Capillary tube regulator

Abstract

The application provides a cap type puncture needle auxiliary adjusting device and adjusting method, which comprises an adjusting device component and a breaking mechanism, the adjusting device component comprises a fixing block, a connecting pipe, a puncture needle body and a first threaded block, the breaking mechanism comprises a first threaded sleeve and a second threaded block, the puncture needle body is inserted into the inside of the fixing block, then the length of the puncture needle body inserted into the fixing block is accurately adjusted according to the puncture depth, then the puncture needle body is extruded and fixed by rotating the first threaded sleeve to drive the pressing block, then the outer wall of the puncture needle body is extruded by the knife body driven by the connecting rod through the convex block, then the puncture needle body is cut and broken by rotating the second threaded block to drive the knife body, the excess part of the puncture needle body is cut off, so that the length of the puncture needle body is unified with the required puncture depth, the phenomenon of insufficient puncture depth or excessive puncture is avoided, the puncture effect is improved, and secondary damage to the patient is avoided.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a cap-type puncture needle auxiliary adjuster and adjustment method. Background Technology

[0002] Similar to spinal endoscopy, percutaneous endoscopic discectomy (PED) involves a tube equipped with a light that enters the intervertebral foramen from the side or posterolateral side of the patient's body. The surgery is performed within a safe working triangle, outside the annulus fibrosus of the intervertebral disc. Under direct endoscopic visualization, the herniated nucleus pulposus, nerve roots, dural sac, and proliferating bone tissue can be clearly seen. Various grasping forceps are then used to remove the herniated tissue, bone is removed endoscopically, and radiofrequency electrodes are used to repair the damaged annulus fibrosus. A cap-type puncture needle is one of the important medical instruments in PED, primarily used to assist in bone removal and biopsy sampling.

[0003] Traditional cap-type puncture needles often cannot be precisely adjusted in length according to actual needs. As a result, during percutaneous endoscopic discectomy, medical staff need to rely on their experience to control the puncture depth of the cap-type puncture needle to ensure that the needle tip punctures the expected target position. This can easily lead to insufficient or excessive puncture depth when the medical staff lacks experience, affecting the puncture effect and potentially causing secondary injury to the patient. Therefore, a cap-type puncture needle auxiliary adjuster and adjustment method are proposed. Summary of the Invention

[0004] In view of this, the present invention aims to provide a cap-type puncture needle auxiliary adjuster and adjustment method to solve or alleviate the technical problems existing in the prior art, or at least provide a beneficial alternative.

[0005] The technical solution of this invention is implemented as follows: a cap-type puncture needle auxiliary adjuster, including an adjuster assembly and a breaking mechanism, wherein the adjuster assembly includes a fixing block, a connecting tube, a puncture needle body and a first threaded block;

[0006] The breaking mechanism includes a first threaded sleeve, a second threaded block, several pressure blocks, several protrusions, a connecting rod, and a blade body;

[0007] The outer wall of the puncture needle body is slidably connected to the inner wall of the fixing block. The connecting tube is located on the side of the fixing block away from the puncture needle body. The first threaded block is fixedly connected to one side of the fixing block. The inner wall of the first threaded sleeve is threadedly connected to the outer wall of the first threaded block. The sides of several pressure blocks near the first threaded sleeve are hinged to the inner wall of the first threaded block. The second threaded block is fixedly connected to the other side of the fixing block. The several protrusions are slidably connected to the inner wall of the second threaded block. The connecting rod is located on the side of the protrusion away from the second threaded block. The blade is fixedly connected to the end of the connecting rod away from the protrusion.

[0008] More preferably, the inner wall of the second threaded block is uniformly provided with a sliding groove, and a guide plate is slidably connected to the inner wall of the sliding groove. The sides of the protrusions near the connecting rod are respectively fixedly connected to the side of the guide plate away from the connecting rod.

[0009] More preferably, the end of the connecting rod away from the blade is fixedly connected to the side of the guide plate away from the protrusion, the outer side wall of the connecting rod is slidably connected to the inner side wall of the second threaded block, a rubber block is fixedly connected to the middle of the inner side wall of the fixing block, and the outer side wall of the puncture needle body is slidably connected to the inner side wall of the rubber block.

[0010] More preferably, springs are fixedly connected to the inner sidewalls of the slide groove, and the end of the spring away from the cutter body is fixedly connected to the side of the guide plate away from the protrusion.

