B ultrasonic positioning puncture support for percutaneous nephroscope surgery

Abstract

The invention relates to the technical field of medical equipment, in particular to a B-ultrasonic positioning puncture stent for percutaneous nephroscope surgery, which comprises a clamping frame, a side plate is fixedly connected to the side edge of the clamping frame, a needle cylinder is arranged on the outer surface of the side plate, an extension assembly is arranged in the needle cylinder, a fastening assembly is arranged in the extension assembly, and the fastening assembly is fixedly connected with the clamping frame. An adsorption assembly is arranged at the bottom end of the needle cylinder. Compared with the prior art, the extending assembly is arranged in the needle cylinder, a positioning block can slide into a cylinder from a positioning groove by rotating a rotating rod, the rotating rod is conveniently pushed to drive the extending cylinder to slide downwards to be close to the skin of a patient, and the positioning block can be driven to be clamped into the positioning groove by reversely rotating the rotating rod; and a puncture needle is inserted into the needle cylinder, so that a specified part of a patient can be punctured along the extension cylinder, and the accuracy during puncture is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to a B-ultrasound positioning puncture stent for percutaneous nephroscopic surgery. Background Art

[0002] Percutaneous nephrolithotomy is a minimally invasive surgical method for treating kidney disease. Under general or local anesthesia, B-ultrasound is used to observe the patient's kidney area, and then a puncture needle is used to enter the kidney. A guide wire is placed in the needle tube, and the needle core is withdrawn. The internal situation of the kidney is observed through the lens, and the lesions are treated. The puncture process requires the installation of a bracket on the lens, and the puncture needle is achieved with the auxiliary positioning of the bracket.

[0003] In the prior art, the positioning puncture bracket is fixed on the lens. At this time, the syringe on the side of the bracket is still some distance away from the patient's skin. When inserting the puncture needle into the syringe and performing puncture, the doctor needs to control the puncture position of the needle, which requires high stability of the operator's hand. Once shaking occurs, the puncture is easily offset, and pathological sampling is required after the puncture. The bracket has low clamping stability for the puncture needle, and the operator needs to keep the puncture needle stable. Therefore, the present application provides a B-ultrasound positioning puncture bracket for percutaneous nephrolithotomy to meet the requirements of precise positioning during puncture and maintain the stability of the puncture needle. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a B-ultrasound positioning puncture stent for percutaneous nephroscopic surgery to solve the problems of insufficient puncture position accuracy and low stability.

[0005] Based on the above purpose, the present invention provides a B-ultrasound positioning puncture bracket for percutaneous nephroscopic surgery, comprising a clamp frame, the side of the clamp frame is fixedly connected to a side plate, the outer surface of the side plate is provided with a syringe, the interior of the syringe is provided with an extension component, the interior of the extension component is provided with a fastening component, and the bottom end of the syringe is provided with an adsorption component;

[0006] The extension component is movably arranged inside the syringe and moves along the syringe. The fastening component acts on the inside of the extension component to fix the puncture needle inserted into the syringe. The adsorption component is placed at the bottom of the extension component.

[0007] Preferably, the extension assembly includes an extension tube movably connected to the inside of the syringe, the outer surface of the extension tube is fixedly connected to a cylinder, the inside of the cylinder is movably connected to a rotating rod, the outer surface of the syringe is provided with a track, and the cylinder slides inside the track.

[0008] Preferably, one end of the rotating rod extending into the cylinder is movably connected to a positioning block, a through hole is penetrated through the inner wall of the cylinder, the positioning block is slidably engaged inside the through hole, a spring is provided on the inner wall of the cylinder, and the end of the spring away from the cylinder is connected to the positioning block.

[0009] Preferably, the inner wall of the track is provided with positioning grooves, and the positioning grooves are provided with two groups and are symmetrically arranged on the inner walls at the upper and lower sides of the track, and the positioning blocks are clamped in the positioning grooves.

[0010] Preferably, the fastening assembly includes a support fixedly connected to the inner wall of the extension tube, a semicircular plate is movably connected to the inner side of the support, a notch is provided in the middle of the semicircular plate, and a torsion spring is provided at the connection between the semicircular plate and the support.

[0011] Preferably, a center rod is movably inserted into the outer surface of the extension tube, a hinge plate is fixedly connected to the outer surface of the center rod, a positioning seat is fixedly connected to the outer surface of the extension tube, a rocker is movably connected to the inner side of the positioning seat, a push rod is hinged on the lower surface of the semicircular plate, and a sliding rod is hinged on one end of the push rod away from the semicircular plate.

[0012] Preferably, one end of the seesaw is movably connected to the side plate of the hinge plate, and the other end of the seesaw is movably connected to a sliding rod, and the sliding rod is movably inserted into the inner wall of the extension tube.

