Bladder blood clot removing device

Abstract

The utility model discloses a bladder blood clot removing device. A bladder blood clot removing device comprises a clamping jaw used for crushing blood clots, a guide wire used for being connected with the clamping jaw, a push rod used for being connected with the guide wire and pushing the guide wire to move, a reset spring used for resetting the push rod, a sheathing canal used for installing the push rod, the guide wire and the reset spring and a rear cover used for limiting displacement of the push rod. The sheath tube is provided with a flushing channel and a liquid suction channel, a flushing connector used for being communicated with the flushing channel and a liquid suction connector communicated with the liquid suction channel are arranged on the sheath tube, the rear cover and the sheath tube are combined to form an installation cavity, the rear cover is detachably installed on the sheath tube, the push rod is arranged in the installation cavity, the reset spring is arranged on the push rod in a sleeving mode, and the rear end of the guide wire is fixed to the push rod. The front end of the guide wire extends into the liquid suction channel, the clamping jaw is arranged on the guide wire, and the clamping jaw is made of memory metal. According to the bladder blood clot removing device, large blood clots can be manually crushed, and it is ensured that the blood clots are completely removed.

Description

Technical Field

[0001] This utility model relates to the field of bladder blood clot removal technology, and in particular to a bladder blood clot removal device. Background Technology

[0002] Clinically, blood clots formed in the bladder can obstruct the urethra, preventing urine from being expelled and causing urinary retention. Emergency treatment is usually initiated first, involving the insertion of a catheter to drain the urine from the bladder. Then, the blood clots are flushed out. In severe cases, surgery is required to open the bladder and remove the clots. Current bladder clot removal devices primarily use a flushing channel to break up large clots into smaller ones, while a suction channel removes the flushing fluid and the smaller clots. However, some clots may remain unbroken, and continuous flushing can put pressure on the bladder, causing discomfort to the patient. Utility Model Content

[0003] The technical problem to be solved by this invention is to provide a bladder blood clot removal device that can manually break up blood clots.

[0004] To address the aforementioned problems, this utility model provides a bladder blood clot removal device. The device includes grippers for breaking up blood clots, a guide wire connected to the grippers, a push rod connected to and moving the guide wire, a reset spring for resetting the push rod, a sheath for mounting the push rod, guide wire, and reset spring, and a rear cover for limiting the displacement of the push rod. The sheath has a flushing channel and a suction channel, and is equipped with a flushing connector communicating with the flushing channel and a suction connector communicating with the suction channel. The rear cover and the sheath form a mounting cavity, and the rear cover is detachably mounted on the sheath. The push rod is located within the mounting cavity, the reset spring is sleeved on the push rod, the rear end of the guide wire is fixed to the push rod, and the front end of the guide wire extends into the suction channel. The grippers are located on the guide wire and are made of shape memory metal. When the grippers are within the suction channel, they contract and deform; when the grippers are outside the suction channel, they automatically unfold.

[0005] Furthermore, the grippers are made of a nickel-titanium alloy.

[0006] Furthermore, the sheath is also provided with an illumination channel and an image channel. The illumination channel is equipped with a light source for generating light and an optical fiber for transmitting light, while the image channel is equipped with an image transmission optical fiber for transmitting images and an eyepiece for observation.

[0007] Furthermore, the sheath includes a tube body and a mounting base, the rear cover is screwed onto the mounting base, the mounting base has a guide groove, and the bottom of the guide groove is provided with a through hole, the through hole connecting the guide groove and the liquid suction channel.

[0008] Furthermore, the guide groove is provided with a first guide slope for guiding the gripper at one end near the rear cover, and a second guide slope for guiding the gripper at one end near the liquid suction channel.

[0009] Furthermore, the mounting base has a positioning step for positioning the rear cover.

[0010] Furthermore, the rear cover is provided with a through hole for the push rod to extend out.

[0011] Furthermore, the rear cover is also provided with a pressure plate for applying pressure when pressing the push rod.

[0012] Furthermore, the grippers are at least three in number.

[0013] Furthermore, the vertical distance from each of the grippers to the guidewire axis is greater than the diameter of the suction channel.

