PICC partition catheterization caliper

Abstract

The utility model relates to the technical field of medical instruments, and discloses a PICC (Peripherally Inserted Central Catheter) partition catheterization caliper which is characterized in that a frame body I is connected with a caliper body in an inserting manner, a sliding groove I is formed in the frame body I, two sliding blocks I are arranged on the sliding groove I in a sliding manner, and partitions are arranged on the sliding blocks I; a shifting block is fixedly connected with the first sliding block through a second sliding block, and a second sliding groove is formed in the first frame body and connected with the second sliding block in a sliding mode. The first frame body is arranged on the caliper body, the second frame body is arranged on the first frame body, a two-way screw is arranged on the second frame body in a penetrating mode, fourth sliding blocks are symmetrically arranged on the two-way screw, the fourth sliding blocks are connected with the second frame body in a sliding mode, clamping plates are arranged on the fourth sliding blocks, and the clamping plates clamp the caliper body; the knob is arranged at one end of the bidirectional screw, and the other end of the bidirectional screw is provided with a first nut and a first limiting block. According to the device, the caliper is divided into three areas by using the partition according to a Dausen area catheterization method, so that the accuracy and difficulty during PICC catheterization are improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a PICC partition placement caliper. Background Technology

[0002] PICC placement generally refers to central venous catheterization via peripheral venous puncture. Peripherally inserted central venous catheterization involves placing the catheter through a peripheral vein, such as the basilic vein, median cubital vein, cephalic vein, or external jugular vein in the upper limb. During the placement process, healthcare professionals use a tape measure or flexible ruler to measure the length from the elbow crease to the armpit, determine the placement area based on the patient's arm length, and mark it with an oil-based pen as the pre-puncture area for the PICC catheter.

[0003] However, before insertion, the pre-puncture area is determined using a measuring tape and marked with an oil-based pen. Since PICC requires skin disinfection, the skin is typically disinfected three times with 2% chlorhexidine gluconate or three times with 75% alcohol, followed by three times with 1% povidone-iodine. This repeated skin disinfection makes the oil-based pen marks difficult to clearly identify, hindering accurate and rapid determination of the correct pre-insertion area, thus having certain limitations. To address these issues, we propose a PICC zone insertion caliper. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a PICC zoned tube placement caliper, which has the advantage of improving the accuracy of tube placement based on caliper readings, and solves the problem that the original device could not accurately and quickly determine the correct pre-placed tube area.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a PICC partitioning caliper, comprising a caliper body; graduation lines are set on the caliper body; a frame assembly is inserted into the caliper body, the frame assembly comprising: a frame body 1 inserted into the caliper body, the frame body 1 having a sliding groove 1, two sliders 1 slidably disposed on the sliding groove 1, and a partition on the sliders 1; a lever block is fixedly connected to the sliders 1 via sliders 2, the frame body 1 having a sliding groove 2 slidably connected to sliders 2; a frame body 2 disposed on the frame body 1, a bidirectional screw threaded through the frame body 2, sliders 4 symmetrically disposed on the bidirectional screw thread, sliders 4 slidably connected to the frame body 2, a clamping plate disposed on sliders 4, the clamping plate clamping the caliper body; a knob disposed at one end of the bidirectional screw thread, and a nut and a limiting block disposed at the other end of the bidirectional screw thread.

[0008] In some embodiments, the clamping plate and the slider are fixedly connected by fixing bolts.

[0009] In some embodiments, a rubber plate is inserted into the clamp.

[0010] In some embodiments, a stop is provided on the clamp plate via a rotating shaft, a nut is threaded onto the shaft, and a limit block is provided on the shaft.

[0011] In some embodiments, a slider three is symmetrically arranged on the top of the slider two, a sliding groove three is provided inside the toggle block, the slider three and the sliding groove three are slidably connected, and an insert block is provided at the bottom of the toggle block, the insert block and the sliding groove two are inserted into each other.

[0012] In some embodiments, the insert blocks are symmetrically distributed on the dial blocks.

[0013] In some embodiments, the outer wall of the knob is provided with external threads.

