Puncture device for kidney disease treatment

Abstract

The invention discloses a puncture device for kidney disease treatment, and relates to the technical field of puncture. The device comprises a shell which is provided with a through groove, and the end part of the shell is connected with an arc-shaped plate; the plate body is hinged to the opposite side of the shell, and a holding block is connected to the plate body; the outer side of the puncture needle is connected with a sleeve body and is in sliding fit with the through groove through the sleeve body, and the hinged end of the plate body is in linkage fit with the sleeve body through a transmission mechanism. The plate body and the sleeve body are linked through the transmission mechanism, after the limiting block is moved and the puncture stroke is preset, only the arc inner side of the arc-shaped plate needs to make contact with the skin face to form a stable fulcrum, and then an operator can drive the plate body to move towards the shell with one hand so that the sleeve body can drive the puncture needle to pierce the human body; the traditional operation depending on experience can be converted into a standardized controllable process, the puncture safety boundary is improved while the operation difficulty is reduced, and a more reliable instrument solution is provided for clinic.

Description

Technical Field

[0001] The present invention relates to the technical field of puncture, and particularly to a puncture device for the treatment of kidney diseases. Background Art

[0002] Renal puncture, also known as renal biopsy, is also called renal biopsy technique. Since there are many types of kidney diseases, the causes and pathogenesis are complex, and the clinical manifestations of many kidney diseases are not completely consistent with the histological changes of the kidneys. For example, the clinical manifestation is nephrotic syndrome, and the pathology can present various changes such as minimal change, mild change, mild mesangial proliferation, membranous nephropathy, membranoproliferative glomerulonephritis, focal segmental sclerosis, etc. The treatment plans and the development results of the disease also vary greatly. The traditional manual puncture needle "such as: a puncture device for the treatment of kidney diseases disclosed in CN212853591U" needs to be manually operated by the operator, and the puncture needle is pushed or rotated to enter the tissue. However, in actual use, complications (such as bleeding, insufficient sampling) are likely to occur due to the technical differences of the operator. In order to reasonably improve this problem, the present invention proposes a puncture device for the treatment of kidney diseases. Summary of the Invention

[0003] The purpose of the present invention is to solve the technical problem that the traditional manual puncture needle needs to be manually operated by the operator, and the puncture needle is pushed or rotated to enter the tissue, but in actual use, complications are likely to occur due to the technical differences of the operator. The present invention provides a puncture device for the treatment of kidney diseases.

[0004] The present invention specifically adopts the following technical solutions to achieve the above purpose:

[0005] A puncture device for the treatment of kidney diseases, comprising:

[0006] A housing, on which a through groove is opened, and an arc-shaped plate is connected to the end of the housing;

[0007] Two plate bodies, which are respectively hinged to the opposite sides of the housing, and a grip block is connected to the plate body;

[0008] A puncture needle, which is connected with a sleeve on the outside and is slidably matched with the through groove through the sleeve, and the hinged end of the plate body is linked and matched with the sleeve through a transmission mechanism;

[0009] A limit block, which is slidably installed on the housing and abuts against and overlaps with the side of the plate body facing the housing, and a scale is constructed on the outside of the housing to be used for displaying the sliding distance of the limit block;

[0010] A fixing part, which is arranged on the limit block to be used for fixing the limit block.

[0011] Furthermore, the fixing part includes a connecting plate, which is connected to one side of the limiting block. A receiving groove is formed on one side of the connecting plate, and a cylinder is constructed on the other side. A resisting block is arranged in the receiving groove. A lead screw is connected to the resisting block, threadedly penetrates through the cylinder, and is connected with a rotating handle. The outer side of the housing is frosted, and the resisting block is in contact and lapped with the housing.

[0012] Furthermore, the transmission mechanism includes a first gear mounted on the hinge shafts on both sides of the plate body. Two racks are connected to the sleeve body in a matching manner. Rotating rods are rotatably mounted on the opposite inner walls of the through groove. A second gear and a third gear are coaxially connected to the rotating rods, and are respectively meshed with the first gear and the rack.

[0013] Furthermore, a sealing block is plugged in the through groove and is away from the arc-shaped plate. The tip of the puncture needle slidably penetrates through the sealing block. A sealing film is arranged on the arc-shaped plate and covers the notch at the output end of the through groove. The tail end of the puncture needle is connected with a connector seat.

[0014] Furthermore, the number of the plate bodies is two, and they are respectively hinged on the opposite sides of the housing. The sleeve body is respectively connected with the two plate bodies through two transmission mechanisms. The number of the limiting blocks is two, and they are connected through the connecting plate.

