assembly 12 and protrudes from the outer peripheral surface of the first main body 42. The first axial limiting part 43 is at least partially accommodated in the first limiting groove 111 and abuts against the end wall of the first limiting groove 111 away from the connector assembly 12 along the axial direction X. The cable fixing member 30 includes a second main body 33 and a second axial limiting part 34. The second axial limiting part 34 is located at the end of the second main body 33 near the connector assembly 12 and protrudes from the outer peripheral surface of the second main body 33. The second axial limiting part 34 is located between the first axial limiting part 43 and the end wall of the first limiting groove 111 near the connector assembly 12 along the axial direction X, so as to limit the movement of the cable fixing member 30 along the axial direction X or limit the range of movement of the cable fixing member 30 along the axial direction X.
[0088] Optionally, the cable protection member 40 is connected to the proximal end of the housing 11. The cable protection member 40 also includes a fifth axial limiting portion 45, which protrudes from the outer peripheral surface of the first main body portion 42 and abuts against the proximal end face of the housing 11. Through the abutment between the first axial limiting portion 43 and the proximal sidewall of the first limiting groove 111, and the abutment between the fifth axial limiting portion 45 and the proximal end face of the housing 11, the cable protection member 40 can be fixed relative to the housing 11.
[0089] In some examples, along the axial direction X, the distance between the distal end face of the first axial limiting portion 43 and the distal sidewall of the first limiting groove 111 is equal to the size of the second axial limiting portion 34, which is restricted between the distal end face of the first axial limiting portion 43 and the distal sidewall of the first limiting groove 111, and the cable fastener 30 is fixed relative to the mounting position of the housing 11.
[0090] In other examples, along the axial direction X, the distance between the distal end face of the first axial limiting part 43 and the distal sidewall of the first limiting groove 111 is greater than the size of the second axial limiting part 34, and the installation position of the cable fixing member 30 relative to the housing 11 is adjustable along the axial direction X. After the installation position of the cable fixing member 30 relative to the housing 11 is determined, the cable fixing member 30 can be fixed in the housing 11 by means of fixing members, adhesives or other components.
[0091] In this embodiment, the cooperation between the first axial limiting part 43 and the first limiting groove 111 reduces the risk of the cable protection member 40 detaching from the housing 11, thus improving the connection stability between the cable protection member 40 and the housing 11. The cooperation between the second axial limiting part 34 and the first axial limiting part 43 and the first limiting groove 111 also provides axial X-axis limiting for the cable fixing member 30, thereby reducing axial movement of the cable fixing member 30 or limiting its axial movement range, further reducing the risk of the cable fixing member 30 falling off.
[0092] In some embodiments, the cable retainer 30 includes a first protrusion 35 that protrudes from the outer peripheral surface of the second axial limiting portion 34, and the first axial limiting portion 43 has a first recess 44 that is recessed in the end face of the first axial limiting portion 43 near the connector assembly 12. Alternatively, the cable protector includes a first protrusion that protrudes from the inner peripheral surface of the first axial limiting portion 43, and the second axial limiting portion 34 has a first recess that is recessed in the end face of the second axial limiting portion 34 away from the connector assembly 12.
[0093] The first protrusion 35 is inserted into the first recess 44 to restrict the first axial limiting part 43 and the second axial limiting part 34 from rotating relative to each other in the circumferential direction of the housing 11. The cooperation between the first protrusion 35 and the first recess 44 enables circumferential positioning of the cable fixing member 30 and the cable protection member 40.
[0094] In some embodiments, refer to Figure 2 and Figure 5 The fixing cavity 31 includes a first limiting section 3111, a first transition section 3112, and a filling section 3113 arranged sequentially along the axial direction X of the housing 11. The cross-sectional area of the first transition section 3112 is larger than that of the first limiting section 3111. The cable sleeve 22 is inserted into the first limiting section 3111 and the first transition section 3112. The filling section 3113 is located between the first end 22a of the cable sleeve 22 and the end of the cable fixing member 30 near the connector assembly 12. A portion of the colloid G is filled in the filling section 3113.
