Seat for perineal prostate puncture operation

Abstract

The invention discloses a seat for a perineal prostate puncture operation. The seat comprises a seat body, a leg support assembly, an angle adjusting assembly and a horizontal position adjusting assembly, the seat body is movably connected with the leg support assembly, and the seat body is further provided with a semicircular defect area; the angle adjusting assembly is connected with the leg support assembly; a groove is formed in the fixed sleeve, the first end of the connecting rod is connected with the leg support assembly, the second end of the connecting rod is connected with the rotating shaft, the rotating shaft is rotationally arranged in the fixed sleeve, and the connecting rod is located in the groove; the horizontal position adjusting assembly is connected with the fixing sleeve. A patient is examined and operated through the semicircular defect area; the rotating shaft rotates in the fixing sleeve to drive the connecting rod to rotate so as to adjust the lifting height and angle of the thighs of the patient, the angle between the two thighs of the patient is adjusted through the horizontal position adjusting assembly, it can be guaranteed that an operation area is well exposed in an operation, the comfort of the patient can be considered, and the convenience of the operation is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more specifically, to a chair used for transperineal prostate puncture surgery. Background Art

[0002] Ultrasound-guided prostate biopsy is the most commonly used method for diagnosing prostate cancer. The commonly used puncture methods include transrectal puncture and transperineal puncture. The former is simpler and easier than the latter. However, with the increase of intestinal drug-resistant bacteria, the high incidence of post-transrectal puncture infection has gradually become more prominent. In addition, transrectal puncture is prone to miss the lesions at the prostate tip, resulting in a high false negative rate. However, transperineal puncture can effectively reduce the incidence of post-puncture infection and has a high detection rate for lesions at the tip and transitional zone. It has been widely used in clinical practice in recent years.

[0003] Transperineal prostate puncture requires the patient to maintain a lithotomy position. In order to maintain a standard and stable posture, a dedicated examination bed is often required for the operation. However, dedicated examination beds are expensive and occupy a large area. In most medical institutions, in order to make full use of space and ultrasound equipment, an examination bed and ultrasound equipment need to complete multiple operations, but a fixed-shaped dedicated examination bed can only complete one operation, which is not conducive to the optimization of medical resources.

[0004] Therefore, how to provide a chair for transperineal prostate puncture surgery has become a technical problem that urgently needs to be solved in this field. Summary of the invention

[0005] An object of the present invention is to provide a new technical solution for a chair for transperineal prostate puncture surgery.

[0006] According to a first aspect of the present invention, there is provided a chair for transperineal prostate puncture surgery, comprising: a chair body, a leg support assembly, an angle adjustment assembly and a horizontal position adjustment assembly;

[0007] The seat body is movably connected to the leg support assembly, and the leg support assembly is used to place the patient's legs; the seat body also has a semicircular defect area for providing an operating space for puncture surgery;

[0008] The angle adjustment assembly is connected to the leg support assembly and is used to adjust the angle of the leg support assembly; the angle adjustment assembly includes a connecting rod, a rotating shaft and a fixed sleeve, the fixed sleeve is provided with a groove, the first end of the connecting rod is connected to the leg support assembly, the second end of the connecting rod is connected to the rotating shaft, the rotating shaft is rotatably arranged in the fixed sleeve, and the connecting rod is located in the groove;

[0009] The horizontal position adjustment assembly is connected to the fixing sleeve and is used to drive the fixing sleeve to move horizontally so as to make the leg support assembly rotate horizontally.

[0010] Optionally, the angle adjustment assembly further includes a limiting portion, which is respectively arranged on both sides of the groove and connected to the fixing sleeve for limiting the rotation position of the connecting rod.

[0011] Optionally, the limiting portion includes a baffle, a knob, a rotating rod and a nut, the nut is fixed on the fixed sleeve, the first end of the rotating rod passes through the nut and is connected to the baffle, and the rotating rod is threadedly connected to the nut, the second end of the rotating rod is connected to the knob, and the baffle is located in the groove.

[0012] Optionally, the seat body includes a backrest, a base and armrests, the first end of the backrest is rotatably connected to the first end of the base, the armrests are arranged on both sides of the base, and the semicircular defect area is located on the second end of the base.

[0013] Optionally, the seat body further comprises a headrest, which is arranged at the second end of the backrest, and the seat body is wrapped with waterproof leather or waterproof cloth and filled with sponge and space cotton.