[0015] Furthermore, the other sides of the two limiting blocks are connected through a strip-shaped plate and are close to the scale.

[0016] Furthermore, strip-shaped blocks are constructed on the opposite inner walls of the through groove. The sleeve body is slidably matched with the strip-shaped blocks. Limiting plates are connected to the ends of the strip-shaped blocks.

[0017] Furthermore, a disinfection component is arranged in the through groove for disinfecting the puncture needle passing through the sealing block.

[0018] Furthermore, the disinfection component includes an installation cavity constructed in the sealing block. A cotton block is arranged in the installation cavity. The tip of the puncture needle penetrates through the cotton block. A cylinder is constructed on the outer side of the sealing block and penetrates through the housing.

[0019] Furthermore, a through ring is arranged between the sealing block and the sealing film and is slidably matched with the puncture needle.

[0020] The beneficial effects of the present invention are as follows:

[0021] The present invention links the plate body and the sleeve body through the transmission mechanism. After moving the limiting block and presetting the puncture stroke, only need to make the inner side of the arc of the arc-shaped plate contact with the skin surface to form a stable fulcrum. Subsequently, the operator can drive the plate body to move towards the housing direction with one hand, so that the sleeve body drives the puncture needle to penetrate into the human body. Through the mutual cooperation of the above structures, the traditional operation relying on experience can be transformed into a standardized and controllable process, reducing the operation difficulty while improving the puncture safety margin, and providing a more reliable instrument solution for clinical practice. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three - dimensional structure diagram of the present invention;

[0023] Figure 2 is the present invention Figure 1 semi - sectional side view of the structure;

[0024] Figure 3 is the present invention Figure 2 enlarged view at A of the present invention;

[0025] Figure 4 is the present invention Figure 2 enlarged view at B of the present invention;

[0026] Figure 5 is the present invention Figure 1 partial structure sectional view of the present invention;

[0027] Figure 6 is the present invention Figure 5 enlarged view at C of the present invention;

[0028] Figure 7 is a three - dimensional structure schematic diagram of another angle of the present invention;

[0029] Figure 8 is the present invention Figure 7 semi - sectional schematic diagram of the structure;

[0030] Reference numerals: 1, housing; 2, through - slot; 3, arc - shaped plate; 4, plate body; 5, grip block; 6, puncture needle; 7, sleeve body; 8, transmission mechanism; 801, first gear; 802, rack; 803, rotating rod; 804, second gear; 805, third gear; 9, limiting block; 10, scale; 11, fixing part; 1101, connecting plate; 1102, accommodating groove; 1103, column; 1104, abutting block; 1105, lead screw; 1106, rotating handle; 12, sealing block; 13, sealing film; 14, joint seat; 15, strip - shaped plate; 16, strip - shaped block; 17, limiting plate; 18, disinfection member; 1801, installation cavity; 1802, cotton block; 1803, cylinder; 19, through - ring. DETAILED DESCRIPTION OF THE INVENTION

[0031] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0032] As Figures 1 - 8 shown, a puncture device for treating kidney diseases proposed in an embodiment of the present invention includes:

[0033] The housing 1 is strip-shaped. A through groove 2 is formed in the housing 1. The through groove 2 extends along the axis direction of the housing 1 and penetrates through both ends of the housing 1 respectively. An arc-shaped plate 3 is connected to the end of the housing 1. The end of the housing 1 is connected to the outer arc of the arc-shaped plate 3, and the inner arc of the arc-shaped plate 3 can be abutted against the human skin to increase stability and reduce deviation.

[0034] Two plate bodies 4 are respectively hinged to the opposite sides of the housing 1. A grip block 5 is connected to the plate body 4. The grip block 5 is made of rubber material and its shape fits the palm. When the plate body 4 is in the open state, the operator can hold the housing 1 and press the grip block 5 to make the plate body 4 rotate towards the housing 1 along its hinge axis.

[0035] The puncture needle 6 has a length shorter than that of the housing 1. A sleeve 7 is connected to the outside of the puncture needle 6. The sleeve 7 is a polypropylene sleeve 7 and is fixed on the surface of the puncture needle 6 by injection molding. The sleeve 7 extends along the length direction of the puncture needle 6 and is slidably matched with the through groove 2 through the sleeve 7. The puncture needle 6 can slide along its axis in the through groove 2 by means of the sleeve 7. The hinged end of the plate body 4 is linked and matched with the sleeve 7 through a transmission mechanism 8. When the plate body 4 rotates, it can drive the sleeve 7 to slide in the through groove 2 through the transmission mechanism 8. That is, the rotation angle of the plate body 4 and the puncture depth of the puncture needle 6 are in a direct proportional relationship. When the puncture needle 6 moves towards the arc-shaped plate 3, and since the plate body 4 forms a labor-saving lever structure with a longer power arm than the resistance arm through the hinge design, the resistance for driving the sleeve 7 to move can be significantly reduced, which is convenient for the puncture needle 6 to puncture human tissues.

