Femoral vein puncture training model
By introducing pressure relief valves and throttle valves into the femoral venous puncture training model to simulate blood flow characteristics, and combining the design of bionic meat blocks and silicone tubes, the problem that existing models cannot effectively simulate femoral artery and venous blood flow is solved, improving the accuracy and safety of puncture training.
Patent Information
- Application Number
- CN202521530336.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-22
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2035-07-22
AI Technical Summary
The existing femoral venous puncture training model cannot effectively simulate the blood flow characteristics of the femoral artery and vein, making it difficult for beginners to accurately master puncture techniques during practice and lack of feedback on operational errors.
A femoral venous puncture training model was designed to simulate the blood flow characteristics of the femoral artery and vein by setting a pressure relief valve and throttle valve, and introduce touch training in the bionic meat block. The discharge hole feedback operation errors were used to combine the structure of the bionic meat block and silicone tube to simulate the real puncture feeling.
Effectively simulates the blood flow characteristics of the femoral artery and vein, provides feedback on operating errors, improves the accuracy and safety of punctures of practitioners, and reduces replacement and maintenance costs.
Smart Images
Figure CN223284688U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical teaching appliances, in particular to a femoral vein puncture training model. Background Art
[0002] Femoral vein puncture is an important medical technique that dates back to the mid-19th century, when it was primarily used for bloodletting. With the continuous advancement of medical technology, it has gradually developed into a common medical technique and is widely used in clinical practice. This technique involves puncturing the femoral vein to collect blood, perform infusions, or insert catheters. It is suitable for various situations requiring blood collection, infusion, or inserting catheters, such as clinical diagnosis, hemodialysis, emergency treatment, surgery, and intensive care. In clinical diagnosis, blood samples can be collected for various laboratory tests to assist doctors in diagnosing the patient's condition. During hemodialysis, it is one of the commonly used methods for establishing vascular access.
[0003] During femoral vein puncture, a sheath is typically installed in the thigh to access the femoral vein. The femoral vein is located medial to the femoral artery, with the femoral artery pulse serving as a positioning marker. The puncture site is typically approximately 2-3 cm below the inguinal ligament and 0.5-1 cm medial to the femoral artery. The needle tip is beveled upward, and the needle is inserted at a 30-45° angle to the skin. Aspiration is performed while the needle is inserted. Dark red blood returning to the needle indicates the needle has entered the femoral vein, while bright red blood returning to the needle indicates the needle has entered the artery.
[0004] For beginners of femoral vein puncture, a lot of in vitro practice is generally required to practice the operation mode and operation process of interventional surgery through simulation models. Based on this, the present invention proposes a training model that can facilitate operators to practice femoral vein puncture. Utility Model Content
[0005] The purpose of the utility model is to provide a femoral vein puncture training model, which can facilitate operators to practice femoral vein puncture.
[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:
[0007] A femoral vein puncture training model comprises a model body, a first circulation pump, a second circulation pump and a water tank. A mounting groove is provided on the upper side of the model body, a bionic meat block is installed in the mounting groove, a first silicone tube and a second silicone tube are installed in the bionic meat block, the first circulation pump and the second circulation pump are both installed in the water tank, a water outlet end of the first circulation pump is connected to one end of the first silicone tube, and the other end of the first silicone tube is connected to the water tank, a throttle valve is provided between the water outlet end of the first circulation pump and the first silicone tube, the water outlet end of the second circulation pump is connected to one end of the second silicone tube, and the other end of the second silicone tube is connected to the water tank, and a pressure relief valve is provided at the connection with the water tank; a discharge hole connected to the bottom of the mounting groove is provided on one side of the model body.
[0008] A further technical solution is that a first joint and a second joint are respectively provided at both ends of the first silicone tube, the first joint is connected to the water outlet end of the first circulation pump through the first water outlet pipe, the second joint is connected to the water tank through the first water inlet pipe, and the throttle valve is installed on the first water outlet pipe; a third joint and a fourth joint are respectively provided at both ends of the second silicone tube, the third joint is connected to the water outlet end of the second circulation pump through the second water outlet pipe, the fourth joint is connected to the water tank through the second water inlet pipe, and the pressure relief valve is installed at the connection between the second water inlet pipe and the water tank.
[0009] A further technical solution is that a first connecting groove and a second connecting groove are respectively provided on opposite sides of the installation groove on the upper side of the model body, the groove wall of the first connecting groove is connected to the groove wall of the installation groove through a first connecting hole, and the groove wall of the second connecting groove is connected to the groove wall of the installation groove through a second connecting hole, the end of the first water outlet pipe away from the first circulating pump is placed in the first connecting groove, and is connected to a fifth joint, and the first joint and the fifth joint are detachably connected; the end of the first water inlet pipe away from the water tank is placed in the second connecting groove, and is connected to a sixth joint, and the second joint and the sixth joint are detachably connected.