[0095] In some embodiments, the fixing cavity 31 includes a first cavity 311, which passes through the cable fixing member 30 along the axial direction X of the housing 11. The first cavity 311 includes a first limiting section 3111, a first transition section 3112, and a filling section 3113.
[0096] In the embodiments of this application, "cross section" refers to a cross section perpendicular to the axial direction X. For example, the cross section of the first limiting segment 3111 is a cross section of the first limiting segment 3111 perpendicular to the axial direction X.
[0097] The cross-section of the first cavity 311 can be entirely circular, or it can be the shape remaining after a portion of the circle has been cut off.
[0098] The cross-sectional shape of the first cavity 311 is adapted to the external shape of the cable sleeve 22, which is beneficial for the cable sleeve 22 to be assembled into the cable fixing member 30, and also beneficial for the relative fixation of the cable sleeve 22 and the cable fixing member 30.
[0099] The fact that the cross-sectional area of the first limiting segment 3111 is smaller than the cross-sectional area of the first transition segment 3112 means that the average cross-sectional area of the first limiting segment 3111 is smaller than the average cross-sectional area of the first transition segment 3112.
[0100] The first limiting segment 3111 has a small cross-sectional area. The first limiting segment 3111 can limit the cable sleeve 22 to a certain extent, reduce the risk of excessive bending or twisting of the cable sleeve 22, and help improve the stability of the signal transmission of the first cable 21.
[0101] Optionally, the first limiting segment 3111 can be a straight segment extending along the axial direction X, which is beneficial to extend the length of the section where the cable fixing member 30 plays a limiting role on the cable sleeve 22, and improve the limiting effect of the first limiting segment 3111 on the cable sleeve 22.
[0102] Optionally, the first limiting segment 3111 is interference-fitted with the cable sleeve 22, which helps to further improve the limiting effect of the first limiting segment 3111 on the cable sleeve 22.
[0103] The first transition section 3112 has a larger cross-sectional area, which can increase the gap between the cable sleeve 22 and the cable fixing member 30 within the first transition section 3112, increase the amount of adhesive filled within the first transition section 3112, and improve the connection stability between the cable sleeve 22 and the cable fixing member 30. Furthermore, during the insertion of the cable sleeve 22 into the first cavity 311, the resistance experienced by the cable sleeve 22 gradually decreases, which is beneficial for the assembly of the cable sleeve 22.
[0104] Optionally, the cross-sectional area of the first transition section 3112 gradually increases along the direction from the first limiting section 3111 to the filling section 3113. The thickness of the portion of the cable fastener 30 corresponding to the first transition section 3112 changes slowly, which helps to improve the structural strength of the cable fastener 30 and reduce its risk of cracking.
[0105] The cable sleeve 22 is not inserted into the filler section 3113. The portion of the colloid G located within the filler section 3113 can cover the first end 22a of the cable sleeve 22, the gap between the cable sleeve 22 and the cable inside it, and the gap between the cable sleeve 22 and the cable fastener 30 along the axial direction X. The colloid stored in the filler section 3113 helps to improve the sealing effect and reduce the risk of external bacteria and microorganisms growing along the first cable 21 and entering the body.
[0106] In some embodiments, refer to Figures 1 to 3 There are multiple first cables 21, one of which is connected to the connector assembly 12. Optionally, this first cable 21 is an optical fiber. The remaining first cables 21 can be signal cables, power cables, etc.
[0107] In some embodiments, refer to Figure 4 and Figure 5 The fixed cavity 31 includes a first cavity 311 and a second cavity 312 that are interconnected. The first cavity 311 and the second cavity 312 are arranged in parallel along an axial direction perpendicular to the housing 11. The cable sleeve 22 is inserted into the first cavity 311. The cable connection structure 1 includes a fluid conduit 80 that passes through the second cavity 312.
[0108] Both the first cavity 311 and the second cavity 312 pass through the cable fixing member 30 along the axial direction X of the housing 11.
