Prostate lifting device

Abstract

The invention relates to a prostate lifting device, and belongs to the technical field of medical instruments. The prostate lifting device comprises a brake box and a conveying shaft rod, the brake box comprises a shell, a needle sliding block, a wire sliding block and an energy storage spring are arranged in the shell, and a needle excitation module is arranged outside the shell; the needle sliding block and the thread sliding block are in sliding connection with the shell, the sliding direction is parallel to the length direction of the conveying shaft rod, and the energy storage spring is used for storing energy for the needle sliding block. A puncture needle and a silk thread are arranged in the conveying shaft rod, the end of the puncture needle is in transmission connection with the needle sliding block, and the end of the silk thread is in transmission connection with the thread sliding block. The needle excitation module comprises an excitation block and an excitation interlock, the excitation interlock is matched with the excitation block, and the excitation block is used for releasing the elastic potential energy of the energy storage spring when the excitation interlock is started. By optimizing the internal structure and the excitation mechanism of the brake box, the whole structure is simple, the assembly is convenient, the requirements of clinical minimally invasive surgery are met, and the application prospect is good.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a prostate lifting device. Background Technology

[0002] Benign prostatic hyperplasia (BPH) is a common disease among middle-aged and elderly men. Prostate lifting therapy is a minimally invasive treatment for BPH. This therapy involves using specialized instruments to insert an implant into the prostate tissue and achieve anchoring and lifting to alleviate urethral compression symptoms.

[0003] Currently used prostate lifting devices in clinical practice mostly rely on complex mechanical structures to complete the entire puncture and implantation process. These structures require high assembly precision, and the inter-component linkages are unpredictable, potentially affecting the reliability and consistency of stimulation, thus impacting surgical outcomes. Therefore, it is necessary to optimize the design of key mechanical structures. Summary of the Invention

[0004] To address the problems in the prior art, this invention proposes a prostate lifting device.

[0005] The technical solution adopted in this invention is as follows: A prostate lifting device includes a gate box and a delivery shaft. The gate box includes a housing, within which a needle slider, a wire slider, and an energy storage spring are disposed. A needle activation module is disposed outside the housing. The needle slider and the wire slider are slidably connected to the housing, with the sliding direction parallel to the length direction of the delivery shaft. The energy storage spring is used to store energy in the needle slider. A puncture needle and a wire are disposed inside the delivery shaft. The end of the puncture needle is drivenly connected to the needle slider, and the end of the wire is drivenly connected to the wire slider. The needle activation module includes an activation block and an activation interlock. The activation interlock cooperates with the activation block, and the activation block is used to release the elastic potential energy of the energy storage spring when the activation interlock is activated.

[0006] Preferably, the gate box housing is further provided with an energy storage slider, which is slidably connected to the housing and the sliding direction is parallel to the length direction of the conveying shaft. One end of the energy storage spring is fixed to the energy storage slider. The needle slider is provided with a transmission block, which is fixed to the other end of the energy storage spring. Through the cooperation of the energy storage slider and the transmission block, the energy storage spring can be controlled to store or release energy.

[0007] Preferably, the excitation block is hinged to the housing, and the excitation block includes a locking part located outside the housing and a limiting part extending into the housing, with the hinge shaft located between the locking part and the limiting part; the transmission block has a blocking protrusion on its side, and the limiting part cooperates with the blocking protrusion of the transmission block to limit the movement of the transmission block toward the energy storage slider side, thereby maintaining the energy storage state of the spring.

[0008] Preferably, the housing is provided with a first elastic hook, and the wire slider is provided with a protrusion. The first elastic hook cooperates with the protrusion to restrict the wire slider from moving away from the needle slider, ensuring that the wire slider is stable after activation, so that the needle slider exits the patient's tissue first. The transmission block is provided with an arc surface, which is used to press down the first elastic hook, so as to realize the convenient wire slider retraction operation with the simplest structure.