[0010] A further technical solution is that the first joint is provided with an insertion hole running through both sides, the aperture of the insertion hole gradually decreases from one end to the other end, the first water outlet pipe is connected to the end with the smaller aperture of the insertion hole, the outer diameter of the fifth joint gradually decreases from one end connected to the first water outlet pipe to the other end, and the fifth joint is inserted into the insertion hole.
[0011] A further technical solution is that the notch of the first connecting groove is provided with a first cover plate, and the notch of the second connecting groove is provided with a second cover plate.
[0012] A further technical solution is that a support ring is provided near the slot of the first connecting slot, a magnetic block is installed on the upper side of the support ring, and an adsorption block that cooperates with the magnetic block is provided near the edge of the lower side of the first cover plate.
[0013] A further technical solution is that a notch for uncovering the first cover plate is provided on the upper side of the model body at the edge of the first connecting groove.
[0014] A further technical solution is that the bionic meat block includes an upper block and a lower block that are fitted together, the lower side recess of the upper block is provided with a first half-tube groove and a second half-tube groove for installing the first silicone tube and the second silicone tube, and the upper side recess of the lower block is provided with a third half-tube groove and a fourth half-tube groove that cooperate with the first half-tube groove and the second half-tube groove respectively.
[0015] A further technical solution is that the groove walls of the third half-tube groove and the fourth half-tube groove are both protruded with a plurality of protrusions, and the groove bottoms of the third half-tube groove and the fourth half-tube groove are respectively provided with a first outflow hole and a second outflow hole connected to the lower side of the lower block; the groove bottom of the mounting groove is installed with a supporting net, and a gap is left between the supporting net and the groove bottom of the mounting groove.
[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting a pressure relief valve, the pressure in the first silicone tube can be increased, thereby simulating the femoral artery. When an operation error occurs during practice and the femoral artery is punctured, the blood in the femoral artery will flow to the bottom of the mounting groove and then be discharged through the discharge hole, thereby reminding the operator of femoral artery bleeding; 2. By setting a throttle valve, the water flow rate in the second silicone tube can be reduced, and the water pressure in the second silicone tube can be reduced, thereby simulating veins; 3. By setting a bionic meat block, the operator can be trained in the sense of touch during puncture. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is an overall schematic diagram of a femoral vein puncture training model of the present invention.
[0018] Figure 2 This is a partial cross-sectional view of a femoral vein puncture training model of the present invention.
[0019] Figure 3 This is a cross-sectional view of a bionic meat block of a femoral vein puncture training model of the present invention.
[0020] Figure 4 This is a schematic diagram of the installation of the first silicone tube and plastic film of a femoral vein puncture training model of the present invention.
[0021] Icons: 1-model body, 2-water tank, 3-installation slot, 4-bionic meat block, 5-first silicone tube, 6-second silicone tube, 7-discharge hole, 8-first water outlet pipe, 9-first water inlet pipe, 10-first joint, 11-second joint, 12-second water outlet pipe, 13-second water inlet pipe, 14-first connecting slot, 15-second connecting slot, 18-fifth joint, 19-sixth joint, 21-first cover plate, 22- Second cover plate, 23-support ring, 24-magnetic block, 25-notch, 26-upper block, 27-lower block, 28-first half-tube groove, 29-second half-tube groove, 30-third half-tube groove, 31-fourth half-tube groove, 32-bump, 33-first outflow hole, 34-second outflow hole, 35-support net, 36-collection box, 37-discharge pipe, 38-plastic film, 39-sealing strip, 40-pressing strip, 41-elastic ring. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0023] Figures 1 to 4 Shown is an embodiment of the present utility model.
[0024] Example 1:
[0025] A femoral vein puncture training model includes a model body 1, a first circulating pump, a second circulating pump and a water tank 2. A mounting groove 3 is provided on the upper side of the model body 1, a bionic meat block 4 is installed in the mounting groove 3, a first silicone tube 5 and a second silicone tube 6 are installed in the bionic meat block 4, the first circulating pump and the second circulating pump are both installed in the water tank 2, the water outlet end of the first circulating pump is connected to one end of the first silicone tube 5, the other end of the first silicone tube 5 is connected to the water tank 2, a throttle valve is provided between the water outlet end of the first circulating pump and the first silicone tube 5, the water outlet end of the second circulating pump is connected to one end of the second silicone tube 6, the other end of the second silicone tube 6 is connected to the water tank 2, and a pressure relief valve is provided at the connection with the water tank 2; a discharge hole 7 connected to the bottom of the mounting groove 3 is provided on one side of the model body 1. By providing a pressure relief valve, the pressure within the first silicone tube 5 can be increased, simulating the femoral artery. If the femoral artery is punctured during practice due to an operator error, blood from the femoral artery will flow to the bottom of the mounting groove 3 and then be discharged through the discharge hole 7, or sprayed out from the puncture point, thus reminding the operator of femoral artery bleeding. By providing a throttle valve, the water flow rate and pressure within the second silicone tube 6 can be reduced, thus simulating a vein. The provision of the bionic meat block 4 can train the operator's tactile sense during puncture.
