Guide wire adapter

Abstract

This invention proposes a guidewire adapter, comprising an adapter ring, a catheter connecting sleeve, and a body assembly. The adapter ring has a first opening and a second opening that are interconnected. The catheter connecting sleeve is rotatably disposed on the adapter ring and has a rotating end, a connecting end, and a first channel. The rotating end passes through the first opening, and the first channel connects the connecting end and the rotating end. The body assembly passes through the adapter ring and has a connecting end, an adapter end, and a second channel. The connecting end passes through the second opening and is disposed on the rotating end, allowing the catheter connecting sleeve to rotate relative to the connecting end. The second channel connects the connecting end and the adapter end and is interconnected with the first channel. This invention can connect catheters and other instruments, allowing the catheter to rotate 360 ​​degrees without causing multiple connected tubes or wires to become entangled.

Description

[Technical Field]

[0001] This invention relates to a medical device, and more particularly to a multi-purpose adapter for a catheter that can be used to manipulate a guidewire. [Previous Technology]

[0002] A guidewire is a high-precision medical device commonly used in cardiac catheterization, vascular examinations, and interventional vascular treatments. It moves within narrow and tortuous blood vessels, guiding catheters or other medical devices to precise locations during treatment. Specifically, to allow the guidewire to smoothly guide the catheter through the blood vessel, the guidewire must first protrude a certain length from the catheter tip to guide the catheter's direction. During the movement to the desired location, the operator often needs to twist the guidewire or rotate the catheter to maneuver within the narrow passage.

[0003] In the prior art, there is a guidewire manipulator that can be set on the guidewire to assist the operator in applying torque to the guidewire by rotating the manipulator, so that it can move inside the tube; however, it can only assist in providing torque to the guidewire, and still requires additional manpower to assist in the rotation, movement, and fixation of the catheter; therefore, during the operation, additional manpower or additional tools are also required to fix the catheter to facilitate the movement of the guidewire relative to the catheter, which causes inconvenience to the operation. If the catheter can be directly connected to the guidewire manipulator, the aforementioned problems should be improved.

[0004] In addition, when using guidewires, it is sometimes necessary to interface with other instruments to obtain further functional processing, such as cleaning catheters. The interface of these instruments is mostly achieved with the assistance of adapters. If the adapter for interface instruments can be combined with the guidewire manipulator, the number of surgical instruments should be effectively reduced, and the operator should be able to obtain the convenience of surgical operation without having to move.

[0005] However, if the adapter, guidewire manipulator and catheter are directly combined, the operator will rotate the instruments connected to the adapter while rotating the catheter. If these instruments include linear instruments or tubing, they may become entangled and affect the operation.

[0006] It can be seen that if the adapter and guidewire manipulator are to be combined and the catheter connection function is added, further structural design integration is still needed. [Summary of the Invention]

[0007] The main purpose of this invention is to propose a guidewire adapter that can be used to connect catheters or other instruments, and the catheter can be controlled using this invention without mutual interference during operation.

[0008] To achieve the aforementioned objective, the guidewire adapter proposed in this invention comprises: an adapter ring having a first opening and a second opening on its opposite sides, an internal space formed within the adapter ring, and the internal space communicating with the first opening and the second opening; a catheter connecting tube rotatably disposed on the adapter ring, the catheter connecting tube having: a rotating end passing through the first opening and extending into the internal space; a connecting end extending away from the rotating end; and a first channel formed through the catheter connecting tube, the first channel communicating with the connecting end and the rotating end; and a body assembly passing through the adapter ring, the body assembly having: a connecting end passing through the second opening and disposed at the rotating end, the catheter connecting tube being rotatable relative to the connecting end; The body assembly includes: an adapter end, which is the other end relative to the connecting end; and a second channel formed through the body assembly and communicating between the connecting end and the adapter end, the second channel communicating with the first channel; wherein the body assembly includes: a main cylinder passing through the adapter ring, the connecting end being located at one end of the main cylinder, and the main cylinder having: an access end located at one end of the main cylinder relative to the connecting end; a locking groove recessed in the access end, the locking groove including a locking section, the inner diameter of the locking section tapering from the access end toward the connecting end; and a first sub-channel passing through and communicating between the connecting end and the bottom of the locking groove; and a locking cylinder movably passing through the locking groove, the adapter end being located at one end of the locking cylinder, the locking cylinder having: A clamping end located at one end of the locking cylinder relative to the adapter end, the clamping end being located in the locking section of the locking groove; and a second sub-channel penetrating both ends of the locking cylinder and penetrating the clamping end, the inner diameter of the second sub-channel at the position of the clamping end being variable; wherein the first sub-channel and the second sub-channel are interconnected and together form the second channel.