[0014] Optionally, the diameter of the semicircular defect area is 20 cm-30 cm.

[0015] Optionally, the leg rest assembly includes a support plate, an extension rod and a pedal, the first end of the support plate is connected to the seat body, the second end of the support plate is movably connected to the first end of the extension rod, and the second end of the extension rod is connected to the pedal.

[0016] Optionally, the leg support assembly also includes a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are both arranged on the end surface of the support plate, the bottom of the first connecting plate is connected to the connecting rod, and the second connecting plate is movably connected to the first end of the extension rod.

[0017] Optionally, the horizontal position adjustment assembly includes a fixed rod, an inner cylinder, an outer cylinder and a bearing, the fixed rod is threadedly connected to the inner wall of the inner cylinder, the outer wall of the inner cylinder is connected to the inner wall of the outer cylinder through the bearing, and the outer wall of the outer cylinder is connected to the seat body.

[0018] Optionally, the horizontal position adjustment assembly further comprises a fixing plate, the fixing plate is provided with a mounting hole, and the seat body is correspondingly provided with a connecting hole, and the outer cylinder is fixed to the seat body by installing fastening bolts on the mounting hole and the connecting hole.

[0019] The beneficial effects of the present invention are:

[0020] The present invention movably connects the seat body with the leg support assembly, and sets a semicircular defect area on the seat body. The first end of the connecting rod is connected to the leg support assembly, and the second end of the connecting rod is connected to the rotating shaft. The rotating shaft is rotatably set in a fixed sleeve, and the connecting rod is located in a groove, so that the horizontal position adjustment assembly is connected to the fixed sleeve. When in use, the patient sits on the chair body with the patient's legs placed on the leg rest assembly, and the patient's buttocks are located around the semicircular defect area, and the doctor examines and operates on the patient through the semicircular defect area; when the position of the patient's legs needs to be adjusted, the rotating shaft is rotated in the fixed sleeve to drive the connecting rod to rotate, and the rotation of the connecting rod drives the leg rest assembly to rotate, thereby adjusting the height and angle of the patient's thigh lift; and the fixed sleeve is driven to move horizontally through the horizontal position adjustment assembly to rotate the leg rest assembly horizontally, thereby adjusting the angle between the patient's two thighs, which can not only ensure good exposure of the operating area during the operation, but also take into account the patient's comfort, thereby improving the convenience of the operation. The chair for transperineal prostate puncture surgery of the present invention can meet the special needs of transperineal prostate puncture, but also can be flexibly moved, and occupies a small area, and can be stored when not in use, and does not occupy the consulting room.

[0021] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0023] Figure 1 It is a structural diagram of a chair for transperineal prostate puncture surgery of the present invention;

[0024] Figure 2 It is a structural diagram of the seat body of the present invention;

[0025] Figure 3 is a structural diagram of the leg support assembly of the present invention;

[0026] Figure 4 A structural diagram showing the connection between the support plate, the angle adjustment assembly and the horizontal position adjustment assembly of the present invention;

[0027] Figure 5 It is a structural diagram of the angle adjustment assembly of the present invention;

[0028] Figure 6 It is a structural diagram of the limiting part of the present invention;

[0029] Figure 7 It is a structural diagram of the horizontal position adjustment component of the present invention.

[0030] The markings in the figure are as follows: 1. Seat body; 11. Backrest; 12. Base; 13. Armrest; 14. Headrest; 15. Connecting hole; 2. Leg support assembly; 21. Support plate; 22. Extension rod; 23. Pedal; 24. First connecting plate; 25. Second connecting plate; 3. Angle adjustment assembly; 31. Connecting rod; 32. Rotating shaft; 33. Fixed sleeve; 34. Groove; 35. Baffle; 36. Knob; 37. Rotating rod; 38. Nut; 39. Opening; 4. Horizontal position adjustment assembly; 41. Fixed rod; 42. Inner cylinder; 43. Outer cylinder; 44. Fixed plate; 5. Semicircular defect area. DETAILED DESCRIPTION

[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0032] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0034] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0035] like Figures 1 to 7 As shown, an embodiment of the present invention provides a chair for transperineal prostate puncture surgery, including: a chair body 1, a leg support assembly 2, an angle adjustment assembly 3 and a horizontal position adjustment assembly 4.