[0009] Preferably, the side of the transmission block facing away from the energy storage spring is provided with a stop bar. The stop bar abuts against the side of the housing in the initial energy storage state of the device to prevent the energy storage spring from being overstretched, protect the life of the mechanism, and also prevent the transmission block at the end of the energy storage spring from touching the wire and causing interference.

[0010] Preferably, the locking portion of the excitation block is provided with a snap-fit ​​groove, and the housing is provided with an elastic snap hook that cooperates with the snap-fit ​​groove, so as to prevent the limiting portion of the excitation block from extending excessively into the housing and causing unnecessary interference to the mechanical structure inside the housing.

[0011] Preferably, the excitation interlock is hinged to the housing by screws. The excitation interlock includes a toggle part and a limiting part, with the hinge shaft located between the toggle part and the limiting part. The limiting part of the excitation interlock is engaged between the locking end of the excitation block and the housing. Toggling the toggle part of the excitation interlock can easily unlock the excitation block.

[0012] Preferably, the housing is provided with a second elastic hook, which is used to prevent the limiting part of the excitation interlock from disengaging from the locking part of the excitation block and the housing without external force, so as to avoid accidental triggering.

[0013] Preferably, the needle slider has a needle drive protrusion that extends through a groove on the housing to the outside of the housing and has a puncture needle fixing groove for driving the puncture needle; the wire slider has a wire drive protrusion that has a wire support tube fixing groove for driving the wire.

[0014] Preferably, the device further includes handles with a semi-circular structure disposed on both sides of the gate housing for easy gripping and operation.

[0015] This invention achieves rapid, reliable, and consistent operation of the puncture and implantation process by optimizing the internal structure and activation mechanism of the gate box; the overall structure is simple and easy to assemble, suitable for the needs of clinical minimally invasive surgery, and has good application prospects. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the prostate lifting device of the present invention; Figure 2 This is a diagram showing the internal structure of the gate box in the prostate lifting device of the present invention; Figure 3This is a side view of the gate box in the prostate lifting device of the present invention.

[0017] Figure label: 1-Handle, 2-Conveyor shaft, 3-Gate box, 4-Needle activation module, 5-Punch needle, 6-Wire support tube, 7-Wire, 8-Anchoring tangent module; 31-Housing; 311-First elastic hook; 312-Second elastic hook; 313-Fixing post; 314-Elastic catch hook; 32-Needle slider; 321-Transmission block; 322-Blocking protrusion; 323-Abutting bar; 324-Needle transmission protrusion; 325-Top rod; 326-Stop block; 33-Linear slider; 331-Linear transmission protrusion; 332-Strip groove; 333-Protrusion; 34-Energy storage slider; 35-Energy storage spring; 36-Restriction block; 361-Restriction hook; 362-Slanted groove; 37-Tension spring; 41-Actuation block; 411-Snap-fit ​​groove; 42-Actuation interlock. Detailed Implementation

[0018] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0019] like Figure 1-3 As shown, a prostate lifting device includes a handle 1, a delivery shaft 2, and a gate box 3. The gate box 3 is connected to the delivery shaft 2. The delivery shaft 2 contains a puncture needle 5 and a prostate implant. The prostate implant includes a thread 7, and an anchoring structure is fixed at the end of the thread 7. The gate box 3 is used to control the insertion of the puncture needle 5 and one end of the anchoring structure of the thread 7 into the patient's prostate tissue or to retract it.

[0020] The gate box 3 includes a housing 31, with handles 1 fixedly mounted on both sides of the housing 31. The handles 1 have a semi-circular structure for easy gripping by the user, and are integrally formed with the gate box housing 31. Inside the housing 31 of the gate box 3 are installed a needle slider 32 that is driven by the puncture needle 5, a wire slider 33 that is driven by the needle slider 32, an energy storage spring 35 for storing energy in the needle slider 32, and an energy storage slider 34 for transferring the energy from the energy storage spring 35 to the needle slider 32.