[0013] Preferably, the adsorption assembly comprises an inner tube ring fixedly connected to the bottom end of the extension tube, an outer tube ring is movably sleeved on the outer surface of the inner tube ring, and a suction cup is arranged at the bottom end of the outer tube ring.

[0014] Preferably, a clamping block is fixedly connected to the inner wall of the outer cylinder ring, and an arc-shaped groove is formed on the outer surface of the inner cylinder ring, and the clamping block slides inside the arc-shaped groove.

[0015] Preferably, the side plate of the clamp frame is provided with a clamp plate, the surface of the side plate is movably clamped with an adjusting bolt, and the end of the adjusting bolt is movably connected to the syringe.

[0016] Beneficial effects of the present invention:

[0017] 1. This type of B-ultrasound positioning puncture bracket for percutaneous nephroscopic surgery is arranged in an extension component and a syringe. By rotating the rotary rod, the positioning block can slide from the positioning groove into the inside of the cylinder, so that the rotary rod can be pushed to drive the extension tube to slide downward close to the patient's skin. The positioning block can be driven to fit into the positioning groove by rotating the rotary rod in the opposite direction. The puncture needle can be inserted into the syringe and pierced into the designated part of the patient along the extension tube, thereby ensuring the accuracy of puncture.

[0018] 2. This type of B-ultrasound positioning puncture bracket for percutaneous nephrolithotomy has a fastening component and an interior of an extension tube, and utilizes the reverse force of the torsion spring after being squeezed to push the semicircular block to clamp the puncture needle, thereby improving the stability of the puncture needle in the syringe. In addition, the principle of the tilting rod can be used to loosen the semicircular plate when the center rod is pressed, so that the puncture needle can be easily pulled out.

[0019] 3. This type of B-ultrasound positioning puncture bracket for percutaneous nephrolithotomy is provided with an adsorption component and the bottom end of the extension tube. By rotating the outer tube ring to drive the clamping block to slide in the arc groove, the outer tube ring moves downward and squeezes the suction cup. This can ensure that the suction cup fits tightly and will not change position due to slight movement of the patient, thereby further ensuring the accuracy of the puncture. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the syringe structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the extension assembly of the present invention;

[0024] Figure 4 It is a schematic diagram of the internal structure of the cylinder of the present invention;

[0025] Figure 5 This is a schematic structural diagram of the fastening assembly of the present invention from a first viewing angle;

[0026] Figure 6 This is a schematic structural diagram of the fastening assembly of the present invention from a second viewing angle;

[0027] Figure 7 It is a schematic diagram of the structure of the adsorption component of the present invention.

[0028] The markings in the figure are:

[0029] 1. Clamp frame; 2. Clamp plate; 3. Side plate; 4. Syringe; 5. Adjusting bolt; 6. Extension assembly; 601. Extension cylinder; 602. Cylinder; 603. Rotary rod; 604. Track; 605. Positioning groove; 606. Positioning block; 607. Through port; 608. Spring; 7. Fastening assembly; 701. Support; 702. Semicircular plate; 703. Torsion spring; 704. Center rod; 705. Hinge plate; 706. Positioning seat; 707. Rocker; 708. Sliding rod; 709. Push rod; 710. Notch; 8. Adsorption assembly; 801. Inner cylinder ring; 802. Outer cylinder ring; 803. Suction cup; 804. Block; 805. Arc groove. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0031] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0032] like Figures 1 to 7 As shown, the B-ultrasound positioning puncture bracket for percutaneous nephroscopic surgery includes a clamping frame 1, a side plate 3 is fixedly connected to the side of the clamping frame 1, a syringe 4 is arranged on the outer surface of the side plate 3, an extension component 6 is arranged inside the syringe 4, a fastening component 7 is arranged inside the extension component 6, an adsorption component 8 is arranged at the bottom end of the syringe 4, the extension component 6 is movably arranged inside the syringe 4 and moves along the syringe 4, the fastening component 7 acts on the inside of the extension component 6 to fix the puncture needle inserted into the syringe 4, the adsorption component 8 is placed at the bottom of the extension component 6, the side plate 3 of the clamping frame 1 is provided with a clamping plate 2, the surface of the side plate 3 is movably clamped with an adjusting bolt 5, and the end of the adjusting bolt 5 is movably connected to the syringe 4;

[0033] Open the splint 2 and put the clamp frame 1 on the outside of the B-ultrasound lens, then close and lock the splint 2, turn the adjusting bolt 5 to adjust the inclination angle of the syringe 4, then push the extension component 6 close to the patient's skin, insert the puncture needle into the syringe 4 and pierce the designated part of the patient along the extension tube 601, thereby ensuring the accuracy of puncture. The adsorption component 8 can ensure that the tightness of the fit is improved, and the fastening component 7 can lock the puncture needle in one direction, thereby improving the stability of the puncture needle in the syringe 4.

