An intraoperative pathology tissue extraction device

Abstract

The application discloses a kind of intraoperative pathological tissue extraction equipment, it is related to medical equipment technical field, including extraction mechanism, the extraction mechanism includes main rod, the top of the main rod is fixedly connected with multiple extension plates with the main rod as axis center carries out circular array, the number of the extension plate is not less than three, the bottom of the extension plate is fixedly connected with cooperation cylinder.The pathological tissue can be extracted multiple times, avoid pathological material taking not ideal, the problem of re-taking, at the same time multiple extraction can be aimed at tissue performance malignant, carry out thorough "cleaning", to completely extract pathological tissue, not leave aftereffect, and can be clamped to tumor core, compared with at least three stress points in prior art tumor core, can improve the stability when clamping tumor core, and doctor can freely select through handheld operation extraction mechanism (more flexible), or through support frame cooperation changes the transverse and longitudinal distance of extraction mechanism (saves doctor physical strength), more autonomous.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an intraoperative pathological tissue extraction device. Background Technology

[0002] Pathological examination of tumors is one of the most important methods for tumor diagnosis. Pathological examination can determine the diagnosis, tissue origin, nature and extent of the tumor, providing an important basis for clinical treatment. The accuracy of pathological examination results and the control of surgical time are crucial to the patient's life and safety.

[0003] For example, a rapid intraoperative pathological tissue extraction device disclosed in CN112168228B includes a support base with a movable groove on its lower surface and a transmission cavity inside the support base located on one side of the movable groove. The above solution involves protruding an extraction tube matching the surgical length and tube diameter, inserting an installation block on the extraction tube into a second clamping groove, and then rotating a handle to drive a lead screw. The lead screw, in conjunction with a lead screw nut, moves the movable block and the first clamping block, causing the first clamping block to engage with another installation block through the first clamping groove. Simultaneously, the lead screw drives a rotating rod to rotate through a bevel gear transmission. The rotating rod, through a threaded groove and a threaded rod, drives a fixing rod to descend into a fixing hole to fix the installation block. This allows for the installation and fixing of different extraction devices according to requirements, thus meeting the diverse needs of different surgeries.

[0004] However, the applicant found that in practice, pathological tissue can only be extracted once, which easily leads to unsatisfactory pathological samples and the need to extract again. If multiple extractions are required, the pathological tissue needs to be removed first or the extraction tube needs to be changed, which is quite troublesome. At the same time, some tissues show malignancy, and a single extraction cannot completely extract the lesion tissue. In addition, in the existing technology, the tumor core is usually extracted by tumor core medical forceps, which means that the tumor core has only two stress points and a small stress area, making it easy for the tumor core to fall off during the extraction process. Summary of the Invention

[0005] The purpose of this application is to provide an intraoperative pathological tissue extraction device.

[0006] To achieve the above objectives, this application provides the following technical solution: an intraoperative pathological tissue extraction device, comprising an extraction mechanism, wherein the extraction mechanism includes a main rod, and a plurality of extension plates arranged in a circular array around the main rod are fixedly connected to the top end of the main rod, the number of extension plates being not less than three, and a matching cylinder is fixedly connected to the bottom of each extension plate, the matching cylinder being connected to an extraction cylinder by an inner ring thread, an extraction tube being fixedly sleeved at the bottom of the extraction cylinder, a piston being slidably sleeved inside the extraction tube, a detachable piston rod being provided on the piston, and a clamping plate being provided at the top end of the piston rod;

[0007] The main rod is equipped with a driving component that causes the clamping plate to rotate.

[0008] Preferably, a strong magnetic sheet is fixedly connected to the piston, a piston rod is slidably sleeved on the extension plate, a bottom rod is hinged to the bottom end of the piston rod, and an iron sheet that attracts the strong magnetic sheet is fixedly connected to the bottom end of the bottom rod.

[0009] Preferably, the main rod has an installation groove, and the driving component includes a second push rod motor disposed in the installation groove. The outer ring of the output shaft of the second push rod motor is hinged with a plurality of connecting rods. The free end of the connecting rod is hinged with a positioning tube sleeved on the outer ring of the piston rod. The positioning tube is provided with a positioning element that can engage with the piston rod.

[0010] Preferably, the extension plate has a reserved hole with an L-shaped cross-section that communicates with the main rod, and the connecting rod can pass through the reserved hole.

[0011] Preferably, the inner ring of the positioning tube has a plurality of inner grooves arranged in a circular array around the positioning tube as the axis. The positioning component includes a return spring fixedly connected in the inner groove. The free end of the return spring is provided with a locking block that slides in the inner groove. The free end of the locking block is hemispherical or arc-shaped. The piston rod has a positioning groove that matches the locking block.

