A sampling device for clinical biopsy

Abstract

A sampling device for clinical biopsy of the present invention comprises a trephine assembly, wherein the trephine assembly comprises a barrel, a cylindrical groove is provided at the top of the barrel, a receiving groove is provided at the bottom of the barrel, a connecting rod is inserted in the cylindrical groove, the bottom of the connecting rod passes through the cylindrical groove to the receiving groove, a trephine sampler is fixed at the bottom of the connecting rod, a disc is fixed on the connecting rod, the disc can be lifted and lowered in the cylindrical groove and can be rotated in the cylindrical groove, a No. 1 spring is placed between the disc and the bottom wall of the cylindrical groove, and an operating head is fixed on the top of the connecting rod; a lifting control assembly is added to the barrel to effectively control the range of the trephine depth.

Description

Technical Field

[0001] The present invention relates to the field related to biopsy technology, in particular to a sampling device for clinical biopsy. Background Art

[0002] Skin biopsy is a common clinical examination method in hospitals. By taking samples from the site where the skin disease occurs, it is helpful for subsequent pathological examinations, thereby facilitating the final clinical diagnosis or treatment. The skin is not a thin layer on the surface, but a three-dimensional structure that contains many accessory organs and tissues, such as sweat glands, hair follicles, blood vessels, etc. These structures are relatively microscopic and cannot be observed with the naked eye. Microscopes and other equipment are required for observation. The specific method is to take samples and then slice the samples for observation.

[0003] Currently, the most common sampling method in clinical practice is trephine biopsy, because it is less invasive and can reach a certain cutting depth. Trephine biopsy uses a hollow round scalpel to cut lesions on the skin. The trephine rotates clockwise and counterclockwise to cut the skin about 4 mm thick and reach the fat tissue layer below the dermis. The cut tissue sample is then taken out and examined under a microscope.

[0004] However, the situation of each patient is different. If the doctor is not particularly experienced, it is difficult to take out clinical samples that meet the standards every time. Based on this, a sampling device for clinical biopsy is developed that can greatly reduce the difficulty of sampling. Summary of the invention

[0005] The object of the present invention is to provide a sampling device for clinical biopsy to solve the above problems.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a sampling device for clinical biopsy, comprising a trephine assembly, the trephine assembly comprising a barrel, a cylindrical groove is provided at the top of the barrel, a receiving groove is provided at the bottom of the barrel, a connecting rod is inserted in the cylindrical groove, the bottom of the connecting rod passes through the cylindrical groove to the receiving groove, a trephine sampler is fixed at the bottom of the connecting rod, a disc is fixed on the connecting rod, the disc can be lifted and lowered in the cylindrical groove, and can be rotated in the cylindrical groove, a No. 1 spring is placed between the disc and the bottom wall of the cylindrical groove, and an operating head is fixed at the top of the connecting rod;

[0007] The cylinder body is equipped with a lifting control assembly, the lifting control assembly includes a through groove provided on the cylinder body, a threaded groove provided on one side of the through groove, a threaded block is threadedly connected on the threaded groove, a gear is fixed on one side of the threaded block, a handle is fixed on one side of the gear, a blocking piece fixed to the cylinder body is abutted on one side of the handle, a lifting groove is provided on the top of the cylinder body, a rack is slidably installed in the lifting groove, one side of the rack is meshed with the gear, the rack is located below the operating head, and a scale is provided on the other side of the rack. When the user manually presses the operating head to descend, the operating head will eventually be blocked by the rack, thereby controlling the drilling depth of the drilling device fixed to the operating head, and the gear and the threaded groove are driven to rotate by manually rotating the handle. The gear is always meshed with the rack during the rotation process, so that the rack can be lifted and lowered, and the drilling depth of the drilling device can be intuitively controlled by the scale on the rack;

[0008] A pressure sensor is installed on the top of the rack, and a control box and a light are embedded on the cylinder. When the operating head descends and presses the pressure sensor, the pressure sensor will send a signal to the control box, and the control box will control the light to illuminate, so that the user can clearly see that complete trephination has been achieved, thereby improving the user's trephination success rate.