[0036] The seat body 1 is movably connected to the leg rest assembly 2, and the leg rest assembly 2 is used to place the patient's legs; the seat body 1 also has a semicircular defect area 5, which is located in the patient's buttocks area and is used to provide an operating space for puncture surgery.

[0037] There are two leg rest assemblies 2 , which are respectively arranged on the seat body 1 , and the two legs of the patient are respectively placed on the two leg rest assemblies 2 .

[0038] The angle adjustment component 3 is connected to the leg rest component 2, and the angle adjustment component 3 is used to adjust the angle of the leg rest component 2; the angle adjustment component 3 includes a connecting rod 31, a rotating shaft 32 and a fixed sleeve 33, the fixed sleeve 33 is provided with a groove 34, the first end of the connecting rod 31 is connected to the leg rest component 2, the second end of the connecting rod 31 is connected to the rotating shaft 32, the rotating shaft 32 is rotatably set in the fixed sleeve 33, and the connecting rod 31 is located in the groove 34.

[0039] Specifically, the angle adjustment component 3 and the horizontal position adjustment component 4 are both arranged below the leg support component 2. The connecting rod 31 is made of stainless steel, which can ensure the strength and stability of the connection, and can be fixed to the rotating shaft 32 and the leg support component 2 by welding or bolting. The connecting rod 31 is about 5 cm long, and can be cylindrical or cubic, with a thickness of 2 cm-3 cm. The fixing sleeve 33 is made of high-hardness stainless steel and has a thickness of 0.3 cm-0.5 cm. The width of the groove 34 is 3 cm-5 cm, which can accommodate the connecting rod 31, and the leg support component 2 can adjust the angle up and down as the rotating shaft 32 rolls.

[0040] The fixing sleeve 33 has an opening 39 that passes through the fixing sleeve 33. The grooves 34 are located on both sides of the opening 39. The connecting rod 31 moves in the groove 34 and drives the rotating shaft 32 to rotate during the movement. That is, the connecting rod 31 is equivalent to a rotating shaft to drive the two ends of the leg support assembly 2 to rotate. Figure 4 As shown, when the height and angle of the patient's thigh need to be raised, the operator controls the connecting rod 31 to rotate counterclockwise to rotate one end of the leg support assembly 2 connected to the seat body 1, and the other end of the leg support assembly 2 is raised upward. When the height and angle of the patient's thigh need to be lowered, the operator controls the connecting rod 31 to rotate clockwise to rotate one end of the leg support assembly 2 connected to the seat body 1, and the other end of the leg support assembly 2 is lowered downward.

[0041] The horizontal position adjustment component 4 is connected to the fixing sleeve 33 and is used to drive the fixing sleeve 33 to move horizontally so that the leg support component 2 can rotate horizontally.

[0042] Specifically, when performing transperineal prostate surgery, the patient sits on the chair body 1, the patient's legs are placed on the leg support assembly 2, and the patient's buttocks are located around the semicircular defect area 5. The doctor examines and performs surgery on the patient through the semicircular defect area 5.

[0043] When the angle of the patient's legs needs to be adjusted, the rotating shaft 32 is rotated in the fixed sleeve 33 to drive the connecting rod 31 to rotate, and the rotation of the connecting rod 31 drives the leg support assembly 2 to rotate, thereby adjusting the height and angle of the patient's thigh lift; and the fixed sleeve 33 is driven to move horizontally through the horizontal position adjustment assembly 4 to make the leg support assembly 2 rotate horizontally, thereby adjusting the angle between the patient's two thighs.

[0044] The present invention movably connects the seat body 1 with the leg rest assembly 2, and sets a semicircular defect area 5 on the seat body 1. The first end of the connecting rod 31 is connected to the leg rest assembly 2, and the second end of the connecting rod 31 is connected to the rotating shaft 32. The rotating shaft 32 is rotatably set in the fixed sleeve 33, and the connecting rod 31 is located in the groove 34, so that the horizontal position adjustment assembly 4 is connected to the fixed sleeve 33. When in use, the patient sits on the chair body 1, the patient's legs are placed on the leg support assembly 2, the patient's buttocks are located around the semicircular defect area 5, and the doctor examines and operates on the patient through the semicircular defect area 5; when the position of the patient's legs needs to be adjusted, the connecting rod 31 is driven to rotate by rotating the rotating shaft 32 in the fixed sleeve 33, and the rotation of the connecting rod 31 drives the leg support assembly 2 to rotate, thereby adjusting the height and angle of the patient's thigh lift; and the fixed sleeve 33 is driven to move horizontally through the horizontal position adjustment assembly 4, so that the leg support assembly 2 is rotated horizontally, thereby adjusting the angle between the patient's two thighs, which can not only ensure good exposure of the operating area during the operation, but also take into account the patient's comfort, thereby improving the convenience of the operation. The chair for transperineal prostate puncture surgery of the present invention can meet the special needs of transperineal prostate puncture, but also can be flexibly moved, and has a small footprint, can be stored when not in use, and does not occupy the consulting room.