[0012] Preferably, the diameter of the top end of the extraction cylinder is smaller than the diameter of the piston.

[0013] Preferably, the outer ring of the main rod is slidably sleeved with a sliding sleeve, and the outer ring of the sliding sleeve is fixedly connected with a plurality of connecting pieces, the free end of the connecting pieces being provided with a second sleeve that is rotatably sleeved on the outer ring of the extraction cylinder.

[0014] Preferably, a support member is fixedly connected to the extension plate by bolts. The support frame includes a telescopic rod arranged laterally. A connecting cylinder is rotatably connected to the outer ring of the free end of the telescopic rod. A first sleeve is fixedly connected to the free end of the connecting cylinder. An annular plate is slidably sleeved on the inner ring of the first sleeve. Three sets of lugs are fixedly connected to the inner side of the annular plate, with two lugs in each set. The extension plate is located between each set of lugs and is fixed by bolts.

[0015] Preferably, the support frame further includes a longitudinally arranged base plate, a support rod is fixedly connected to the top of the base plate, a top plate is fixedly connected to the top of the support rod, two symmetrically distributed first push rod motors are fixedly connected to the top of the top plate, a support plate is fixedly connected to the output end of the first push rod motors, and the telescopic rod is fixedly sleeved inside the support plate.

[0016] In summary, the technical effects and advantages of this invention are as follows:

[0017] This invention allows for multiple extractions of pathological tissue, avoiding the need for repeated sampling due to unsatisfactory results. Multiple extractions also enable thorough "cleaning" of tissues showing malignant tendencies, ensuring complete removal of diseased tissue and preventing future complications. Furthermore, it allows for the clamping of tumor cores, which, compared to existing technologies where the core is subjected to at least three stress points, improves stability during core clamping. Doctors can freely choose to operate the extraction mechanism by hand (for greater flexibility) or use a support frame to adjust the lateral and longitudinal distances of the extraction mechanism (saving doctor's energy), offering greater autonomy. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the intraoperative pathological tissue extraction equipment;

[0020] Figure 2 This is a schematic diagram of the support frame structure;

[0021] Figure 3 This is a schematic diagram of the extraction mechanism and other structures.

[0022] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the gripper structure;

[0024] Figure 6 This is a schematic diagram of a partial structure;

[0025] Figure 7 This is a schematic diagram of the cross-sectional structure of the positioning tube.

[0026] In the diagram: 1. Base plate; 2. Support rod; 3. Top plate; 4. First push rod motor; 5. Support plate; 6. Telescopic rod; 7. First sleeve; 8. Ring plate; 801. Lug; 9. Piston rod; 901. Clamping plate; 902. Positioning groove; 10. Positioning tube; 1001. Inner groove; 11. Connecting rod; 12. Main rod; 1201. Extension plate; 1202. Mounting groove; 1203. Reserved hole; 13. Sliding sleeve; 14. Connecting piece; 15. Second sleeve; 16. Extraction cylinder; 1601. Extraction tube; 17. Connecting cylinder; 18. Matching cylinder; 19. Second push rod motor; 20. Base rod; 2001. Iron piece; 21. Return spring; 22. Strong magnetic piece; 23. Piston; 24. Locking block. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example: Reference Figure 1-7 The illustrated intraoperative pathological tissue extraction device includes an extraction mechanism. The extraction mechanism includes a main rod 12. A plurality of extension plates 1201 arranged in a circular array around the main rod 12 are fixedly connected to the top of the main rod 12. The number of extension plates 1201 is not less than three; in this embodiment, there are three extension plates 1201. A matching cylinder 18 is fixedly connected to the bottom of each extension plate 1201. An extraction cylinder 16 is connected to the matching cylinder 18 via an inner thread. An extraction tube 1601 is fixedly sleeved at the bottom of the extraction cylinder 16. A piston 23 is slidably sleeved inside the extraction tube 1601. The piston 23 is rotated to extract the tissue. Extraction tube 16 separates from matching tube 18, thus completing the collection. In this embodiment, extraction can be performed three times to avoid the problem of re-extraction due to unsatisfactory pathological samples. At the same time, multiple extractions can be performed to thoroughly "clean up" tissues that show signs of malignancy, in order to completely extract diseased tissues and leave no future problems. A detachable piston rod 9 is provided on piston 23 to separate extraction tube 16 and matching tube 18. A clamping plate 901 is provided at the top of piston rod 9 to clamp the tumor core. Compared with the prior art, where the tumor core is subjected to at least three force points, the stability of clamping the tumor core can be improved.

[0029] In order for the clamping plate 901 to stably clamp the core, such as Figure 1 and Figure 3 As shown, the main rod 12 is equipped with a driving component that causes the clamping plate 901 to rotate.