[0026] The first silicone tube 5 is provided with a first joint 10 and a second joint 11 at both ends. The first joint 10 is connected to the water outlet of the first circulation pump via the first water outlet pipe 8, and the second joint 11 is connected to the water tank 2 via the first water inlet pipe 9. A throttle valve is installed on the first water outlet pipe 8. The second silicone tube 6 is provided with a third joint and a fourth joint at both ends. The third joint is connected to the water outlet of the second circulation pump via the second water outlet pipe 12, and the fourth joint is connected to the water tank 2 via the second water inlet pipe 13. A pressure relief valve is installed at the connection between the second water inlet pipe 13 and the water tank 2. The first water inlet pipe 9, the first water outlet pipe 8, the second water inlet pipe 13, and the second water outlet pipe 12 are all made of silicone or rubber.
[0027] On the upper side of the model body 1, a first connecting groove 14 and a second connecting groove 15 are respectively provided on opposite sides of the mounting groove 3. The groove wall of the first connecting groove 14 is connected to the groove wall of the mounting groove 3 via a first connecting hole, and the groove wall of the second connecting groove 15 is connected to the groove wall of the mounting groove 3 via a second connecting hole. The end of the first water outlet pipe 8 away from the first circulating pump is placed in the first connecting groove 14 and is connected to a fifth joint 18. The first joint 10 and the fifth joint 18 are detachably connected. The end of the first water inlet pipe 9 away from the water tank 2 is placed in the second connecting groove 15 and is connected to a sixth joint 19. The second joint 11 and the sixth joint 19 are detachably connected. The provision of the first connecting groove 14 and the second connecting groove 15 facilitates the connection of the two ends of the first silicone tube 5 and the second silicone tube 6 within the first connecting groove 14 and the second connecting groove 15. The end of the second water outlet pipe 12 away from the second circulation pump is placed in the first connecting groove 14 and is connected to the seventh joint. The end of the second water inlet pipe 13 away from the water tank 2 is placed in the second connecting groove 15 and is connected to the eighth joint. The third joint and the primer joint are detachably connected, and the fourth joint and the eighth joint are detachably connected.
[0028] The first joint 10 is provided with an insertion hole that passes through both sides. The diameter of the insertion hole gradually decreases from one end to the other end. The first water outlet pipe 8 is connected to the end with the smaller diameter of the insertion hole. The outer diameter of the fifth joint 18 gradually decreases from the end connected to the first water outlet pipe 8 to the other end. The fifth joint 18 is inserted into the insertion hole. In this way, the fifth joint 18 can be directly inserted into the insertion hole of the first joint 10, and then the outer wall of the fifth joint 18 is tightly fitted with the hole wall of the insertion hole by squeezing the fifth joint 18. Materials such as rubber or silicone can be set at the fitting area to achieve sealing during the squeezing process. The other joints adopt the same structural design.
[0029] The opening of the first connecting groove 14 is provided with a first cover plate 21, and the opening of the second connecting groove 15 is provided with a second cover plate 22. The provision of the first and second cover plates 21, 22 shields the openings of the first and second connecting grooves 14, 15, preventing the joints from being exposed, improving the aesthetics of the entire model body 1, and protecting the joints from accidental damage.
[0030] A support ring 23 is provided near the opening of the first connecting slot 14. A magnetic block 24 is mounted on the upper side of the support ring 23. A suction block that cooperates with the magnetic block 24 is provided near the lower edge of the first cover plate 21. The support ring 23 allows the first cover plate 21 to be installed by simply aligning it with the opening of the first connecting slot 14. The support ring 23 then supports the first cover plate 21 in the opening of the first connecting slot 14, preventing it from falling further. This allows the first cover plate 21 to completely seal the opening of the first connecting slot 14. Furthermore, the magnetic block 24 and the suction block cooperate to secure the first cover plate 21 securely to the support ring 23.
