Needle knife and culture dish applied to extraction of wounded part tissue in treatment process

Abstract

The invention relates to the field of medical instruments, in particular to a needle knife and culture dish applied to extraction of wounded part tissue in the treatment process, the needle knife and culture dish comprises a charging wire, the bottom of the charging wire is connected with a fixing barrel, the fixing barrel is of a hollow barrel-shaped structure with an opening in the bottom end, and an inner cavity of the fixing barrel is slidably connected with a protection barrel; one end of the protective cylinder penetrates through an opening in the bottom end of the fixed cylinder and extends to the position below the fixed cylinder, the protective cylinder is of a hollow cylindrical structure with an opening in the bottom end, a needle knife is arranged in an inner cavity of the protective cylinder, a culture dish assembly is arranged at the end, away from the charging wire, of the protective cylinder, and the culture dish assembly is used for storing tissue samples. The knife handle can be pushed downwards or pulled upwards through the electric push rod, so that the needle knife fixed at the bottom end of the knife handle can probe downwards or contract upwards, the height of the needle knife is adjusted, the needle knife is protected, and meanwhile, the needle knife is prevented from injuring a patient accidentally.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, in particular to a needle knife and a culture dish used for extracting affected tissue during treatment. Background Art

[0002] Acupotomy, a minimally invasive surgical tool, is widely used in soft tissue release, pain management, and tissue sampling. However, existing acupotomy devices are limited in functionality, unable to directly collect and preserve tissue samples during surgery and lack the ability to culture samples immediately. Furthermore, traditional acupotomy devices can easily contaminate or damage samples during operation, compromising subsequent pathological analysis or cell culture results. Therefore, there is an urgent need for acupotomy devices with integrated culture capabilities to improve surgical efficiency and sample quality. Summary of the Invention

[0003] The purpose of the present invention is to provide a needle knife and a culture dish for extracting affected tissue during treatment, which can directly collect tissue samples during surgery and realize immediate culture while reducing sample contamination and damage.

[0004] The technical solution adopted by the present invention to solve its technical problems is a needle knife and a culture dish for extracting affected tissue during treatment, including a charging cable, a fixed cylinder detachably connected to the bottom of the charging cable, the fixed cylinder is a hollow cylindrical structure with an opening at the bottom end, a protective cylinder is slidably connected to the inner cavity of the fixed cylinder, one end of the protective cylinder passes through the opening at the bottom end of the fixed cylinder and extends to the bottom of the fixed cylinder, the protective cylinder is a hollow cylindrical structure with an opening at the bottom end, a needle knife is provided in the inner cavity of the protective cylinder, a control module is provided at the lower end of the circumferential outer wall of the fixed cylinder, and a culture dish assembly is provided at the end of the protective cylinder away from the charging cable, and the culture dish assembly is used to store tissue samples to support cell culture or sample preservation.

[0005] Preferably, the inner cavity of the protective tube is slidably connected to a knife handle, the bottom end of the knife handle is fixedly connected to a needle knife, and a slot is provided at the bottom end of the protective tube.

[0006] Preferably, an electric push rod is fixedly connected to the top of the inner cavity of the fixed cylinder, the output end of the electric push rod slides through the protective cylinder and extends into the interior of the protective cylinder, and the end of the electric push rod output end is fixedly connected to the tool handle.

[0007] Preferably, the protective tube is symmetrically fixedly connected to the outer wall of the circumference with a shift rod, and the inner wall of the fixed tube corresponding to the two shift rods is provided with a guide groove that passes through the inside and outside, and one end of the two shift rods passes through the guide groove on the corresponding side and extends to the outside of the fixed tube, and the two shift rods are respectively slidably connected to the guide groove on the corresponding side, and a spring is fixed in the two guide grooves, and the upper and lower ends of the spring are respectively connected and fixed to the shift rod on the corresponding side and the inner wall of the fixed tube.

[0008] Preferably, the culture dish assembly includes a culture box, which is a hollow cylindrical structure with an opening at the bottom end. Rods are symmetrically fixedly connected to both sides of the upper surface of the culture box, and the rods are movably plugged into the slots at the bottom end of the protective tube. A first sealing plug is movably plugged into the bottom end of the culture box, and the first sealing plug is made of flexible rubber material. An upper cover is fixedly connected to the upper end of the culture box.

[0009] Preferably, a slide groove adapted to the needle knife is opened in the middle of the upper cover, and the needle knife slides through the slide groove and extends into the interior of the culture box. Elastic plastic sheets are fixedly connected to both sides of the slide groove.