[0045] In one embodiment of the chair for transperineal prostate puncture surgery of the present invention, Figures 4 to 7 As shown, the angle adjustment assembly 3 further includes a limiting portion, which is respectively arranged on both sides of the groove 34 and connected to the fixing sleeve 33 , and is used to limit the rotation position of the connecting rod 31 .

[0046] The present invention arranges the limiting parts on both sides of the groove 34 respectively, and connects the limiting parts to the fixing sleeve 33, so as to limit the moving connecting rod 31 through the limiting parts, thereby avoiding the problem of movement of the connecting rod 31 during the operation.

[0047] In one embodiment of the chair for transperineal prostate puncture surgery of the present invention, Figures 4 to 7 As shown, the limiting portion includes a baffle 35, a knob 36, a rotating rod 37 and a nut 38. The nut 38 is fixed on the fixed sleeve 33. The first end of the rotating rod 37 passes through the nut 38 and is connected to the baffle 35. The rotating rod 37 is threadedly connected to the nut 38. The second end of the rotating rod 37 is connected to the knob 36. The baffle 35 is located in the groove 34.

[0048] Specifically, the baffle 35 has a thickness of 0.5 cm, a width of 0.5 cm, and a length of 2 cm. The baffle 35 can stabilize the rotating shaft 32 to ensure that the rotating shaft 32 and the connecting rod 31 will not loosen at will after the angle adjustment is completed.

[0049] When the connecting rod 31 moves and adjusts the leg support assembly 2 to an angle convenient for surgery, the operator acts on the knob 36 to rotate the rotating rod 37, thereby driving the baffle 35 to rotate until the baffle 35 moves to the side of the rotating shaft 32, thereby achieving a limiting effect on the connecting rod 31.

[0050] In one embodiment of the chair for transperineal prostate puncture surgery of the present invention, Figure 1 and Figure 2 As shown, the seat body 1 includes a backrest 11, a base 12 and an armrest 13. The first end of the backrest 11 is rotatably connected to the first end of the base 12. The armrest 13 is arranged on both sides of the base 12. The semicircular defect area 5 is located on the second end of the base 12.

[0051] Specifically, the overall length of the seat body 1 is 120 cm-150 cm, the width is 60 cm-80 cm, and the thickness is 10 cm-15 cm. The ratio of the backrest 11 to the base 12 is 6:4 (the ratio can be adjusted according to needs).

[0052] The backrest 11 can be adjusted in multiple levels and can be bent to a certain extent. The backrest 11 and the base 12 are connected by an adjustment shaft so that the backrest 11 and the base 12 can be rotated between 90° and 180°, so that the patient can sit on the chair body 1 more comfortably.

[0053] The armrest 13 has a length of 10 cm-15 cm and a height of 8 cm-10 cm. The armrest 13 can be integrally formed with the base 12 or connected to the base 12 by bolts, and can be fixed or detachable and extendable.

[0054] In one embodiment of the chair for transperineal prostate puncture surgery of the present invention, Figure 2 As shown, the seat body 1 also includes a headrest 14, which is arranged at the second end of the backrest 11. The seat body 1 is wrapped with waterproof leather or waterproof cloth and filled with sponge and space cotton.

[0055] Specifically, the size of the headrest 14 is designed to meet the needs of comfort, and can be fixed by Velcro or straps.

[0056] Moreover, the backrest 11, the base 12, the headrest 14 and the armrest 13 are all high-strength stainless steel tubes, filled with sponge, space cotton and other materials, the thickness of the filling is 8 cm-10 cm, to ensure the comfort of the seat, and the outside is wrapped with waterproof leather or waterproof cloth.

