Cardiovascular lesion tissue biopsy sampling device

Abstract

The invention discloses a cardiovascular lesion tissue biopsy sampling device, and relates to the technical field of biopsy sampling, the cardiovascular lesion tissue biopsy sampling device comprises a cannula, a cannula body is fixed in the cannula, and the cannula and the cannula body are provided with gaps; the piston plate is arranged in the pipe body in a sliding mode, and a plurality of round holes are formed in the side wall of the piston plate; the sealing assembly is in sliding connection with the piston plate, and the sealing assembly is used for sealing the circular hole; and the supporting assembly is fixed in the pipe body, and the supporting assembly is connected with the piston plate. By means of movement of the piston plate and cooperation with work of the sealing assembly, negative pressure can be generated at the notch so that diseased tissue can enter the tube body through the notch, normal saline can be injected into the middle end of the tube body through the supporting assembly and the transmission assembly, the cut diseased tissue can be output out of the tube body, and therefore the diseased tissue can be conveniently cut. And the next sampling work can be carried out.

Description

Technical Field

[0001] The present invention relates to the technical field of biopsy sampling, and more particularly to a biopsy sampling device for cardiovascular lesion tissues. Background Art

[0002] Biopsy is an important means to obtain lesion tissues for pathological examination, aiming to determine the nature of the lesion. Among them, when it comes to cardiovascular lesion tissues, a biopsy sampling device for cardiovascular lesion tissues is required.

[0003] In the prior art, most biopsy sampling devices use minimally invasive surgeries such as punctures to move to the lesion location, and then cut the lesion tissues for sampling. However, most sampling devices can only perform one sampling. Therefore, the sampling location has a great influence on the detection results. If a single sample does not meet the standards, a sampling operation needs to be performed again. Summary of the Invention

[0004] The purpose of the present invention is to provide a biopsy sampling device for cardiovascular lesion tissues to solve the technical problems in the prior art.

[0005] The present invention provides a biopsy sampling device for cardiovascular lesion tissues, including:

[0006] A sleeve, a tube body is fixed inside the sleeve, and notches are provided on both the sleeve and the tube body;

[0007] A piston plate, the piston plate is slidably arranged inside the tube body, and a plurality of round holes are provided on the side wall of the piston plate;

[0008] A sealing assembly, the sealing assembly is slidably connected to the piston plate, and the sealing assembly is used to seal the round holes;

[0009] A support assembly, the support assembly is fixed inside the tube body, and the support assembly is connected to the piston plate;

[0010] A transmission assembly, the transmission assembly is fixed to the sleeve, and the transmission assembly is used to adjust the position of the piston plate;

[0011] A cutting assembly, the cutting assembly is fixed inside the tube body.

[0012] Preferably, the sealing assembly includes:

[0013] A connecting rod, the connecting rod is slidably inserted on the piston plate;

[0014] A sealing plate, the sealing plate is fixed to the end of the connecting rod, and the sealing plate is used to seal the round holes;

[0015] A connecting plate, the connecting plate is fixed to the connecting rod;

[0016] A second spring, one end of the second spring is fixed to the connecting plate, and the other end of the second spring is fixed to the piston plate.

[0017] Preferably, the support assembly includes:

[0018] A fixing plate, the fixing plate is fixed inside the tube body;

[0019] A rod body, the rod body is fixed on the fixing plate;

[0020] A first spring, one end of the first spring is fixed to the fixing plate, and the other end of the first spring is fixed to the piston plate.

[0021] Preferably, the transmission assembly includes:

[0022] An annular cavity, the annular cavity is formed in the sleeve;

[0023] A plurality of through holes, the plurality of through holes are formed in both the sleeve and the tube body, the through holes penetrate the inner wall of the tube body, and the through holes penetrate the inner wall of the annular cavity;

[0024] A plurality of connection holes, the plurality of connection holes are formed in the sleeve, and each connection hole communicates with the annular cavity.

[0025] Preferably, further included are:

[0026] A second annular seat, the second annular seat is fixed to the sleeve, and the second annular seat communicates with the plurality of connection holes;

[0027] Two second connecting pipes, both of the two second connecting pipes communicate with the second annular seat.

[0028] Preferably, the cutting assembly includes:

[0029] An annular cutter, the annular cutter is slidably disposed inside the tube body;

[0030] An annular tube, the annular tube is fixed inside the tube body;

[0031] An annular piston, the annular piston is slidably disposed inside the annular tube;

[0032] A plurality of transmission rods, the plurality of transmission rods are all fixed to the annular piston, and each transmission rod penetrates the end of the annular tube, and the transmission rod is fixed to the annular cutter.

