A model for practicing plantar blood sampling

Abstract

The utility model provides a kind of sole blood sampling practice model, belong to the technical research field of teaching model. For the current existing sole blood sampling practice model cannot judge whether the needle position is accurate, and only through sole massage mode to simulate the blood flow of newborn, the utility model is increased two detachable local blood sampling pieces on sole model, each local blood sampling piece is separated by separating piece to separate its internal accommodating cavity into first hyperemia cavity and second hyperemia cavity;When using, the side of local blood sampling piece with first hyperemia cavity is located in sole side edge, the side of local blood sampling piece with second hyperemia cavity is located in foot side;Practitioner extrudes fluid in second hyperemia cavity into first hyperemia cavity to simulate sole hyperemia, and then learner only makes fluid in local blood sampling piece flow out when pricking needle in sole lateral margin or sole medial margin, if needle position is incorrect, there will be no fluid flow, high degree of authenticity, good teaching effect.

Description

Technical Field

[0001] This utility model belongs to the field of teaching model technology research, specifically involving a foot blood sampling practice model. Background Technology

[0002] Newborn heel prick screening is a test performed by collecting blood from the heel of the infant 72 hours after birth. It is primarily for diseases with high incidence rates, early-stage asymptomatic but with positive laboratory indicators, allowing for diagnosis and treatment. The location of the heel prick blood sample is crucial. Inexperienced medical staff may require multiple punctures, which can harm the newborn, lead to unnecessary infections, and result in false positives due to substandard blood samples. Therefore, there is an urgent need for a training device that facilitates learning and practice for medical staff on how to perform heel prick blood sampling, improving their proficiency, preventing incorrect needle placement, and enhancing their overall skill level.

[0003] Patent CN220604211U discloses a neonatal blood collection simulation device, comprising: a model body; a foot sleeve model for simulating the skin of a newborn's foot, fitted onto the model body; a blood collection cavity inside the foot sleeve model, containing fluid for simulating neonatal blood; and several detachable local blood collection sections on the foot sleeve model, connected to the blood collection cavity. These local blood collection sections include a heel blood collection section, a first plantar surface blood collection section, and a second plantar surface blood collection section. In use, the local blood collection sections are connected to the blood collection cavity via pipes, allowing the fluid in the blood collection cavity to flow to the local blood collection sections through these pipes. After a local blood collection section is used, it can be freely disassembled and replaced with a new one. Before disassembling and replacing a new local blood collection section, the fluid in the blood collection cavity must be emptied to allow for continuous teaching.

[0004] Since the actual location for foot blood sampling refers to the area where blood is collected from the inner or outer side of the newborn's heel, the heel blood sampling section provided by the above-mentioned technical solution is a single design that completely wraps around the heel of the model body. This means that when trainees practice pricking, fluid will flow out regardless of where the needle is inserted, making it impossible to determine the accuracy of the puncture. Furthermore, the above-mentioned technical solution can only simulate the blood flow of a newborn through foot massage. However, in actual newborn blood sampling, besides foot massage, medical personnel often hold the newborn's heel with their left hand, pinching the ankle with their left index and middle fingers; their right hand repeatedly pushes along the lower leg from top to bottom towards the sole to induce blood flow; then the left hand stabilizes the puncture site, and the right hand disinfects the local skin with alcohol; finally, the right hand holds the puncture needle and quickly inserts it using either a straight or oblique puncture method. The newborn blood sampling simulation device provided by the above-mentioned technical solution cannot simulate the blood flow to the sole during the repeated pushing motion by medical personnel, resulting in poor teaching effectiveness. Utility Model Content

[0005] The purpose of this invention is to overcome the problems of existing foot blood sampling training models, which cannot determine whether the needle insertion position is accurate and can only simulate the blood flow of newborns through foot massage.