[0021] like Figure 2As shown, the housing 31 has multiple sliding grooves, through which the needle slider 32 and the energy storage slider 34 are slidably connected to the housing 31. A limiting block 36 is provided at the endpoint of the needle slider 32's movement. A limiting hook 361 is provided on the side of the limiting block 36 facing the energy storage slider 34 to prevent the energy storage slider 34 from moving towards the energy storage spring 35. A transmission block 321 connected to the end of the energy storage spring 35 is provided on the side wall of the needle slider 32. A blocking protrusion 322 is also provided on the side of the transmission block 321, and a stop bar 323 is provided on the side of the transmission block 321 facing away from the energy storage spring 35. In the initial energy storage state, the protrusion abuts against the side of the housing 31, limiting the position of the transmission block 321 and preventing the energy storage spring 35 from over-storing energy. The needle slider 32 also has a needle transmission protrusion 324, which extends beyond the housing 31 through the sliding groove. A puncture needle fixing groove is also provided on the side of the needle transmission protrusion 324, through which the puncture needle 5 is connected to the needle slider 32. The line slider 33 is also provided with a line drive protrusion 331, which is provided with a line support tube fixing groove. One end of the line support tube 6 is fixed in the line support tube fixing groove, and the other end is fixed to the silk thread 7 of the prostate implant.

[0022] A limiting block 36 is positioned on one side of the energy storage slider 34 in its initial energy storage state and is elastically connected to the housing 31 via a spring, the spring direction being perpendicular to the length direction of the energy storage spring 35. The top surface of the limiting block 36 has a sloping groove 362, and the top of the needle slider 32 has a push rod 325, the end of which bends and extends into the sloping groove 362 of the limiting block. The middle of the line slider 33 has a strip groove 332, the direction of which is parallel to the direction of the groove in the housing 31. The end of the needle slider 32 has a stop block 326 protruding into the strip groove 332, and the sliding connection between the needle slider 32 and the line slider 33 is achieved through the cooperation of the stop block 326 and the strip groove 332. The side of the line slider 33 facing the transmission block 321 has a protrusion 333. Below this protrusion 333, the housing 31 has a first elastic hook 311 that cooperates with the protrusion 333 and floats inward and outward, used to limit the movement of the line slider 33 towards the side away from the line slider 33. The transmission block 321 has an arc-shaped surface at one end near the first elastic hook 311. When the transmission block 321 moves away from the energy storage slider 34 and passes the first elastic hook 311, its arc-shaped surface can press down the first elastic hook 311, causing the line slider 33 to disengage from the first elastic hook 311. A tension spring 37 is provided at intervals on one side of the energy storage spring 35. The tension spring 37 is parallel to the direction of the energy storage spring 35. One end of the tension spring 37 near the limiting block 36 is fixed by a fixing post 313 on the housing. The other end of the tension spring 37 is connected to a wire, which passes around the transmission block 321 and connects to the wire support tube 6 fixed to the line slider.

[0023] like Figure 2 , Figure 3As shown, the housing 31 is also provided with a needle excitation module 4, which includes an excitation block 41 and an excitation interlock 42, and is disposed on the housing 31 of the gate box 3. The excitation block 41 is hinged to the housing 31 by a pin, and the hinge axis is parallel to the surface of the housing 31. The excitation block 41 can be divided into two parts according to the hinge axis. One part is located outside the housing 31 and is the locking part. The other part extends into the housing 31 through a slot on the housing 31 and is the limiting part. The limiting part of the excitation block 4 cooperates with the blocking protrusion 322 of the transmission block to limit the movement of the transmission block 321 toward the energy storage slider 34. The locking part of the excitation block 41 has a locking groove 411 in the center, and the housing 31 has an elastic hook 314 that cooperates with the locking groove 411. When the excitation block 41 rotates along the hinge axis in a first direction, the limiting part tends to move out of the housing, and the locking part tends to move into the housing. When the excitation block 41 rotates along the hinge axis in a second direction, the limiting part tends to move into the housing, and the locking part moves away from the housing.