[0109] The arrangement of the first cavity 311 and the second cavity 312 is perpendicular to the axial direction X.
[0110] In the arrangement direction of the first cavity 311 and the second cavity 312, the second cavity 312 can increase the size of the fixed cavity 31, which helps to reduce the resistance encountered by the cable sleeve 22 when passing through the fixed cavity 31 and reduce the assembly difficulty of the cable sleeve 22.
[0111] Optionally, the number of second cavities 312 can be one or more. When there are multiple second cavities 312, the multiple second cavities 312 can be located on the same side of the first cavity 311, or they can be arranged along the outer periphery of the first cavity 311.
[0112] Optionally, there may be one or more fluid lines 80. Optionally, the fluid lines 80 may include, but are not limited to, injection lines, drainage lines, etc.
[0113] In some embodiments, refer to Figure 1 and Figure 2 The cable connection structure 1 also includes a cable protection component 40, which is connected to the near end of the housing 11. A protective cavity 41 is formed inside the cable protection component 40, and the cable sheath 22 passes through the protective cavity 41. The protective cavity 41 includes a second limiting section 411 and a plug-in section 412. The cross-sectional area of the second limiting section 411 is smaller than the cross-sectional area of the plug-in section 412, and the cable fixing component 30 is plugged into the plug-in section 412.
[0114] The connection methods between the cable protection component 40 and the housing 11 include, but are not limited to, plug-in and snap-fit.
[0115] The protective cavity 41 extends through the cable protection member 40 along the axial direction X of the housing 11, so that the cable sleeve 22 and the cable fixing member 30 can be installed therein.
[0116] The cross-sectional shape of the protective cavity 41 can be adapted to the external shape of the cable fixing member 30 so that the cable fixing member 30 and the cable protection member 40 can be better connected and fitted.
[0117] The second limiting section 411 has a smaller cross-sectional area, which can limit the cable sleeve 22, reduce the risk of excessive bending or twisting of the cable sleeve 22, and help improve the stability of the signal transmission of the first cable 21. The plug-in section 412 has a larger cross-sectional area, which is beneficial for plugging in the cable fixing component 30.
[0118] The cable protector 40 is used to protect the cable sleeve 22 and reduce the risk of excessive bending of the cable inside the cable sleeve 22. Optionally, the cable protector 40 is made of a flexible material; for example, the material of the cable protector 40 can be silicone, rubber, thermoplastic polyurethane elastomer (TPU), etc.
[0119] In some embodiments, the second limiting segment 411 is a straight segment extending along the axial direction X, which helps to extend the length of the section where the cable protection component 40 limits the cable sleeve 22 and improves the limiting effect of the second limiting segment 411 on the cable sleeve 22.
[0120] In some embodiments, the plug section 412 is a straight section extending along the axial direction X, which is beneficial to increase the mating length between the cable protection component 40 and the cable fixing component 30 and improve the assembly stability of the cable fixing component 30.
[0121] In some embodiments, the protective cavity 41 further includes a second transition section 413 along the axial direction X, the second transition section 413 being located between the second limiting section 411 and the plug-in section 412. Optionally, the cable protection member 40 is connected to the proximal end of the housing 11, and along the direction from the proximal end of the housing 11 to the distal end of the housing 11, the cross-sectional area of the second transition section 413 gradually increases, and the thickness of the portion of the cable protection member 40 corresponding to the second transition section 413 changes slowly, which is beneficial to improving the structural strength of the cable protection member 40 and reducing its cracking risk.
[0122] In some embodiments, refer to Figure 1 and Figure 6 A cable retainer 30 is mounted near the housing 11, and a cable protector 40 is connected to the near end of the housing 11. The connector assembly 12 includes a first plug 121. The first plug 121 includes a plug body 1211 and an elastic member 1212. The distal end of the first cable 21 is connected to the plug body 1211, and one end of the elastic member 1212 is connected to the plug body 1211. The elastic member 1212 is configured to be compressed towards the plug body 1211 or released away from the plug body 1211. When the elastic member 1212 is fully compressed, the projection of the first plug 121 along the axial direction X of the housing 11 is within the projection of the second limiting segment 411; when the elastic member 1212 is fully released, the projection of the first plug 121 along the axial direction of the housing 11 exceeds the projection range of the second limiting segment 411.