[0010] Preferably, a liquid injection port is provided through one side of the upper surface of the upper cover, and the liquid injection port is sealed by a second sealing plug.

[0011] Preferably, one side edge of the elastic plastic sheet is provided with a chamfer adapted to the needle knife.

[0012] Beneficial effects of the present invention: In the present invention, the knife handle can be pushed downward or pulled upward by the electric push rod, so that the needle knife fixed at the bottom end of the knife handle can be lowered or retracted, the height of the needle knife is adjusted, the needle knife is protected, and the patient is prevented from being accidentally injured by the needle knife.

[0013] In the present invention, through the setting of the culture dish assembly, when sampling patient tissue, first remove the first sealing plug, then use the electric push rod to drive the knife handle and the needle knife to probe down to the outside of the protective tube until it reaches a suitable length, and then cut the patient tissue. After the needle knife cuts the patient tissue, the patient tissue adheres to the surface of the needle knife, and the electric push rod drives the knife handle and the needle knife to retract to the inside of the protective tube, and the first sealing plug is plugged into the bottom end of the culture box again. Then, hold the culture box and remove the culture box from the bottom of the protective tube. During this process, the needle knife is separated from the slide groove, and the sample remains in the culture box, which releases the limit of the elastic plastic sheet. The two elastic plastic sheets approach each other under the action of their own elastic force to achieve sealing of the upper cover, and the second sealing plug is removed. Culture medium is added to the inside of the culture box through the liquid injection port to culture the patient tissue, thereby realizing the integrated operation of tissue sampling and immediate culture. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and examples.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial structural diagram of the present invention; Figure 3 For the present invention Figure 2 A in the middle is an enlarged structural diagram; Figure 4 This is a schematic diagram of the cross-sectional structure of the fixed cylinder of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram at B in the middle; Figure 6 This is a schematic structural diagram of the culture dish assembly of the present invention; Figure 7 Schematic diagram of the cross-sectional structure of the culture dish assembly of the present invention.

[0016] In the picture: 1. Charging cable; 2. Fixing tube; 3. Protective tube; 4. Needle knife; 5. Culture dish assembly; 51. Culture box; 52. Insert rod; 53. First sealing plug; 54. Upper cover; 541. Slide groove; 5411. Elastic plastic sheet; 5412. Chamfer; 545. Liquid filling port; 6. Knife handle; 7. Slot; 8. Electric push rod; 9. Push rod; 10. Guide groove; 11. Spring. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the following is a summary of the present invention. The present invention is further described with reference to specific embodiments.

[0018] Example 1:

[0019] like Figures 1 to 7 As shown, a preferred embodiment of the present invention proposes an acupuncture knife and a culture dish for extracting affected tissue during treatment, comprising a charging cable 1, a fixed cylinder 2 detachably connected to the bottom of the charging cable 1, the fixed cylinder 2 being a hollow cylindrical structure with an opening at the bottom end, a protective cylinder 3 being slidably connected to the inner cavity of the fixed cylinder 2, one end of the protective cylinder 3 passing through the opening at the bottom end of the fixed cylinder 2 and extending to the bottom of the fixed cylinder 2, the protective cylinder 3 being a hollow cylindrical structure with an opening at the bottom end, a needle knife 4 being provided in the inner cavity of the protective cylinder 3, a control module 12 being provided at the lower end of the circumferential outer wall of the fixed cylinder 2, a culture dish assembly 5 being provided at the end of the protective cylinder 3 away from the charging cable 1, and the culture dish assembly 5 being used to store tissue samples to support cell culture or sample preservation.

[0020] Specifically, the inner cavity of the protection tube 3 is slidably connected to the knife handle 6, the bottom end of the knife handle 6 is fixedly connected to the needle knife 4, and the bottom end of the protection tube 3 is provided with a slot 7.

[0021] Specifically, an electric push rod 8 is fixedly connected to the top of the inner cavity of the fixed tube 2, and the output end of the electric push rod 8 slides through the protective tube 3 and extends to the inside of the protective tube 3. The output end of the electric push rod 8 is fixedly connected to the knife handle 6. In this embodiment, the knife handle 6 can be pushed downward or pulled upward by the electric push rod 8, so that the needle knife 4 fixed at the bottom end of the knife handle 6 can be lowered or retracted, and the height of the needle knife 4 can be adjusted to protect the needle knife, while also preventing the needle knife 4 from accidentally injuring the patient.