[0057] In one embodiment of the chair for transperineal prostate puncture surgery of the present invention, Figure 1 and Figure 2As shown, in order to improve the convenience of the puncture operation, the diameter of the semicircular defect area 5 is 20 cm-30 cm.

[0058] In one embodiment of the chair for transperineal prostate puncture surgery of the present invention, Figure 3 and Figure 4 As shown, the leg support assembly 2 includes a support plate 21, an extension rod 22 and a pedal 23. The first end of the support plate 21 is connected to the seat body 1, the second end of the support plate 21 is movably connected to the first end of the extension rod 22, and the second end of the extension rod 22 is connected to the pedal 23.

[0059] Specifically, the width of the support plate 21 is 15 cm-20 cm, the length is 20 cm-30 cm, and the thickness is 5 cm-8 cm. The material of the support plate 21 is a high-strength stainless steel tube. There are also support plates on both sides of the support plate 21, and the patient's legs are placed on the support plate 21, and the patient's legs are limited by the support plates.

[0060] The extension rod 22 has a certain length, and the extension rod 22 can be inserted into the support plate 21, or pulled out from the support plate 21 to change the length of the extension rod 22, so as to adapt to patients of different heights. There are two extension rods 22, one leg of the patient is placed between the two extension rods 22, and the patient's foot is placed on the pedal 23. The extension rod 22 is made of one-piece alloy steel, with a thickness of 0.5 cm-1 cm, and can be adjusted 360°.

[0061] The pedal 23 is made of stainless steel, with a width of 7 cm -10 cm and a length of 15 cm -20 cm. It is wrapped with a comfortable material such as sponge, and the outermost layer is waterproof leather or sponge. The patient's thigh is placed on the support board 21, the knee is bent, and the foot is placed on the pedal 23.

[0062] In one embodiment of the chair for transperineal prostate puncture surgery of the present invention, Figure 3 As shown, the leg support assembly 2 also includes a first connecting plate 24 and a second connecting plate 25. The first connecting plate 24 and the second connecting plate 25 are both arranged on the end surface of the support plate 21. The bottom of the first connecting plate 24 is connected to the connecting rod 31, and the second connecting plate 25 is movably connected to the first end of the extension rod 22.

[0063] Specifically, the first connecting plate 24 can be fixed to the support plate 21 by welding or riveting. The thickness of the second connecting plate 25 is 1 cm-2 cm. A mounting port is provided on the second connecting plate 25. The extension rod 22 is connected to the mounting port so that the extension rod 22 can be inserted into the second connecting plate 25 or pulled out from the second connecting plate 25 to a certain extent.

[0064] In one embodiment of the chair for transperineal prostate puncture surgery of the present invention, Figure 4 and Figure 7 As shown, the horizontal position adjustment assembly 4 includes a fixed rod 41, an inner cylinder 42, an outer cylinder 43 and a bearing. The fixed rod 41 is threadedly connected to the inner wall of the inner cylinder 42, the outer wall of the inner cylinder 42 is connected to the inner wall of the outer cylinder 43 through a bearing, and the outer wall of the outer cylinder 43 is connected to the seat body 1.

[0065] Specifically, the height of the drum and the outer cylinder 43 matches the height of the base 12, which is 8 cm-10 cm, and the bottom of the drum and the outer cylinder 43 is located at the same level as the base 12. The fixing sleeve 33 is fixed to the fixing rod 41 by welding or nuts 38.

[0066] When increasing the angle between the patient's legs, the operator acts on the fixing rod 41 to move the fixing rod 41 toward the outside of the patient's legs, thereby driving the support plate 21 to move toward the outside of the patient's legs, thereby increasing the angle between the patient's two legs, thereby completing the action of abduction of the patient's legs, and the angle can be flexibly adjusted, which can not only ensure good exposure of the intraoperative operating area, but also take into account the patient's comfort.

[0067] When reducing the angle between the patient's legs, the fixing rod 41 is moved toward the inside of the patient's legs to drive the support plate 21 to move inside the patient's legs, thereby reducing the angle between the two legs of the patient, thereby meeting the surgical requirements.

[0068] In addition, the present invention can further adapt to patients of different heights and body shapes by threading the fixing rod 41 and the inner wall of the inner tube 42, and then rotating the fixing rod 41 and the inner tube 42 to increase or decrease the height of the fixing rod 41.

