Minimally invasive surgery treatment system for benign prostatic hyperplasia and use method thereof

Abstract

The invention discloses a minimally invasive surgery treatment system for benign prostatic hyperplasia and a use method of the minimally invasive surgery treatment system. The system comprises an outer cannula used for entering the body of a patient through the urethra, a handle connected to the outer cannula, a cannula installed in the outer cannula, a stretching tube installed in the cannula, a guide wire installed in the stretching tube, a puncture needle head installed at the free end of the guide wire, a rotation driving mechanism used for driving the guide wire to rotate and a telescopic driving mechanism used for driving the cannula to move. A plurality of cutting knives which are uniformly arranged around the stretching tube are arranged between the free end of the stretching tube and the puncture needle head; a magnetic ring which is magnetically attracted with the puncture needle head is arranged at the free end of the sleeve; a guide wire locking mechanism used for locking the guide wire and a stretching pipe adjusting and locking mechanism used for adjusting the position of the stretching pipe and locking the stretching pipe are further arranged in the handle. The system is reasonable in structural design, the telescopic cutting knife is integrated into the puncture assembly, when the system is used for operation, trauma is small, recovery is fast, only local anesthesia is needed, the effect is fast, and the operation effect is good.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of prostate minimally invasive treatment technology, and relates to a prostate hyperplasia minimally invasive surgical treatment system and a use method thereof, in particular to a device using a precision mechanism transmitted to a prostate hyperplasia region, and a use method thereof. BACKGROUND

[0002] With the continuous improvement of living and medical conditions, people's pursuit of life quality is also constantly improving. At the present stage, the population aging is continuously intensified, and the senile diseases are increasingly highlighted. Prostate hyperplasia is one of the diseases of old men, which seriously affects the life quality of the old people.

[0003] As an aging disease, benign prostatic hyperplasia (BPH) often has complications such as heart, lung, brain, hypertension, renal insufficiency or diabetes, and has higher requirements for anesthesia and perioperative management.

[0004] In the early life, the prostate has the size and shape of a walnut and weighs about 20 grams before hypertrophy caused by BPH. The prostate enlargement appears to be a normal process. With age, the size of the prostate gradually increases to two or more times its normal size. After the gland reaches a certain size, the fibromuscular tissue of the outer prostatic capsule limits the expansion. Due to this limitation of expansion, the tissue within the capsule will press against and restrict the prostatic urethra, thereby causing resistance to urine flow.

[0005] The prostate gland structure can be divided into three regions: peripheral zone, transition zone and central zone. The peripheral zone PZ includes about 70% of the volume of the prostate of a young man. This subcapsular portion behind the prostate gland surrounds the distal urethra, and 70-80% of the cancers originate from the peripheral zone tissue. The central zone CZ surrounds the ejaculatory ducts and includes about 20-25% of the prostate volume. The central zone is usually the site of inflammatory processes. The transition zone TZ is the site where benign prostatic hyperplasia develops, and includes about 5-10% of the volume of glandular elements in a normal prostate, but can constitute up to 80% of the volume in the case of BPH. The transition zone includes two lateral prostatic lobes and periurethral gland regions. There is a natural barrier around the transition zone, namely the prostatic urethra, the anterior fibromuscular stroma and the fibrous plane between the transition zone and the peripheral zone. The anterior fibromuscular stroma or fibromuscular region is mainly fibromuscular tissue.

[0006] BPH is usually diagnosed when a patient seeks medical treatment for troublesome voiding difficulties. The main symptoms of BPH are urinary frequency and urgency, and a significant decrease in flow rate during urination. BPH can also cause urine to be retained in the bladder, which in turn can cause lower urinary tract infection (LUTI). In many cases, LUTI can then ascend into the kidneys and cause chronic pyelonephritis, which can eventually lead to renal insufficiency. BPH can also cause sexual dysfunction related to sleep disturbances or psychological anxiety caused by severe voiding difficulties. Thus, as the male population ages, BPH can significantly alter quality of life.