[0011] More preferably, the outer wall of the second threaded block is threadedly connected to a second threaded sleeve, and the outer wall of the protrusion is slidably connected to the inner wall of the second threaded sleeve.

[0012] More preferably, a connecting plate is fixedly connected to the side of the second threaded block near the fixed block, and a connecting groove is opened on the side of the fixed block near the second threaded block. The outer side wall of the connecting plate is slidably connected to the inner side wall of the connecting groove.

[0013] More preferably, the outer side wall of the first threaded block is uniformly provided with through grooves, and the outer side walls of the plurality of pressure blocks are respectively slidably connected to the inner side wall of the through grooves.

[0014] More preferably, a positioning plate is fixedly connected to the end of the first threaded block away from the fixed block, and the outer side wall of the connecting pipe is fixedly connected to the inner side wall of the second threaded block on the side closest to the fixed block.

[0015] In addition, the present invention also provides a method for assisting in the adjustment of a cap-type puncture needle, comprising the following steps:

[0016] S1. Determine the puncture target location and required puncture depth based on the patient's physical signs, clinical symptoms and medical imaging data;

[0017] S2. Select the puncture needle body according to the required puncture depth, and move the puncture needle body to insert into the inside of the fixing block. Then, adjust the length of the puncture needle body inserted into the fixing block precisely according to the puncture depth.

[0018] S3. Rotate the first threaded sleeve to squeeze the pressure block with the first threaded block, and then clamp and fix the outer wall of the puncture needle body through the squeezed pressure block.

[0019] S4. Rotate the second threaded sleeve to squeeze the protrusion with the second threaded block, and then drive the connecting rod and the blade body to move through the squeezed protrusion. The moving blade body squeezes the outer wall of the puncture needle body.

[0020] S5. Rotate the second threaded block to drive the blade to rotate around the puncture needle body, and use the rotating blade to cut off the excess part of the puncture needle body.

[0021] S6. Remove the excised puncture needle body from the second threaded block and connecting tube to complete the adjustment of the puncture needle body.

[0022] In a further preferred embodiment, in step S5, when the rotating blade penetrates deep into the interior of the puncture needle body, causing a noticeable indentation on the surface of the puncture needle body, the excess portion of the puncture needle body is broken off by manually pressing it.

[0023] The present invention has the following advantages due to the adoption of the above technical solutions: The present invention moves the puncture needle body into the interior of the fixing block, and then precisely adjusts the length of the puncture needle body inserted into the fixing block according to the puncture depth. Then, the first threaded sleeve is rotated to drive the pressure block to squeeze and fix the puncture needle body. Then, the protrusion uses the connecting rod to drive the blade to squeeze the outer wall of the puncture needle body. Then, the second threaded block is rotated to drive the blade to cut and break the puncture needle body, removing the excess part of the puncture needle body. Thus, the length of the puncture needle body is consistent with the required puncture depth, avoiding the phenomenon of insufficient puncture depth or excessive puncture, improving the puncture effect, and avoiding secondary damage to the patient.

[0024] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0025] 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.

[0026] Figure 1 This is a structural diagram of the present invention;

[0027] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0028] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of area A structure;

[0029] Figure 4 This is a schematic diagram of the axial structure of the first threaded sleeve and the second threaded block of the present invention;

[0030] Figure 5 This is a schematic diagram of the axial structure of the second threaded block of the present invention;

[0031] Figure 6 For the present invention Figure 5 A schematic diagram of the cross-sectional structure;

[0032] Figure 7 This is a side view of the structure of the present invention;

[0033] Figure 8 This is a flowchart of the steps of the present invention.

[0034] Reference numerals: 1. Adjuster assembly; 2. Breaking mechanism; 101. Fixing block; 102. Connecting tube; 103. Puncture needle body; 104. First threaded block; 201. First threaded sleeve; 202. Second threaded block; 203. Pressure block; 204. Protrusion; 205. Connecting rod; 206. Blade body; 41. Guide plate; 42. Slide groove; 43. Spring; 44. Connecting plate; 45. Positioning plate; 46. Second threaded sleeve; 47. Connecting groove; 48. Through groove; 49. Rubber block. Detailed Implementation

[0035] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0036] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0037] like Figure 1-8 As shown, this embodiment of the invention provides a cap-type puncture needle auxiliary adjuster, including an adjuster assembly 1 and a breaking mechanism 2. The adjuster assembly 1 includes a fixing block 101, a connecting tube 102, a puncture needle body 103, and a first threaded block 104.