[0009] To achieve the aforementioned objective, another guidewire adapter proposed in this invention comprises: an adapter ring having a first opening and a second opening on its opposite sides, an internal space formed within the adapter ring, and the internal space communicating with the first opening and the second opening; a catheter connecting tube rotatably disposed on the adapter ring, the catheter connecting tube having: a rotating end passing through the first opening and extending into the internal space; a connecting end extending away from the rotating end; and a first channel formed through the catheter connecting tube, the first channel communicating with the connecting end and the rotating end; and a body assembly passing through the adapter ring, the body assembly having: a connecting end passing through the second opening and disposed on the rotating end, the catheter connecting tube being rotatable relative to the connecting end; A transition end, which is the other end relative to the engagement end; and a second channel formed through the body assembly and communicating between the engagement end and the transition end, the second channel communicating with the first channel; and a main cylinder passing through the transition ring, the engagement end and the transition end being located at opposite ends of the main cylinder, the second channel being located in the main cylinder; and the second channel further including an insertion section, the inner diameter of the insertion section tapering from the transition end toward the engagement end; and a locking unit connected to the transition end of the main cylinder, the locking unit having: a first sub-cylinder having: a first end and a second end, respectively located at opposite ends of the first sub-cylinder, the first end passing through the insertion section; A locking groove is recessed at the second end, the locking groove including a locking section whose inner diameter gradually decreases from the second end toward the first end; a third channel penetrating and communicating with the first end and the bottom of the locking groove; and a second sub-tube movably disposed within the first sub-tube, the second sub-tube having: a clamping end and a connecting end located at opposite ends of the second sub-tube, the clamping end being located at the locking section of the locking groove; and a fourth channel penetrating and communicating with the clamping end and the connecting end of the second sub-tube, the inner diameter of the fourth channel at the position of the clamping end being variable; wherein the third channel communicates the fourth channel and the second channel.

[0010] Therefore, the advantage of this invention lies in its diverse functions: this invention can move freely along the guidewire and allows the guidewire to be connected to catheters and other instruments, and the user can manipulate the catheter using this invention. The user can rotate the catheter in its entirety using this invention, thus avoiding interference with other instruments connected to this invention, and preventing multiple tubes or wires from becoming tangled or knotted, thereby achieving convenience when manipulating the guidewire.

[0011] As described above, the guide wire adapter further comprises: a first outer ring rib protruding from the outer peripheral surface of the rotating end and located in the inner space of the adapter ring, the first outer ring rib abutting against the periphery of the first opening.

[0012] As described above, the guide wire adapter further comprises: a second outer ring rib protruding from the outer peripheral surface of the joint end and located in the inner space of the adapter ring, the second outer ring rib abutting against the periphery of the second opening.

[0013] As described above, the guide wire adapter has a recessed groove formed at the rotating end, and the connecting end is rotatably disposed in the groove.

[0014] As described above, the guide wire adapter is provided in such a way that: the bottom of the groove is further recessed to form a limiting groove, and the first channel forms an opening at the bottom of the limiting groove; and the connecting end further has an inner cylinder wall, which surrounds the second channel circumferentially, and one end of the inner cylinder wall is disposed in the limiting groove.