[0034] like Figure 2 , Figure 3 and Figure 4 As shown, the extension assembly 6 includes an extension cylinder 601 movably connected to the inside of the syringe 4, the outer surface of the extension cylinder 601 is fixedly connected with a cylinder 602, the inside of the cylinder 602 is movably connected with a rotating rod 603, the outer surface of the syringe 4 is provided with a track 604, the cylinder 602 slides inside the track 604, one end of the rotating rod 603 extending into the cylinder 602 is movably connected with a positioning block 606, the inner wall of the cylinder 602 is penetrated with a through hole 607, the positioning block 606 is slidably engaged inside the through hole 607, the inner wall of the cylinder 602 is provided with a spring 608, the end of the spring 608 away from the cylinder 602 is connected to the positioning block 606, the inner wall of the track 604 is provided with a positioning groove 605, the positioning groove 605 is provided with two groups and symmetrically arranged on the inner walls of the upper and lower sides of the track 604, and the positioning block 606 is engaged in the positioning groove 605;

[0035] After the clamping frame 1 is clamped and fixed on the B-ultrasound lens, the rotating rod 603 is rotated forward, and the rotating rod 603 rotates inside the cylinder 602 and drives the positioning block 606 to slide inside the through opening 607. After the positioning block 606 is completely retracted into the cylinder 602, the rotating rod 603 is pushed to slide inside the track 604, and at the same time drives the extension tube 601 to slide downward close to the patient's skin. After moving to the bottom, the rotating rod 603 is rotated in the opposite direction. The rotating rod 603 rotates and drives the positioning block 606 to slide inside the through opening 607 and be clamped in the positioning groove 605. Under the self-locking state formed by the reverse setting of the spring 608 and the two positioning blocks 606, the locking of the cylinder 602 in the track 604 can be guaranteed. At this time, the puncture needle can be directly inserted into the syringe 4 to pierce the designated part of the patient along the extension tube 601, thereby ensuring the accuracy of puncture.

[0036] like Figure 2 , Figure 5 and Figure 6As shown, the fastening assembly 7 includes a support 701 fixedly connected to the inner wall of the extension tube 601, a semicircular plate 702 is movably connected to the inner side of the support 701, a notch 710 is provided in the middle of the semicircular plate 702, a torsion spring 703 is provided at the connection between the semicircular plate 702 and the support 701, a center rod 704 is movably inserted into the outer surface of the extension tube 601, a hinge plate 705 is fixedly connected to the outer surface of the center rod 704, a positioning seat 706 is fixedly connected to the outer surface of the extension tube 601, a rocker plate 707 is movably connected to the inner side of the positioning seat 706, a push rod 709 is hinged to the lower surface of the semicircular plate 702, and a sliding rod 708 is hinged to one end of the push rod 709 away from the semicircular plate 702, one end of the rocker plate 707 is movably connected to the side plate 3 of the hinge plate 705, and the other end of the rocker plate 707 is movably connected to the sliding rod 708, and the sliding rod 708 is movably inserted into the inner wall of the extension tube 601;

[0037] When the puncture needle is inserted, the puncture needle will slide through the middle notch 710 of the two semicircular blocks, and the friction force will drive the semicircular blocks to rotate around the support 701, and the torsion spring 703 will be squeezed during the rotation. The elastic force of the torsion spring 703 acts on the semicircular blocks, so that the semicircular blocks can clamp the puncture needle, and the upward movement of the puncture needle will be blocked by the clamping of the semicircular blocks, thereby improving the stability of the puncture needle in the syringe 4. When the puncture needle needs to be pulled out, pressing the center rod 704 will drive the hinge plate 705 to move, and at the same time drive the rocker 707 to rotate around the positioning seat 706. The other end of the rocker 707 will pull the sliding rod 708 to move outward, and then pull the semicircular plate 702 to rotate through the push rod 709, so that the semicircular plate 702 releases the clamping of the puncture needle, which is convenient for pulling out the puncture needle.

[0038] like Figure 2 and Figure 7 As shown, the adsorption assembly 8 includes an inner tube ring 801 fixedly connected to the bottom end of the extension tube 601, an outer tube ring 802 is movably sleeved on the outer surface of the inner tube ring 801, a suction cup 803 is arranged at the bottom end of the outer tube ring 802, a clamping block 804 is fixedly connected to the inner wall of the outer tube ring 802, an arc groove 805 is opened on the outer surface of the inner tube ring 801, and the clamping block 804 slides inside the arc groove 805;

[0039] Pushing the extension tube 601 to move downward will cause the suction cup 803 to fit the patient's puncture site, and then rotating the outer tube ring 802 to rotate around the inner tube ring 801. The block 804 slides in the arc groove 805 to move the outer tube ring 802 downward, thereby squeezing the suction cup 803, ensuring that the suction cup 803 fits tightly and will not change position due to slight movement of the patient, thereby further ensuring the accuracy of puncture.