[0033] Preferably, further included are:

[0034] A first annular seat, the first annular seat is fixed to the end of the annular tube, and the first annular seat communicates with the annular tube;

[0035] A first connecting pipe, the first connecting pipe communicates with the first annular seat.

[0036] Preferably, it further includes:

[0037] A plurality of fixing rods, and a plurality of the fixing rods are all fixed to the tube body;

[0038] A fixing ring, and the fixing ring is fixed to the plurality of fixing rods.

[0039] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0040] Through the movement of the piston plate and the cooperation of the sealing assembly, a negative pressure is generated at the notch, so that the diseased tissue can enter the tube body through the notch. Through the support assembly and the transmission assembly, normal saline can be injected into the end part of the tube body to output the cut diseased tissue from the tube body, and then the next sampling work can be carried out. Description of the Drawings

[0041] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0042] Figure 1 is a schematic three-dimensional structure diagram of the present invention;

[0043] Figure 2 is the Figure 1 partial enlarged structure diagram at A in the present invention;

[0044] Figure 3 is a schematic cross-sectional structure diagram of the sleeve and the tube body of the present invention;

[0045] Figure 4 is the Figure 3 partial enlarged structure diagram at B in the present invention;

[0046] Figure 5 is a schematic structure diagram of the piston plate and the round hole of the present invention;

[0047] Figure 6 is a schematic cross-sectional structure diagram of the annular tube of the present invention.

[0048] Reference Signs:

[0049] 1. Sleeve; 2. Pipe body; 3. Fixed rod; 4. Fixed ring; 5. First annular seat; 6. First connecting pipe; 7. Second annular seat; 8. Second connecting pipe; 9. Rod body; 10. Fixed plate; 11. Notch; 12. Annular cutter; 13. Annular pipe; 14. First spring; 15. Connecting hole; 16. Annular cavity; 17. Through hole; 18. Sealing plate; 19. Connecting plate; 20. Connecting rod; 21. Second spring; 22. Piston plate; 23. Round hole; 24. Annular piston; 25. Transmission rod. Detailed implementation mode

[0050] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0051] Generally, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention.

[0052] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0053] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0054] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0055] As shown below in Figures 1 to 6 The embodiments of the present invention provide a biopsy sampling device for cardiovascular lesion tissues, including:

[0056] The sleeve 1 has a tube body 2 fixed therein. Notches 11 are provided on both the sleeve 1 and the tube body 2.

[0057] The piston plate 22 is slidably arranged in the tube body 2, and a plurality of round holes 23 are provided on the side wall of the piston plate 22.

[0058] The sealing assembly is slidably connected to the piston plate 22 and is used to seal the round holes 23.

[0059] The support assembly is fixed in the tube body 2 and is connected to the piston plate 22.

[0060] The transmission assembly is fixed to the sleeve 1 and is used to adjust the position of the piston plate 22.

[0061] The cutting assembly is fixed in the tube body 2.

[0062] By the movement of the piston plate 22 and the cooperation of the sealing assembly, negative pressure is generated at the notch 11, so that the diseased tissue can enter the tube body 2 through the notch 11.

[0063] Through the support assembly and the transmission assembly, normal saline can be injected into the middle end of the tube body 2, so as to output the cut diseased tissue from the tube body 2, and the next sampling work can be carried out.

[0064] Furthermore, the sealing assembly includes:

[0065] The connecting rod 20 is slidably inserted on the piston plate 22.

[0066] The sealing plate 18 is fixed to the end of the connecting rod 20 and is used to seal the round holes 23.

[0067] The connecting plate 19 is fixed to the connecting rod 20.

[0068] The second spring 21 has one end fixed to the connecting plate 19 and the other end fixed to the piston plate 22.

[0069] Furthermore, the support assembly includes:

[0070] The fixing plate 10 is fixed in the tube body 2.

[0071] The rod body 9 is fixed to the fixing plate 10.

[0072] The first spring 14 has one end fixed to the fixing plate 10 and the other end fixed to the piston plate 22.

[0073] After the connecting plate 19 on the piston plate 22 abuts against the rod body 9, the connecting plate 19 moves under the support of the fixing plate 10, and then drives the sealing plate 18 to move through the connecting rod 20, so that both sides of the piston plate 22 can communicate through the round holes 23.