[0009] Preferably, the trepanation assembly matches the positioning assembly, the positioning assembly includes a positioning block, at least one slot is provided on the positioning block, a connecting slot is provided on the positioning block, a bottom slot penetrating the positioning block is provided on one side of the connecting slot, a cover plate is hingedly connected in the connecting slot, a positioning hole is provided in the cover plate, the size of the positioning hole is slightly larger than the size of the trepanation knife, the positioning hole can be used as a guide for the trepanation knife, a fixed protrusion is provided on the cover plate, a limiting hole is provided on one side of the slot, a fixing assembly is fixedly installed on the positioning block to fix the positioning block to the patient's part where sampling is to be performed, an auxiliary positioning assembly is installed on the cylinder body to cooperate with the positioning assembly, the auxiliary positioning assembly includes a fixing rod fixed to the cylinder body, the bottom of the fixing rod is fixed to a bottom plate, at least one insert is fixed on the bottom plate, a telescopic slot is provided in the insert, a No. 2 spring is fixed at the bottom of the telescopic slot, and a limiting block is fixed at the top of the No. 2 spring.

[0010] Preferably, the fixing assembly comprises a No. 1 strap and a No. 2 strap fixed on both sides of the positioning block, and a Velcro suede is fixed on the No. 1 strap.

[0011] Preferably, the limiting block and the limiting hole are both arc-shaped.

[0012] Preferably, the spacing between the slots is the same as the spacing between the limit blocks.

[0013] Preferably, after the trephination is completed, the sample drilled out needs to be cut. To facilitate the cutting of the sample, after the trephination assembly is removed from the positioning assembly, the protrusion is pulled and the cover is manually opened to obtain a larger cutting space.

[0014] Preferably, the trephine material extractor is composed of a fixing seat and a trephine cutter, and the fixing seat and the connecting rod are detachably fixed.

[0015] Preferably, a friction layer is fixed on the cylinder.

[0016] Preferably, an observation window is fixed at the bottom of the cylinder.

[0017] In summary, the present invention has the following beneficial effects:

[0018] 1. The present application further comprises a lifting control assembly on the cylinder body, the lifting control assembly comprising a through groove on the cylinder body, a threaded groove on one side of the through groove, a threaded block on the threaded groove, a gear fixed on one side of the threaded block, a handle fixed on one side of the gear, a lifting groove on the top of the cylinder body, a rack slidably installed in the lifting groove, one side of the rack meshing with the gear, the rack is located below the operating head, and a scale is provided on the other side of the rack. When the user manually presses the operating head to descend, the operating head will eventually be blocked by the rack, thereby controlling the drilling depth of the drilling device fixed to the operating head, and the gear and the threaded groove are driven to rotate by manually turning the handle, and the gear always keeps meshing with the rack during the rotation process, so that the rack can be lifted and lowered, and the drilling depth of the drilling device can be intuitively controlled by the scale on the rack, and the cooperation of the threaded block and the threaded groove can effectively control the lifting range of the rack, thereby controlling the range of the drilling depth.

[0019] 2. A pressure sensor is installed on the top of the rack, and a control box and a light are embedded on the cylinder. When the operating head descends and presses the pressure sensor, the pressure sensor will send a signal to the control box, and the control box will control the light to light up, so that the user can clearly see that complete trepanation has been achieved, thereby improving the user's trepanation success rate.

[0020] 3. The present application is equipped with a positioning component used in conjunction with the trephine component, the positioning component includes a positioning block, at least one slot is provided on the positioning block, a connecting slot is provided on the positioning block, a bottom slot penetrating the positioning block is provided on one side of the connecting slot, a cover plate is hingedly connected in the connecting slot, a positioning hole is provided in the cover plate, the size of the positioning hole is slightly larger than the size of the trephine knife, the positioning hole can be a guide for the trephine knife, a fixed protrusion is provided on the cover plate, a limited position hole is provided on one side of the slot, a fixing component is fixedly installed on the positioning block to fix the positioning block to the part of the patient where sampling is to be performed, the fixing component includes a No. 1 strap and a No. 2 strap fixed on both sides of the positioning block, a Velcro velvet surface is fixed on the No. 1 strap, and a Velcro adhesive surface is fixed on the No. 2 strap, the Velcro adhesive surface is adhered to the Velcro velvet surface to achieve the fixing of the positioning block on the patient, and the positioning hole is aligned with the exact sampling point;