[0123] The distal end of the first cable 21 can be inserted into the first plug 121 and fixed relative to the first plug 121.
[0124] One end of the elastic element 1212 can be connected to the circumferential surface of the plug body 1211. When the elastic element 1212 is compressed, it can deform in the direction closer to the plug body 1211, thereby being compressed. After the pressure on the elastic element 1212 is released, it can recover its deformation in the direction away from the plug body 1211 under its own elastic recovery action, thereby being released.
[0125] The elastic element 1212 being in a fully compressed state means that the elastic element 1212 is compressed to its maximum extent and cannot be compressed further. The elastic element 1212 being in a fully released state means that the elastic element 1212 is not compressed at all and is in a natural state. At this time, the maximum distance between the elastic element 1212 and the plug body 1211 is the maximum.
[0126] When the elastic element 1212 is in a fully compressed state, along the axial direction X of the housing 11, the projection of the first plug 121 is located within the projection of the second limiting segment 411, and the first plug 121 can be smoothly inserted into the second limiting segment 411. When the elastic element 1212 is in a fully released state, along the axial direction X of the housing 11, the projection of the first plug 121 exceeds the projection range of the second limiting segment 411, and the first plug 121 cannot be inserted into the second limiting segment 411.
[0127] Therefore, during assembly, the elastic element 1212 can be pressed to bring it to a fully compressed state. In this state, the first plug 121 is inserted into the second limiting section 411 from the proximal end of the cable protection element 40, and the first plug 121 is pushed along the axial direction X. Since the cross-sectional area of the plug section 412 is large, after the first plug 121 passes through the second limiting section 411, the squeezing force on the elastic element 1212 is reduced, the elastic element 1212 is gradually released, the elastic element 1212 will not come out of the second limiting section 411, and the pushing force required to push the first plug 121 is reduced, which is conducive to the first plug 121 passing smoothly through the protective cavity 41 and reduces the assembly difficulty of the first plug 121.
[0128] In some embodiments, along the axial direction X, the length of the second limiting segment 411 is less than the length of the plug segment 412. The length of the second limiting segment 411 is less than the length of the second transition segment 413. This reduces the assembly difficulty of the first plug 121.
[0129] In some embodiments, the cable fastener 30 is a single unit, which is installed at the near end or far end of the housing 11.
[0130] In other embodiments, there are two cable fasteners 30, which are respectively installed at the near end and far end of the housing 11. There are at least two first cables 21, and at least a portion of the first cables 21 pass through the fixing cavities 31 of the two cable fasteners 30 and are connected by the connector assembly 12.
[0131] In some embodiments, there are two cable retainers 30 and at least two first cables 21. The cable connection structure 1 also includes a sheath inserted into one of the cable retainers 30, and a portion of the first cable 21 passes through the sheath and the cable retainer 30 to connect to the connector assembly 12. Optionally, one of the first cables 21 passing through the sheath and the other passing through the cable sleeve 22 is connected via the connector assembly 12.
[0132] In other embodiments, reference is made to Figure 1 and Figure 8The cable fixing member 30 is a single unit, installed at the proximal end of the housing 11. The cable connection structure 1 also includes a sheath fixing member 50 and a sheath 60. The sheath fixing member 50 is installed at the distal end of the housing 11. The sheath 60 is inserted into the sheath fixing member 50. The cable assembly 20 includes a second cable 24, the proximal end of which passes through the sheath 60 and extends into the housing 11. The proximal end of the second cable 24 is connected to the distal end of the first cable 21 via a connector assembly 12.
[0133] The structure of the sheath fixing member 50 may be the same as or different from that of the cable fixing member 30.