[0014] In some embodiments, the caliper body is a disposable cardboard.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a PICC partitioned pipe placement caliper, which has the following features:

[0017] Beneficial effects:

[0018] 1. This PICC zone placement caliper uses a caliper body with graduation lines. The caliper body is inserted into frame one, and a clamping component is set on frame two to fix the caliper body. A partition is set on frame one to divide the caliper body into three equal parts. The Dawson zone placement method is used to divide the caliper body into three areas, and the placement position is clearly defined according to the division of the area, thus improving the placement accuracy.

[0019] 2. This PICC partitioned tube placement caliper features an insertable rubber plate on the clamping plate and a rotatable stop block on the edge of the clamping plate. The stop block is fixed in position with a nut, facilitating the installation and removal of the rubber plate. Additionally, an insert block is provided on the lever to limit the partition and prevent the partition from shifting during caliper use, thus avoiding any impact on tube placement. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the frame component in this utility model;

[0022] Figure 3 This is a rear view structural diagram of the frame component in this utility model;

[0023] Figure 4 This is a cross-sectional structural diagram of the toggle assembly in this utility model;

[0024] Figure 5 This is a schematic diagram of the clamping plate assembly in this utility model.

[0025] In the picture:

[0026] 11. Caliper body; 12. Scale marks;

[0027] 2. Frame components; 21. Frame body one; 211. Slide groove one; 212. Slider one; 213. Partition; 22. Toggle block; 221. Slider two; 222. Slide groove two; 223. Slide groove three; 224. Slider three; 225. Insert block; 23. Frame body two; 231. Bidirectional screw; 232. Slider four; 233. Clamping plate; 24. Knob; 241. Nut one; 242. Limiting block one; 25. Fixing bolt; 26. Rubber plate; 261. Stop block; 262. Nut two; 263. Limiting block two. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0029] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0030] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] During the insertion of a catheter into a patient's arm, medical staff use a tape measure or soft ruler to measure the length from the elbow crease to the armpit, determine the insertion area based on the length of the patient's arm, and mark it with an oil-based pen as the pre-puncture area for the PICC catheter.

[0032] In related techniques, the pre-puncture area is determined using a measuring tape before insertion and marked with an oil-based pen. Since PICC requires skin disinfection, the skin is typically disinfected three times with 2% chlorhexidine gluconate or three times with 75% alcohol, followed by three times with 1% povidone-iodine. This repeated skin disinfection makes the oil-based pen marks difficult to clearly identify, hindering accurate and rapid determination of the correct pre-insertion area, thus presenting certain limitations.

[0033] To address some of the problems in related technologies, this application provides a PICC partitioned tube placement caliper. The caliper body 11 is inserted into the frame 21 along the slot on the frame 21. After the caliper body 11 is fully inserted into the frame 21, the outer wall of the caliper body 11 abuts against the outer wall of the frame 23. The user rotates the knob 24 clockwise, which controls the bidirectional screw 231 to rotate synchronously. The bidirectional screw 231 and the slider 232 are threadedly connected, and the slider 232 is slidably connected to the frame 23. Therefore, as the bidirectional screw 231 rotates, the slider 232 drives the clamping plate 233 to move in the opposite direction, and the clamping plate 233 clamps the caliper. For the part of the caliper body 11 without graduation lines, the user then turns the nut 241 clockwise. The nut 241 moves horizontally on the double-acting screw 231 until it abuts against the frame 23, thus fixing the double-acting screw 231 and the clamping plate 233, completing the clamping and fixing of the caliper body 11. Therefore, the caliper body 11 is fixed on the frame 21. The user then moves the lever 22 according to the specific numbers of the graduation lines 12 on the caliper body 11, controlling the slider 212 and the partition 213 to move horizontally to the two trisection positions of the partition 213 through the slider 221. Therefore, the part of the caliper body 11 with graduation lines 12 is divided into three equal positions.