[0014] This utility model discloses a bladder blood clot removal device. Pressing the push rod causes the push rod to move the guide wire to the front end. The guide wire moves the clamping jaws to the front end. Under the negative pressure of the suction channel, when the blood clot is inside the clamping jaws, it can adhere to the clamping jaws. When the push rod is released, the blood clot moves with the clamping jaws. The clamping jaws are squeezed and deformed by the suction channel, causing the clamping jaws to squeeze the blood clots, thereby breaking up larger blood clots and forming smaller blood clots, which can then be discharged from the suction channel. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a preferred embodiment of the bladder blood clot removal device of this utility model.

[0016] Figure 2 This is a cross-sectional view of a bladder blood clot removal device according to the present invention.

[0017] Figure 3 This is a cross-sectional view of the push rod of the bladder blood clot removal device of this utility model after it has been pressed.

[0018] Figure 4 This is a schematic diagram of the structure where the light source and the cavity are located in the lighting channel.

[0019] Figure 5 This is a schematic diagram of the gripper located inside the suction channel.

[0020] Figure 6 This is a schematic diagram of the structure of the exaggerated aspirator located outside the suction channel.

[0021] The meanings of the labels in the attached diagram are as follows:

[0022] Sheath 1, tube body 11, mounting base 12, main body 121, connecting section 122, guide groove 1201, first guide slope 12011, second guide slope 12012, perforation 122, lighting channel 101, image channel 102, flushing channel 103, suction channel 104, gripper 2, guide wire 3, push rod 4, retaining ring 41, return spring 5, rear cover 6, mounting groove 61, finger pressure plate 62, light source 71, optical fiber 72, eyepiece 73, image transmission optical fiber 74, flushing connector 81, suction connector 82, sealing ring 9. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] like Figures 1 to 4As shown, a preferred embodiment of the bladder blood clot removal device of this utility model includes a sheath 1, grippers 2, guide wire 3, push rod 4, return spring 5, and rear cover 6. The end of the sheath 1 that can extend into the bladder is the front end, and the other end is the rear end. The sheath 1 is provided with an illumination channel 101, an image channel 102, a flushing channel 103, and a suction channel 104. One end of each of the illumination channel 101, image channel 102, flushing channel 103, and suction channel 104 is located at the front end of the sheath 1 and can directly communicate with the outside of the sheath 1. Thus, when the sheath 1 is inserted into the bladder, the illumination channel 101, image channel 102, flushing channel 103, and suction channel 104 can all contact the bladder. A light source 71 and an optical fiber 72 are installed in the illumination channel 101. The light source 71 generates cold light, and the optical fiber 72 transmits the light to the bladder, enabling the front end of the sheath 1 to provide illumination to the bladder. An eyepiece 73 and an image transmission fiber 7472 are installed in the image channel 102, allowing observation of the bladder through the eyepiece 73. The sheath 1 is equipped with a flushing connector 81 and a suction connector 82. The rear end of the flushing channel 103 is connected to the flushing connector 81, which connects to an external flushing fluid supply device via a connecting pipe, thereby introducing the flushing fluid into the flushing channel 103. Alternatively, the flushing connector 81 can be directly connected to the supply device, allowing the flushing fluid to enter the bladder cavity through the flushing channel 103 and flush out blood clots. The rear end of the suction channel 104 is connected to the suction connector 82, which connects to an external suction device via a connecting pipe. The suction device draws out the liquid from the suction channel 104, thereby removing the flushing fluid and blood clots from the bladder. The rear cover 6 is mounted on the sheath 1, and the rear cover 6 and the sheath 1 together form a mounting cavity. The push rod 4 is disposed in the mounting cavity, and the return spring 5 is sleeved on the push rod 4. The return spring 5 is also located in the mounting cavity. The push rod 4 can move within the mounting cavity, and the rear end of the push rod 4 is located outside the rear cover 6. The return spring 5 is used to reset the push rod 4; the push rod 4 can be pushed to move by pressing it. The rear cover 6 is also used to restrict the movement of the push rod 4 and prevent the push rod 4 from detaching from the mounting cavity under the action of the return spring 5. The rear end of the guide wire 3 is fixed on the push rod 4, and the movement of the push rod 4 can drive the guide wire 3 to move. The front end of the guide wire 3 passes through and extends into the liquid suction channel 104.The grippers 2 are fixed to the guide wire 3. There are three grippers 2, evenly distributed on the guide wire 3. When the guide wire 3 is pushed by the push rod 4, it moves the grippers 2. The grippers 2 are made of shape memory metal, which allows them to deform when compressed and unfold when not compressed. When the grippers 2 are inside the suction channel 104, they contract and deform. When the grippers 2 are pushed by the push rod 4 to the front end of the suction channel 104, i.e., outside the sheath 1, they unfold. The blood clot is attached to the grippers 2 under the suction of the suction channel 104. Then, the push rod 4 moves the grippers 2 back into the suction channel 104, where the blood clot is crushed and broken into smaller clots that can be discharged through the suction channel 104. In other embodiments, there may be two or more grippers 2, depending on the requirements.