[0038] The breaking mechanism 2 includes a first threaded sleeve 201, a second threaded block 202, several pressure blocks 203, several protrusions 204, a connecting rod 205, and a blade body 206;

[0039] The outer wall of the puncture needle body 103 is slidably connected to the inner wall of the fixing block 101. The connecting tube 102 is located on the side of the fixing block 101 away from the puncture needle body 103. The first threaded block 104 is fixedly connected to one side of the fixing block 101. The inner wall of the first threaded sleeve 201 is threadedly connected to the outer wall of the first threaded block 104. Several pressure blocks 203 are hinged to the inner wall of the first threaded block 104 on the side near the first threaded sleeve 201. The second threaded block 202 is fixedly connected to the other side of the fixing block 101. Several protrusions 204 are slidably connected to the inner wall of the second threaded block 202. The connecting rod 205 is located on the side of the protrusion 204 away from the second threaded block 202. The blade body 206 is fixedly connected to the end of the connecting rod 205 away from the protrusion 204.

[0040] In one embodiment, the inner sidewall of the second threaded block 202 is uniformly provided with grooves 42, and a guide plate 41 is slidably connected to the inner sidewall of the grooves 42. Several protrusions 204 are fixedly connected to the guide plate 41 on the side away from the connecting rod 205 on the side closer to the connecting rod 205. The guide plate 41 slides in the grooves 42 to guide the moving protrusions 204.

[0041] In one embodiment, the end of the connecting rod 205 away from the blade 206 is fixedly connected to the side of the guide plate 41 away from the protrusion 204. The outer side wall of the connecting rod 205 is slidably connected to the inner side wall of the second threaded block 202. A rubber block 49 is fixedly connected to the middle of the inner side wall of the fixing block 101. The outer side wall of the puncture needle body 103 is slidably connected to the inner side wall of the rubber block 49. The rubber block 49 ensures the sealing between the puncture needle body 103 and the fixing block 101.

[0042] In one embodiment, springs 43 are fixedly connected to the inner sidewalls of the slide groove 42. The end of the spring 43 away from the blade 206 is fixedly connected to the side of the guide plate 41 away from the protrusion 204. The compressed spring 43 drives the guide plate 41 to reset the protrusion 204, the connecting rod 205 and the blade 206.

[0043] In one embodiment, the outer wall of the second threaded block 202 is threadedly connected to the second threaded sleeve 46, and the outer wall of the protrusion 204 is slidably connected to the inner wall of the second threaded sleeve 46; by rotating the second threaded sleeve 46, the protrusion 204 is squeezed by the threads and the second threaded block 202.

[0044] In one embodiment, a connecting plate 44 is fixedly connected to the side of the second threaded block 202 near the fixed block 101, and a connecting groove 47 is provided on the side of the fixed block 101 near the second threaded block 202. The outer side wall of the connecting plate 44 is slidably connected to the inner side wall of the connecting groove 47. The connection between the second threaded block 202 and the fixed block 101 is increased by the connecting plate 44 and the connecting groove 47.

[0045] In one embodiment, the outer side wall of the first threaded block 104 is uniformly provided with through grooves 48, and the outer side walls of a plurality of pressure blocks 203 are respectively slidably connected to the inner side wall of the through grooves 48; the through grooves 48 guide the moving pressure blocks 203.

[0046] In one embodiment, a positioning plate 45 is fixedly connected to the end of the first threaded block 104 away from the fixed block 101, and the outer side wall of the connecting tube 102 is fixedly connected to the inner side wall of the second threaded block 202 on the side close to the fixed block 101; the positioning plate 45 limits the puncture depth of the puncture needle body 103.

[0047] In addition, the present invention also provides a method for assisting in the adjustment of a cap-type puncture needle, comprising the following steps:

[0048] S1. Determine the puncture target location and required puncture depth based on the patient's physical signs, clinical symptoms and medical imaging data;

[0049] S2. Select the puncture needle body 103 according to the required puncture depth, and move the puncture needle body 103 into the interior of the fixing block 101. Then, adjust the length of the puncture needle body 103 inserted into the fixing block 101 according to the puncture depth.