[0022] Specifically, the outer wall of the protective cylinder 3 is symmetrically fixed with a lever 9, and the inner wall of the fixed cylinder 2 corresponding to the two levers 9 is provided with a guide groove 10 that passes through the inside and outside. One end of the two levers 9 passes through the guide groove 10 on the corresponding side and extends to the outside of the fixed cylinder 2, and the two levers 9 are respectively slidably connected to the guide groove 10 on the corresponding side. A spring 11 is fixed in the two guide grooves 10, and the upper and lower ends of the spring 11 are respectively connected and fixed to the lever 9 on the corresponding side and the inner wall of the fixed cylinder 2. In this embodiment, the needle knife 4 is used to cut the patient's tissue and attach it to the surface of the needle knife 4, and an incision is formed on the tissue at the same time. The two levers 9 can be used to push the protective cylinder 3 downward so that the bottom of the protective cylinder 3 can be extended into the incision. At this time, the needle knife 4 and the patient's tissue attached to its surface are wrapped by the protective cylinder 3, avoiding excessive contact of the patient's tissue with the outside air and reducing sample contamination.

[0023] In this embodiment, the electric push rod 8 can push the handle 6 downward or pull it upward, so that the needle knife 4 fixed at the bottom end of the handle 6 can be lowered or retracted, adjusting the height of the needle knife 4, protecting the needle knife, and preventing the needle knife 4 from accidentally injuring the patient.

[0024] Example 2:

[0025] like Figures 1 to 7 As shown, on the basis of Example 1, the culture dish assembly 5 includes a culture box 51, which is a hollow cylindrical structure with an opening at the bottom end. Rods 52 are symmetrically fixedly connected to both sides of the upper surface of the culture box 51. The rods 52 are movably connected to the slots 7 at the bottom end of the protective tube 3. A first sealing plug 53 is movably connected to the bottom end of the culture box 51. The first sealing plug 53 is made of flexible rubber material. An upper cover 54 is fixedly connected to the upper end of the culture box 51.

[0026] Specifically, a slide groove 541 adapted to the needle knife 4 is opened in the middle of the upper cover 54, and the needle knife 4 slides through the slide groove 541 and extends to the inside of the culture box 51. Elastic plastic sheets 5411 are fixedly connected on both sides of the slide groove 541. In this embodiment, when sampling the patient's tissue, the first sealing plug 53 is first removed, and then the electric push rod 8 drives the knife handle 6 and the needle knife 4 to the outside of the protective tube 3 until they reach a suitable length, and the patient's tissue can be cut. When the needle knife 4 cuts the patient's tissue Finally, the patient's tissue adheres to the surface of the needle knife 4, and the electric push rod 8 drives the knife handle 6 and the needle knife 4 to retract into the protective tube 3, and the first sealing plug 53 is plugged into the bottom end of the culture box 51 again. Then, the culture box 51 is held and the culture box 51 is removed from the bottom of the protective tube 3. During this process, the needle knife 4 is separated from the slide groove 541, and the sample remains in the culture box 51, which releases the limit of the elastic plastic sheet 5411. The two elastic plastic sheets 5411 are reset under the action of their own elastic force to achieve sealing of the upper cover 54.

[0027] Specifically, a liquid injection port 545 is opened on one side of the upper surface of the upper cover 54, and the liquid injection port 545 is sealed by a second sealing plug. In this embodiment, when it is necessary to culture the patient's tissue, the second sealing plug is first removed, and the culture medium can be added to the inside of the culture box 51 through the liquid injection port.

[0028] Specifically, a chamfer 5412 adapted to the needle knife 4 is provided on one edge of the elastic plastic sheet 5411 . In this embodiment, the chamfer 5412 facilitates the needle knife 4 to be inserted into the culture box 51 again.

[0029] Working principle: When sampling patient tissue, first remove the first sealing plug 53, then use the electric push rod 8 to drive the knife handle 6 and the needle knife 4 to probe down to the outside of the protective tube 3 until they reach the appropriate length, and then the patient tissue can be cut. After the needle knife 4 cuts the patient tissue, the patient tissue adheres to the surface of the needle knife 4, and the electric push rod 8 drives the knife handle 6 and the needle knife 4 to retract into the inside of the protective tube 3, and the first sealing plug 53 is plugged into the bottom end of the culture box 51 again. Then, hold the culture box 51 and remove the culture box 51 from the bottom of the protective tube 3. During this process, the needle knife 4 is separated from the slide groove 541, and the sample remains in the culture box 51, that is, the limit on the elastic plastic sheet 5411 is released, and the two elastic plastic sheets 5411 are reset under the action of their own elastic force to achieve sealing of the upper cover 54, remove the second sealing plug, and add culture medium into the culture box 51 through the liquid injection port to culture the patient tissue, realizing the integrated operation of tissue sampling and immediate culture.