[0007] BPH is the result of an imbalance between the continuous production and natural death (apoptosis) of glandular cells of the prostate. The overproduction of these cells causes the prostate to increase in size, most notably in the transition zone that traverses the prostatic urethra.

[0008] In early cases of BPH, drug therapy can alleviate some symptoms. For example, alpha-receptor blockers treat BPH by relaxing smooth muscle tissue found in the prostate and bladder neck, which also allows urine to more easily flow out of the bladder. Such drugs can prove effective before the glandular elements cause extreme cell growth in the prostate.

[0009] However, advanced BPH can only be treated by surgery or minimally invasive thermal ablation devices. Various methods have been developed that utilize electrosurgery or mechanical tissue suction (aspiration) and thermal or cryoablation of intracapsular prostate tissue. The necrotic tissue remains at the site of the lesion and can only wait for its natural decomposition, which still causes considerable inconvenience to the patient. In many cases, such interventions only provide temporary relief, and these treatments often result in significant pre- and post-operative discomfort and morbidity.

[0010] Therefore, it is of great practical significance to develop a device that is less traumatic, recovers quickly, and can quickly bring significant symptom relief to patients. SUMMARY

[0011] In view of the above defects of the prior art, the present application provides a device that is less traumatic, recovers quickly, and can quickly bring significant symptom relief to patients, specifically a prostate hyperplasia minimally invasive surgical treatment system and a method for using the same, which solves the defect that existing prostate hyperplasia treatment methods cannot achieve good compromise of being less traumatic and quickly relieving symptoms.

[0012] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0013] A prostate hyperplasia minimally invasive surgical treatment system, comprising an outer sleeve for transurethral access into a patient's body, a handle coupled to the outer sleeve, a sleeve mounted in the outer sleeve, a stretch tube mounted in the sleeve, a guide wire mounted in the stretch tube, a puncture needle mounted at the free end of the guide wire, a rotation driving mechanism arranged in the handle and used for driving the guide wire to rotate, and an extension driving mechanism arranged in the handle and used for driving the sleeve to move along the length direction of the outer sleeve;

[0014] A plurality of cutting knives are mounted between the free end of the stretch tube and the puncture needle and uniformly arranged around the stretch tube, and a magnetic ring is mounted at the free end of the sleeve and magnetically attracted to the puncture needle;

[0015] The handle further comprises a guide wire locking mechanism for locking the guide wire and a stretch tube adjusting and locking mechanism for adjusting the position of the stretch tube and locking the stretch tube;

[0016] The position of the sleeve is adjusted by the extension driving mechanism, so that the position of the puncture needle is adjusted and the puncture needle is penetrated out of the outer sleeve, the guide wire is synchronously moved under the driving of the puncture needle, the guide wire is locked by the guide wire locking mechanism, the sleeve is retreated by the extension driving mechanism, so that the cutting knives previously wrapped in the sleeve are exposed, and finally the position of the stretch tube is adjusted and locked by the stretch tube adjusting and locking mechanism, that is, the distance between the stretch tube and the puncture needle is adjusted and locked, so that the state of the cutting knives (working state) is switched, the guide wire is rotated by the rotation driving mechanism, that is, the puncture needle is rotated, so that the cutting knives are rotated and the lesion tissue is cut.

[0017] The prostate hyperplasia minimally invasive surgical treatment system of the application has a reasonable structure, uses the puncture needle as an entrance for penetrating into the patient's tissue, sends the cutting knives into the patient's tissue, then unfolds the cutting knives, rotates the puncture needle to rotate the cutting knives, grinds the patient's tissue, and finally uses the negative pressure device to suck out the ground patient's tissue, so that the volume of the prostate tissue beside the urethra is reduced, the rapid relief of LUTS is realized, the relief effect does not rebound, the above-mentioned system first integrates the telescopic cutting knives into the puncture assembly, and then completes the resection of the prostate hyperplasia tissue, has small trauma, fast recovery, only needs local anesthesia, has better application prospect compared with the existing prostatectomy (large trauma, slow recovery, high risk of complications and the need for general anesthesia), has fast effect and good surgical effect compared with the existing steam heat ablation equipment Rezum (the best effect is generally achieved within 3 months after the operation).

