Precision Prostate Partial Resection Device

Abstract

The present invention relates to a precise prostate partial resection device, comprising a tool holder and a plurality of cutting assemblies; the tool holder includes a main shaft, a first rotating seat and a second rotating seat which are axially spaced on the main shaft, the first rotating seat is located at the end of the main shaft, and the outer shape of the first rotating seat is smaller than that of the second rotating seat; the cutting assembly includes a support shaft connected between the first rotating seat and the second rotating seat, and a blade disposed on the support shaft, and one end of the support shaft connected to the second rotating seat deviates outward from the main shaft, so that an included angle is formed between the support shaft and the main shaft; each cutting assembly is arranged circumferentially between the first rotating seat and the second rotating seat, and when the tool holder rotates, it drives the cutting assembly to rotate. The conical small head of each cutting assembly close to the first rotating seat at the front end first removes the hyperplasia in the middle. During the advancing process, the cutting assembly works as a whole to cut the urethral orifice. The working process of the removal device is simple and fast, reducing the pain of the patient, with controllable cutting size and lower risk.

Description

Technical Field

[0001] The present invention relates to the medical field, and more specifically, to a precise prostate partial resection device. Background Art

[0002] In the medical field, benign prostatic hyperplasia is a relatively common disease among middle-aged and elderly men. Its harm lies in that the hyperplastic gland is located at the bladder neck, which will narrow the urinary tract and, in severe cases, block the urinary tract, causing problems such as frequent urination and difficult urination for patients.

[0003] For patients with benign prostatic hyperplasia whose condition is relatively severe and who can no longer urinate normally, the existing and relatively common treatment method is transurethral resection of the prostate (TURP).

[0004] Transurethral resection of the prostate belongs to minimally invasive surgery. It requires general anesthesia for the patient. The prostate resection mirror is inserted through the urethra to remove the blocked part of the prostate. However, the thickness of the removal cannot be controlled, the operation difficulty is high, and it requires a highly qualified surgeon to perform. Moreover, the operation time is long, the intraoperative bleeding is large, and continuous bleeding is likely to occur after the removal. It is necessary to continuously irrigate for one week. The duration is long and the bleeding volume is large, which causes relatively high harm to the patient.

[0005] Since most of these patients are elderly and many are accompanied by serious underlying diseases, some patients cannot tolerate this operation. Therefore, the surgical risk is high, and they can only rely on a urinary catheter for a long time, bearing a heavy burden on their quality of life. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide an improved precise prostate partial resection device for the above-mentioned defects of the prior art.

[0007] The technical solution adopted by the present invention to solve its technical problems is: to construct a precise prostate partial resection device, including a tool holder and a plurality of sets of cutting components;

[0008] The tool holder includes a main shaft, and a first rotating seat and a second rotating seat that are axially spaced on the main shaft. The first rotating seat is located at the end of the main shaft, and the outer shape of the first rotating seat is smaller than the outer shape of the second rotating seat;

[0009] The cutting component includes a support shaft connected between the first rotating seat and the second rotating seat, and a blade provided on the support shaft. One end of the support shaft connected to the second rotating seat deviates outward from the main shaft, so that the support shaft forms an angle with the main shaft;

[0010] Each of the cutting components is arranged circumferentially between the first rotating seat and the second rotating seat. When the tool holder rotates, it drives the cutting components to rotate.

[0011] In some embodiments, a plurality of the blades are axially distributed on the support shaft.

[0012] In some embodiments, the support shaft is rotatably engaged with the first rotating seat and the second rotating seat, and the blades are circumferentially distributed on the support shaft.

[0013] In some embodiments, a receiving space is formed among the main shaft, the cutting assembly, and the second rotating seat.

[0014] In some embodiments, a cleaning channel communicating with the receiving space is further provided on the tool holder to connect a cleaning liquid for cleaning the receiving space and the cutting assembly.

[0015] In some embodiments, the cleaning channel is formed in the main shaft and / or the second rotating seat.

[0016] In some embodiments, an adsorption channel communicating with the receiving space is further provided on the tool holder to connect an adsorption device for adsorbing residues in the receiving space.

[0017] In some embodiments, the adsorption channel is formed in the main shaft and / or the second rotating seat.

[0018] In some embodiments, the first rotating seat is detachably mounted at the end of the main shaft.

[0019] In some embodiments, a support tube sleeved on the outer ring of the second rotating seat is further included. The support tube is a metal tube body, and the support tube is connected to a power supply to generate heat after being energized.

[0020] Implementing the precise prostate partial resection device of the present invention has the following beneficial effects: After the excision device is inserted into the urethra, the conical small head of each cutting assembly near the first rotating seat at the front end first excises the hyperplasia in the middle. During the advancement of the excision device, the cutting assembly then works as a whole to cut out a urethral hole that meets the requirements. The working process of the excision device is simple and fast, reducing the pain of the patient, with controllable cutting dimensions and lower risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the drawings and embodiments. In the drawings:

[0022] Figure 1 is a schematic diagram of the precise prostate partial resection device in the embodiment of the present invention before inserting into the urethra to excise hyperplasia. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to have a clearer understanding of the technical features, objectives, and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the drawings.