[0025] Both the gripper 2 and the guidewire 3 are made of nickel-titanium alloy, giving them good shape memory and biocompatibility. The vertical distance from the axis of each gripper 2 to the guidewire 3 is greater than the diameter of the suction channel 104, ensuring that the gripper 2 is deformed when it enters the suction channel 104 from outside the sheath 1. Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, when the gripper 2 is located in the suction channel 104, the front end of the gripper 2 is close to the central axis of the guide wire 3, which ensures that the blood clot can be better squeezed and broken.

[0026] The sheath 1 includes a tube body 11 and a mounting base 12. The diameter of the tube body 11 is smaller than the diameter of the mounting base 12, allowing the tube body 11 to extend into the bladder. The mounting base 12 can accommodate a rear cover 6. The flushing connector 81 and the suction connector 82 are located on the mounting base 12, and the rear cover 6 is screwed onto the mounting base 12. The mounting base 12 has a guide groove, and the bottom of the guide groove is provided with a through hole 122. The through hole 122 connects the guide groove and the suction channel 104, allowing the gripper 2 to be inserted from the guide groove into the suction channel 104, facilitating the installation of the gripper 2. The diameter of the through hole 122 is larger than the diameter of the guide wire 3 but smaller than the diameter of the push rod 4, allowing the gripper 2 to be quickly inserted into the suction channel 104 while preventing liquid in the suction channel 104 from entering the guide groove. A first guide slope is provided at one end of the guide groove near the rear cover 6. The first guide slope is used to guide the deformation of the gripper 2, making it easier to insert the gripper 2 into the guide groove. A second guide slope is provided at one end of the guide groove near the suction channel 104. The second guide slope is used to guide the deformation of the gripper 2, making it easier to insert the gripper 2 into the guide groove. Providing the first and second guide slopes on the guide groove makes it easier to install the gripper 2 and guide wire 3 into the suction channel 104. The mounting base 12 includes a body 121 and a connecting section 122. The body 121 and the connecting section 122 are integrally formed. The body 121 is connected to the tube body 11. The flushing connector 81 and the suction connector 82 are both located on the body 121. The connecting section 122 is used to connect to the rear cover 6. The diameter of the connecting segment 122 is smaller than the diameter of the body 121, thus forming a positioning step at the connection between the connecting segment 122 and the connecting body 121. The positioning step is used to position the back cover 6. The connecting segment 122 is provided with external threads, and the back cover 6 is provided with internal threads and screwed onto the connecting segment 122.

[0027] The rear cover 6 has a mounting groove 61. After the rear cover 6 is screwed onto the mounting base 12, it seals the mounting groove 61 to form a mounting cavity, and the push rod 4 is placed inside the mounting cavity. The rear cover 6 is provided with a through hole for the push rod 4 to extend out of the rear cover 6, making it easier to press the push rod 4 from outside the rear cover 6. The rear cover 6 is also provided with a finger pressure plate 62, which makes it easier to press the push rod 4 with your fingers.