[0024] The excitation interlock 42 is hinged to the housing 31 by screws, with the hinge axis perpendicular to the surface of the housing 31 and spaced apart from the hooks 314 on the housing 31. The excitation interlock 42 is divided into two parts according to its hinge axis: a toggle part and a restraining part. The restraining part of the excitation interlock 42 cooperates with the end of the locking part of the excitation block 41. In the initial state of the device, the limiting part of the excitation block 41 extends into the slot on the housing 31 and protrudes within the housing 31, limiting the movement of the transmission block 321 and keeping the energy storage spring 35 in a stretched state. Simultaneously, the limiting part of the excitation interlock 42 is engaged between the locking end of the excitation block 41 and the housing 31, limiting the rotation of the excitation block 41 along the hinge axis in a first direction, keeping the limiting part of the excitation block 41 protruding. When the actuating part of the excitation interlock 42 is moved, causing the limiting part of the excitation interlock 42 to disengage from the locking part of the excitation block 41 and the housing 31, the excitation block 41 loosens and rotates in the first direction under the action of the limiting energy storage slider 34. The elastic potential energy of the energy storage spring 35 is converted into the kinetic energy of the energy storage slider 34, causing the transmission block 321 to move rapidly towards the side of the energy storage spring 35. Below the limiting part of the excitation interlock 42, the housing 31 is also provided with a second elastic hook 312 that can float inside and outside the housing 31, used to prevent the limiting part of the excitation interlock 42 from disengaging from the excitation block 41 and the housing 31, thus preventing false excitation.

[0025] The transmission gate box 3 is also equipped with an anchoring tangent module 8. When the anchoring tangent module 8 is activated, it can anchor and cut the implanted suture 7 that has entered the patient's prostate tissue at the prostate urethra.

[0026] The procedure for using the above-mentioned prostate lifting device is as follows: When the gate box 3 is in the energy storage state, the energy storage spring 35 is in the stretched state, while the transmission block 321 is limited and kept stationary by the protruding excitation block 41, and the side edge of the energy storage slider 34 is stuck on the limiting hook 361 of the limiting block 36.

[0027] At the start of the surgical procedure, the activation interlock 42 is activated, the activation block 41 is loosened, and the transmission block 321 moves rapidly toward the energy storage slider 34 under the action of the energy storage spring 35. The transmission block 321 moves synchronously with the needle slider 32 and the thread slider 33 until the top rod 325 of the needle slider 32 is engaged in the inclined groove 362 on the limiting block 36. At the same time, the protrusion 333 on the side wall of the thread slider 33 is engaged on the first elastic hook 311, preventing the thread slider 33 from retracting. The puncture needle 5 and the thread support tube 6 are driven by the rapidly moving needle slider 32 and the thread slider 33 to pierce into the patient's prostate tissue. The anchoring structure connected to the end of the thread 7 is anchored to the prostate capsule. At the same time, the tension spring 37 tightens the thread 7. At this time, the activation operation is completed.

[0028] After the stimulation operation is completed, the needle drive protrusion 324 of the needle slider 32 is moved, causing the needle slider 32 to move along the groove 332 and the slide groove of the housing 31 towards the side of the thread slider 33. During the movement, the push rod 325 of the needle slider 32 pushes the limiting block 36 along the inclined groove 362 to move away from the energy storage slider 34, so that the energy storage slider 34 is disengaged from the limiting hook 361 and moves along the slide groove with the needle slider 32. At the same time, the thread slider 33 is restricted by the first elastic hook 311 of the housing 31 and remains stationary, thereby realizing the retraction of the puncture needle 5 and leaving the thread 7 in the patient's prostate tissue.

