Auxiliary device for abdominal puncture

Abstract

The auxiliary device comprises a base and a positioning cylinder, an electric telescopic rod is fixedly connected to the base, a hinge ring is connected to the electric telescopic rod in a sleeving mode, a connecting rod is fixedly connected to the hinge ring, a spherical chuck is fixedly connected to the other end of the connecting rod, a spherical connector is rotationally connected into the spherical chuck, and the spherical connector is fixedly connected to the other end of the connecting rod. A connecting seat is fixedly connected to one end of the spherical connector, a dovetail sliding groove is formed in the other side of the connecting seat, a threaded adjusting rod is rotationally installed in the dovetail sliding groove, a limiting sliding block is installed in the dovetail sliding groove in a sliding mode, and a threaded connecting sleeve block is installed in the limiting sliding block in an embedded mode. The threaded adjusting rod is rotated to drive the limiting sliding block to move, the distance between the limiting sliding block and the dovetail sliding block is adjusted, when the positioning cylinder is controlled to move downwards to drive the puncture needle to conduct puncture operation, after the puncture needle reaches the proper depth, the limiting sliding block can abut against the dovetail sliding block at the moment, and the dovetail sliding block is limited to move downwards continuously; and the puncture depth of the puncture needle is effectively controlled.

Description

Technical Field

[0001] The invention relates to an auxiliary device, in particular to an auxiliary device for abdominal puncture. Background Art

[0002] Abdominal puncture is a technique in which a puncture needle or catheter is inserted directly into the peritoneal cavity from the anterior abdominal wall to extract abdominal fluid to assist in the diagnosis and treatment of disease. In order to avoid damage to the abdominal organs, there are certain requirements for the angle and depth of the puncture needle after entering the abdominal cavity. During the abdominal puncture operation, auxiliary equipment is often required to assist the puncture and facilitate the operation of the abdominal puncture operation.

[0003] For example, a Chinese patent publication number CN118750120A discloses a peritoneal puncture auxiliary device for hepatology;

[0004] For example, a puncture positioning device disclosed in the Chinese patent publication No. CN219594756U;

[0005] First, the above-mentioned existing puncture auxiliary devices firstly adopt the method of limiting the position of the puncture needle to assist in limiting the angle of the puncture needle, which can better allow medical staff to control the puncture angle of the puncture needle. However, the puncture surgery also has certain requirements on the puncture depth, and the insertion depth of the puncture needle cannot be controlled;

[0006] Second, before the actual puncture operation is performed, auxiliary equipment such as ultrasound or CT is needed to determine the puncture position and puncture angle, and then adjust the angle of the puncture needle limiting mechanism. The puncture needle limiting mechanism is in a suspended state, and the puncture needle in the puncture needle limiting mechanism needs to be placed at the puncture position to ensure that the angle is adjusted so that its center is aligned with the patient's puncture position. In the process of adjusting the angle of the puncture needle limiting mechanism, the puncture needle is likely to poke the patient. Summary of the invention

[0007] The object of the present invention is to provide an auxiliary device for abdominal puncture to solve the existing problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an auxiliary device for abdominal puncture, comprising a base and a positioning cylinder, wherein an electric telescopic rod is fixedly connected to the base, a hinge ring is sleeved on the electric telescopic rod, a connecting rod is fixedly connected to the hinge ring, a spherical chuck is fixedly connected to the other end of the connecting rod, a spherical connector is rotatably connected in the spherical chuck, one end of the spherical connector is fixedly connected to a connecting seat, a dovetail slot is provided on the other side of the connecting seat, a threaded adjustment rod is rotatably installed in the dovetail slot, a limited slider is slidably installed in the dovetail slot, a threaded connection sleeve is embedded in the limit slider, the threaded connection sleeve is threadedly matched with the limit slider, a dovetail slider is slidably installed in the dovetail slot and above the limit slider, a positioning cylinder is fixedly connected to one end of the dovetail slider, a plug-in through hole is provided in the positioning cylinder, a laser pen is plugged in the plug-in through hole, a second threaded sleeve is embedded in the positioning cylinder, and a second fixing bolt is threadedly installed in the second threaded sleeve.