[0018] As a preferred technical solution:

[0019] The prostate hyperplasia minimally invasive surgical treatment system as described above, the rotation driving mechanism comprises a rotation motor;

[0020] The rotating motor is installed at the end of the guide wire away from the outer sleeve, and the driving shaft of the rotating motor is connected with the guide wire rotating sleeve through the transmission shaft II, and the guide wire rotating sleeve is sleeved with the guide wire rotating block.

[0021] The guide wire rotating sleeve has a square column hollow structure in the middle, and the guide wire rotating block has a square column structure matched with the square column hollow structure.

[0022] The telescopic driving mechanism includes an advancing motor.

[0023] The advancing motor is arranged at the connection between the handle and the outer sleeve, the driving shaft of the advancing motor is coaxially connected with the transmission shaft I, and the transmission shaft I is sleeved with the gear.

[0024] The lower side of the outer sleeve is fixed with the rack, and the rack is arranged along the length direction of the outer sleeve.

[0025] The guide wire locking mechanism includes a limiting block II.

[0026] The stretching tube rotating sleeve is sleeved on the guide wire, the stretching tube rotating sleeve is sleeved with the stretching tube rotating block, and the stretching tube is fixed away from the outer sleeve end.

[0027] The limiting block II is matched with the stretching tube rotating sleeve, and the limiting block II is arranged between the stretching tube rotating sleeve and the guide wire rotating sleeve.

[0028] The stretching tube adjusting locking mechanism includes a limiting block I and a stretching tube limiting block.

[0029] The stretching tube limiting block is sleeved and fixed on the stretching tube.

[0030] The stretching tube limiting block is fixedly connected with the stretching tube tab, the shell of the handle is provided with a stretching tube tab sliding groove for the stretching tube tab to pass out, and the stretching tube tab passes out of the handle from the stretching tube tab sliding groove, so that the position of the stretching tube limiting block and the stretching tube can be adjusted through the stretching tube tab.

[0031] The limiting block I and the stretching tube limiting block are matched, and the limiting block I is located between the stretching limiting block and the rotating driving mechanism.

[0032] The prostate hyperplasia minimally invasive surgical treatment system as described above, the outer sleeve is internally provided with a camera module wire sleeve, a flushing sleeve, a puncture needle sleeve and a liquid outlet sleeve, a module support seat is arranged at the end of the outer sleeve away from the handle, a camera and an LED lamp are installed on the module support seat, the flushing sleeve and the liquid outlet sleeve are connected with the module support seat, and the outlet of the flushing sleeve is located above the camera and the LED lamp; the camera and the LED lamp are arranged in an inclined manner and are aligned with the puncture needle; the puncture needle is slidingly installed in the puncture needle sleeve and is located on the side of the camera away from the handle; a camera module cable of the camera passes into the handle through the camera module wire sleeve; and the rack is fixedly connected with the puncture needle sleeve.

[0033] The prostate hyperplasia minimally invasive surgical treatment system as described above, a protective head shell is fixedly arranged at the end of the outer sleeve away from the handle, a hollow portion is formed in the middle of the protective head shell, the hollow portion is in communication with the module support seat and the puncture needle sleeve, protective head side liquid discharge ports in communication with the hollow portion are arranged on the two sides of the protective head shell, and a protective head top opening in communication with the hollow portion and for the puncture needle to pass through is formed in the top of the protective head shell.

[0034] The prostate hyperplasia minimally invasive surgical treatment system as described above, the outer sleeve is fixed on the handle through a rotating body, and the outer sleeve can rotate around the handle; and the angle sensor is integrated in the rotating body.

[0035] The end of the protective head shell away from the outer sleeve is in a circular arc structure.

[0036] The surface of the outer sleeve is marked with scale lines.

[0037] The two sides of the camera are provided with LED lamps.