[0050] S3. Rotate the first threaded sleeve 201 to squeeze the pressure block 203 using the first threaded block 104, and then clamp and fix the outer wall of the puncture needle body 103 through the squeezed pressure block 203.

[0051] S4. Rotate the second threaded sleeve 46 to squeeze the protrusion 204 using the second threaded block 202. Then, the squeezed protrusion 204 drives the connecting rod 205 and the blade 206 to move. The moving blade 206 squeezes the outer wall of the puncture needle body 103.

[0052] S5. Rotate the second threaded block 202 to drive the blade 206 to rotate around the puncture needle body 103, and use the rotating blade 206 to cut and break off the excess part of the puncture needle body 103.

[0053] S6. Remove the cut-off puncture needle body 103 from the second threaded block 202 and the connecting tube 102 to complete the adjustment of the puncture needle body 103.

[0054] In one embodiment, in S5, when the rotating blade 206 penetrates into the interior of the puncture needle body 103, causing a noticeable indentation on the surface of the puncture needle body 103, the excess portion of the puncture needle body 103 is broken off by manually pressing it.

[0055] In operation, this invention works as follows: The puncture target location and required puncture depth are determined based on the patient's physical signs, clinical symptoms, and medical imaging data. Then, a puncture needle body 103 of appropriate length is selected according to the required puncture depth. The puncture needle body 103 is then moved and inserted into the fixing block 101. The length of the puncture needle body 103 inserted into the fixing block 101 and the length of the puncture needle body 103 exposed are then precisely adjusted according to the puncture depth. Finally, by rotating the first threaded sleeve 201, the threads and the first threaded block 104 are used to compress one side of the pressure block 203. The compressed pressure block 203 then conforms to the outer wall of the puncture needle body 103, thereby... The puncture needle body 103 is clamped and fixed. The through groove 48 guides the moving pressure block 203. Then, by rotating the second threaded sleeve 46, the threads and the second threaded block 202 compress the protrusion 204. The compressed protrusion 204 drives the guide plate 41 to move. The moving guide plate 41 slides within the groove 42, guiding the moving protrusion 204. The moving guide plate 41 then drives the connecting rod 205 and the spring 43 to move. The moving connecting rod 205 drives the blade body 206 to compress the outer wall of the puncture needle body 103, compressing the moving spring 43. Finally, the second threaded block 202 rotates... The blade 206 rotates around the puncture needle body 103, cutting off any excess portion of the puncture needle body 103 to prevent it from interfering with connected instruments. The cut portion is then removed from the second threaded block 202 and connecting tube 102, completing the adjustment of the puncture needle body 103. This ensures the length of the puncture needle body 103 matches the required puncture depth, preventing insufficient or excessive puncture depth, improving puncture effectiveness, and avoiding secondary injury to the patient. After the puncture needle body 103 is cut off, the second threaded block 202 is rotated in the opposite direction... The threaded sleeve 46 uses the second threaded block 202 and the thread to release the pressure on one side of the protrusion 204. Then, the compressed spring 43 drives the guide plate 41 to reset the protrusion 204, the connecting rod 205 and the blade body 206 for repeated use. The rotating second threaded block 202 drives the connecting plate 44 to rotate in the connecting groove 47. The connection between the second threaded block 202 and the fixed block 101 is increased by the connection plate 44 and the connecting groove 47. The puncture depth of the puncture needle body 103 is limited by the positioning plate 45. The sealing between the puncture needle body 103 and the fixed block 101 is ensured by the rubber block 49.

[0056] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A cap-type puncture needle auxiliary adjuster, comprising an adjuster assembly (1) and a breaking mechanism (2), characterized in that: The regulator assembly (1) includes a fixing block (101), a connecting tube (102), a puncture needle body (103), and a first threaded block (104). The breaking mechanism (2) includes a first threaded sleeve (201), a second threaded block (202), several pressure blocks (203), several protrusions (204), a connecting rod (205), and a blade (206). The outer wall of the puncture needle body (103) is slidably connected to the inner wall of the fixing block (101). The connecting tube (102) is located on the side of the fixing block (101) away from the puncture needle body (103). The first threaded block (104) is fixedly connected to one side of the fixing block (101). The inner wall of the first threaded sleeve (201) is threadedly connected to the outer wall of the first threaded block (104). Several pressure blocks (203) are close to the first threaded sleeve (204). 1) One side is hinged to the inner wall of the first threaded block (104), the second threaded block (202) is fixedly connected to the other side of the fixed block (101), a plurality of the protrusions (204) are slidably connected to the inner wall of the second threaded block (202), the connecting rod (205) is located on the side of the protrusion (204) away from the second threaded block (202), and the blade (206) is fixedly connected to the end of the connecting rod (205) away from the protrusion (204).