[0029] After the puncture needle 5 is withdrawn, the anchoring tangent module 8 is activated, and the anchoring tangent module 8 anchors and cuts the suture 7 at the prostatic urethra. After the anchoring tangent is completed, the energy storage slider 34 is pushed to move toward the transmission block 321. During the movement of the energy storage slider 34, the needle slider 32 is driven to move together through the energy storage spring 35. When the transmission block 321 of the needle slider 32 moves above the first elastic hook 311, its arc surface presses down on the first elastic hook 311, causing the line slider 33 to break away from the restriction of the first elastic hook 311. The line slider 33 moves back together with the energy storage slider 34 and the needle slider 32.

[0030] This invention achieves rapid, reliable, and consistent operation of the puncture and implantation process by optimizing the internal structure and activation mechanism of the gate box; the overall structure is simple and easy to assemble, suitable for the needs of clinical minimally invasive surgery, and has good application prospects.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A prostate lifting device, characterized in that, The device includes a gate box and a conveyor shaft. The gate box includes a housing, inside which are a needle slider, a wire slider, and an energy storage spring. Outside the housing is a needle excitation module. The needle slider and the wire slider are slidably connected to the housing, with the sliding direction parallel to the length direction of the conveyor shaft. The energy storage spring is used to store energy in the needle slider. The conveyor shaft contains a piercing needle and a wire. The end of the piercing needle is drivenly connected to the needle slider, and the end of the wire is drivenly connected to the wire slider. The needle excitation module includes an excitation block and an excitation interlock. The excitation interlock cooperates with the excitation block, and the excitation block is used to release the elastic potential energy of the energy storage spring when the excitation interlock is activated.

2. The prostate lifting device according to claim 1, characterized in that, The gate box is also equipped with an energy storage slider inside its housing. The energy storage slider is slidably connected to the housing and its sliding direction is parallel to the length direction of the conveying shaft. One end of the energy storage spring is fixed to the energy storage slider. The needle slider is equipped with a transmission block, which is fixed to the other end of the energy storage spring.

3. The prostate lifting device according to claim 2, characterized in that, The excitation block is hinged to the housing. The excitation block includes a locking part located outside the housing and a limiting part extending into the housing. The hinge shaft is located between the locking part and the limiting part. The transmission block has a blocking protrusion on its side. The limiting part cooperates with the blocking protrusion of the transmission block to limit the movement of the transmission block toward the energy storage slider.

4. The prostate lifting device according to claim 2, characterized in that, The housing is provided with a first elastic hook, and the line slider is provided with a protrusion. The first elastic hook cooperates with the protrusion to restrict the line slider from moving in the direction away from the needle slider. The transmission block is provided with an arc surface, which is used to press down the first elastic hook.

5. The prostate lifting device according to claim 2, characterized in that, The transmission block has a stop bar on the side facing away from the energy storage spring, and the stop bar abuts against the side of the housing in the initial energy storage state of the device.

6. The prostate lifting device according to claim 3, characterized in that, The locking part of the excitation block is provided with a snap-fit ​​groove, and the housing is provided with an elastic snap hook that cooperates with the snap-fit ​​groove.

7. The prostate lifting device according to claim 3, characterized in that, The excitation interlock is hinged to the housing by screws. The excitation interlock includes a toggle part and a limiting part. The hinge shaft is located between the toggle part and the limiting part. The limiting part of the excitation interlock is locked between the locking part end of the excitation block and the housing.

8. The prostate lifting device according to claim 7, characterized in that, The housing is provided with a second elastic hook, which is used to prevent the limiting part of the excitation interlock from disengaging from the locking part of the excitation block and the housing without the action of external force.

9. The prostate lifting device according to claim 1, characterized in that, The needle slider has a needle drive protrusion that extends through a groove on the housing to the outside of the housing and has a puncture needle fixing groove; the wire slider has a wire drive protrusion that has a wire support tube fixing groove.

10. The prostate lifting device according to claim 1, characterized in that, The device also includes handles with a semi-circular structure disposed on both sides of the gate housing.

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