[0038] In addition, the application further provides a use method of the prostate hyperplasia minimally invasive surgical treatment system as described above, which comprises the following steps:

[0039] (1) An operator operates the prostate hyperplasia minimally invasive surgical treatment system to stretch the outer sleeve into a patient position;

[0040] (2) The stretching and retracting driving mechanism is controlled to drive the sleeve to move, so that the puncture needle passes out of the outer sleeve by a certain length, and then the guide wire locking mechanism is used to lock the guide wire;

[0041] (3) The stretching and retracting driving mechanism is controlled to drive the sleeve to retreat, so that the cutting knife wrapped in the sleeve is exposed;

[0042] (4) The locking mechanism is adjusted by controlling the stretching pipe to reduce the distance between the stretching pipe and the puncture needle and to be locked;

[0043] (5) The rotating driving mechanism is turned on to drive the puncture needle to rotate and drive the cutting knife to rotate.

[0044] (6) After the operation is completed, the rotation driving mechanism is closed, the stretching tube adjusting locking mechanism is controlled to make the distance between the stretching tube and the puncture needle head maximum, the locking of the guide wire locking mechanism is released, the telescopic driving mechanism is controlled to drive the sleeve to move forward until the sleeve is magnetically attracted to the puncture needle head, and finally the telescopic driving mechanism drives the sleeve to retreat, and the puncture needle head is retracted into the outer sleeve;

[0045] (7) The outer sleeve is taken out from the patient position.

[0046] The above technical scheme is only one possible technical scheme of the present application, and the protection scope of the present application is not limited to this, and a person skilled in the art can reasonably adjust the specific design according to actual needs.

[0047] The above-mentioned application has the following advantages or beneficial effects:

[0048] (1) The prostate hyperplasia minimally invasive surgical treatment system of the present application has a reasonable structure, uses the puncture needle head as an entrance into the patient's tissue, sends the cutting knife into the patient's tissue, then unfolds the cutting knife, drives the puncture needle head to rotate, and can drive the cutting knife to rotate, crushes the patient's tissue, and finally uses the negative pressure device to suck out the crushed patient's tissue, reduces the volume of the prostate tissue beside the urethra, and realizes rapid relief of LUTS and non-rebound relief effect;

[0049] (2) The prostate hyperplasia minimally invasive surgical treatment system of the present application first integrates the telescopic cutting knife into the puncture assembly, and then completes the resection of the prostate hyperplasia tissue, has small trauma, fast recovery, and only needs local anesthesia, compared with the existing prostatectomy (large trauma, slow recovery, high risk of complications, and the need for general anesthesia);

[0050] (3) The prostate hyperplasia minimally invasive surgical treatment system of the present application has fast effect and good surgical effect, and has good application prospect, compared with the existing steam heat ablation equipment Rezum (the best effect is generally achieved within 3 months after the operation). BRIEF DESCRIPTION OF DRAWINGS

[0051] The present application and its features, shapes and advantages will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. The same reference signs indicate the same parts throughout the drawings. The drawings are not drawn to scale, and the emphasis is on showing the main idea of the present application.

[0052] Figure 1 It is a general assembly view of the prostate hyperplasia minimally invasive surgical treatment system of the present application.

[0053] Figure 2 It is an exploded view of the prostate hyperplasia minimally invasive surgical treatment system of the present application.

[0054] Figure 3Schematic diagram of the retracting driving mechanism of the puncture needle;

[0055] Figure 4 Schematic diagram of the rotating driving mechanism of the puncture needle;

[0056] Figure 5 Schematic diagram of the cutting knife in the closed state;

[0057] Figure 6 Schematic diagram of the cutting knife in the working state;

[0058] Figure 7 Schematic diagram of the guide wire locking mechanism;

[0059] Figure 8 Schematic diagram of the stretching tube locking mechanism;

[0060] Figure 9 Enlarged schematic diagram of the position of the stretching tube limiting block;

[0061] Figure 10 Schematic diagram of the structure of the connection of the puncture needle and the sleeve through the magnetic ring;