[0040] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the above aspects of the present invention, which are not provided in detail for the sake of simplicity.

[0041] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A B-ultrasound positioning puncture stent for percutaneous nephroscopic surgery, characterized in that: include: A clamping frame (1), wherein a side plate (3) is fixedly connected to the side of the clamping frame (1), a syringe (4) is arranged on the outer surface of the side plate (3), an extension component (6) is arranged inside the syringe (4), a fastening component (7) is arranged inside the extension component (6), and an adsorption component (8) is arranged at the bottom end of the syringe (4); The extension component (6) is movably arranged inside the syringe (4) and moves along the syringe (4); the fastening component (7) acts on the inside of the extension component (6) to fix the puncture needle inserted into the syringe (4); and the adsorption component (8) is placed at the bottom of the extension component (6).

2. The B-ultrasound positioning puncture stent for percutaneous nephroscopic surgery according to claim 1, characterized in that: The extension assembly (6) comprises an extension tube (601) movably connected to the inside of the syringe (4); the outer surface of the extension tube (601) is fixedly connected to a cylinder (602); the inside of the cylinder (602) is movably connected to a rotating rod (603); the outer surface of the syringe (4) is provided with a track (604), and the cylinder (602) slides inside the track (604).

3. The B-ultrasound positioning puncture stent for percutaneous nephroscopic surgery according to claim 2, characterized in that: One end of the rotating rod (603) extending into the cylinder (602) is movably connected to a positioning block (606); a through hole (607) is formed through the inner wall of the cylinder (602); the positioning block (606) is slidably engaged inside the through hole (607); a spring (608) is provided on the inner wall of the cylinder (602); and the end of the spring (608) away from the cylinder (602) is connected to the positioning block (606).

4. The B-ultrasound positioning puncture stent for percutaneous nephroscopic surgery according to claim 3, characterized in that: The inner wall of the track (604) is provided with a positioning groove (605), and the positioning groove (605) is provided with two groups of inner walls symmetrically arranged on the upper and lower sides of the track (604), and the positioning block (606) is clamped in the positioning groove (605).

5. The B-ultrasound positioning puncture stent for percutaneous nephroscopic surgery according to claim 4, characterized in that: The fastening assembly (7) comprises a support (701) fixedly connected to the inner wall of the extension tube (601), a semicircular plate (702) is movably connected to the inner side of the support (701), a notch (710) is provided in the middle of the semicircular plate (702), and a torsion spring (703) is provided at the connection between the semicircular plate (702) and the support (701).

6. The B-ultrasound positioning puncture stent for percutaneous nephroscopic surgery according to claim 5, characterized in that: A center rod (704) is movably inserted into the outer surface of the extension tube (601), and a hinge plate (705) is fixedly connected to the outer surface of the center rod (704). A positioning seat (706) is fixedly connected to the outer surface of the extension tube (601), and a rocker plate (707) is movably connected to the inner side of the positioning seat (706). A push rod (709) is hinged on the lower surface of the semicircular plate (702), and a sliding rod (708) is hinged on one end of the push rod (709) away from the semicircular plate (702).

7. The B-ultrasound positioning puncture stent for percutaneous nephroscopic surgery according to claim 6, characterized in that: One end of the seesaw (707) is movably connected to the side plate (3) of the hinge plate (705), and the other end of the seesaw (707) is movably connected to the slide rod (708), and the slide rod (708) is movably inserted into the inner wall of the extension tube (601).

8. The B-ultrasound positioning puncture stent for percutaneous nephroscopic surgery according to claim 7, characterized in that: The adsorption assembly (8) comprises an inner tube ring (801) fixedly connected to the bottom end of the extension tube (601), an outer tube ring (802) is movably sleeved on the outer surface of the inner tube ring (801), and a suction cup (803) is provided at the bottom end of the outer tube ring (802).

9. The B-ultrasound positioning puncture stent for percutaneous nephroscopic surgery according to claim 8, characterized in that: A clamping block (804) is fixedly connected to the inner wall of the outer cylinder ring (802), and an arc-shaped groove (805) is opened on the outer surface of the inner cylinder ring (801), and the clamping block (804) slides inside the arc-shaped groove (805).

10. The B-ultrasound positioning puncture stent for percutaneous nephroscopic surgery according to claim 9, characterized in that: The side plate (3) of the clamp frame (1) is provided with a clamp plate (2), and an adjusting bolt (5) is movably clamped on the surface of the side plate (3), and the end of the adjusting bolt (5) is movably connected to the syringe (4).

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