[0006] To achieve the above objectives, the technical approach adopted by this utility model is as follows: two detachably connected local blood collection patches are added to the foot model. Each local blood collection patch is divided into a first congestion chamber and a second congestion chamber by a separator. In use, the side of the local blood collection patch with the first congestion chamber is located at the lateral edge of the foot, and the side of the local blood collection patch with the second congestion chamber is located at the side of the foot model, i.e., at the ankle. In this way, the practitioner can repeatedly push along the upper end of the foot model towards the foot to squeeze the fluid in the second congestion chamber into the first congestion chamber to simulate foot congestion. Alternatively, the practitioner can simulate foot congestion after foot massage by using a simulated foot massage congestion patch set on the foot. Then, the practitioner can prick the local blood collection patch to practice foot blood collection. In this way, the fluid used to simulate blood will flow out of the local blood collection patch only when the practitioner pricks the lateral or medial edge of the foot. If the pricking position is incorrect, no fluid will flow out, resulting in high realism and good teaching effect.

[0007] Based on the above technical concept, the technical solution adopted by this utility model is as follows:

[0008] A foot blood sampling practice model includes a foot model, on which are provided:

[0009] Two local blood collection patches are symmetrically arranged on both sides of the foot model and are detachably connected to the foot model. Each local blood collection patch has a receiving cavity inside, and a partition is provided in the receiving cavity. The partition divides the receiving cavity into a first congestion cavity and a second congestion cavity. The first congestion cavity is located at the foot position of the foot model, and the second congestion cavity is located on the side of the foot model.

[0010] Further specifying the above technical solution, preferably, each local blood collection patch includes:

[0011] A sealed bag, with a receiving cavity located inside the sealed bag;

[0012] The connecting sleeve is fitted onto the outside of the sealed bag and can be detachably connected to the foot model via Velcro.

[0013] To further define the above technical solution, the separator is provided with multiple through holes, and each through hole is provided with a separator unit.

[0014] To further define the above technical solution, the dividing unit is a circular plate with a cross-shaped opening at its center.

[0015] To further define the above technical solution, the foot model is also equipped with two simulated foot massage blood-filling pads, each of which is connected to the first blood-filling cavity of the corresponding local blood collection pad. Beneficial effects

[0016] I. This utility model combines two local blood collection patches with a foot model. The two local blood collection patches are placed on both sides of the foot model, with one side of each patch located on the lateral edge of the foot and the other side located near the ankle on the foot model. In this way, the fluid used to simulate blood will flow out of the local blood collection patch only when the practitioner inserts a needle on the lateral or medial edge of the foot. If the needle is inserted incorrectly, no fluid will flow out. This method of practicing blood collection at the lateral edge of the foot provides a high degree of realism and good teaching effect.

[0017] II. This utility model, through the combined design of a local blood collection patch, a separator, and a separator unit, can divide the internal cavity of the local blood collection patch into a first congestion cavity and a second congestion cavity. In use, the practitioner can squeeze the fluid in the second congestion cavity into the first congestion cavity, so that the practitioner can repeatedly push along the upper end of the foot model towards the sole of the foot to squeeze the fluid in the second congestion cavity into the first congestion cavity, thereby simulating congestion at the lateral edge of the sole. Thus, when the learner practices needle insertion on the side of the local blood collection patch with the first congestion cavity, fluid will flow out, realizing blood collection practice at the lateral edge of the sole of the foot. The realism is high and the teaching effect is good.

[0018] Third, the dividing unit provided by this utility model can also be a circular plate with a cross-shaped opening in the center. When the practitioner repeatedly pushes the cross-shaped opening along the upper end of the foot model towards the sole of the foot to simulate the practice of foot congestion, the fluid in the second blood collection chamber can more easily enter the first congestion chamber through the cross-shaped opening, so that the practitioner can practice needle insertion. When not practicing, the second blood collection chamber is not squeezed. At this time, the fluid in the second blood collection chamber is blocked by the dividing plate and will not enter the first congestion chamber through the cross-shaped opening, ensuring the normal use of the local blood collection plate.