[0015] As described above, the guide wire adapter is wherein the connecting end is recessed to form an outer annular groove, which circumferentially surrounds the first channel.

[0016] As described above, the guide wire adapter includes a handle portion located between the connecting end and the adapter end; the handle portion has a middle section position and two end positions, the middle section position is connected between the two end positions, and the outer diameter of the handle portion gradually decreases from the middle section position to the two end positions respectively.

Implementation Method

[0017] First, please refer to Figures 1 to 4 and Figure 17, which are the first embodiments of a guidewire adapter proposed in this invention. The guidewire adapter of this invention is used to set a guidewire B. The guidewire adapter in this embodiment includes an adapter ring 10, a catheter connecting tube 20, a body assembly 30, and a filling ring 40.

[0018] Please refer to Figures 1 and 3 to 7. The two opposite sides of the adapter ring 10 have a first opening 11 and a second opening 12, respectively. An internal space 13 is formed within the adapter ring 10, and the internal space 13 communicates with the first opening 11 and the second opening 12. Specifically, the adapter ring 10 includes two pieces 101 spaced apart from each other and an annular wall 102. The annular wall 102 connects the periphery of the two pieces 101, thereby forming the internal space 13 between the two pieces 101 and the annular wall 102. The first opening 11 and the second opening 12 are respectively formed on the two pieces 101, so that the internal space 13 communicates with the first opening 11 and the second opening 12, but this is not a limitation.

[0019] Please refer to Figures 1, 3 to 5, 8, and 17. The catheter connecting tube 20 is rotatably disposed on the adapter ring 10. In this embodiment, the catheter connecting tube 20 is cylindrical and has a rotating end 21 and a connecting end 22 facing each other. A first channel 23 is formed through the catheter connecting tube 20 and connects the rotating end 21 and the connecting end 22. When this invention is disposed on the guidewire B, the guidewire passes through the first channel 23, and the user can connect a catheter A to the catheter connecting tube 20.

[0020] Specifically, the rotating end 21 of the conduit connecting tube 20 passes through the first opening 11 of the adapter ring 10 and extends into the internal space 13. In this embodiment, the rotating end 21 has a setting groove 211 and a first outer ring protrusion 24. The setting groove 211 is recessed in the end face of the rotating end 21, and the bottom of the setting groove 211 is further recessed to form a limiting groove 212. However, this is not a limitation. In other embodiments, the setting groove 211 may not be present, or the bottom of the setting groove 211 may not have the limiting groove 212.

[0021] The first outer ring rib 24 protrudes from the outer peripheral surface of the rotating end 21 and is located in the internal space 13 of the adapter ring 10. The first outer ring rib 24 abuts against the periphery of the first opening 11, thereby allowing the conduit connecting tube 20 to rotate relative to the adapter ring 10 without separating from the adapter ring 10.

[0022] The connecting end 22 extends away from the rotating end 21 and is used to connect the conduit. Specifically, in this embodiment, the end face of the connecting end 22 is recessed to form an outer annular groove 221. The outer annular groove 221 surrounds the first channel 23 and is separated from the first channel 23. In this way, the outer annular groove 221 allows the conduit A covering the guide wire B to be connected therein. Furthermore, in this embodiment, the groove wall of the outer annular groove 221 is formed with a threaded structure, so that it can be connected to the conduit A by screwing, but this is not a limitation.

[0023] The first channel 23 is formed through the conduit connecting tube 20 and connects the connecting end 22 and the rotating end 21. In this embodiment, the first channel 23 forms an opening at the bottom of the limiting groove 212, and the first channel 23 is interconnected with the setting groove 211 through the limiting groove 212, but is not limited thereto.