[0134] The second cable 24 is fixedly disposed relative to the sheath 60, and the sheath 60 is fixedly disposed relative to the sheath fixing member 50. Optionally, the second cable 24 and the sheath 60, as well as the sheath 60 and the sheath fixing member 50, can be fixed relative to each other by interference fit, bonding or other suitable means.
[0135] The second cable 24 is used to connect to equipment inside the patient's body. A portion of the second cable 24 is housed within a sheath 60, which provides protection for the second cable 24.
[0136] Optionally, the axial direction X of the housing 11 may be parallel to the axial direction of the sheath 60.
[0137] The first cable 21 and the second cable 24 can be arranged coaxially, which helps to increase the connection area between them and improve the signal connection stability and accuracy.
[0138] Optionally, the central axes of the first cable 21, the second cable 24, and the sheath 60 all coincide with the central axis of the housing 11.
[0139] The distal end of the first cable 21 and the proximal end of the second cable 24 can be signal-connected inside the connector assembly 12, which can secure the connection between the first cable 21 and the second cable 24. The first cable 21 and the second cable 24 can establish a signal connection by abutment, plugging, or other suitable means. For example, both the first cable 21 and the second cable 24 are optical fibers, and the distal end face of the first cable 21 and the proximal end face of the second cable 24 are abutted together.
[0140] The near end of the second cable 24 can be connected to the connector assembly 12 by plugging, interference fit or other suitable means.
[0141] Optionally, the connector assembly 12 further includes a connector base 122 and a second plug 123, both of which are inserted into the connector base 122. The proximal end of the second cable 24 is connected to the second plug 123. The connector base 122 is mounted on the housing 11. The first cable 21 and the second cable 24 are respectively connected to the first plug 121 and the second plug 123, which helps to reduce the difficulty of connecting the first cable 21 and the second cable 24 and improve the efficiency of connecting and assembling the first cable 21 and the second cable 24.
[0142] The cable used for transmitting signals is divided into two parts: a first cable 21 and a second cable 24. The first cable 21 and the second cable 24 can be manufactured and transported in segments, which reduces the length of the cable during manufacturing and transportation. This helps to reduce the manufacturing difficulty and cost of the cable to a large extent, thereby reducing the manufacturing difficulty and cost of the cable connection structure 1.
[0143] In some embodiments, the cable connection structure 1 further includes a sheath protection member 70. The sheath protection member 70 is connected to the distal end of the housing 11, and the sheath fixing member 50 is inserted into the sheath protection member 70. A second limiting groove 112 is provided on the inner side of the distal end of the housing 11. The sheath protection member 70 includes a third main body portion 71 and a third axial limiting portion 72 provided near the proximal end of the third main body portion 71. The third axial limiting portion 72 protrudes from the outer peripheral surface of the third main body portion 71 and is at least partially accommodated in the second limiting groove 112 and abuts against the distal sidewall of the second limiting groove 112. The sheath fixing member 50 includes a fourth main body portion 51 and a fourth axial limiting portion 52. The fourth axial limiting portion 52 protrudes from the outer peripheral surface of the fourth main body portion 51 and is located between the third axial limiting portion 72 and the proximal sidewall of the second limiting groove 112.
[0144] The sheath protector 70 is used to protect the sheath 60 and reduce the risk of excessive bending of the cable inside the sheath 60. Optionally, the sheath protector 70 is made of a flexible material; for example, the material of the sheath protector 70 may be silicone, rubber, thermoplastic polyurethane elastomer (TPU), etc.
[0145] Optionally, the sheath protector 70 further includes a sixth axial limiting portion 73, which protrudes from the outer peripheral surface of the third main body portion 71 and abuts against the distal end face of the housing 11. The sheath protector 70 can be fixed relative to the housing 11 through the abutting action between the third axial limiting portion 72 and the distal sidewall of the second limiting groove 112, and the abutting action between the sixth axial limiting portion 73 and the distal end face of the housing 11.