[0009] Preferably, a placement tray is fixedly connected to the electric telescopic rod, and a hinge slot is fixedly connected to the electric telescopic rod near the upper end, the hinge slot cooperates with the hinge ring, a first threaded sleeve is embedded in the hinge ring, and the first threaded sleeve is threadably matched with the first fixing bolt.

[0010] Preferably, a thread groove is formed on the connecting rod, an extrusion nut is threadedly mounted on the thread groove, and the extrusion nut cooperates with the spherical chuck.

[0011] Preferably, a transparent observation window is embedded in the front of the connecting seat, and a scale is engraved on the front of the transparent observation window. A limiting groove is provided in the connecting seat, and a limiting pin is slidably installed in the limiting groove.

[0012] Preferably, a spring pad is fixedly connected to the limit pin, a return spring is sleeved on the limit pin, and a pull ring is fixedly connected to one end of the limit pin.

[0013] Preferably, a limiting hole is provided on one side of the dovetail slider, the limiting hole cooperates with the limiting pin, and an avoidance hole is provided on the dovetail slider.

[0014] Preferably, the front and rear surfaces of the positioning tube are fixedly connected with pressing handles, and the outer wall of the positioning tube is symmetrically fixedly connected with a plurality of laser reflective stickers in the upper and lower parts.

[0015] Preferably, a conical ring is fixedly connected to the outer wall of the laser pen, and the conical ring cooperates with the plug-in through hole.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By rotating the threaded adjustment rod to drive the limit slider to move, adjust the distance between the limit slider and the dovetail slider. When the positioning cylinder is controlled to move downward to drive the puncture needle for puncture, when the puncture needle reaches the appropriate depth, the limit slider will resist the dovetail slider and limit the dovetail slider from moving further downward, thereby effectively controlling the puncture depth of the puncture needle.

[0018] 2. By placing the laser pen inside the plug-in through hole, the laser pen can be started to emit laser, replacing the original puncture needle, guiding the center of the positioning cylinder to align with the patient's puncture position. Compared with the existing device, it can effectively avoid the problem of the puncture needle accidentally piercing other parts of the patient when adjusting the position of the positioning cylinder.

[0019] 3. The limit pin and the limit hole cooperate with each other to fix the dovetail slider inside the dovetail slide groove. Firstly, it can prevent the positioning cylinder from naturally falling and inserting into the patient's body when the positioning cylinder clamps the puncture needle. Secondly, it limits the initial position of the dovetail slider in the dovetail slide groove, which is convenient for adjusting the distance between the limit slider and the dovetail slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a front view of the present invention;

[0022] Figure 3 It is a schematic diagram of the base structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the connecting rod structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the connecting seat of the present invention;

[0025] Figure 6 A cross-sectional view of the connection seat of the present invention;

[0026] Figure 7 It is a schematic diagram of the positioning tube structure of the present invention;

[0027] Figure 8 It is a schematic diagram of the structure of the laser pen of the present invention;

[0028] Fig. 9 For the present invention Figure 1 Enlarged view of point A in the middle.

[0029] In the figure: 1, base; 101, electric telescopic rod; 102, tray placement; 103, hinge slot; 2, connecting rod; 201, hinge ring; 202, first threaded sleeve; 203, first fixing bolt; 204, threaded groove; 205, extrusion nut; 206, spherical chuck; 3, connecting seat; 301, spherical connector; 302, transparent observation window; 304, dovetail slide; 305, threaded adjustment rod; 306, limit Slider; 307, threaded connection sleeve; 4, limiting groove; 401, limiting pin; 402, spring pad; 403, return spring; 404, pull ring; 5, positioning cylinder; 501, plug-in through hole; 502, laser reflective sticker; 503, pressing handle; 504, second threaded sleeve; 505, second fixing bolt; 506, dovetail slider; 507, limiting hole; 508, avoidance hole; 6, laser pen; 601, conical collar. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] like Figure 1-9 As shown, the present invention has the following specific embodiments.