[0062] In the figure, 1 is the protective head shell, 2 is the module support seat, 3 is the guide wire, 4 is the cutting knife, 5 is the magnetic ring, 6 is the puncture needle, 7 is the stretching tube, 8 is the puncture needle sleeve, 9 is the outer sleeve, 10 is the stretching tube shifting piece, 11 is the gear, 12 is the transmission shaft I, 13 is the forward motor, 14 is the rack, 15 is the limiting block I, 16 is the handle shell, 17 is the stretching tube limiting block, 18 is the stretching tube rotating block, 19 is the stretching tube rotating sleeve, 20 is the rotating motor, 21 is the transmission shaft II, 22 is the guide wire rotating sleeve, 23 is the guide wire rotating block, 24 is the limiting block II, 25 is the handle operation key, and 26 is the stretching tube shifting piece sliding groove. DETAILED DESCRIPTION

[0063] The structure of the present application will be further described below in combination with the drawings and specific examples, but it is not intended to limit the present application.

[0064] Example 1

[0065] A kind of benign prostatic hyperplasia minimally invasive surgical treatment system, such as Figures 1-10As shown, it comprises an outer sleeve 9 for transurethral access into the patient's body, a handle (including a handle shell 16) coupled to the outer sleeve 9, a sleeve (including a camera module wire sleeve, a flushing sleeve, a puncture needle sleeve 8 and a liquid outlet sleeve) installed in the outer sleeve 9, a stretch tube 7 installed in the sleeve (specifically the puncture needle sleeve 8), a guide wire 3 installed in the stretch tube 7, a puncture needle 6 installed at the free end of the guide wire 3, a rotation driving mechanism provided in the handle and used to drive the guide wire 3 to rotate, and an extension driving mechanism provided in the handle and used to drive the sleeve 8 to move along the length direction of the outer sleeve 9;

[0066] The outer sleeve 9 is fixed on the handle through a rotating body and can rotate around the handle, an angle sensor is integrated in the rotating body, the outer sleeve 9 is internally provided with the camera module wire sleeve, the flushing sleeve, the puncture needle sleeve 8 and the liquid outlet sleeve, a module support seat 2 is arranged at the end of the outer sleeve 9 away from the handle, a camera and an LED lamp are installed on the module support seat 2 (the two sides of the camera are provided with LED lamps), the flushing sleeve and the liquid outlet sleeve are connected with the module support seat 2 and the outlet of the flushing sleeve is located above the camera and the LED lamp, the camera and the LED lamp are arranged obliquely and are aligned with the puncture needle 6, the puncture needle 6 is slidingly installed in the puncture needle sleeve 8 and is located at the side of the camera away from the handle, and the camera module cable of the camera passes into the handle through the camera module wire sleeve;

[0067] The outer sleeve 9 is fixed on the handle through a rotating body and can rotate around the handle, an angle sensor is integrated in the rotating body, the outer sleeve 9 is internally provided with the camera module wire sleeve, the flushing sleeve, the puncture needle sleeve 8 and the liquid outlet sleeve, a module support seat 2 is arranged at the end of the outer sleeve 9 away from the handle, a camera and an LED lamp are installed on the module support seat 2 (the two sides of the camera are provided with LED lamps), the flushing sleeve and the liquid outlet sleeve are connected with the module support seat 2 and the outlet of the flushing sleeve is located above the camera and the LED lamp, the camera and the LED lamp are arranged obliquely and are aligned with the puncture needle 6, the puncture needle 6 is slidingly installed in the puncture needle sleeve 8 and is located at the side of the camera away from the handle, and the camera module cable of the camera passes into the handle through the camera module wire sleeve;

[0068] The rotation driving mechanism comprises a rotation motor 20, the rotation motor 20 is installed at the end of the guide wire 3 away from the outer sleeve 9, and the driving shaft of the rotation motor 20 is connected with a guide wire rotation sleeve 22 through a transmission shaft II 21, the guide wire rotation sleeve 22 is internally and fixedly provided with a guide wire rotation block 23 (the middle part of the guide wire rotation sleeve 22 is provided with a square column hollow structure, and the guide wire rotation block 23 is a square column structure matched with the square column hollow structure), and the guide wire 3 is fixedly connected with the guide wire rotation block 23;