[0146] In some examples, along the axial direction X, the distance between the proximal end face of the third axial limiting portion 72 and the proximal sidewall of the second limiting groove 112 is equal to the size of the fourth axial limiting portion 52, which is restricted between the proximal end face of the third axial limiting portion 72 and the proximal sidewall of the second limiting groove 112, and the sheath fixing member 50 is fixed relative to the mounting position of the housing 11.
[0147] In other examples, along the axial direction X, the distance between the proximal end face of the third axial limiting portion 72 and the proximal sidewall of the second limiting groove 112 is greater than the size of the fourth axial limiting portion 52, and the mounting position of the sheath fixing member 50 relative to the housing 11 is adjustable along the axial direction X. After the mounting position of the sheath fixing member 50 relative to the housing 11 is determined, the sheath fixing member 50 can be fixed in the housing 11 by means of a fixing member, adhesive or other components.
[0148] In this embodiment, the cooperation of the third axial limiting part 72 and the second limiting groove 112 reduces the risk of the sheath protector 70 detaching from the housing 11, thus improving the connection stability between the sheath protector 70 and the housing 11. The cooperation of the fourth axial limiting part 52 with the third axial limiting part 72 and the second limiting groove 112 also provides axial X-axis limiting for the sheath fixing part 50, thereby reducing axial movement of the sheath fixing part 50 or limiting its axial movement range, further reducing the risk of the sheath fixing part 50 falling off.
[0149] In some embodiments, the sheath retainer 50 includes a second protrusion 53 that protrudes from the outer peripheral surface of the fourth axial limiting portion 52, and the third axial limiting portion 72 has a second recess 74 that is recessed into the proximal end face of the third axial limiting portion 72. Alternatively, the sheath protector 70 includes a second protrusion that protrudes from the inner peripheral surface of the third axial limiting portion 72, and the fourth axial limiting portion 52 has a second recess that is recessed into the distal end face of the fourth axial limiting portion 52.
[0150] The second protrusion 53 is inserted into the second recess 74 to restrict the relative rotation of the third axial limiting portion 72 and the fourth axial limiting portion 52 along the circumference of the housing 11. The cooperation of the second protrusion 53 and the second recess 74 enables circumferential positioning of the sheath tube fixing member 50 and the sheath tube protection member 70.
[0151] In some embodiments, at least two of the connector assembly 12, sheath fixing member 50, and cable fixing member 30 are adjustable in their mounting positions relative to the housing 11 along the axial direction X of the housing 11. This allows for flexible adjustment of the mounting positions of at least two of the connector assembly 12, sheath fixing member 50, and cable fixing member 30 within the housing 11 according to the actual lengths of the first cable 21 and the second cable 24. This reduces the likelihood of the first cable 21 and the second cable 24 being stretched or bent after connection, thus improving the stability and identifiability of the transmitted cable signals.
[0152] In the embodiments of this application, "the mounting position of a component relative to the housing 11 is adjustable along the axial direction X of the housing 11" means that before the component is installed in the housing 11, the mounting position of the component within the housing 11 can be adjusted along the axial direction X of the housing 11. It can be understood that after the mounting position is determined, the component can be fixed relative to the housing 11.
[0153] In some examples, the mounting positions of the connector assembly 12 and the sheath retainer 50 relative to the housing 11 are adjustable along the axial direction X of the housing 11, while the mounting position of the cable retainer 30 within the housing 11 is fixed and not adjustable.
[0154] In other examples, the mounting positions of the connector assembly 12 and the cable retainer 30 relative to the housing 11 are adjustable along the axial direction X of the housing 11, while the mounting position of the sheath retainer 50 within the housing 11 is fixed and not adjustable.
[0155] In some other examples, the mounting positions of the sheath fastener 50 and the cable fastener 30 relative to the housing 11 are adjustable along the axial direction X of the housing 11, while the mounting position of the connector assembly 12 within the housing 11 is fixed and cannot be adjusted.