[0024] Next, please refer to Figures 1, 3 to 5, 9 and 10. The body assembly 30 includes a connecting end 311, a transition end 321 and a second channel 33. The connecting end 311 and the transition end 321 are located at opposite ends of the body assembly 30. The second channel 33 passes through the body assembly 30 and connects the connecting end 311 and the transition end 321. The body assembly 30 is provided with the connecting end 311 passing through the second opening 12 of the transition ring 10 and disposed at the rotating end 21 of the conduit connecting tube 20. The conduit connecting tube 20 can rotate relative to the connecting end 311, and the second channel 33 is interconnected with the first channel 23.

[0025] Specifically, in this embodiment, the body assembly 30 may include a main cylinder 31 and a locking cylinder 32, wherein the connecting end 311 is located in the main cylinder 31, and the connecting end 321 is located in the locking cylinder 32.

[0026] The main tube 31 passes through the adapter ring 10, and the connecting end 311 is located at one end of the main tube 31. The main tube 31 further has an access end 312 and a first sub-channel 313. Specifically, the connecting end 311 and the access end 312 are located at opposite ends of the main tube 31, and the first sub-channel 313 passes through and connects the connecting end 311 and the access end 312. The connecting end 311 passes through the second opening 12 of the adapter ring 10 and extends into the internal space 13. The connecting end 311 is rotatably disposed in the mounting groove 211 of the rotating end 21 of the conduit connecting tube 20 relative to the conduit connecting tube 20.

[0027] The access end 312 is located at one end of the main cylinder 31 relative to the connecting end 311, and a locking groove 3121 is recessed in the end face of the access end 312. The locking groove 3121 includes a locking section 3122, the inner diameter of which gradually decreases from the access end 312 toward the connecting end 311. The first sub-channel 313 is part of the second channel 33, and the first sub-channel 313 penetrates and connects the connecting end 311 and the bottom of the locking groove 3121, thereby enabling the first sub-channel 313 and the locking groove 3121 to communicate with each other.

[0028] In this embodiment, the connecting end 311 may further have an inner cylinder wall 3111 and a second outer ring rib 3112. The inner cylinder wall 3111 circumferentially surrounds the second channel 33, and one end of the inner cylinder wall 3111 is provided in the limiting groove 212 in the setting groove 211 of the conduit connecting cylinder 20, thereby aligning the first channel 23 and the second channel 33 with each other and preventing the conduit connecting cylinder 20 from shifting relative to the body assembly 30 when it rotates, but this is not a limitation.

[0029] The second outer ring rib 3112 protrudes from the outer peripheral surface of the joint end 311 and is located in the inner space 13 of the transition ring 10. The second outer ring rib 3112 abuts against the periphery of the second opening 12, thereby preventing the body assembly 30 from detaching from the second opening 12, but not limited thereto.

[0030] The locking cylinder 32 is movably disposed in the locking groove 3121 of the main cylinder 31. The adapter end 321 is located at one end of the locking cylinder 32, and the locking cylinder 32 further has a clamping end 322 and a second sub-channel 323. In this embodiment, the locking cylinder 32 is screwed into the locking groove 3121 of the main cylinder 31, thereby facilitating the user to adjust the amount of movement of the locking cylinder 32 in the locking groove 3121, but this is not a limitation. The clamping end 322 is located at one end of the locking cylinder 32 relative to the adapter end 321, and the clamping end 322 is located in the locking section 3122 of the locking groove 3121. The second sub-channel 323 is also part of the second channel 33. The second sub-channel 323 passes through both ends of the locking cylinder 32 and through the clamping end 322, and the inner diameter of the second sub-channel 323 at the position of the clamping end 322 is variable. The first sub-channel 313 and the second sub-channel 323 are interconnected and together form the second channel 33.