2. The cap-type puncture needle auxiliary adjuster according to claim 1, characterized in that: The inner wall of the second threaded block (202) is evenly provided with a sliding groove (42), and the inner wall of the sliding groove (42) is slidably connected to a guide plate (41). Several of the protrusions (204) are fixedly connected to the side of the guide plate (41) away from the connecting rod (205) on the side near the connecting rod (205).

3. The cap-type puncture needle auxiliary adjuster according to claim 2, characterized in that: One end of the connecting rod (205) away from the blade (206) is fixedly connected to the side of the guide plate (41) away from the protrusion (204). The outer side wall of the connecting rod (205) is slidably connected to the inner side wall of the second threaded block (202). A rubber block (49) is fixedly connected to the middle of the inner side wall of the fixing block (101). The outer side wall of the puncture needle body (103) is slidably connected to the inner side wall of the rubber block (49).

4. The cap-type puncture needle auxiliary adjuster according to claim 2, characterized in that: Springs (43) are fixedly connected to the inner sidewalls of the slide groove (42). The end of the spring (43) away from the blade body (206) is fixedly connected to the side of the guide plate (41) away from the protrusion (204).

5. The cap-type puncture needle auxiliary adjuster according to claim 1, characterized in that: The outer wall of the second threaded block (202) is threadedly connected to a second threaded sleeve (46), and the outer wall of the protrusion (204) is slidably connected to the inner wall of the second threaded sleeve (46).

6. The cap-type puncture needle auxiliary adjuster according to claim 1, characterized in that: The second threaded block (202) is fixedly connected to a connecting plate (44) on the side near the fixed block (101). The fixed block (101) is provided with a connecting groove (47) on the side near the second threaded block (202). The outer side wall of the connecting plate (44) is slidably connected to the inner side wall of the connecting groove (47).

7. The cap-type puncture needle auxiliary adjuster according to claim 1, characterized in that: The outer side wall of the first threaded block (104) is uniformly provided with through grooves (48), and the outer side walls of several pressure blocks (203) are respectively slidably connected to the inner side wall of the through grooves (48).

8. The cap-type puncture needle auxiliary adjuster according to claim 1, characterized in that: The first threaded block (104) is fixedly connected to a positioning plate (45) at one end away from the fixed block (101), and the outer side wall of the connecting pipe (102) is fixedly connected to the inner side wall of the second threaded block (202) on the side close to the fixed block (101).

9. A method for assisting in the adjustment of a cap-type puncture needle according to any one of claims 1-8, characterized in that, Includes the following steps: S1. Determine the puncture target location and required puncture depth based on the patient's physical signs, clinical symptoms and medical imaging data; S2. Select the puncture needle body (103) according to the required puncture depth, and move the puncture needle body (103) into the inside of the fixing block (101). Then, adjust the length of the puncture needle body (103) inserted into the fixing block (101) according to the puncture depth. S3. Rotate the first threaded sleeve (201) to squeeze the pressure block (203) using the first threaded block (104), and then clamp and fix the outer wall of the puncture needle body (103) through the squeezed pressure block (203); S4. Rotate the second threaded sleeve (46) to squeeze the protrusion (204) using the second threaded block (202), and then drive the connecting rod (205) and the blade (206) to move through the squeezed protrusion (204). The moving blade (206) squeezes the outer wall of the puncture needle body (103). S5. Rotate the second threaded block (202) to drive the blade (206) to rotate around the puncture needle body (103), and use the rotating blade (206) to cut and break off the excess part of the puncture needle body (103); S6. Remove the cut-off puncture needle body (103) from the second threaded block (202) and the connecting tube (102) to complete the adjustment of the puncture needle body (103).

10. The method for auxiliary adjustment of a cap-type puncture needle according to claim 9, characterized in that: In S5, when the rotating blade (206) penetrates into the interior of the puncture needle body (103) and causes a noticeable indentation on the surface of the puncture needle body (103), the excess part of the puncture needle body (103) is broken off by manually pressing it.

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