[0028] A retaining ring 41 is provided on the push rod 4, which abuts against the return spring 5, ensuring that the return spring 5 remains firmly against the push rod 4 and does not detach from the push rod 4. A sealing groove is provided on the push rod 4, and a sealing ring 9 is provided in the sealing groove. The outer side of the sealing ring 9 abuts against the inner wall of the guide groove, ensuring that the liquid in the suction channel 104 does not leak from the end of the mounting base 12 near the rear cover 6. The distance between the front end of the first guide slope and the rear end of the second guide slope is greater than the distance the push rod 4 moves within the receiving cavity, ensuring that the sealing ring 9 can always abut against the side wall of the guide groove within the guide groove, thereby preventing liquid leakage.

[0029] In use, the flushing fluid enters through the flushing connector 81 and then flows into the bladder through the flushing channel 103. The flushing fluid impacts the blood clot, breaking it into smaller clots, which are then sucked away by the suction of the suction channel 104. For blood clots that cannot be sucked in, pressing the push rod 4 causes it to push the guide wire 3. The guide wire 3 pushes the clamp 2, causing it to extend out of the sheath 1. Since the clamp 2 is pushed out from inside the suction channel 104, it only needs to cover the blood clots that cannot be discharged, and the blood clots will adhere stably inside the clamp 2. Then, the push rod 4 is released, and the push rod 4 is reset by the action of the return spring 5. The reset of the push rod 4 causes the guide wire 3 and the clamp 2 to reset. During the reset of the clamp 2, the clamp 2 will contract due to the compression of the suction channel 104, thereby crushing the blood clot and forcibly pulling the blood clot into the suction channel 104, ensuring that all the broken blood clots are discharged by the suction channel 104 and are not left in the bladder. Meanwhile, the sheath 1, rear cover 6, and push rod 4 are designed to be detachable, so that the inside of the sheath 1 and the disassembled parts can be disinfected and cleaned, and can be reused after disinfection.

[0030] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, whether directly or indirectly applied to other related technical fields, shall also be within the patent protection scope of this utility model.

Claims

1. A bladder blood clot removal device, characterized in that: The device includes grippers for breaking up blood clots, a guidewire connected to the grippers, a push rod connected to and moving the guidewire, a return spring for resetting the push rod, a sheath for mounting the push rod, guidewire, and return spring, and a rear cover for limiting the displacement of the push rod. The sheath has a flushing channel and a suction channel, and is provided with a flushing connector communicating with the flushing channel and a suction connector communicating with the suction channel. The rear cover and the sheath form a mounting cavity, and the rear cover is detachably mounted on the sheath. The push rod is located in the mounting cavity, the return spring is sleeved on the push rod, the rear end of the guidewire is fixed to the push rod, and the front end of the guidewire extends into the suction channel. The grippers are located on the guidewire and are made of shape memory metal. When the grippers are located inside the suction channel, they contract and deform; when the grippers are outside the suction channel, they automatically unfold.

2. The bladder blood clot removal device as described in claim 1, characterized in that: The grippers are made of nickel-titanium alloy.

3. The bladder blood clot removal device as described in claim 1, characterized in that: The sheath is also provided with an illumination channel and an image channel. The illumination channel is equipped with a light source for generating light and an optical fiber for transmitting light. The image channel is equipped with an image transmission optical fiber for transmitting images and an eyepiece for observation.

4. A bladder blood clot removal device as described in claim 1 or 3, characterized in that: The sheath includes a tube body and a mounting base. The rear cover is screwed onto the mounting base. The mounting base has a guide groove, and the bottom of the guide groove is provided with a through hole, which connects the guide groove and the liquid suction channel.

5. The bladder blood clot removal device as described in claim 4, characterized in that: The guide groove is provided with a first guide slope for guiding the gripper at one end near the rear cover, and a second guide slope for guiding the gripper at one end near the liquid suction channel.

6. The bladder blood clot removal device as described in claim 4, characterized in that: The mounting base has a positioning step for positioning the rear cover.

7. The bladder blood clot removal device as described in claim 1, characterized in that: The rear cover is provided with a through hole for the push rod to extend out.

8. The bladder blood clot removal device as described in claim 1, characterized in that: The rear cover is also equipped with a pressure plate for applying pressure when pressing the push rod.

9. The bladder blood clot removal device as described in claim 1, characterized in that: The gripper has at least three grippers.

10. The bladder blood clot removal device as described in claim 9, characterized in that: The vertical distance from each of the grippers to the guidewire axis is greater than the diameter of the suction channel.

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