[0031] In this embodiment, the clamping end 322 includes a plurality of clamping blocks 3221 spaced apart from each other, and the clamping blocks 3221 surround the second sub-channel 323. The clamping blocks 3221 are spaced apart from each other in the circumferential and radial directions of the second sub-channel 323, and each clamping block 3221 is elastic and can deform slightly in the direction of the force when the clamping block 3221 is subjected to a pushing force. Therefore, when the locking cylinder 32 moves relative to the locking groove 3121, the clamping block 3221 is pushed by the inner peripheral wall of the locking section 3122, which causes the clamping block 3221 to deform radially inward, further reducing the inner diameter of the second sub-channel 323 at the position of the clamping end 322, thereby clamping the guide wire and locking the position of the guide wire. However, the form of the clamping end 322 is not limited to this.

[0032] The main body assembly 30 may further include a grip portion 34. The grip portion 34 is located between the connecting end 311 and the transition end 321, and in this embodiment, the grip portion 34 is disposed on the locking cylinder 32. The grip portion 34 has a middle section position 341 and two end positions 342, the middle section position 341 is connected to the two end positions 342, and the outer diameter of the grip portion 34 gradually decreases from the middle section position 341 to the two end positions 342, but this is not a limitation, and in other embodiments, the grip portion 34 may not be present.

[0033] The filling ring 40 is disposed between the joint end 311 and the bottom surface of the setting groove 211, and fills the space between the joint end 311 and the bottom surface of the setting groove 211, thereby stabilizing the position of the body assembly 30 relative to the conduit connecting cylinder 20 in the axial direction, but not limited thereto.

[0034] Please refer to Figures 1, 4 to 6, and 17. In this embodiment, when in use, the guide wire B can be inserted from the connecting end 22 of the catheter connecting cylinder 20 into the first channel 23. The guide wire B then passes through the first channel 23 into the second channel 33 of the body assembly 30, and then exits from the adapter end 321 of the body assembly 30. In this way, the present invention can move relative to the guide wire B along the extension direction of the guide wire B. Furthermore, the user can connect the catheter A to the connecting end 22 of the catheter connecting cylinder 20. Specifically, in this embodiment, the user can use the connecting sleeve (not shown in the figure) configured on the catheter A to connect to the outer annular groove 221 in a screw-on manner. Since the catheter A is fixedly connected to the catheter connecting cylinder 20, and the guide wire B can move through the present invention, the guide wire B can move relative to the catheter A. When the user wants to fix the extension of one end of guidewire B beyond the extension of catheter A, the locking cylinder 32 can be moved relative to the main cylinder 31. This causes the clamping block 3221 of the clamping end 322 to be pushed by the inner wall surface of the locking section 3122 of the locking groove 3121, reducing the inner diameter of the second channel 33 in the locking section 3122. Therefore, the clamping block 3221 can clamp the guidewire B and fix the relative position between the guidewire B and this invention, that is, fix the amount of protrusion of one end of guidewire B relative to catheter A. On the other hand, the adapter end 321 of the main body assembly 30 can be provided for connecting other instruments, tubing, or lines (such as instrument C in FIG. 17). The form of the adapter end 321 can be adjusted according to the actual connection requirements.

[0035] After setup, when the user wants to rotate catheter A, they can grasp the handle 34 of the main body assembly 30 with one hand and rotate the catheter connecting sleeve 20 with the other hand to rotate catheter A in a full circumference. Since the catheter connecting sleeve 20 is connected to the main body assembly 30 through the adapter ring 10, the catheter connecting sleeve 20 can rotate relative to the adapter ring 10, and the adapter ring 10 can also rotate relative to the main body assembly 30. The main body assembly 30 is connected to the catheter connecting sleeve 20 by passing through the setting groove 211. Therefore, the catheter connecting sleeve 20 can rotate freely relative to the main body assembly 30 without causing the main body assembly 30 to rotate together, thereby avoiding the situation where other instruments C connected to the main body assembly 30 become entangled. On the other hand, when the user wants to twist guidewire B, they can still twist the main body assembly 30 to further apply torque to guidewire B.