[0024] As shown Figure 1 in the figure, the precision prostate partial resection device in a preferred embodiment of the present invention includes a tool holder 1, several groups of cutting components 2, a support tube 3, a driving device (not shown), etc. The driving device can drive the tool holder 1 and the cutting components 2 arranged on the tool holder 1 to rotate. During the process of inserting the resection device into the urethra 4, the rotating cutting components 2 remove the hyperplastic part 51 of the prostate 5 to expand the urethra 4.

[0025] The tool holder 1 includes a main shaft 11, and a first rotating seat 12 and a second rotating seat 13 that are axially spaced on the main shaft 11. The first rotating seat 12 is located at the end of the main shaft 11, and the outer shape of the first rotating seat 12 is smaller than that of the second rotating seat 13. The end where the smaller-shaped first rotating seat 12 is located is used as the front end to facilitate insertion into the urethra 4.

[0026] Further, the support tube 3 is sleeved on the outer circle of the second rotating seat 13, and an installation space can be formed between the main shaft 11 and the support tube 3 for placing the motor, control board, etc. of the driving device.

[0027] The cutting component 2 includes a support shaft 21 connected between the first rotating seat 12 and the second rotating seat 13, and a blade 22 arranged on the support shaft 21. One end of the support shaft 21 connected to the second rotating seat 13 deviates outward from the main shaft 11, so that an angle is formed between the support shaft 21 and the main shaft 11, and each cutting component 2 can also form a conical structure.

[0028] Each cutting component 2 is arranged circumferentially between the first rotating seat 12 and the second rotating seat 13. When the tool holder 1 rotates, it drives the cutting component 2 to rotate.

[0029] After the resection device is inserted into the urethra 4, the conical small head of each cutting component 2 close to the first rotating seat 12 at the front end first removes the hyperplasia 51 in the middle. During the advancement of the resection device, the cutting component 2 works as a whole to cut out a urethral hole 4 that meets the requirements. The working process of the resection device is simple and fast, reducing the pain of the patient, with controllable cutting size and lower risk.

[0030] Preferably, a plurality of blades 22 are axially distributed on the support shaft 21. When the tool holder 1 rotates, each blade 22 first removes the hyperplastic position 51 during the process of removing the urethra 4 to form a conical cutting surface until the growth 51 in the urethra 4 is completely removed.

[0031] Further, in some embodiments, the support shaft 21 is rotationally matched with the first rotating seat 12 and the second rotating seat 13, and blades 22 can also be circumferentially distributed on the support shaft 21. While the cutting component 2 revolves with the tool holder 1, the blades 22 of the cutting component 2 can also rotate around the support shaft 21.

[0032] Preferably, a receiving space 14 is formed among the main shaft 11, the cutting assembly 2, and the second rotating seat 13, which can temporarily store a part of the prostate 5 cuttings removed by the blade 22, avoiding too many residues outside the blade 22 and reducing the impact caused by the blade 22 when removing the prostate 5.

[0033] In addition, in order to inject a cleaning liquid into the removal position during the removal process of the blade 22 to wash the blood and cuttings flowing out after removal, a cleaning channel 15 communicating with the receiving space 14 is also provided on the tool holder 1 to connect the cleaning liquid and clean the receiving space 14 and the cutting assembly 2.

[0034] In this embodiment, the cleaning channel 15 is formed in the main shaft 11, and after being arranged along the main shaft 11, it communicates with the receiving space 14. The cleaning channel 15 is connected to the cleaning liquid, and under the action of a pump, the cleaning liquid is injected for cleaning. In other embodiments, the cleaning channel 15 can also be formed in the second rotating seat 13. After the cleaning channel 15 penetrates through the second rotating seat 13, it communicates with the receiving space 14. Of course, the cleaning channel 15 can also be formed on both the main shaft 11 and the second rotating seat 13 of the tool holder 1 at the same time for simultaneous cleaning.

[0035] Furthermore, an adsorption channel 16 communicating with the receiving space 14 is also provided on the tool holder 1 to connect an adsorption device such as an adsorption pump to adsorb the residues in the receiving space 14. At the same time, it can also adsorb the blood and water washed out by the cleaning liquid.

[0036] In this embodiment, the adsorption channel 16 is formed in the main shaft 11, and after being arranged along the main shaft 11, it communicates with the receiving space 14. The adsorption channel 16 is connected to the adsorption pump to adsorb the blood and residues in the receiving space 14. In other embodiments, the adsorption channel 16 can also be formed in the second rotating seat 13. After the adsorption channel 16 penetrates through the second rotating seat 13, it communicates with the receiving space 14. Of course, the adsorption channel 16 can also be formed on both the main shaft 11 and the second rotating seat 13 of the tool holder 1 at the same time for simultaneous adsorption.