[0021] An auxiliary positioning assembly is installed on the cylinder to cooperate with the positioning assembly. The auxiliary positioning assembly includes a fixing rod fixed to the cylinder, a bottom plate is fixed at the bottom of the fixing rod, at least one insert is fixed on the bottom plate, a telescopic slot is provided in the insert, a No. 2 spring is fixed at the bottom of the telescopic slot, and a limit block is fixed at the top of the No. 2 spring;

[0022] After fixing the positioning block on the part of the patient where sampling is to be performed, the user inserts the limit block into the corresponding slot, the limit block retracts into the telescopic slot, and the No. 2 spring is compressed until the limit block is aligned with the limit hole. The No. 2 spring is reset, driving the limit block to be inserted into the limit hole to complete the positioning. At this time, the positioning hole is facing the trepanation knife, so that the user's trepanation point can be very accurate and effective each time, ensuring the sampling quality.

[0023] 4. After the trephination is completed, the sample drilled out needs to be cut. To facilitate the cutting of the sample, after removing the trephination assembly from the positioning assembly, pull the protrusion and manually open the cover to obtain a larger cutting space. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 is a first schematic diagram of the appearance of the trephine assembly of the present invention;

[0026] Figure 2 is a second schematic diagram of the appearance of the trephine assembly of the present invention;

[0027] Figure 3 is a cross-sectional schematic diagram of a trephine assembly of the present invention;

[0028] Figure 4 yes Figure 3 The enlarged schematic diagram at A in the middle;

[0029] Figure 5 It is a cross-sectional view of the position of the limit block;

[0030] Figure 6 is a first schematic diagram of the appearance of the positioning assembly of Example 1 of the present invention;

[0031] Figure 7 is a second schematic diagram of the appearance of the positioning assembly of Example 1 of the present invention;

[0032] Figure 8 is a cross-sectional view of a positioning block of the present invention;

[0033] Fig. 9 is a first schematic diagram of the appearance of a positioning assembly according to Embodiment 2 of the present invention;

[0034] Fig.10 is a first schematic diagram of the appearance of a positioning assembly according to Embodiment 2 of the present invention;

[0035] In the figure: 11, cylinder; 12, friction layer; 13, lamp; 14, operating head; 15, connecting rod; 16, control box; 17, pressure sensor; 18, rack; 19, handle; 20, baffle; 21, limit block; 22, insert; 23, bottom plate; 24, fixing rod; 25, cylindrical groove; 26, disc; 27, No. 1 spring; 28, fixing seat; 29, storage groove; 30, ring drill; 31, through groove; 32, gear; 33, thread block; 34, Threaded groove; 35. Telescopic groove; 36. No. 2 spring; 37. No. 1 strap; 38. Velcro velvet; 39. Positioning block; 40. Cover plate; 41. Positioning hole; 42. Protrusion; 43. Slot; 44. No. 2 strap; 45. Velcro sticky surface; 46. Connecting groove; 47. Bottom groove; 48. Limiting hole; 49. Connecting layer; 50. Ring drill assembly; 51. Release paper; 52. Lifting groove; 53. Observation window; 60. Positioning assembly; 70. Lifting control assembly. DETAILED DESCRIPTION

[0036] Example 1

[0037] Combined with Figure 1-Figure 8 The sampling device for clinical biopsy;

[0038] The invention comprises a trephine assembly 50, wherein the trephine assembly 50 comprises a barrel 11, a cylindrical groove 25 is provided at the top of the barrel 11, a receiving groove 29 is provided at the bottom of the barrel 11, a connecting rod 15 is inserted in the cylindrical groove 25, the bottom of the connecting rod 15 passes through the cylindrical groove 25 to the receiving groove 29, a trephine sampling device is fixed at the bottom of the connecting rod 15, a disc 26 is fixed on the connecting rod 15, the disc 26 can be lifted and lowered in the cylindrical groove 25, and can be rotated in the cylindrical groove 25, a spring 27 is placed between the disc 26 and the bottom wall of the cylindrical groove 25, an operating head 14 is fixed at the top of the connecting rod 15, and a user drives the trephine sampling device to perform a patient sampling operation on the patient's skin by manually pressing and rotating the operating head 14:

[0039] The above-mentioned trephine sampling process is a conventional operation and structure. The applicant believes that there are two problems with the above-mentioned structure. First, the sampling depth is different for different physical conditions of patients. The above-mentioned structure cannot control the sampling depth and depends entirely on the user's own technical level. The operation is a bit difficult. Second, the positioning of the trephine point in the trephine sampling process lacks markings. The actual position of the trephine is too dependent on the user's technical level and is likely to deviate from the initially determined position, resulting in inaccurate sampling position.

[0040] In addition, the trephine material extractor is composed of a fixing seat 28 and a trephine cutter 30 , and the fixing seat 28 and the connecting rod 15 can be detachably fixed to facilitate installation.

[0041] In addition, a friction layer 12 is fixed on the cylinder 11 to increase the friction between the cylinder 11 and the palm of the user, making the user more comfortable to use.

[0042] In addition, an observation window 53 is fixed at the bottom of the barrel 11. The observation window 53 is made of transparent material, which is convenient for the user to observe the patient's skin condition during operation.

[0043] In order to solve the above-mentioned problem 1, a lifting control component 70 is installed on the cylinder 11, and the lifting control component 70 includes a through groove 31 opened on the cylinder 11, a threaded groove 34 is opened on one side of the through groove 31, and a threaded block 33 is threadedly connected to the threaded groove 34, a gear 32 is fixed on one side of the threaded block 33, a handle 19 is fixed on one side of the gear 32, and a baffle 20 fixed to the cylinder 11 is provided on one side of the handle 19, and a lifting groove 52 is opened at the top of the cylinder 11, and a rack 18 is slidably installed in the lifting groove 52, one side of the rack 18 is meshed with the gear 32, and the rack 18 is located below the operating head 14, and a scale is provided on the other side of the rack 18. When the user manually presses the operating head, the rack 18 is lowered. When the operating head 14 descends, the operating head 14 will eventually be blocked by the rack 18, thereby controlling the trepanation depth of the trepanation material extractor fixed to the operating head 14, and the gear 32 and the thread groove 34 are driven to rotate by manually rotating the handle 19. The gear 32 always keeps meshing with the rack 18 during the rotation process, so that the rack 18 can be raised and lowered. The trepanation depth of the trepanation material extractor can be intuitively controlled by the scale on the rack 18. The cooperation between the thread block 33 and the thread groove 34 can effectively control the lifting range of the rack 18, thereby controlling the range of the trepanation depth; the function of the blocking piece 20 is to resist the handle 19 to prevent the thread block 33 from detaching from the thread groove 34;

[0044] Furthermore, in order to provide users with a better user experience, the applicant installed a pressure sensor 17 on the top of the rack 18, and embedded a control box 16 and a light 13 on the cylinder 11. When the operating head 14 descends and presses the pressure sensor 17, the pressure sensor 17 will send a signal to the control box 16, and the control box 16 will control the light 13 to illuminate, so that the user can clearly see that complete trephination has been achieved, thereby improving the user's trephination success rate.

[0045] In order to solve the above-mentioned problem 2, the present application is equipped with a positioning component 60 used in conjunction with the trepanation component 50, the positioning component 60 includes a positioning block 39, at least one slot 43 is provided on the positioning block 39, a connecting groove 46 is provided on the positioning block 39, a bottom groove 47 penetrating the positioning block 39 is provided on one side of the connecting groove 46, a cover plate 40 is hingedly connected in the connecting groove 46, a positioning hole 41 is provided in the cover plate 40, the size of the positioning hole 41 is slightly larger than the size of the trepanation tool 30, the positioning hole 41 can be a guide for the trepanation tool 30, the cover plate A protrusion 42 is fixed on the upper surface of the positioning block 39, and a limiting hole 48 is provided on one side of the slot 43. A fixing assembly is fixedly installed on the positioning block 39 to fix the positioning block 39 at the part of the patient where sampling is to be performed. The fixing assembly includes a No. 1 strap 37 and a No. 2 strap 44 fixed on both sides of the positioning block 39. The No. 1 strap 37 is fixed with a Velcro velvet surface 38, and the No. 2 strap 44 is fixed with a Velcro adhesive surface 45. The Velcro adhesive surface 45 is adhered to the Velcro velvet surface 38 to achieve the fixing of the positioning block 39 on the patient, and the positioning hole 41 is aligned with the exact sampling point;