[0036] Furthermore, in this embodiment, the inner wall 3111 of the joint end 311 of the body assembly 30 is disposed in the limiting groove 212 at the bottom of the setting groove 211, thereby preventing the first channel 23 and the second channel 33 from disengaging when the conduit connecting cylinder 20 rotates relative to the body assembly 30. In addition, since the first outer ring rib 24 of the conduit connecting cylinder 20 abuts against the periphery of the first opening 11, and the second outer ring rib 3112 of the body assembly 30 abuts against the periphery of the second opening 12, the conduit connecting cylinder 20 and the body assembly 30 will not disengage from the adapter ring 10 and can rotate stably. In addition, the filling ring 40 disposed between the joint end 311 and the bottom of the setting groove 211 can also stabilize the relative position of the conduit connecting cylinder 20 and the body assembly 30 in the axial direction.

[0037] Next, please refer to Figures 11 to 14, which show the second embodiment of this invention, which has an adapter ring 10, a catheter connecting tube 20, and a body assembly 30A. The second embodiment is largely the same as the first embodiment, but the main difference lies in the body assembly 30A. Simply put, in the second embodiment, the body assembly 30A separates the function of interconnecting with the catheter connecting tube 20 and the function of locking the guidewire length. In the second embodiment, the body assembly 30A has a main tube 31A, and this embodiment may further include a locking unit 50A as shown in Figures 15 to 16.

[0038] The main cylinder 31A of the second embodiment is similar to the main cylinder 31 of the first embodiment, but does not have the locking groove 3121. Specifically, in this embodiment, the main cylinder 31A passes through the adapter ring 10, the engaging end 311A ​​and the adapter end 314A are located at opposite ends of the main cylinder 31A, and the second channel 33A is located in the main cylinder 31A. The second channel 33A further includes an insertion section 331A, the inner diameter of which gradually decreases from the adapter end 314A toward the engaging end 311A.

[0039] The locking unit 50A is connected to the adapter end 314A of the main cylinder 31A. In this embodiment, the locking unit 50A has a first sub-cylinder 51A and a second sub-cylinder 52A.

[0040] The first sub-tube 51A has a first end 511A, a second end 512A, a locking groove 5121A, and a third channel 513A. The first end 511A and the second end 512A are located at opposite ends of the first sub-tube 51A, and the first end 511A passes through the insertion section 331A, thereby connecting the first sub-tube 51A to the main tube 31A. The locking groove 5121A is recessed in the second end 512A and includes a locking section 5122A. The inner diameter of the locking section 5122A gradually narrows from the second end 512A toward the first end 511A, and the third channel 513A passes through and connects the first end 511A and the bottom of the locking groove 5121A.

[0041] The second sub-tube 52A is movably inserted through the first sub-tube 51A. The second sub-tube 52A has a clamping end 521A, a connecting end 522A, and a fourth channel 523A. The clamping end 521A and the connecting end 522A are located at opposite ends of the second sub-tube 52A, and the clamping end 521A passes through the locking section 5122A of the locking groove 5121A. The fourth channel 523A passes through and connects the clamping end 521A and the connecting end 522A of the second sub-tube 52A. The inner diameter of the fourth channel 523A at the position of the clamping end 521A is variable. The third channel 513A connects the fourth channel 523A and the second channel 33A, thereby allowing the guide wire to pass through the fourth channel 523A, the third channel 513A, and the second channel 33A.

[0042] In the second embodiment, the relationship between the first sub-tube 51A and the second sub-tube 52A is similar to that between the main tube 31 and the locking tube 32 in the first embodiment. The locking groove 5121A of the first sub-tube 51A corresponds to the locking groove 3121 of the main tube 31 in the first embodiment, while the clamping end 521A of the second sub-tube 52A corresponds to the clamping end 322 of the locking tube 32 in the first embodiment. Furthermore, in this embodiment, the grip portion 524A is provided on the second sub-tube 52A, but this is not a limitation.