[0069] The telescopic drive mechanism comprises an advancing motor 13 arranged at the joint of the handle and the outer sleeve 9, the drive shaft of the advancing motor 13 is coaxially connected with the transmission shaft I 12, the transmission shaft I side 2 is sleeved and fixed with a gear 11, the lower side of the puncture needle sleeve 8 is fixed with a rack 14 arranged along the length direction of the puncture needle sleeve 8, and the rack 14 is engaged with the gear 11;

[0070] A plurality of cutting knives 4 are arranged uniformly around the stretch tube 7 between the free end of the stretch tube 7 and the puncture needle head 6, and a magnetic ring 5 is arranged at the free end of the puncture needle sleeve 8 and magnetically attracted to the puncture needle head 6;

[0071] The handle is further provided with a guide wire locking mechanism for locking the guide wire 3 and a stretch tube adjusting and locking mechanism for adjusting the position of the stretch tube 7 and locking the stretch tube 7;

[0072] The guide wire locking mechanism comprises a limiting block II 24, the stretch tube rotating sleeve 19 is sleeved on the guide wire 3, the stretch tube rotating block 18 is sleeved and fixed in the stretch tube rotating sleeve 19 (the middle part of the stretch tube rotating sleeve 19 is provided with a square column-shaped hollow structure, and the stretch tube rotating block 18 is a square column-shaped structure matched with the square column-shaped hollow structure), the stretch tube 7 is fixed with the stretch tube rotating block 18 away from the outer sleeve 9, and the limiting block II 24 is matched with the stretch tube rotating sleeve 19 and arranged between the stretch tube rotating sleeve 19 and the guide wire rotating sleeve 22;

[0073] The stretch tube adjusting and locking mechanism comprises a limiting block I 15 and a stretch tube limiting block 17; the stretch tube limiting block 17 is sleeved and fixed on the stretch tube 7, the stretch tube limiting block 17 is fixedly connected with the stretch tube tab 10, the handle shell 16 is provided with a stretch tube tab sliding groove 26 through which the stretch tube tab 10 passes out of the handle, the stretch tube tab 10 passes out of the handle from the stretch tube tab sliding groove 26, the limiting block I 15 and the stretch tube limiting block 17 are matched, and the limiting block I 15 is located between the stretch limiting block 17 and the rotating drive mechanism.

[0074] The use method of the above-mentioned prostate hyperplasia minimally invasive surgical treatment system comprises the following steps:

[0075] (1) The operator operates the prostate hyperplasia minimally invasive surgical treatment system to stretch the outer sleeve into the position of the patient;

[0076] (2) The telescopic drive mechanism is controlled to drive the sleeve to move, so that the puncture needle head penetrates out of the outer sleeve by a certain length, and then the guide wire is locked by the guide wire locking mechanism;

[0077] (3) The telescopic drive mechanism is controlled to drive the sleeve to retreat, so that the cutting knives wrapped in the sleeve are exposed;

[0078] (4) by controlling the stretching pipe adjustment locking mechanism to reduce the distance between the stretching pipe and the puncture needle and lock;

[0079] (5) open the rotary drive mechanism to drive the puncture needle to rotate and drive the cutting knife to rotate;

[0080] (6) after the operation is completed, the rotary drive mechanism is closed, the stretching pipe adjustment locking mechanism is controlled to make the distance between the stretching pipe and the puncture needle reach the maximum, the locking of the guide wire locking mechanism is released, the telescopic drive mechanism is controlled to drive the sleeve to move forward until the sleeve is magnetically attracted to the puncture needle, and finally the telescopic drive mechanism drives the sleeve to retreat, and the puncture needle is retracted into the outer sleeve;

[0081] (7) the outer sleeve is taken out from the patient position.