[0074] Furthermore, the transmission assembly includes:

[0075] The annular cavity 16 is opened in the sleeve 1;

[0076] A plurality of through holes 17 are all opened on the sleeve 1 and the pipe body 2. The through holes 17 penetrate the inner wall of the pipe body 2 and the inner wall of the annular cavity 16;

[0077] A plurality of connecting holes 15 are all opened in the sleeve 1, and each connecting hole 15 communicates with the annular cavity 16.

[0078] Furthermore, it further includes:

[0079] The second annular seat 7 is fixed to the sleeve 1 and communicates with the plurality of connecting holes 15;

[0080] Two second connecting pipes 8 both communicate with the second annular seat 7.

[0081] Connect one of the second connecting pipes 8 to the negative pressure device and turn on the switch of the negative pressure device. When the negative pressure device works, the gas in the second annular seat 7 is pumped out through the corresponding second connecting pipe 8, and then the air pressure on one side of the piston plate 22 in the pipe body 2 is reduced through the connecting hole 15, the annular cavity 16 and the through hole 17, so that the piston plate 22 moves;

[0082] Connect the other second connecting pipe 8 to the liquid pump and inject physiological saline into the second annular seat 7 through the liquid pump. The physiological saline is injected into the pipe body 2 through the corresponding second connecting pipe 8, the connecting hole 15, the annular cavity 16 and the through hole 17, and then passes through the round hole 23 to unseal the end of the pipe body 2. At this time, the physiological saline can push the cut tissue out of the end of the pipe body 2 and inject a certain amount of physiological saline into the pipe body 2 to realize the flushing inside the pipe body 2.

[0083] Furthermore, the cutting assembly includes:

[0084] The annular cutter 12 is slidably arranged in the pipe body 2;

[0085] The annular pipe 13 is fixed in the pipe body 2;

[0086] The annular piston 24 is slidably arranged in the annular pipe 13;

[0087] A plurality of transmission rods 25, all of the plurality of transmission rods 25 are fixed to the annular piston 24, and each transmission rod 25 penetrates through the end of the annular tube 13, and the transmission rod 25 is fixed to the annular cutter 12.

[0088] Furthermore, it further includes:

[0089] The first annular seat 5, the first annular seat 5 is fixed to the end of the annular tube 13, and the first annular seat 5 communicates with the annular tube 13;

[0090] The first connecting pipe 6, the first connecting pipe 6 communicates with the first annular seat 5.

[0091] Connect the gas supply device to the first connecting pipe 6, and turn on the switch of the gas supply device. When the gas supply device works, it injects gas into the first annular seat 5 through the first connecting pipe 6, and then into the annular tube 13, and pushes the annular piston 24 to move. During the movement of the annular piston 24, it drives the annular cutter 12 to move through the transmission rod 25, and then cuts the diseased tissue entering the tube body 2.

[0092] Furthermore, it further includes:

[0093] A plurality of fixing rods 3, all of the plurality of fixing rods 3 are fixed to the tube body 2;

[0094] The fixing ring 4, the fixing ring 4 is fixed to the plurality of fixing rods 3.

[0095] The specific working method is: after the device enters the appropriate position, connect one of the second connecting pipes 8 to the negative pressure device, and turn on the switch of the negative pressure device. When the negative pressure device works, it extracts the gas in the second annular seat 7 through the corresponding second connecting pipe 8, and then through the connecting hole 15, the annular cavity 16 and the through hole 17, the air pressure on one side of the piston plate 22 in the tube body 2 is reduced, so that the piston plate 22 moves and seals the end of the tube body 2;

[0096] During the movement of the piston plate 22, a negative pressure is generated at the notch 11, so that the diseased tissue can enter the tube body 2 through the notch 11;

[0097] Subsequently, connect the gas supply device to the first connecting pipe 6, and turn on the switch of the gas supply device. When the gas supply device works, it injects gas into the first annular seat 5 through the first connecting pipe 6, and then into the annular tube 13, and pushes the annular piston 24 to move. During the movement of the annular piston 24, it drives the annular cutter 12 to move through the transmission rod 25, and then cuts the diseased tissue entering the tube body 2. After cutting, the annular cutter 12 abuts against the piston plate 22 and pushes the piston plate 22 to continue moving;

[0098] After the connecting plate 19 on the piston plate 22 abuts against the rod body 9, the connecting plate 19 moves by the support of the fixing plate 10, and then drives the sealing plate 18 to move through the connecting rod 20, so that both sides of the piston plate 22 can communicate through the round holes 23;