[0043] The second embodiment is used in a manner largely similar to the first embodiment, with the main difference being that the function of locking the guidewire protrusion length relative to the catheter is provided by the locking unit 50A. Furthermore, other instruments can be connected not only to the adapter end 314A of the main tube 31A, but also to the connecting end 522A of the locking unit 50A. Therefore, the second embodiment provides more diverse instrument connections. Specifically, if the user does not require catheter insertion, the locking unit 50A can be directly used on the guidewire to control and apply torque to the guidewire, or to connect other instruments. On the other hand, if the user does not require locking the guidewire length relative to the catheter, the locking unit 50A can be removed, and other instruments can be connected to the adapter end 314A of the main tube 31A. In this way, the user can still freely rotate the catheter connected to the catheter connecting tube 20 throughout its full circumference without affecting other instruments connected to the main tube 31A. In addition, the adapter end 314A of the second embodiment can also be used to connect existing guidewire torque manipulators, but is not limited thereto.

[0044] The guidewire adapter of this invention can move freely along the guidewire, connect catheters and other instruments, and fix the length of the guidewire protruding from the catheter. Furthermore, the user can rotate the catheter circumferentially without affecting other instruments connected to this invention, preventing multiple tubes or wires from becoming tangled or knotted. In addition, the catheter connector 20 of this invention can rotate stably relative to the main body components 30 and 30A, ensuring stable connection between the first channel 23 and the second channel 33 without affecting the guidewire. In summary, this invention possesses diverse functions, effectively reducing the complexity of catheter and / or instrument connections during surgery, reducing manpower required for assistance and setup of various instruments, and providing the user with a point of force application when manipulating the guidewire and catheter, bringing convenience to surgeries requiring high concentration and precision. [Simplified Explanation of the Diagram]

[0045] Figure 1 is a perspective view of the first embodiment of the present invention. Figure 2 is a perspective view of the first embodiment of the present invention from another angle. Figure 3 is an exploded perspective view of the first embodiment of the present invention. Figure 4 is a view of Figure 3 from another perspective. Figure 5 is a side sectional view of the first embodiment of the present invention. Figure 6 is a partially enlarged side sectional view of the first embodiment of the present invention, showing the connecting end disposed at the rotating end. Figure 7 is a perspective view of the adapter ring of the first embodiment of the present invention. Figure 8 is a perspective view of the conduit connecting tube of the first embodiment of the present invention. Figure 9 is a perspective view of the main tube of the first embodiment of the present invention. Figure 10 is a perspective view of the locking tube of the first embodiment of the present invention. Figure 11 is a perspective view of the second embodiment of the present invention without the locking unit connected. Figure 12 is an exploded perspective view of Figure 11. Figure 13 is a perspective view of the body assembly of the second embodiment of the present invention. Figure 14 is a side sectional view of Figure 11. Figure 15 is a perspective view of the second embodiment of the present invention, which includes the locking unit. Figure 16 is a side sectional view of Figure 15. Figure 17 is a schematic diagram of the use of the first embodiment of this invention.

Claims

1. A guidewire adapter, comprising: an adapter ring having a first opening and a second opening on opposite sides, an internal space formed within the adapter ring and communicating with the first opening and the second opening; a catheter connecting tube rotatably disposed on the adapter ring, the catheter connecting tube having: a rotating end passing through the first opening and extending into the internal space; a connecting end extending away from the rotating end; and a first channel formed through the catheter connecting tube, the first channel communicating with the connecting end and the rotating end; and a body assembly disposed on the adapter ring, the body assembly having: a connecting end passing through the second opening and disposed on the rotating end, the catheter connecting tube being rotatable relative to the connecting end; a connecting end being the other end relative to the connecting end; and a second channel formed through the body assembly and communicating with the connecting end and the connecting end, the second channel communicating with the first channel; wherein... The body assembly includes: a main cylinder that passes through the adapter ring, the engaging end being located at one end of the main cylinder, and the main cylinder having: an access end located at one end of the main cylinder opposite to the engaging end; a locking groove recessed in the access end, the locking groove including a locking section whose inner diameter tapers from the access end toward the engaging end; and a first sub-channel that penetrates and communicates with the engaging end and the bottom of the locking groove; The locking cylinder is movably disposed within the locking groove, the adapter end being located at one end of the locking cylinder. The locking cylinder has: a clamping end located at one end of the locking cylinder opposite to the adapter end, the clamping end being located in the locking section of the locking groove; and a second sub-channel penetrating both opposite ends of the locking cylinder and penetrating the clamping end, the inner diameter of the second sub-channel at the position of the clamping end being variable; wherein the first sub-channel and the second sub-channel are interconnected and together form the second channel.