[0046] An auxiliary positioning assembly is installed on the cylinder 11 to cooperate with the positioning assembly 60. The auxiliary positioning assembly includes a fixing rod 24 fixed to the cylinder 11. The bottom of the fixing rod 24 is fixed to a bottom plate 23. At least one inserting strip 22 is fixed to the bottom plate 23. A telescopic groove 35 is provided in the inserting strip 22. A second spring 36 is fixed to the bottom of the telescopic groove 35. A limit block 21 is fixed to the top of the second spring 36.

[0047] The limiting block 21 and the limiting hole 48 are both arc-shaped, which is convenient for taking and placing;

[0048] The spacing between the slots 43 is the same as the spacing between the limit blocks 21, so that the limit blocks 21 are conveniently inserted into the slots 43 for positioning;

[0049] After fixing the positioning block 39 at the part of the patient where sampling is to be performed, the user inserts the limit block 21 into the corresponding slot 43, and the limit block 21 retracts into the telescopic slot 35. The No. 2 spring 36 is compressed until the limit block 21 is aligned with the limit hole 48. The No. 2 spring 36 is reset, driving the limit block 21 to be inserted into the limit hole 48 to complete the positioning. At this time, the positioning hole 41 is facing the trepanation knife 30, so that the user's trepanation point can be very accurate and effective each time, thereby ensuring the sampling quality.

[0050] After the trephination is completed, the sample drilled out needs to be cut. To facilitate the cutting of the sample, after the trephination assembly 50 is removed from the positioning assembly 60 (the shape design of the limit block 21 and the limit hole 48 allows the trephination assembly 50 to be directly pulled out when a larger force is applied), pull the protrusion 42 and manually open the cover plate 40 to obtain a larger cutting space.

[0051] Example 2

[0052] See also Figure 9-10 This embodiment is an improvement on the fixing component. The fixing component in the above-mentioned embodiment 1 can only be fixed on the hands, legs, neck and other positions, and is difficult to use in positions that cannot be bound (such as the torso and other positions). Based on this, in this embodiment, the difference from embodiment 1 is that what is fixed to the positioning block 39 is a connecting layer 49, the bottom of the connecting layer 49 is sticky, and the connecting layer 49 is a soft material;

[0053] A release paper 51 is adhered to the bottom of the connection layer 49 , and one side of the release paper 51 protrudes for easy tearing off.

[0054] After tearing off the release paper 51 , the connecting layer 49 can be adhered to the patient for easy positioning.