[0032] Example 1

[0033] An auxiliary device for abdominal puncture, including a base 1 and a positioning tube 5, wherein an electric telescopic rod 101 is fixedly connected to the base 1, a hinge ring 201 is sleeved on the electric telescopic rod 101, a connecting rod 2 is fixedly connected to the hinge ring 201, a spherical chuck 206 is fixedly connected to the other end of the connecting rod 2, a spherical connector 301 is rotatably connected in the spherical chuck 206, a connecting seat 3 is fixedly connected to one end of the spherical connector 301, a dovetail groove 304 is provided on the other side of the connecting seat 3, a threaded adjustment rod 305 is rotatably installed in the dovetail groove 304, and a threaded adjustment rod 305 is slidably installed in the dovetail groove 304. A limit slider 306 is installed, a threaded connection sleeve 307 is embedded in the limit slider 306, the threaded connection sleeve 307 is threadedly matched with the limit slider 306, a dovetail slider 506 is slidably installed in the dovetail groove 304 and above the limit slider 306, one end of the dovetail slider 506 is fixedly connected to a positioning cylinder 5, a plug-in through hole 501 is opened in the positioning cylinder 5, a laser pen 6 is plugged in the plug-in through hole 501, a second threaded sleeve 504 is embedded in the positioning cylinder 5, and a second fixing bolt 505 is threadedly installed in the second threaded sleeve 504.

[0034] In this embodiment, the spherical clamp 206 is rotatably connected with the spherical connector 301 to rotatably connect the connecting seat 3 and the connecting rod 2. At the same time, the spherical connection can be used to make the connecting seat 3 rotate in any direction relative to the connecting rod 2. The rotation of the connecting seat 3 can drive the positioning tube 5 to rotate synchronously. The laser pen 6 is plugged into the positioning tube 5. Starting the laser pen 6 can emit a laser to replace the original puncture needle, guide the center of the positioning tube 5 to align with the patient's puncture position, thereby avoiding the misalignment of the center position of the positioning tube 5 and the puncture point after the angle of the positioning tube 5 is adjusted. Then the laser pen 6 can be pulled out and the puncture needle can be inserted into the plug-in through hole 501. A rubber pad is provided at the end of the second fixing bolt 505. Rotating the second fixing bolt 505 can drive the rubber pad to move, and then the rubber pad is used to clamp and fix the puncture needle so that the puncture needle is fixed inside the plug-in through hole 501. The dovetail slider 506 is slidably installed in the swallowtail slider. The tail slide groove 304 is inside, thereby limiting the positioning cylinder 5 to move only along the dovetail slide groove 304, the threaded adjustment rod 305 is threadedly matched with the limit slider 306, and then rotating the threaded adjustment rod 305 can drive the limit slider 306 to move, adjust the position of the limit slider 306, and the limit slider 306 will interfere with the dovetail slider 506 to limit the stroke of the dovetail slider 506. During the puncture process, the medical staff needs to press the positioning cylinder 5 downward, and the downward movement of the positioning cylinder 5 will drive the puncture needle to pierce the patient's abdominal cavity. At the same time, the downward movement of the positioning cylinder 5 will drive the dovetail slider 506 to move downward, and during the downward movement of the dovetail slider 506, the limit slider 306 will block the dovetail slider 506 from continuing to move downward, and limit the positioning cylinder 5 from continuing to drive the puncture needle downward to control the puncture depth, control the puncture depth of the puncture needle, and at the same time, the positioning cylinder 5 is used to manually control the movement of the puncture needle downward, and the puncture operation can be stopped in time through the feedback of the puncture process.

[0035] Example 2

[0036] like Figure 1 , 3 As shown in , 4 and 5, a placement tray 102 is fixedly connected to the electric telescopic rod 101, and a hinge slot 103 is fixedly connected to the electric telescopic rod 101 near the upper end. The hinge slot 103 cooperates with the hinge ring 201. A first threaded sleeve 202 is embedded in the hinge ring 201. The first threaded sleeve 202 is threadedly matched with the first fixing bolt 203. A threaded groove 204 is opened on the connecting rod 2, and an extrusion nut 205 is threadedly installed on the threaded groove 204. The extrusion nut 205 cooperates with the spherical chuck 206.