[0036] The limit block 9 is slidably installed on the housing 1. The limit block 9 and the plate body 4 are located on the same side of the housing 1 and are in contact and overlap with the side of the plate body 4 facing the housing 1. When the plate body 4 rotates towards the housing 1, it will abut against the limit block 9, so that the plate body 4 cannot continue to move. Thus, by restricting the rotation angle of the plate body 4, the sliding distance of the sleeve 7 can be limited. A scale 10 is constructed on the outside of the housing 1 to be used for displaying the sliding distance of the limit block 9. The mutual cooperation of the limit block 9 and the scale 10 can preset the puncture stroke by sliding the limit block 9 and fix it through the fixing part 11. The maximum displacement of the puncture needle 6 can be rigidly limited through the mechanical contact between the limit block 9 and the plate body 4, realizing millimeter-level precision control, and the problems of over-puncture or insufficient depth caused by traditional visual estimation can be eliminated, especially suitable for complex clinical scenarios that require layered puncture.

[0037] The fixing part 11 is arranged on the limit block 9 to be used for fixing the limit block 9 so that the limit block 9 will not be displaced under the pressure of the plate body 4.

[0038] The present invention links the plate body 4 and the sleeve body 7 through a transmission mechanism 8. After moving the limit block 9 and presetting the puncture stroke, it is only necessary to make the inner arc of the arc-shaped plate 3 contact the skin surface to form a stable fulcrum. Subsequently, the operator can drive the plate body 4 to move towards the housing 1 with one hand, so that the sleeve body 7 drives the puncture needle 6 to penetrate into the human body. Through the mutual cooperation of the above structures, the operation that traditionally relies on experience can be transformed into a standardized and controllable process, reducing the operation difficulty while improving the puncture safety margin and providing a more reliable instrument solution for clinical practice.

[0039] As Figure 2 , Figure 4 and Figure 7 As shown in, in some embodiments, the fixing portion 11 includes a connecting plate 1101 and is connected to one side of the limit block 9. The connecting plate 1101 is parallel to one side of the housing 1. An accommodating groove 1102 is formed on one side of the connecting plate 1101. The accommodating groove 1102 is cylindrical and the groove opening faces the housing 1. A column 1103 is constructed on the other side thereof. The column 1103 is coaxial with the accommodating groove 1102. A resisting block 1104 is arranged in the accommodating groove 1102. The resisting block 1104 is made of rubber material. A lead screw 1105 is connected to the resisting block 1104 and threadedly penetrates through the column 1103 and is connected with a rotating handle 1106. After presetting the puncture stroke of the sliding limit block 9, the rotating handle 1106 can be rotated along the thread direction of the lead screw 1105. At this time, the resisting block 1104 can be driven to extend out of the accommodating groove 1102 and abut against the outer side of the housing 1, and the limit block 9 is fixed by the generated static friction resistance. The outer side of the housing 1 is frosted, that is, a frosted surface. The resisting block 1104 abuts and overlaps with the housing 1. Such a design can increase the roughness of the surface of the housing 1, thereby improving the abutting stability of the resisting block 1104.

[0040] As Figure 5 and Figure 6 As shown in, in some embodiments, the transmission mechanism 8 includes first gears 801 mounted on the hinge shafts on both sides of the plate body 4. Two racks 802 are connected to the sleeve body 7 in a matching manner. Rotating rods 803 are rotatably mounted on the opposite inner walls of the through groove 2, and a second gear 804 and a third gear 805 are coaxially connected thereto. The second gear 804 is a small gear, and the first gear 801 and the third gear 805 are large gears. That is, when the plate body 4 rotates, the first gear 801 that rotates slightly will drive, and the second gear 804 drives the third gear 805 to rotate multiple circles, and the third gear 805 drives the rack 802 to drive the sleeve body 7 to move.