[0055] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology in this field to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A sampling device for clinical biopsy, comprising a trephine assembly (50), the trephine assembly (50) comprising a barrel (11), a cylindrical groove (25) being provided at the top of the barrel (11), a receiving groove (29) being provided at the bottom of the barrel (11), a connecting rod (15) being inserted into the cylindrical groove (25), the bottom of the connecting rod (15) passing through the cylindrical groove (25) to the receiving groove (29), a trephine sampling device being fixed at the bottom of the connecting rod (15), a disc (26) being fixed on the connecting rod (15), the disc (26) being able to both rise and fall in the cylindrical groove (25) and to rotate in the cylindrical groove (25), a first spring (27) being arranged between the disc (26) and the bottom wall of the cylindrical groove (25), an operating head (14) being fixed at the top of the connecting rod (15), characterized in that: A lifting control assembly (70) is installed on the cylinder (11), and the lifting control assembly (70) comprises a through groove (31) provided on the cylinder (11), a thread groove (34) provided on one side of the through groove (31), a thread block (33) being threadedly connected to the thread groove (34), a gear (32) being fixed on one side of the thread block (33), a handle (19) being fixed on one side of the gear (32), a baffle (20) fixed to the cylinder (11) being provided on one side of the handle (19), a lifting groove (52) being provided on the top of the cylinder (11), a rack (18) being slidably installed in the lifting groove (52), one side of the rack (18) being in contact with the gear (32) and the other side of the rack (18) being in contact with the gear (32). 2) engagement, the rack (18) is located below the operating head (14), and a scale is provided on the other side of the rack (18). When the user manually presses the operating head (14) to descend, the operating head (14) will eventually be blocked by the rack (18), thereby controlling the trepanation depth of the trepanation device fixed to the operating head (14). The gear (32) and the thread groove (34) are driven to rotate by manually rotating the handle (19). During the rotation process, the gear (32) always remains engaged with the rack (18), so that the rack (18) can be raised and lowered. The trepanation depth of the trepanation device can be intuitively controlled by the scale on the rack (18); A pressure sensor (17) is installed on the top of the rack (18), and a control box (16) and a light (13) are embedded in the cylinder (11). When the operating head (14) descends and presses the pressure sensor (17), the pressure sensor (17) sends a signal to the control box (16), and the control box (16) controls the light (13) to emit light, so that the user can clearly see that complete trepanation has been achieved, thereby improving the user's trepanation success rate.

2. A sampling device for clinical biopsy according to claim 1, characterized in that: The trepanation assembly (50) matches the positioning assembly (60), the positioning assembly (60) comprising a positioning block (39), at least one slot (43) being provided on the positioning block (39), a connecting groove (46) being provided on the positioning block (39), a bottom groove (47) penetrating the positioning block (39) being provided on one side of the connecting groove (46), a cover plate (40) being hingedly connected in the connecting groove (46), a positioning hole (41) being penetrating in the cover plate (40), the size of the positioning hole (41) being slightly larger than the size of the trepanation knife (30), the positioning hole (41) being able to guide the trepanation knife (30), a fixing protrusion (42) being provided on the cover plate (40), the insert protrusion (47) being provided on the cover plate (40), and the insert protrusion (47) being provided on the cover plate (40). A limiting hole (48) is provided on one side of the groove (43); a fixing assembly is fixedly mounted on the positioning block (39) to fix the positioning block (39) at a location on a patient where a sample is to be taken; an auxiliary positioning assembly is mounted on the cylinder (11) to cooperate with the positioning assembly (60); the auxiliary positioning assembly comprises a fixing rod (24) fixed to the cylinder (11); the bottom of the fixing rod (24) is fixed to a bottom plate (23); at least one insert (22) is fixed to the bottom plate (23); a telescopic groove (35) is provided in the insert (22); a second spring (36) is fixed to the bottom of the telescopic groove (35); and the top of the second spring (36) is fixed to a limiting block (21).

3. A sampling device for clinical biopsy according to claim 2, characterized in that: The fixing assembly comprises a No. 1 binding strap (37) and a No. 2 binding strap (44) fixed to two sides of the positioning block (39), and a Velcro velvet surface (38) is fixed to the No. 1 binding strap (37).

4. A sampling device for clinical biopsy according to claim 2, characterized in that: The limiting block (21) and the limiting hole (48) are both arc-shaped.

5. A clinical biopsy sampling device according to claim 2, characterized in that: The spacing between the slots (43) is the same as the spacing between the limit blocks (21).

6. A clinical biopsy sampling device according to claim 2, characterized in that: After the trephination is completed, the sample drilled out needs to be cut. To facilitate cutting of the sample, after the trephination assembly (50) is removed from the positioning assembly (60), the protrusion (42) is pulled and the cover plate (40) is manually opened to obtain a larger cutting space.

7. A sampling device for clinical biopsy according to claim 1, characterized in that: The trephine material extractor is composed of a fixing seat (28) and a trephine knife (30), and the fixing seat (28) and the connecting rod (15) are detachably fixed.

8. A sampling device for clinical biopsy according to claim 1, characterized in that: A friction layer (12) is fixed on the cylinder (11).

9. A sampling device for clinical biopsy according to claim 1, characterized in that: An observation window (53) is fixed at the bottom of the cylinder (11).

Images