[0099] Connect another second connecting pipe 8 to the liquid pump, and inject physiological saline into the second annular seat 7 through the liquid pump. The physiological saline is injected into the tube body 2 through the corresponding second connecting pipe 8, the connecting holes 15, the annular cavity 16 and the through holes 17, and then passes through the round holes 23 to unseal the end of the tube body 2. At this time, the physiological saline can push the cut tissue out from the end of the tube body 2, and inject a certain amount of physiological saline into the tube body 2 to realize the flushing inside the tube body 2;

[0100] Subsequently, adjust the position of the device again, and the sampling work can be carried out again at other diseased parts.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cardiovascular disease tissue biopsy sampling device, characterized in that: include: A sleeve (1), wherein a tube body (2) is fixed inside the sleeve (1), and both the sleeve (1) and the tube body (2) are provided with a notch (11); A piston plate (22), wherein the piston plate (22) is slidably disposed in the tube body (2), and a plurality of circular holes (23) are formed on a side wall of the piston plate (22); A sealing assembly, wherein the sealing assembly is slidably connected to the piston plate (22), and the sealing assembly is used to seal the circular hole (23); A support assembly, the support assembly is fixed in the tube body (2), and the support assembly is connected to the piston plate (22); A transmission assembly, the transmission assembly and the sleeve (1) are fixed, and the transmission assembly is used to adjust the position of the piston plate (22); A cutting assembly is fixed in the tube body (2).

2. A cardiovascular disease tissue biopsy sampling device according to claim 1, characterized in that: The sealing assembly comprises: A connecting rod (20), wherein the connecting rod (20) is slidably inserted on the piston plate (22); A sealing plate (18), wherein the sealing plate (18) is fixed to the end of the connecting rod (20), and the sealing plate (18) is used to seal the circular hole (23); A connecting plate (19), wherein the connecting plate (19) and the connecting rod (20) are fixed; A second spring (21), one end of the second spring (21) is fixed to the connecting plate (19), and the other end of the second spring (21) is fixed to the piston plate (22).

3. A cardiovascular disease tissue biopsy sampling device according to claim 2, characterized in that: The support assembly comprises: A fixing plate (10), wherein the fixing plate (10) is fixed inside the tube body (2); A rod body (9), wherein the rod body (9) is fixed on a fixing plate (10); A first spring (14), one end of the first spring (14) is fixed to the fixing plate (10), and the other end of the first spring (14) is fixed to the piston plate (22).

4. A cardiovascular disease tissue biopsy sampling device according to claim 3, characterized in that: The transmission assembly comprises: an annular cavity (16), wherein the annular cavity (16) is provided in the sleeve (1); A plurality of through holes (17), wherein the plurality of through holes (17) are all formed on the sleeve (1) and the tube body (2), the through holes (17) penetrate the inner wall of the tube body (2), and the through holes (17) penetrate the inner wall of the annular cavity (16); A plurality of connection holes (15), wherein the plurality of connection holes (15) are all provided in the sleeve (1), and each connection hole (15) is communicated with the annular cavity (16).

5. A cardiovascular disease tissue biopsy sampling device according to claim 4, characterized in that: Also includes: A second annular seat (7), wherein the second annular seat (7) and the sleeve (1) are fixed, and the second annular seat (7) and the plurality of connecting holes (15) are in communication; Two second connecting pipes (8), both of which are connected to the second annular seat (7).

6. A cardiovascular disease tissue biopsy sampling device according to claim 1, characterized in that: The cutting assembly comprises: an annular cutter (12), the annular cutter (12) being slidably disposed in the tube body (2); an annular tube (13), wherein the annular tube (13) is fixed inside the tube body (2); an annular piston (24), the annular piston (24) being slidably disposed in the annular tube (13); A plurality of transmission rods (25) are provided, and the plurality of transmission rods (25) are all fixed to the annular piston (24), and each transmission rod (25) passes through the end of the annular tube (13), and the transmission rod (25) is fixed to the annular cutter (12).

7. A cardiovascular disease tissue biopsy sampling device according to claim 6, characterized in that: Also includes: A first annular seat (5), the first annular seat (5) being fixed at the end of the annular tube (13), and the first annular seat (5) and the annular tube (13) being in communication; A first connecting pipe (6), wherein the first connecting pipe (6) is connected to the first annular seat (5).

8. A cardiovascular disease tissue biopsy sampling device according to claim 1, characterized in that: Also includes: A plurality of fixing rods (3), wherein the plurality of fixing rods (3) are all fixed to the tube body (2); A fixing ring (4) is fixed to a plurality of fixing rods (3).

Images