[0030] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of protection claimed by the present invention. The scope of protection claimed by the present invention is defined by the equivalents of the appended claims.

Claims

1. A needle knife for extracting tissue from an affected area during treatment, characterized by: including a charging cable (1); A fixed cylinder (2), the bottom of the charging cable (1) is detachably connected to the fixed cylinder (2), and the fixed cylinder (2) is a hollow cylindrical structure with an opening at the bottom end; A protective tube (3) is slidably connected to the inner cavity of the fixed tube (2), one end of the protective tube (3) passes through the opening at the bottom end of the fixed tube (2) and extends to the bottom of the fixed tube (2), and the protective tube (3) is a hollow cylindrical structure with an opening at the bottom end; A needle knife (4), wherein the inner cavity of the protective tube (3) is provided with a needle knife (4); A control module (12), wherein the lower end of the circumferential outer wall of the fixed cylinder (2) is provided with a control module (12); A culture dish assembly (5) is provided at one end of the protective tube (3) away from the charging cable (1), and the culture dish assembly (5) is used to store tissue samples to support cell culture or sample preservation.

2. The needle knife for extracting tissue from an affected area during treatment according to claim 1, characterized in that: The inner cavity of the protective tube (3) is slidably connected to a knife handle (6), the bottom end of the knife handle (6) is fixedly connected to a needle knife (4), and a slot (7) is provided at the bottom end of the protective tube (3).

3. The needle knife for extracting tissue from an affected area during treatment according to claim 2, characterized in that: An electric push rod (8) is fixedly connected to the top end of the inner cavity of the fixed tube (2); the output end of the electric push rod (8) slides through the protective tube (3) and extends into the interior of the protective tube (3); and the output end of the electric push rod (8) is fixedly connected to the shank (6).

4. The needle knife for extracting tissue from an affected area during treatment according to claim 3, characterized in that: The outer circumferential wall of the protection tube (3) is symmetrically fixedly connected with a shift rod (9); the inner wall of the fixed tube (2) is provided with a guide groove (10) that passes through the inner and outer sides of the two shift rods (9); one end of each of the two shift rods (9) passes through the guide groove (10) on the corresponding side and extends to the outside of the fixed tube (2); and the two shift rods (9) are respectively slidably connected to the guide groove (10) on the corresponding side; a spring (11) is fixed in each of the two guide grooves (10); the upper and lower ends of the spring (11) are respectively connected and fixed to the shift rod (9) on the corresponding side and the inner wall of the fixed tube (2).

5. The needle knife for extracting tissue from an affected area during treatment according to claim 4, characterized in that: The culture dish assembly (5) comprises a culture box (51), which is a hollow cylindrical structure with an opening at the bottom end. Rods (52) are symmetrically fixedly connected to the upper surface of the culture box (51) on both sides. The rods (52) are movably plugged into the slots (7) at the bottom end of the protective tube (3). A first sealing plug (53) is movably plugged into the bottom end of the culture box (51), and the first sealing plug (53) is made of flexible rubber material. The upper end of the culture box (51) is fixedly connected to an upper cover (54).

6. The needle knife for extracting tissue from an affected area during treatment according to claim 5, characterized in that: A slide groove (541) adapted to the needle knife (4) is provided in the middle of the upper cover (54); the needle knife (4) slides through the slide groove (541) and extends into the interior of the culture box (51); elastic plastic sheets (5411) are fixedly connected to both sides of the slide groove (541).

7. The needle knife for extracting tissue from an affected area during treatment according to claim 5, characterized in that: A liquid injection port (545) is provided through one side of the upper surface of the upper cover (54), and the liquid injection port (545) is sealed by a second sealing plug.

8. The needle knife for extracting tissue from an affected area during treatment according to claim 6, characterized in that: A chamfer (5412) adapted to the needle knife (4) is provided on one side edge of the elastic plastic sheet (5411).

9. A culture dish suitable for the acupotomy device for extracting tissue from an affected area during treatment as claimed in any one of claims 1 to 8, characterized in that: The culture dish is used in conjunction with the needle knife.

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