[0030] like Figure 3 and Figure 4 As shown, a strong magnetic sheet 22 is fixedly connected to the piston 23, and a piston rod 9 is slidably sleeved on the extension plate 1201. A bottom rod 20 is hinged to the bottom end of the piston rod 9, and an iron sheet 2001 that attracts the strong magnetic sheet 22 is fixedly connected to the bottom end of the bottom rod 20.

[0031] The bottom rod 20 is connected to the piston 23 by the attraction between the strong magnetic sheet 22 and the iron sheet 2001.

[0032] like Figure 3 and Figure 5 As shown, the main rod 12 has an installation groove 1202. The driving component includes a second push rod motor 19 installed in the installation groove 1202. The output shaft of the second push rod motor 19 is hinged to a plurality of connecting rods 11. The free end of the connecting rod 11 is hinged to a positioning tube 10 sleeved on the outer ring of the piston rod 9. The positioning tube 10 is provided with a positioning component that can be engaged with the piston rod 9.

[0033] The second push rod motor 19, under the action of the connecting rod 11, works with the positioning tube 10 to drive the piston rod 9 to rotate inward, so that the clamping plates 901 move closer to each other and clamp the core.

[0034] like Figure 5 As shown, the extension plate 1201 has a reserved hole 1203 with an L-shaped cross section that is connected to the main rod 12, and the connecting rod 11 can pass through the reserved hole 1203.

[0035] like Figure 3 , Figure 6 and Figure 7 As shown, the inner ring of the positioning tube 10 has multiple inner grooves 1001 arranged in a circular array with the positioning tube 10 as the axis. The positioning component includes a return spring 21 fixedly connected in the inner groove 1001. The free end of the return spring 21 is provided with a locking block 24 that is slidably sleeved in the inner groove 1001. The free end of the locking block 24 is hemispherical or arc-shaped. The piston rod 9 has a positioning groove 902 that matches the locking block 24.

[0036] When it is necessary to clamp the core, pull the piston rod 9 upward to separate the iron plate 2001 from the strong magnetic plate 22. After pulling it upward a distance, the locking block 24 enters the positioning groove 902, and the reset spring 21 resets, thereby positioning the piston rod 9. Then, start the second push rod motor 19 to drive the connecting rod 11 through the reserved hole 1203 and make the clamping plates 901 move closer to each other to clamp the core.

[0037] like Figure 4 As shown, the diameter of the top end of the extraction cylinder 16 is smaller than the diameter of the piston 23, so that the piston 23 can block the outlet at the top end of the extraction cylinder 16, preventing pathological tissue from leaking out of the extraction cylinder 16 and causing contamination when the extraction mechanism is rotated.

[0038] like Figure 1 As shown, to avoid confusion in the patient's pathological tissue, a sliding sleeve 13 is slidably connected to the outer ring of the main rod 12. Multiple connecting pieces 14 are fixedly connected to the outer ring of the sliding sleeve 13. The free end of the connecting piece 14 is provided with a second sleeve 15 that is rotatably sleeved on the outer ring of the extraction cylinder 16. This ensures that all extraction cylinders 16 used in this operation are assembled on the second sleeve 15. With the cooperation of the connecting piece 14 and the sliding sleeve 13, all extraction cylinders 16 are kept together and will not be mixed with the pathological tissue of other patients.

[0039] To conserve doctors' energy, such as Figure 1 and Figure 2 As shown, a support member is fixedly connected to the extension plate 1201 by bolts. The support frame includes a telescopic rod 6 arranged laterally. The lateral distance of the extraction mechanism is adjusted by the telescopic rod 6. The outer ring of the free end of the telescopic rod 6 is rotatably connected to the connecting cylinder 17, so that the extraction mechanism can rotate around the connecting cylinder 17 as the axis, so that the clamping plate 901 faces the patient and clamps the tumor core. The free end of the connecting cylinder 17 is fixedly connected to the first sleeve 7. The inner ring of the first sleeve 7 is slidably sleeved with the ring plate 8. Three sets of lugs 801 are fixedly connected to the inner side of the ring plate 8, with two in each set. The extension plate 1201 is located between each set of lugs 801 and is fixed by bolts. Thus, the extraction mechanism can be rotated by the rotation of the ring plate 8, so that the extraction tube 1601, which has not been used to extract pathological tissue, faces the patient.

[0040] like Figure 1 and Figure 2 As shown, the support frame also includes a longitudinally arranged base plate 1, a support rod 2 fixedly connected to the top of the base plate 1, a top plate 3 fixedly connected to the top of the support rod 2, and two symmetrically distributed first push rod motors 4 fixedly connected to the top of the top plate 3. The longitudinal height of the extraction mechanism is adjusted by the first push rod motors 4. The output end of the first push rod motor 4 is fixedly connected to a support plate 5, and the telescopic rod 6 is fixedly sleeved inside the support plate 5.