[0041] As Figure 5As shown, in some embodiments, a sealing block 12 is sealed in the through groove 2, and the sealing block 12 is a rubber block, which cuts off the groove diameter of the through groove 2 and is away from the arc plate 3. The tip of the puncture needle 6 slides through the sealing block 12, and a sealing film 13 is provided on the arc plate 3. The sealing film 13 is a rubber film, which is adhered and fixed on the arc plate 3 and is in a tight state, and covers the notch at the output end of the through groove 2. The tail end of the puncture needle 6 is connected to a connector seat 14;

[0042] When the puncture needle 6 is in the prohibited state, the sealing block 12 is in close contact with the outer side of the puncture needle 6, and the sealing film 13 can be used to seal the tip of the puncture needle 6 in the closed section of the through groove 2, and the tail end of the puncture needle 6 is sealed by the connector seat 14, so that the device is not easily contaminated by the outside world before use. When the puncture needle 6 extends and pierces the sealing film 13, the sealing film 13 will move quickly toward the two ends of the arc plate 3 under the action of elastic force, and will not enter the hole at the tip of the puncture needle 6, so as not to enter the human tissue together with the puncture needle 6;

[0043] At the same time, the frictional resistance generated by the sealing block 12 on the puncture needle 6 can also fix the puncture needle 6 so that after the puncture needle 6 penetrates into the human tissue and the operator releases the plate body 4, it is not easy to move.

[0044] like Figure 1 and Figure 5 As shown, in some embodiments, there are two plates 4, which are respectively hinged on the opposite sides of the shell 1, and the two plates 4 are respectively located on the opposite sides of the shell 1. The sleeve 7 is respectively connected to the two plates 4 through two transmission mechanisms 8, that is, the two plates 4 are respectively connected to the racks 802 on both sides of the sleeve 7 through the first gear 801, the second gear 804, and the third gear 805, so that the angle between the two plates 4 and the shell 1 is straight, and the rotation is synchronous. It can be seen from the above that in addition to the resistance of the puncture needle 6 to penetrate the human tissue, it is also necessary to overcome the friction resistance of the sealing block 12. By adopting the above design, the movement resistance of the puncture needle 6 can be distributed to the two plates 4, so that the operator can push the two plates 4 toward the shell 1 at the same time. There are two limit blocks 9, which are connected by a connecting plate 1101, so that the two limit blocks 9 can move synchronously and limit the movement of the two plates 4.

[0045] like Figure 1 , Figure 2 and Figure 5 As shown, in some embodiments, the other sides of the two limit blocks 9 are connected by a strip plate 15 and are close to the scale 10. On the one hand, the strip plate 15 can cooperate with the connecting plate 1101 and the two limit blocks 9 to form a frame structure, and can also slide with the outer side of the shell 1 without other mounting structures. On the other hand, the strip plate 15 can act as a pointer, which is convenient for the operator to move the limit block 9 to preset the puncture stroke.

[0046] likeFigure 6 and Figure 8 As shown in Figure 8 , in some embodiments, strip-shaped blocks 16 are formed on the inner walls of the through groove 2. The strip-shaped blocks 16 are parallel to the axis of the through groove 2. The sleeve body 7 is slidably engaged with the strip-shaped blocks 16. Limiting plates 17 are connected to the ends of the strip-shaped blocks 16. The ends of the strip-shaped blocks 16 are close to the end of the housing 1. By adopting the design of the limiting plates 17, the sliding distance of the sleeve body 7 can be restricted. On the one hand, the movement of the puncture needle can be restricted, so that the puncture needle 6 will not protrude from the end of the housing 1. On the other hand, since the sleeve is driven by the rack 802, the first gear 801 and the second gear 804, by restricting the sliding distance of the sleeve, the maximum opening angle of the plate body 4 can be constrained, which is convenient for grasping and also convenient for driving the plate body 4 to rotate along the hinge axis with one hand.

[0047] As Figure 2 and Figure 3 As shown in Figure 3 , in some embodiments, a disinfection member 18 is provided in the through groove 2 for disinfecting the puncture needle 6 passing through the sealing block 12. When the puncture needle 6 pierces into human tissue, the tail end of the puncture needle 6 in contact with the outside in the exposed section of the through groove 2 will pass through the sealing block 12. The disinfection member 18 can disinfect and sterilize this part, making it not easy to cause infection to the patient's wound.

[0048] As Figure 2 and Figure 3 As shown in Figure 3 , in some embodiments, the disinfection member 18 includes an installation cavity 1801 formed in the sealing block 12, in which a cotton block 1802 is provided. The sealing block 12 is made by a casting process and can wrap the cotton block 1802 inside. The cotton block 1802 is sterile dehydrated cotton. The tip of the puncture needle 6 penetrates through the cotton block 1802. A cylinder 1803 is formed on the outside of the sealing block 12. The cylinder 1803 is located outside the installation cavity 1801 and penetrates through the housing 1. Before use, a syringe can be inserted into the installation cavity 1801 from the cylinder 1803, and iodophor can be injected into the cotton block 1802. Thus, when the puncture needle 6 moves, the passing puncture needle 6 can be disinfected by the cotton block 1802 and the iodophor.