[0069] In one embodiment of the chair for transperineal prostate puncture surgery of the present invention, Figure 7 As shown, the horizontal position adjustment assembly 4 further includes a fixing plate 44, on which a mounting hole is provided, and the seat body 1 is correspondingly provided with a connecting hole 15, and the outer cylinder 43 is fixed to the seat body 1 by installing fastening bolts in the mounting hole and the connecting hole 15. Specifically, the fixing plate 44 has a thickness of 0.2 cm-0.5 cm.

[0070] The present invention sets a mounting hole on the fixing plate 44 and a corresponding connecting hole 15 on the seat body 1, and installs fastening bolts on the mounting hole and the connecting hole 15 to fix the outer tube 43 on the seat body 1, thereby ensuring the stability of the outer tube 43 fixed on the seat body 1.

[0071] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A chair for transperineal prostate puncture surgery, characterized in that: include: Seat body, leg rest assembly, angle adjustment assembly and horizontal position adjustment assembly; The seat body is movably connected to the leg support assembly, and the leg support assembly is used to place the patient's legs; the seat body also has a semicircular defect area for providing an operating space for puncture surgery; The angle adjustment assembly is connected to the leg support assembly and is used to adjust the angle of the leg support assembly; the angle adjustment assembly includes a connecting rod, a rotating shaft and a fixed sleeve, the fixed sleeve is provided with a groove, the first end of the connecting rod is connected to the leg support assembly, the second end of the connecting rod is connected to the rotating shaft, the rotating shaft is rotatably arranged in the fixed sleeve, and the connecting rod is located in the groove; The horizontal position adjustment assembly is connected to the fixing sleeve and is used to drive the fixing sleeve to move horizontally so as to make the leg support assembly rotate horizontally.

2. The chair for transperineal prostate puncture surgery according to claim 1, characterized in that: The angle adjustment assembly further includes a limiting portion, which is respectively arranged on both sides of the groove and connected to the fixing sleeve for limiting the rotation position of the connecting rod.

3. The chair for transperineal prostate puncture surgery according to claim 2, characterized in that: The limiting portion includes a baffle, a knob, a rotating rod and a nut, the nut is fixed on the fixed sleeve, the first end of the rotating rod passes through the nut and is connected to the baffle, and the rotating rod is threadedly connected to the nut, the second end of the rotating rod is connected to the knob, and the baffle is located at the groove.

4. The chair for transperineal prostate puncture surgery according to claim 1, characterized in that: The seat body comprises a backrest, a base and armrests, the first end of the backrest is rotatably connected to the first end of the base, the armrests are arranged on both sides of the base, and the semicircular defect area is located on the second end of the base.

5. The chair for transperineal prostate puncture surgery according to claim 4, characterized in that: The seat body also includes a headrest, which is arranged at the second end of the backrest. The seat body is wrapped with waterproof leather or waterproof cloth and filled with sponge and space cotton.

6. The chair for transperineal prostate puncture surgery according to claim 1, characterized in that: The diameter of the semicircular defect area is 20 cm-30 cm.

7. The chair for transperineal prostate puncture surgery according to claim 1, characterized in that: The leg support assembly includes a support plate, an extension rod and a pedal, the first end of the support plate is connected to the seat body, the second end of the support plate is movably connected to the first end of the extension rod, and the second end of the extension rod is connected to the pedal.

8. The chair for transperineal prostate puncture surgery according to claim 7, characterized in that: The leg support assembly also includes a first connecting plate and a second connecting plate, both of which are arranged on the end surface of the support plate, the bottom of the first connecting plate is connected to the connecting rod, and the second connecting plate is movably connected to the first end of the extension rod.

9. The chair for transperineal prostate puncture surgery according to any one of claims 1 to 8, characterized in that: The horizontal position adjustment assembly includes a fixing rod, an inner tube, an outer tube and a bearing. The fixing rod is threadedly connected to the inner wall of the inner tube. The outer wall of the inner tube is connected to the inner wall of the outer tube through the bearing. The outer wall of the outer tube is connected to the seat body.

10. The chair for transperineal prostate puncture surgery according to claim 9, characterized in that: The horizontal position adjustment assembly also includes a fixing plate, which is provided with a mounting hole, and the seat body is correspondingly provided with a connecting hole, and the outer cylinder is fixed to the seat body by installing fastening bolts on the mounting hole and the connecting hole.

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