2. A guidewire adapter, comprising: an adapter ring having a first opening and a second opening on opposite sides, an internal space formed within the adapter ring and communicating with the first opening and the second opening; a catheter connecting tube rotatably disposed on the adapter ring, the catheter connecting tube having: a rotating end passing through the first opening and extending into the internal space; a connecting end extending away from the rotating end; and a first channel formed through the catheter connecting tube, the first channel communicating with the connecting end and the rotating end; a body assembly passing through the adapter ring, the body assembly having: a connecting end passing through the second opening and disposed on the rotating end, the catheter connecting tube being rotatable relative to the connecting end; and an adapter end being the other end relative to the connecting end. A second channel, formed through the body assembly and connecting the joint end and the adapter end, the second channel communicating with the first channel; and a main cylinder, passing through the adapter ring, the joint end and the adapter end located at opposite ends of the main cylinder, the second channel located in the main cylinder; and the second channel further including an insertion section, the inner diameter of the insertion section tapering from the adapter end toward the joint end; and a locking unit connected to the adapter end of the main cylinder, the locking unit having: a first sub-cylinder having: a first end and a second end, respectively located at opposite ends of the first sub-cylinder, the first end passing through the insertion section; a locking groove recessed in the second end, the locking groove including a locking section, the inner diameter of the locking section tapering from the second end toward the first end; and a third channel, passing through and communicating with the first end and the bottom of the locking groove; and a second sub-cylinder movably passing through the first sub-cylinder, the second sub-cylinder having: A clamping end and a connecting end are respectively located at opposite ends of the second sub-cylinder, the clamping end being located in the locking section of the locking groove; and a fourth channel penetrating and communicating between the clamping end and the connecting end of the second sub-cylinder, the inner diameter of the fourth channel at the position of the clamping end being variable; wherein, The third channel connects the fourth channel and the second channel.

3. The guidewire adapter as described in claim 1 or 2, wherein, The conduit connector further comprises: a first outer ring rib, which protrudes from the outer peripheral surface of the rotating end and is located in the internal space of the adapter ring, the first outer ring rib abutting against the periphery of the first opening.

4. The guide wire adapter as described in claim 1 or 2, the body assembly further comprising: a second outer annular rib protruding from the outer peripheral surface of the engagement end and located in the internal space of the adapter ring, the second outer annular rib abutting against the periphery of the second opening.

5. The guidewire adapter as described in claim 1 or 2, wherein, The rotating end is recessed to form a groove, and the mating end is rotatably disposed in the groove.

6. The guidewire adapter as described in claim 5, wherein: The bottom of the groove is further recessed to form a limiting groove, and the first channel forms an opening at the bottom of the limiting groove; and the joint end further has an inner cylinder wall, which surrounds the second channel circumferentially, and one end of the inner cylinder wall is disposed in the limiting groove.

7. The guidewire adapter as described in claim 1 or 2, wherein, The connection end is recessed to form an outer annular groove, which circumferentially surrounds the first channel.

8. The guidewire adapter as described in claim 1 or 2, wherein, The body assembly includes a grip portion located between the connecting end and the adapter end; the grip portion has: a middle section position and two end positions, the middle section position being connected between the two end positions, and the outer diameter of the grip portion gradually decreasing from the middle section position to the two end positions respectively.

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