[0034] This application is described below with reference to the accompanying drawings and specific embodiments:

[0035] Combination Figures 1-5This application provides a PICC partitioning caliper, including a caliper body 11; graduation lines 12 are disposed on the caliper body 11; a frame assembly 2 is inserted into the caliper body 11, the frame assembly 2 including: a frame 21 inserted into the caliper body 11, a sliding groove 211 disposed on the frame 211, two sliders 212 slidably disposed on the sliding groove 211, and a partition 213 disposed on the sliders 212; a lever 22 is fixedly connected to the sliders 212 via a second slider 221, and the frame 21... A second sliding groove 222 and a second slider 221 are slidably connected; a second frame 23 is disposed on the first frame 21, and a bidirectional screw 231 is disposed through the second frame 23. A fourth slider 232 is symmetrically disposed on the bidirectional screw 231, and the fourth slider 232 is slidably connected to the second frame 23. A clamping plate 233 is disposed on the fourth slider 232, and the clamping plate 233 clamps the caliper body 11; a knob 24 is disposed at one end of the bidirectional screw 231, and a nut 241 and a limiting block 242 are disposed at the other end of the bidirectional screw 231.

[0036] When the user needs to position a PICC line in the patient's arm, the caliper body 11 is inserted into the slot on frame 21. After the caliper body 11 is fully inserted into frame 21, the outer wall of the caliper body 11 abuts against the outer wall of frame 23. The user then rotates knob 24 clockwise, which controls the bidirectional screw 231 to rotate synchronously. The bidirectional screw 231 and slider 232 are threadedly connected, and slider 232 is slidably connected to frame 23. Therefore, as the bidirectional screw 231 rotates, slider 232 drives clamping plate 233 to move in the opposite direction. Clamping plate 233 holds the portion of the caliper body 11 without graduations. The user then turns nut 241 clockwise, causing nut 241 to move horizontally on the bidirectional screw 231 until it abuts against frame 23, thus fixing the bidirectional screw 231 and clamping plate 233, completing the clamping and fixing of the caliper body 11. Therefore, the caliper body 11 is... Fixed to frame 21, the user then moves the lever 22 according to the specific numbers on the scale line 12 on the caliper body 11, controlling the slider 212 and the partition 213 to move horizontally to the two trisection positions of the partition 213 via the slider 221. Therefore, the part of the caliper body 11 with the scale line 12 is divided into three equal positions. According to the Dawson area placement method, the part of the caliper body 11 with the scale line 12 is generally 45cm. The 15cm area near the elbow of the caliper body 11 is printed in red, which is the medial epicondyle. The 15cm area in the middle of the caliper is printed in green, which is the catheter insertion exit point. The 15cm area near the axilla is printed in yellow, which is the venous puncture point. The user places the entire device on the patient's upper arm. Through the division of the color areas, medical staff can intuitively see the insertion area and then perform PICC insertion according to the divided areas, which improves the accuracy of insertion and reduces the operation difficulty and time cost for medical staff.

[0037] In some embodiments, the clamping plate 233 and the slider 232 are fixedly connected by fixing bolts 25. Using fixing bolts 25 to fix the clamping plate 233 and the slider 232 allows users to quickly disassemble and assemble the clamping plate 233 when it needs to be repaired. The clamping plate 233 can be removed from the slider 232 with a screwdriver. The structure is simple and easy to use.

[0038] In some embodiments, a rubber plate 26 is inserted into the clamping plate 233. The rubber plate 26 is relatively soft, which prevents the clamping plate 233 from directly contacting the caliper body 11 during clamping and causing damage to the caliper body 11.

[0039] In some embodiments, a stop 261 is rotatably provided on the clamping plate 233 via a shaft, a nut 262 is threaded on the shaft, and a limit block 263 is provided on the shaft. During clamping, the rubber plate 26 will wear out and needs to be replaced after a long period of use. The user turns the second nut 262 counterclockwise to release the contact between the second nut 262 and the shaft connected to the outer wall of the clamping plate 233. The second nut 262 will not fall off due to the blocking of the second limit block 263. At this time, the user can manually control the stop block 261 to rotate, so that the rubber plate 26 is pulled out from the clamping plate 233. The new rubber plate 26 is then inserted into the clamping plate 233 along the slot on the clamping plate 233. The clamping surface of the rubber plate 26 is aligned with the edge of the outer wall of the clamping plate 233. The user turns the second nut 262 clockwise to make the second nut 262 move horizontally and abut against the stop block 261. The stop block 261 is fixed in position to block the rubber plate 26. The friction between the rubber plate 26 and the clamping plate 233 completes the fixation of the position of the rubber plate 26.