[0037] In this embodiment, the remaining medical instruments can be placed by placing the tray 102 to avoid that the remaining surgical instruments have no place to be placed after the base 1 occupies the operating table. The first fixing bolt 203 is threadedly installed in the first threaded sleeve block 202. After tightening the first fixing bolt 203, its end will contact the surface of the hinge slot 103, and the hinge ring 201 will be fixed on the hinge slot 103 by friction, limiting the rotation of the hinge ring 201, so that the angle of the connecting rod 2 is fixed, and the extrusion nut 205 and the spherical chuck 206 cooperate with each other. When the extrusion nut 205 is rotated, the end of the extrusion nut 205 is close to the spherical chuck 206, which will cause the claws of the spherical chuck 206 to retract, thereby clamping and fixing the spherical connector 301, limiting the rotation of the spherical connector 301, and then fixing the angle of the connecting seat 3.

[0038] Example 3

[0039] like Figure 1 , 5 As shown in , 6, 7, and 8, a transparent observation window 302 is embedded in the front of the connecting seat 3, and a scale is engraved on the front of the transparent observation window 302. A limiting groove 4 is provided in the connecting seat 3, and a limiting pin 401 is slidably installed in the limiting groove 4. A spring pad 402 is fixedly connected to the limiting pin 401, and a return spring 403 is sleeved on the limiting pin 401. A pull ring 404 is fixedly connected to one end of the limiting pin 401, and a limiting hole 507 is provided on one side of the dovetail slider 506. The limiting hole 507 cooperates with the limiting pin 401, and an avoidance hole 508 is provided on the dovetail slider 506. Pressing handles 503 are fixedly connected to the front and back of the positioning cylinder 5, and a plurality of laser reflective stickers 502 are symmetrically fixedly connected to the outer wall of the positioning cylinder 5. A conical ring 601 is fixedly connected to the outer wall of the laser pen 6, and the conical ring 601 cooperates with the plug-in through hole 501.

[0040] In this embodiment, the position of the limit slider 306 can be intuitively understood through the transparent observation window 302 and the scale engraved on the front. The return spring 403 can provide a certain thrust for the spring pad 402. The spring pad 402 is subjected to the thrust and drives the limit pin 401 to be inserted into the limit hole 507, thereby fixing the dovetail slider 506 inside the dovetail slot 304, limiting the upward and downward movement of the positioning cylinder 5 relative to the connecting seat 3. Firstly, it can prevent the positioning cylinder 5 from naturally falling and inserting into the patient's body when the positioning cylinder 5 clamps and fixes the puncture needle. Secondly, it limits the initial position of the dovetail slider 506 in the dovetail slot 304, which is convenient for adjusting the limit slider 306 and the dovetail slider 506. The spacing, and the downward movement stroke of the positioning cylinder 5, the insertion depth of the puncture needle, the avoidance hole 508 can avoid the interference between the dovetail slider 506 and the threaded adjustment rod 305, and the pressing handle 503 makes it easier for the operator to control the up and down movement of the positioning cylinder 5. When adjusting the angle of the positioning cylinder 5, a spirit level is often used to assist in angle adjustment. The light curtain laser reflective sticker 502 emitted by the spirit level will reflect, thereby assisting the operator to adjust the angle of the positioning cylinder 5. The conical collar 601 can firstly prevent the laser pen 6 from passing through the plug-in through hole 501, and secondly, it can make the laser pen 6 located at the center of the plug-in through hole 501, so that the laser emitted by the laser pen 6 represents the extension of the center point of the plug-in through hole 501.