[0082] It has been verified that the prostate hyperplasia minimally invasive surgical treatment system has reasonable structure, uses the puncture needle as an entrance into the patient's tissue, sends the cutting knife into the patient's tissue, then unfolds the cutting knife, drives the puncture needle to rotate, and drives the cutting knife to rotate, grinds the patient's tissue, finally uses the negative pressure device to suck out the ground patient's tissue, reduces the volume of the prostate tissue beside the urethra, realizes the rapid relief of LUTS, and the relief effect does not rebound; for the first time, the telescopic cutting knife is integrated into the puncture assembly, and then the prostate hyperplasia tissue is removed, compared with the existing prostatectomy (large trauma, slow recovery, high risk of complications and the need for general anesthesia), the trauma is small, the recovery is fast, and only local anesthesia is needed; compared with the existing steam heat ablation equipment Rezum (the best effect is generally achieved within 3 months after the operation), the effect is fast and the surgical effect is good, and the application prospect is good.

[0083] Those skilled in the art should understand that those skilled in the art can realize the variant examples in combination with the prior art and the above-mentioned embodiments, which are not described here. Such variant examples do not affect the essential content of the present application, and are not described here.

[0084] The preferred embodiments of the present application are described above. It should be understood that the present application is not limited to the above specific embodiments, and the devices and structures not fully described should be understood as being implemented in the ordinary way in the art; any person skilled in the art can make many possible changes and modifications to the technical solutions of the present application by using the disclosed methods and technical contents without departing from the scope of the technical solutions of the present application, or modify equivalent embodiments of equivalent changes, which do not affect the essential content of the present application. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the technical solutions of the present application, still belongs to the scope of protection of the technical solutions of the present application.

Claims

1. A minimally invasive surgical treatment system for benign prostatic hyperplasia, characterized in that: The transurethral access device comprises an outer sleeve for transurethral access into a patient's body, a handle coupled to the outer sleeve, a sleeve installed in the outer sleeve, a stretch tube installed in the sleeve, a guide wire installed in the stretch tube, a puncture needle installed at the free end of the guide wire, a rotation driving mechanism arranged in the handle and used for driving the guide wire to rotate, and an extension driving mechanism arranged in the handle and used for driving the sleeve to move along the length direction of the outer sleeve; A plurality of cutting knives are arranged around the stretch tube between the free end of the stretch tube and the puncture needle, and a magnetic ring is arranged at the free end of the sleeve and magnetically attracted to the puncture needle; The handle is further provided with a guide wire locking mechanism for locking the guide wire and a stretch tube adjusting locking mechanism for adjusting the position of the stretch tube and locking the stretch tube.

2. The benign prostatic hyperplasia micro-invasive surgical treatment system according to claim 1, characterized in that, The rotation driving mechanism comprises a rotation motor; The rotation motor is installed at the end of the guide wire away from the outer sleeve, and the driving shaft of the rotation motor is connected with a guide wire rotation sleeve through a transmission shaft II, a guide wire rotation block is fixedly sleeved in the guide wire rotation sleeve, and the guide wire is fixedly connected with the guide wire rotation block.

3. The benign prostatic hyperplasia micro-invasive surgical treatment system according to claim 2, characterized in that, The middle part of the guide wire rotation sleeve is provided with a square column hollow structure, and the guide wire rotation block is a square column structure matched with the square column hollow structure.

4. The benign prostatic hyperplasia micro-invasive surgical treatment system according to claim 1, characterized in that, The extension driving mechanism comprises an advancing motor; The advancing motor is arranged at the connection between the handle and the outer sleeve, the driving shaft of the advancing motor is coaxially connected with a transmission shaft I, and a gear is fixedly sleeved on the transmission shaft I; The lower side of the sleeve is fixedly provided with a rack arranged along the length direction of the sleeve, and the rack is engaged with the gear.