[0156] In some other examples, the mounting positions of the sheath fastener 50, cable fastener 30, and connector assembly 12 relative to the housing 11 are all adjustable along the axial direction X of the housing 11.
[0157] The assembly process will be described in detail below, taking the installation of cable fastener 30 at the near end of housing 11 as an example.
[0158] During assembly, the cable sleeve 22 and the first cable 21 can be supplied as a single piece, with the distal ends of the first cables 21 extending beyond the cable sleeve 22 by a certain length. After one of the first cables 21 is connected to the first plug 121, the elastic element 1212 of the first plug 121 is pressed to fully compress it, and the first plug 121 is pushed into the protective cavity 41 of the cable protector 40 from the proximal end along the axial direction X until the first plug 121 extends beyond the distal end of the cable protector 40. The remaining first cables 21 are then inserted into the protective cavity 41 from the proximal end of the cable protector 40 along the axial direction X until the remaining first cables 21 extend beyond the distal end of the cable protector 40.
[0159] The connector assembly 12 is placed on the outer side of the distal end of the cable fixing member 30. Then, from the outer side of the outer peripheral surface of the cable fixing member 30, the first cable 21 connected to the connector assembly 12 is inserted into the fixing cavity 31 through the mounting port 32, so that the first cable 21 passes through the fixing cavity 31. From the outer side of the outer peripheral surface of the cable fixing member 30, the remaining first cables 21 are inserted into the fixing cavity 31 through the mounting port 32, so that the remaining first cables 21 pass through the fixing cavity 31. From the proximal end of the cable protection member 40, the distal end of the cable sleeve 22 is pushed into the first cavity 311 along the axial direction X.
[0160] The fluid line 80 is pushed into the protective cavity 41 from the proximal end of the cable protector 40 along the axial direction X until it extends beyond the distal end of the cable protector 40, and then the fluid line 80 is pushed into the second cavity 312 from the proximal end of the cable retainer 30 along the axial direction X.
[0161] The cable fastener 30 is inserted into the cable protector 40, and the fixing cavity 31 is filled with colloid.
[0162] According to the second aspect of this application, referring to Figure 10 This application also provides an interventional device 2, which includes an external device 3 and a cable connection structure 1 provided in any embodiment of the first aspect of this application. One end of the first cable 21 away from the connector assembly 12 is connected to the external device 3.
[0163] Optionally, the interventional device can be a pump-flow assist device. The interventional device 2 also includes a pump-flow conduit 4, with the distal end of the sheath 60 and the distal end of the second cable 24 both connected to the pump-flow conduit 4.
[0164] In some embodiments, the pumping conduit 4 is a blood pumping conduit or a thrombus aspiration conduit.
[0165] In some embodiments, the pump flow conduit 4 includes a pump flow tube body, an impeller, a drive element, and a sensor. The drive element provides power for the operation of the pump flow conduit; exemplarily, the drive element can be used to drive the impeller of the pump flow conduit to rotate, thereby realizing the pumping function of the pump flow tube body. Optionally, the drive element can be a motor. The sensor is connected to a second cable 24 to acquire data information around the drive element and transmit it to an external device on the patient via the second cable 24 and the first cable 21. Exemplarily, the sensor can acquire data information that characterizes the position of the drive element within the patient.
[0166] It is understood that the sensor may also be located at other locations on the pump flow duct to obtain fluid parameters around those locations, and this application does not specifically limit this.
[0167] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A cable connection structure for interventional devices, characterized in that, include: A connecting device, including a housing and a connector assembly installed within the housing; A cable fastener is installed at one end of the housing along its own axial direction. The cable fastener has a fixed cavity defined inside. The fixed cavity passes through the cable fastener along the axial direction of the housing. The cable fastener has an installation port that passes through the cable fastener along the thickness direction of the cable fastener and the axial direction of the housing. as well as A cable assembly includes at least one first cable, one end of which extends through the cable retainer into the housing, and at least a portion of the first cable is connected to the connector assembly. The first cable passes through the fixed cavity, and the circumferential dimension of the mounting opening along the cable fixing member is greater than or equal to the outer diameter of the first cable.