[0019] Fourth, the second blood collection chamber provided by this utility model is pre-filled with a large amount of fluid for simulating blood. After the trainee has practiced a needle prick once, the fluid can be repeatedly pushed from the top of the foot model to the sole of the foot to practice foot blood collection until all the fluid in the second blood collection chamber is used up. Then, a new local blood collection patch can be replaced, which reduces the frequency of local blood collection patch replacement and lowers teaching costs.

[0020] V. The local blood collection patch provided by this utility model includes a sealed bag and a connecting sleeve fitted onto the sealed bag. The materials are simple, the manufacturing process is convenient, and the overall cost of use is low. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a foot blood collection practice model proposed in Embodiment 1 of this utility model;

[0023] Figure 2 for Figure 1 Left view of the device shown;

[0024] Figure 3 This is a top view of a partial blood collection smear;

[0025] Figure 4 for Figure 3 A half-sectional view of the device shown;

[0026] Figure 5 A schematic diagram of the partition unit.

[0027] Figure 6 Photographs of existing plantar blood sampling sites.

[0028] The components include: 1. Local blood collection patch; 11. Sealing bag; 12. Connecting sleeve; 13. First congestion chamber; 14. Second congestion chamber; 2. Separator; 21. Separating unit; 3. Foot model; 4. Simulated foot massage congestion patch; 5. Connecting tube. Detailed Implementation

[0029] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Example

[0032] like Figure 1-5 As shown, this utility model provides a foot blood sampling practice model, including a foot model 3 and two local blood sampling patches 1 set on the foot model 3.

[0033] In actual use, one local blood collection patch 1 is located at the outer edge of the sole of the foot, and the other local blood collection patch 1 is located at the inner edge of the sole of the foot.

[0034] Specifically, the two local blood collection patches 1 have the same structure, both including: a square-shaped sealed bag 11 and a connecting sleeve 12 fitted on the outside of the sealed bag 11; wherein, the sealed bag 11 is made of plastic; and the connecting sleeve 12 is made of cotton cloth.

[0035] The connecting sleeve 12 is provided with a male Velcro patch, and correspondingly, the foot model 3 is provided with a female Velcro patch. In this way, the local blood collection patch 1 is connected to the female Velcro patch on the foot model 3 through the male Velcro patch, thereby realizing the detachable connection between the local blood collection patch 1 and the foot model 3.

[0036] A vertically arranged partition 2 is provided inside the sealed bag 11; the partition 2 divides the inside of the sealed bag 11 into a first congestion cavity 13 and a second congestion cavity 14; wherein, the second congestion cavity 14 is pre-filled with fluid for simulating blood; taking the local blood collection patch 1 located at the inner edge of the sole as an example, during installation, the end of the local blood collection patch 1 with the first congestion cavity 13 is located at the inner edge of the sole, and the end with the second congestion cavity 14 is located at the ankle of the sole model 3.

[0037] The separator 2 is a long strip-shaped structure, with multiple equally spaced through holes, and each through hole contains a separator unit 21. Specifically, the separator 2 is made of plastic and is integrally connected to the inner surface of the sealed bag 11.

[0038] The dividing unit 21 is a circular plastic plate with a cross-shaped opening in the center. The outer edge of the dividing unit 21 is heat-sealed to the dividing piece 2. Before the trainee practices foot blood collection, the trainee places their fingers on the outside of the second congestion cavity 14 and pushes repeatedly along the surface of the local blood collection piece 1 towards the direction where the first congestion cavity 13 is located. This causes the fluid in the second congestion cavity 14 to be squeezed under the pressure applied by the trainee's hand. The fluid in the second congestion cavity 14 can then enter the first congestion cavity 13 through the cross-shaped opening, simulating foot congestion. This allows medical staff to practice foot blood collection. In this way, the fluid used to simulate blood will only flow out of the local blood collection piece when the trainee inserts a needle at the outer or inner edge of the sole. If the needle is inserted incorrectly, no fluid will flow out. This method of practicing blood collection at the outer edge of the sole is highly realistic and has a good teaching effect.