[0037] During cutting, while sending water into the cleaning channel 15 for flushing and cleaning, at the same time, the blood and water washed out are discharged outward through the adsorption channel 16 by negative pressure, which does not affect the normal cutting process and also avoids the dirty water staying in the patient's body for a long time.

[0038] Preferably, the first rotating seat 12 is detachably installed at the end of the main shaft 11, which is convenient for the disassembly and assembly of the cutting assembly 2. After both ends of the support shaft 21 of the cutting assembly 2 are respectively connected to the first rotating seat 12 and the second rotating seat 13, the first rotating seat 12 is locked and fixed, so that the cutting assembly 2 can be fixed. When it is necessary to remove and replace the cutting assembly 2, after removing the first rotating seat 12, repeating the assembly steps can replace the new cutting assembly 2.

[0039] In order to observe the internal cutting situation in real time, an endoscope can also be provided on the first rotating seat 12 to master the cutting situation, which is convenient for adjusting the cutting direction or cutting plan according to the real-time cutting situation.

[0040] In addition, the inner end of the support tube 3 includes an extension section 31 extending inward. The extension section 31 can be located outside the outer circle of each cutting component 2. During the cutting and advancing process, the prostate soft tissue can be squeezed into the extension section 31 and then removed by the rotating cutting component 2, which can play a certain protective role.

[0041] The extension section 31 can be an integral structure with the support tube 3, or the extension section 31 can also be a cylindrical part additionally installed at the inner end of the support tube 3. The cylindrical part has low thermal conductivity, and the material can be silicone, etc., so that the heat generated during the cutting process is transferred to the prostate as little as possible.

[0042] Furthermore, in order to quickly stop bleeding after the prostate is cut, the support tube 3 is a metal tube body, and heating wires can be provided on the inner wall or outer wall of the metal tube body. During operation, the support tube 3 is connected to a power supply to heat the heating wires after being energized to generate heat, and the heat is transferred to the support tube 3. The heated support tube 3 burns the tissue at the cutting position to stop bleeding. It can be understood that the support tube 3 itself can also be a heating tube body, and the support tube 3 is heated directly by connecting to a power supply to stop bleeding.

[0043] It can be understood that the above technical features can be combined arbitrarily without limitation.

[0044] The above are only embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present invention by the same token.

Claims

1. A precise prostate partial resection device, characterized in that , including a tool holder (1) and several groups of cutting components (2); The tool holder (1) includes a main shaft (11) and a first rotating seat (12) and a second rotating seat (13) axially spaced on the main shaft (11). The first rotating seat (12) is located at the end of the main shaft (11), and the outer shape of the first rotating seat (12) is smaller than the outer shape of the second rotating seat (13); The cutting component (2) includes a support shaft (21) connected between the first rotating seat (12) and the second rotating seat (13), and a blade (22) provided on the support shaft (21). The support shaft (21) is rotationally matched with the first rotating seat (12) and the second rotating seat (13). The blades (22) are circumferentially distributed on the support shaft (21). One end of the support shaft (21) connected to the second rotating seat (13) deviates outward from the main shaft (11), so that an angle is formed between the support shaft (21) and the main shaft (11); Each of the cutting components (2) is circumferentially arranged between the first rotating seat (12) and the second rotating seat (13). When the tool holder (1) rotates, it drives the cutting component (2) to rotate. While the cutting component (2) revolves with the tool holder (1), the blade (22) of the cutting component (2) rotates around the support shaft (21).

2. The precise prostate partial resection device according to claim 1, characterized in that , a receiving space (14) is formed among the main shaft (11), the cutting component (2), and the second rotating seat (13).

3. The precise prostate partial resection device according to claim 2, characterized in that , a cleaning channel (15) communicating with the receiving space (14) is further provided on the tool holder (1) to connect a cleaning liquid to clean the receiving space (14) and the cutting component (2).

4. The precise prostate partial resection device according to claim 3, characterized in that , the cleaning channel (15) is formed in the main shaft (11) and the second rotating seat (13).

5. The precise prostate partial resection device according to claim 2, characterized in that , an adsorption channel (16) communicating with the receiving space (14) is further provided on the tool holder (1) to connect an adsorption device to adsorb the residues in the receiving space (14).

6. The precise prostate partial resection device according to claim 5, characterized in that , the adsorption channel (16) is formed in the main shaft (11) and / or the second rotating seat (13).

7. The precise prostate partial resection device according to any one of claims 1 to 6, characterized in that , the first rotating seat (12) is detachably mounted at the end of the main shaft (11).

8. The precise prostate partial resection device according to any one of claims 1 to 6, characterized in that , further including a support tube (3) sleeved on the outer ring of the second rotating seat (13). The support tube (3) is a metal tube body, and the support tube (3) is connected to a power supply to generate heat after being energized.

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