5. The benign prostatic hyperplasia micro-invasive surgical treatment system according to claim 2, characterized in that, The guide wire locking mechanism comprises a limiting block II; The stretch tube rotation sleeve is sleeved on the guide wire, a stretch tube rotation block is fixedly sleeved in the stretch tube rotation sleeve, and the end of the stretch tube away from the outer sleeve is fixed with the stretch tube rotation block; The limiting block II is matched with the stretch tube rotation sleeve, and the limiting block II is arranged between the stretch tube rotation sleeve and the guide wire rotation sleeve.

6. The benign prostatic hyperplasia micro-invasive surgical treatment system according to claim 1, characterized in that, The stretch tube adjusting locking mechanism comprises a limiting block I and a stretch tube limiting block; The stretch tube limiting block is fixedly sleeved on the stretch tube; The stretch tube limiting block is fixedly connected with a stretch tube tab, a stretch tube tab sliding groove is formed in the shell of the handle for the stretch tube tab to pass out of the handle, and the stretch tube tab passes out of the handle from the stretch tube tab sliding groove; The limiting block I and the stretch tube limiting block are matched, and the limiting block I is located between the stretch limiting block and the rotation driving mechanism.

7. The benign prostatic hyperplasia micro-invasive surgical treatment system according to claim 1, characterized in that, The outer sleeve is internally provided with a camera module wire sleeve, a flushing sleeve, a puncture needle sleeve and a liquid outlet sleeve, a module support seat is arranged at the end of the outer sleeve away from the handle, a camera and an LED lamp are installed on the module support seat, the flushing sleeve and the liquid outlet sleeve are connected with the module support seat, the outlet of the flushing sleeve is located above the camera and the LED lamp, the camera and the LED lamp are obliquely arranged and aligned with the puncture needle, the puncture needle is slidingly installed in the puncture needle sleeve and located at the side of the camera away from the handle, and a camera module cable of the camera passes into the handle through the camera module wire sleeve.

8. The benign prostatic hyperplasia micro-invasive surgical treatment system according to claim 7, characterized in that, The outer sleeve is fixed with a protective head shell at the end away from the handle, a hollow part is opened in the middle of the protective head shell, the hollow part is communicated with the module support seat and the puncture needle sleeve, the two sides of the protective head shell are provided with protective head side liquid discharge ports communicated with the hollow part, and a protective head top opening communicated with the hollow part is opened in the top of the protective head shell.

9. The benign prostatic hyperplasia micro-invasive surgical treatment system according to claim 8, characterized in that, The outer sleeve is fixed on the handle through a rotating body and can rotate around the handle, and the angle sensor is integrated in the rotating body; The protective head shell is in a circular arc structure at the end away from the outer sleeve; Scale lines are printed on the surface of the outer sleeve; LED lamps are arranged on the two sides of the camera.

10. The use of a prostate hyperplasia micro-invasive surgical treatment system according to any one of claims 1-9, characterized in that, The following steps are included: (1) The operator operates the prostate hyperplasia minimally invasive surgical treatment system to extend the outer sleeve into the patient position; (2) The telescopic drive mechanism is controlled to drive the sleeve to move, so that the puncture needle head is extended out of the outer sleeve by a certain length, and then the guide wire locking mechanism is used to lock the guide wire; (3) The telescopic drive mechanism is controlled to drive the sleeve to retreat, so that the cutting knife wrapped in the sleeve is exposed; (4) The locking mechanism is adjusted by controlling the stretching pipe to reduce the distance between the stretching pipe and the puncture needle head and lock; (5) The rotating drive mechanism is started to drive the puncture needle head to rotate and drive the cutting knife to rotate; (6) After the operation is completed, the rotating drive mechanism is turned off, the locking mechanism is adjusted by controlling the stretching pipe to make the distance between the stretching pipe and the puncture needle head maximum, the locking of the guide wire locking mechanism is released, the telescopic drive mechanism is controlled to drive the sleeve to move forward until the sleeve and the puncture needle head are magnetically attracted, and finally the telescopic drive mechanism drives the sleeve to retreat to receive the puncture needle head into the outer sleeve; (7) The outer sleeve is taken out of the patient position.

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