[0040] In some embodiments, a slider three 224 is symmetrically arranged on the top of the slider two 221, and a sliding groove three 223 is provided inside the toggle block 22. The slider three 224 and the sliding groove three 223 are slidably connected. An insert block 225 is provided at the bottom of the toggle block 22, and the insert block 225 is inserted into the sliding groove two 222. After the user moves the position of the partition 213, the user presses the toggle block 22. The toggle block 22 is slidably connected to the slider three 224 on the slider two 221 through the internal sliding groove three 223. As the toggle block 22 is pressed, the insert block 225 at the bottom of the toggle block 22 and the sliding groove two 222 are inserted, limiting the position of the toggle block 22 and the partition 213. Under the action of friction, the partition 213 will not easily move.

[0041] In some embodiments, the insert blocks 225 are symmetrically distributed on the push block 22. The insert blocks 225 are symmetrically arranged at the bottom of the push block 22, which increases the insertion area between the insert blocks 225 and the slide groove 222 and increases the friction.

[0042] In some embodiments, the outer wall of the knob 24 is provided with external threads. The external threads on the outer wall of the knob 24 provide a point of force application for the user, increase friction, and improve the accuracy of the user's control over the rotation of the knob 24.

[0043] In some embodiments, the caliper body 11 is made of disposable cardboard. Using disposable cardboard for the caliper body 11 facilitates coloring and area division, and is also cost-effective.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," and "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0045] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PICC partitioning caliper, comprising a caliper body (11); The scale lines (12) are set on the caliper body (11); Its features are: A frame assembly (2) is inserted into the caliper body (11), the frame assembly (2) comprising: A frame (21) is inserted into the caliper body (11). A slide groove (211) is provided on the frame (21). Two sliders (212) are slidably arranged on the slide groove (211). A partition (213) is provided on the slider (212). The push block (22) is fixedly connected to the slider one (212) via the second slider (221), and the frame one (21) is provided with a second sliding groove (222) and the second slider (221) are slidably connected; A second frame (23) is disposed on the first frame (21). A bidirectional screw (231) is disposed through the second frame (23). A fourth slider (232) is symmetrically disposed on the bidirectional screw (231). The fourth slider (232) is slidably connected to the second frame (23). A clamping plate (233) is disposed on the fourth slider (232). The clamping plate (233) holds the caliper body (11). A knob (24) is provided at one end of the bidirectional screw (231), and a nut (241) and a limiting block (242) are provided at the other end of the bidirectional screw (231).

2. A PICC partitioned pipe positioning caliper according to claim 1, characterized in that: The clamping plate (233) and the slider four (232) are fixedly connected by fixing bolts (25).

3. A PICC partitioned pipe positioning caliper according to claim 2, characterized in that: A rubber plate (26) is inserted into the clamp (233).

4. A PICC partitioned pipe positioning caliper according to claim 3, characterized in that: The clamping plate (233) is provided with a stop (261) that rotates through a shaft, and a nut (262) is threaded on the shaft, and a limit block (263) is provided on the shaft.

5. A PICC partitioned pipe positioning caliper according to claim 1, characterized in that: The top of the slider two (221) is symmetrically provided with slider three (224), the inside of the toggle block (22) is provided with slide groove three (223), the slider three (224) and the slide groove three (223) are slidably connected, the bottom of the toggle block (22) is provided with insert block (225), the insert block (225) and the slide groove two (222) are inserted into each other.

6. A PICC partitioned pipe positioning caliper according to claim 5, characterized in that: The insert (225) is symmetrically distributed on the push block (22).

7. A PICC partitioned pipe positioning caliper according to claim 1, characterized in that: The outer wall of the knob (24) is provided with external threads.

8. A PICC partitioned pipe positioning caliper according to claim 1, characterized in that: The caliper body (11) is made of disposable cardboard.

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