[0049] As Figure 2 and Figure 5 As shown in Figure 5 , in some embodiments, a through ring 19 is provided between the sealing block 12 and the sealing film 13. The through ring 19 is connected to the notch at the output end of the through groove 2 and is slidably engaged with the puncture needle 6. The through ring 19 can guide the movement of the puncture needle 6, thereby effectively avoiding the phenomenon of needle body deflection common in manual operations.

[0050] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A puncture device for treating kidney diseases, characterized in that include: A shell (1), wherein a through slot (2) is formed on the shell (1), and an arc-shaped plate (3) is connected to the end of the shell (1); A plate body (4) is hinged to the opposite side of the housing (1), and a gripping block (5) is connected to the plate body (4); The puncture needle (6) is connected to a sleeve (7) on the outside and is slidably matched with the through groove (2) through the sleeve (7); the hinged end of the plate body (4) is linked with the sleeve (7) through a transmission mechanism (8); A limit block (9) is slidably mounted on the housing (1) and is in contact with and overlapped with a side of the plate (4) facing the housing (1); a scale (10) is constructed on the outside of the housing (1) for displaying a sliding distance of the limit block (9); The fixing portion (11) is arranged on the limiting block (9) and is used for fixing the limiting block (9).

2. The puncture device for treating kidney diseases according to claim 1, wherein The fixing portion (11) comprises a connecting plate (1101) and is connected to one side of the limiting block (9); a receiving groove (1102) is provided on one side of the connecting plate (1101); a column (1103) is constructed on the other side of the connecting plate; a stopper (1104) is provided in the receiving groove (1102); a screw rod (1105) is connected to the stopper (1104), the screw thread passes through the column (1103), and a rotating handle (1106) is connected to the stopper; the outer side of the shell (1) is frosted, and the stopper (1104) is in contact with and overlaps the shell (1).

3. The puncture device for treating kidney diseases according to claim 2, wherein, The transmission mechanism (8) comprises a first gear (801) mounted on the hinge shafts on both sides of the plate body (4); two racks (802) are matched and connected to the sleeve body (7); a rotating rod (803) is rotatably mounted on the through groove (2) relative to the inner wall, and a second gear (804) and a third gear (805) are coaxially connected thereto and mesh with the first gear (801) and the rack (802) respectively.

4. The puncture device for treating kidney diseases according to claim 3, wherein The through groove (2) is sealed with a sealing block (12) and is away from the arc plate (3). The tip of the puncture needle (6) slides through the sealing block (12). The arc plate (3) is provided with a sealing film (13) and covers the notch at the output end of the through groove (2). The tail end of the puncture needle (6) is connected to a connector seat (14).

5. The puncture device for treating kidney diseases according to claim 4, wherein, The plate bodies (4) are two in number and are respectively hinged on opposite sides of the shell (1); the sleeve (7) is respectively connected to the two plate bodies (4) via two transmission mechanisms (8); the limit blocks (9) are two in number and are connected via a connecting plate (1101).

6. The puncture device for treating kidney diseases according to claim 5, characterized in that, The other sides of the two limit blocks (9) are connected via a strip plate (15) and are close to the scale (10).

7. The puncture device for treating kidney diseases according to claim 6, wherein, The through groove (2) is provided with a strip block (16) relative to the inner wall, the sleeve (7) and the strip block (16) are slidably matched, and the ends of the strip block (16) are connected to a limiting plate (17).

8. The puncture device for treating kidney diseases according to claim 7, characterized in that, A disinfection component (18) is provided in the through groove (2) for disinfecting the puncture needle (6) passing through the sealing block (12).

9. The puncture device for treating kidney diseases according to claim 8, wherein, The disinfection component (18) includes an installation cavity (1801) constructed within the sealing block (12), in which a cotton block (1802) is provided, and the tip of the puncture needle (6) penetrates through the cotton block (1802). A cylinder (1803) is constructed on the outer side of the sealing block (12) and penetrates through the housing (1).

10. The puncture device for treating kidney diseases according to claim 9, wherein A through-ring (19) is provided between the sealing block (12) and the sealing film (13), and is slidably engaged with the puncture needle (6).

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