[0039] In practical applications, a simulated foot massage congestion pad 4 can also be set at the center of the foot model;

[0040] Specifically, the simulated foot massage blood filling pad 4 has a circular bag-like structure, and the simulated foot massage blood filling pad 4 is connected to the first blood filling cavity 13 of the local blood collection pads 1 located on both sides of it through the connecting tube 5; the simulated foot massage blood filling pad 4 is pre-filled with fluid for simulating blood.

[0041] One end of the connecting tube 5 is fixedly connected to the simulated foot massage pad 4, and the connecting tube 5 communicates with the interior of the simulated foot massage pad 4. The other end of the connecting tube 5 is provided with a partition plate. Correspondingly, the local blood collection pad 1 is provided with a groove connected to the connecting tube 5 on the side of the foot model 3 near the center of the foot. A sealing ring is provided in the groove so that the end of the connecting tube 5 with the partition plate can be inserted into the local blood collection pad 1, so that the connecting tube 5 communicates with the first congestion cavity 13.

[0042] In this way, when in use, the practitioner can squeeze the massage simulation foot massage pad 4 to squeeze the fluid inside the massage simulation foot massage pad 4 into the connecting tube 5. Then, the partition at the end of the connecting tube 5 will break under the pressure of the fluid, so that the fluid inside the massage simulation foot massage pad 4 enters the first blood filling chamber 13 through the connecting tube 5, so that the practitioner can perform foot blood collection.

[0043] Application examples:

[0044] Step 1: Fix the two local blood collection patches 1 to both sides of the foot model 3 with Velcro, and the first congestion cavity 13 of each of the two local blood collection patches 1 is located at the outer edge of the foot model 3 and the inner edge of the foot, respectively.

[0045] Step 2: The trainee holds the ankle of the foot model 3 with one hand and pushes repeatedly along the side of the ankle of the foot model 3 towards the sole of the foot with the other hand. During this process, the fluid in the second congestion chamber 14 is squeezed and breaks through the partition unit 21 to enter the first congestion chamber 13, simulating foot congestion.

[0046] Step 3: The trainee begins the foot blood sampling exercise.

[0047] After all the fluid in the second blood collection chamber 14 has been used up, the local blood collection patch 1 can be removed and replaced with a new local blood collection patch 1 for the next practice. The operation is simple and convenient.

[0048] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

Claims

1. A foot blood sampling practice model, comprising a foot model (3), characterized in that, The foot model (3) is equipped with: Two local blood collection patches (1) are symmetrically arranged on both sides of the foot model (3) and are detachably connected to the foot model (3). Each local blood collection patch (1) has a receiving cavity inside, and a partition (2) is provided inside the receiving cavity. The partition (2) divides the receiving cavity into a first congestion cavity (13) and a second congestion cavity (14). The first congestion cavity (13) is located at the foot position of the foot model (3), and the second congestion cavity (14) is located on the side of the foot model (3).

2. The foot blood sampling training model according to claim 1, characterized in that, Each local blood collection patch (1) includes: A sealed bag (11) has a receiving cavity located inside it; The connecting sleeve (12) is fitted on the outside of the sealed bag (11) and is detachably connected to the foot model (3) by Velcro.

3. The foot blood sampling training model according to claim 2, characterized in that, The separator (2) has multiple through holes, and each through hole has a separator unit (21).

4. The foot blood sampling training model according to claim 3, characterized in that, The dividing unit (21) is a circular plate with a cross-shaped opening in the center.

5. The plantar blood sampling training model according to claim 1, characterized in that, The foot model (3) is also equipped with two simulated foot massage blood congestion pads (4), each of which is connected to the corresponding local blood collection pad (1).

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