[0041] Because the support frame is detachable, doctors can freely choose to operate the extraction mechanism by hand (for greater flexibility) or use the support frame to adjust the lateral and longitudinal distances of the extraction mechanism (saving doctors' energy).

[0042] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intraoperative pathologic tissue extraction device comprising an extraction mechanism, characterized by: The extraction mechanism comprises a main rod (12), the top end of the main rod (12) is fixedly connected with a plurality of extension plates (1201) in circular array with the main rod (12) as the axis, the number of the extension plates (1201) is not less than three, the bottom of the extension plate (1201) is fixedly connected with a matching cylinder (18), the matching cylinder (18) is connected with an extraction cylinder (16) through internal thread, the bottom of the extraction cylinder (16) is fixedly sleeved with an extraction pipe (1601), the extraction pipe (1601) is slidably sleeved with a piston (23), the piston (23) is provided with a detachable piston rod (9), the top end of the piston rod (9) is provided with a clamping plate (901); The main rod (12) is provided with a driving element for rotating the clamping plate (901); the main rod (12) is provided with a mounting groove (1202), the driving element comprises a second push rod motor (19) arranged in the mounting groove (1202), the output shaft of the second push rod motor (19) is hingedly connected with a plurality of connecting rods (11), the free end of the connecting rod (11) is hingedly connected with a positioning pipe (10) sleeved on the outer circle of the piston rod (9), the positioning pipe (10) is provided with a positioning element capable of being clamped with the piston rod (9); The piston (23) is fixedly connected with a strong magnetic sheet (22), the extension plate (1201) is slidably sleeved with a piston rod (9), the bottom end of the piston rod (9) is hingedly connected with a bottom rod (20), the bottom end of the bottom rod (20) is fixedly connected with an iron sheet (2001) attracted to the strong magnetic sheet (22); the extension plate (1201) is provided with a reserved hole (1203) in L-shaped cross section in communication with the main rod (12), the connecting rod (11) can pass through the reserved hole (1203); The main rod (12) is provided with a driving element for rotating the clamping plate (901); the main rod (12) is provided with a mounting groove (1202), the driving element comprises a second push rod motor (19) arranged in the mounting groove (1202), the output shaft of the second push rod motor (19) is hingedly connected with a plurality of connecting rods (11), the free end of the connecting rod (11) is hingedly connected with a positioning pipe (10) sleeved on the outer circle of the piston rod (9), the positioning pipe (10) is provided with a positioning element capable of being clamped with the piston rod (9); The inner circle of the positioning pipe (10) is provided with a plurality of inner grooves (1001) in circular array with the positioning pipe (10) as the axis, the positioning element comprises a return spring (21) fixedly connected in the inner groove (1001), the free end of the return spring (21) is provided with a clamping block (24) slidably sleeved in the inner groove (1001), the free end of the clamping block (24) is semispherical or arc-shaped, the piston rod (9) is provided with a positioning groove (902) matched with the clamping block (24).

2. An intraoperative histopathological tissue extraction device according to claim 1, characterized in that: The top end diameter of the extraction cylinder (16) is smaller than the diameter of the piston (23).

3. The intraoperative histopathological tissue extraction device of claim 1, wherein: The outer ring of the main rod (12) is sleeved with a sliding sleeve (13), the outer ring of the sliding sleeve (13) is fixedly connected with a plurality of connecting pieces (14), and the free end of the connecting piece (14) is provided with a second sleeve (15) which is rotatably sleeved on the outer ring of the extraction cylinder (16).

4. The intraoperative histopathological tissue extraction device of claim 1, wherein: The extension plate (1201) is fixedly connected with a support frame through bolts, the support frame includes a telescopic rod (6) arranged transversely, the free end of the telescopic rod (6) is rotatably connected with a connecting cylinder (17), the free end of the connecting cylinder (17) is fixedly connected with a first sleeve (7), the inner ring of the first sleeve (7) is sleeved with a ring plate (8), the inner side of the ring plate (8) is fixedly connected with three groups of lugs (801), each group has two, the extension plate (1201) is located between each group of lugs (801) and is fixed by bolts.

5. An intraoperative histopathological tissue extraction device according to claim 4, characterized in that: The support frame further includes a bottom plate (1) arranged longitudinally, the top of the bottom plate (1) is fixedly connected with a support rod (2), the top of the support rod (2) is fixedly connected with a top plate (3), the top of the top plate (3) is fixedly connected with two symmetrically distributed first push rod motors (4), the output end of the first push rod motor (4) is fixedly connected with a support plate (5), and the telescopic rod (6) is fixedly sleeved in the support plate (5).

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