2. The cable connection structure according to claim 1, characterized in that, The cable assembly includes a cable sleeve, the first cable passes through the cable sleeve, one end of the first cable extends out of the cable sleeve, and one end of the cable sleeve is inserted into the fixing cavity and fixedly disposed relative to the cable fixing member.
3. The cable connection structure according to claim 2, characterized in that, The cable sleeve has a first end that is inserted into the fixing cavity, and the first end is spaced apart from the end of the cable fixing member that is close to the connector assembly. The cable sleeve is fixedly connected to the cable fixing member by an adhesive, and at least part of the adhesive fills the gap between the cable sleeve and the cable fixing member and covers the first end of the cable sleeve.
4. The cable connection structure according to claim 3, characterized in that, Also includes: A cable protection component is connected to one end of the housing, and a protective cavity is formed inside the cable protection component, through which the cable sheath passes; At least a portion of the colloid fills the mounting opening and the gap between the cable fastener and the cable protector.
5. The cable connection structure according to claim 4, characterized in that, The housing is provided with a first limiting groove on the inner side of one end near the connector assembly; The cable protection component includes a first main body and a first axial limiting part. The first axial limiting part is disposed at one end of the first main body near the connector assembly and protrudes from the outer peripheral surface of the first main body. The first axial limiting part is at least partially accommodated in the first limiting groove and abuts against the end wall of the first limiting groove away from the connector assembly along the axial direction. The cable fixing component includes a second main body and a second axial limiting part. The second axial limiting part is located at one end of the second main body near the connector assembly and protrudes from the outer peripheral surface of the second main body. The second axial limiting part is located between the first axial limiting part and the first limiting groove along the axial direction near the end wall of the connector assembly.
6. The cable connection structure according to claim 5, characterized in that, The cable protection component includes a first protrusion that protrudes from the inner peripheral surface of the first axial limiting portion, and the second axial limiting portion has a first recess that is recessed in the end face of the second axial limiting portion away from the connector assembly; or, the cable fixing component includes a first protrusion that protrudes from the outer peripheral surface of the second axial limiting portion, and the first axial limiting portion has a first recess that is recessed in the end face of the first axial limiting portion near the connector assembly. The first protrusion is inserted into the first recess to restrict the first axial limiting portion and the second axial limiting portion from rotating relative to each other in the circumferential direction of the housing.
7. The cable connection structure according to claim 3, characterized in that, The fixing cavity includes a first limiting section, a first transition section, and a filling section arranged sequentially along the axial direction of the housing. The cross-sectional area of the first transition section is larger than that of the first limiting section. The cable sleeve is inserted into the first limiting section and the first transition section. The filling section is located between the first end of the cable sleeve and the end of the cable fixing member near the connector assembly. A portion of the colloid is filled in the filling section.
8. The cable connection structure according to claim 2, characterized in that, The fixed cavity includes a first cavity and a second cavity that are interconnected, and the first cavity and the second cavity are arranged in parallel along a direction perpendicular to the axial direction of the housing; The cable sleeve is inserted into the first cavity; The cable connection structure includes a fluid conduit, which passes through the second cavity.
9. The cable connection structure according to any one of claims 1-8, characterized in that, The cable fixing member is a single unit, and it is installed at the near end or far end of the housing; or There are two cable fasteners, which are respectively installed at the near end and the far end of the housing. There are at least two first cables, and at least a portion of the first cables pass through the fixing cavities of the two cable fasteners and are connected by the connector assembly.
10. The cable connection structure according to claim 9, characterized in that, There are two cable fasteners, and there are at least two first cables. The cable connection structure also includes a sheath, which is inserted into one of the cable fasteners. At least a portion of the first cable passes through the sheath and the cable fastener and is connected to the connector assembly.
11. An interventional device, characterized in that, include: External devices; as well as According to any one of claims 1-10, in the cable connection structure, the end of the first cable away from the connector assembly is connected to the external device.