[0041] The working principle and use process of the present invention are as follows: when using, the device needs to be placed on the patient's side, and the electric telescopic rod 101 can be started to drive the connecting rod 2 to move upward. The movement of the connecting rod 2 can drive the connecting seat 3 and the positioning cylinder 5 to move, and then adjust the positioning cylinder 5 to a suitable height. The level meter assists in angle adjustment to make the positioning cylinder 5 tilt at a suitable angle, tighten the extrusion nut 205 to squeeze the spherical clamp 206, clamp the spherical connector 301 inside the limiting slider 306, fix the angle of the connecting seat 3 and the positioning cylinder 5, insert the laser pen 6 into the plug-in through hole 501, start the laser pen 6 to emit laser, use the laser to replace the puncture needle, make the center of the plug-in through hole 501 point to the patient's puncture point, and then remove the laser pen 6. The puncture needle is inserted into the plug-in through hole 501, and the second fixing bolt 505 is tightened to fix the puncture needle in the plug-in through hole 501. The threaded adjustment rod 305 is rotated to drive the limit slider 306 to move, and the distance between the limit slider 306 and the dovetail slider 506, as well as the insertion depth of the puncture needle, is adjusted. Before the puncture operation, it is necessary to use the pull ring 404 to drive the limit pin 401 to move out of the limit hole 507 to release the restriction on the dovetail slider 506. At this time, the positioning cylinder 5 can be controlled to drive the puncture needle to move downward and perform a puncture operation on the patient's abdominal cavity. When the puncture needle reaches the appropriate depth, the limit slider 306 will resist the dovetail slider 506, limiting the dovetail slider 506 from continuing to move downward, thereby preventing the positioning cylinder 5 from continuing to drive the puncture needle downward.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for abdominal puncture, comprising a base (1) and a positioning tube (5), wherein an electric telescopic rod (101) is fixedly connected to the base (1), characterized in that: The electric telescopic rod (101) is sleeved with a hinge ring (201), the hinge ring (201) is fixedly connected with a connecting rod (2), the other end of the connecting rod (2) is fixedly connected with a spherical chuck (206), a spherical connector (301) is rotatably connected inside the spherical chuck (206), one end of the spherical connector (301) is fixedly connected with a connecting seat (3), the other side of the connecting seat (3) is provided with a dovetail groove (304), a threaded adjustment rod (305) is rotatably installed in the dovetail groove (304), a limit slider (306) is slidably installed in the dovetail groove (304), and the limit slider (306) ) is embedded with a threaded connection sleeve (307), the threaded connection sleeve (307) is threadedly matched with the limiting slider (306), a dovetail slider (506) is slidably installed in the dovetail groove (304) and above the limiting slider (306), one end of the dovetail slider (506) is fixedly connected to a positioning cylinder (5), a plug-in through hole (501) is provided in the positioning cylinder (5), a laser pen (6) is plugged into the plug-in through hole (501), a second threaded sleeve (504) is embedded with the positioning cylinder (5), and a second fixing bolt (505) is threadedly installed in the second threaded sleeve (504).

2. The auxiliary device for abdominal puncture according to claim 1, characterized in that: A placement tray (102) is fixedly connected to the electric telescopic rod (101), a hinge slot (103) is fixedly connected to the electric telescopic rod (101) near the upper end, the hinge slot (103) and the hinge ring (201) cooperate with each other, a first threaded sleeve (202) is embedded in the hinge ring (201), and the first threaded sleeve (202) is threadedly matched with a first fixing bolt (203).

3. The auxiliary device for abdominal puncture according to claim 1, characterized in that: The connecting rod (2) is provided with a thread groove (204), and a squeeze nut (205) is threadedly mounted on the thread groove (204), and the squeeze nut (205) cooperates with a spherical chuck (206).

4. The auxiliary device for abdominal puncture according to claim 1, characterized in that: A transparent observation window (302) is embedded and installed on the front of the connection seat (3), and a scale is engraved on the front of the transparent observation window (302). A limit groove (4) is provided in the connection seat (3), and a limit pin (401) is slidably installed in the limit groove (4).

5. The auxiliary device for abdominal puncture according to claim 4, characterized in that: A spring pad (402) is fixedly connected to the limit pin (401), a return spring (403) is sleeved on the limit pin (401), and a pull ring (404) is fixedly connected to one end of the limit pin (401).

6. The auxiliary device for abdominal puncture according to claim 4, characterized in that: A limiting hole (507) is provided on one side of the dovetail slider (506), the limiting hole (507) cooperates with the limiting pin (401), and an avoidance hole (508) is provided on the dovetail slider (506).

7. The auxiliary device for abdominal puncture according to claim 1, characterized in that: The front and rear surfaces of the positioning tube (5) are fixedly connected with pressing handles (503), and the outer wall of the positioning tube (5) is symmetrically fixedly connected with a plurality of laser reflective stickers (502) on the upper and lower sides.

8. The auxiliary device for abdominal puncture according to claim 1, characterized in that: A conical collar (601) is fixedly connected to the outer wall of the laser pen (6), and the conical collar (601) and the plug-in through hole (501) cooperate with each other.

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