[0031] The upper side of the model body 1 is recessed at the edge of the notch of the first connecting groove 14 to provide a notch 25 for uncovering the first cover 21. By providing the notch 25, when it is necessary to uncover the first cover 21, a hand can be inserted through the notch 25 to pick up the first cover 21.
[0032] Example 2:
[0033] Based on Example 1, the bionic meat block 4 includes an upper block 26 and a lower block 27 that fit together. The lower side of the upper block 26 is recessed with a first half-tube groove 28 and a second half-tube groove 29 for receiving the first and second silicone tubes 5 and 6, respectively. The upper side of the lower block 27 is recessed with a third half-tube groove 30 and a fourth half-tube groove 31 that mate with the first and second half-tube grooves 28 and 29, respectively. The coordination between the upper block 26 and the lower block 27 allows the upper block 26 to be removed and then replaced if the first and second silicone tubes 5 and 6 are no longer usable. After replacement, the upper block 26 can simply be replaced. Furthermore, since the upper block 26 is primarily subject to puncture during puncture training, even if the upper block 26 breaks, only the upper block 26 needs to be replaced, eliminating the need to replace the entire bionic meat block 4, thus reducing replacement and maintenance costs.
[0034] The walls of the third and fourth half-tube grooves 30 and 31 are each provided with a plurality of raised bumps 32. The bottoms of the third and fourth half-tube grooves 30 and 31 are respectively provided with a first outflow hole 33 and a second outflow hole 34, which communicate with the underside of the lower block 27. A support net 35 is mounted on the bottom of the mounting groove 3, with a gap between the support net 35 and the bottom of the mounting groove 3. The bumps 32 create gaps between the first and second silicone tubes 5 and 6 and the walls of the third and fourth half-tube grooves 30 and 31, respectively. When the first and second silicone tubes 5 and 6 are punctured, the liquid flowing out of the tubes can flow through these gaps to the first and second outflow holes 33 and 34, and then be discharged through the discharge hole 7. The support net 35 ensures that the liquid flowing out of the first and second outflow holes 33 and 34 is effectively collected and directed to the discharge hole 7.
[0035] A collection box 36 is provided on the outside of the model body 1. The discharge hole 7 is connected to the collection box 36 via a discharge tube 37. The collection box 36 and discharge tube 37 allow for the collection of liquid discharged from the discharge hole 7. Both the collection box 36 and the discharge tube 37 are made of transparent material, making it easy to observe the discharge speed and volume.
[0036] Example 3:
[0037] On the basis of the aforementioned embodiment, the outer wall of the first silicone tube 5 is fitted with a tubular plastic film 38, both ends of the plastic film 38 are fitted and sealed with the outer wall of the first silicone tube 5, and the opposite sides of the plastic film 38 along the length direction of the first silicone tube 5 are sealed and fitted with the surface of the first silicone tube 5, and the lower side of the first silicone tube 5 is provided with a through hole that passes through the inside and outside. Because the first silicone tube 5 simulates the femoral vein, during the femoral vein puncture, in addition to the complications easily caused by puncturing the femoral artery, it is also easy to cause complications due to directly penetrating the femoral vein. However, the current training model does not have a structure that can simulate the complications caused by femoral vein penetration. The present invention simulates the bleeding effect caused by femoral vein puncture by installing a plastic film 38 on the exterior of the first silicone tube 5. Specifically, when the first silicone tube 5 is operating normally, the first silicone tube 5, through the through hole, allows the liquid in the first silicone tube 5 to flow out partially between the first silicone tube 5 and the plastic film 38. Due to the sealing contact between the ends of the plastic film 38 and the outer wall of the first silicone tube 5, and the sealing contact between the opposite sides of the plastic film 38 and the surface of the first silicone tube 5, the leaked liquid is limited to the plastic film 38 and the lower half of the first silicone tube 5. If only the upper portion of the first silicone tube 5 and the upper portion of the plastic film 38 are punctured, the elasticity of the silicone tube will seal the punctured portion of the first silicone tube 5, preventing any leakage of liquid. When the trainee pierces the entire first silicone tube 5 during operation, the plastic film 38 will also be punctured, and the liquid in the first silicone tube 5 will flow out through the through hole and the damaged portion of the plastic film 38. The outflow rate thereof is limited by the throttle valve and will be different from the outflow rate of the second silicone tube 6 , so that it is possible to distinguish well whether the bleeding is from the femoral artery or the femoral vein penetrating bleeding.
[0038] Sealing strips 39 are provided on opposite sides of the surface of the first silicone tube 5. After the plastic film 38 is attached to the surface of the sealing strips 39, it is pressed tightly against the sealing strips 39 by the pressure strips 40. The sealing strips 39 and the pressure strips 40 cooperate to seal the plastic film 38 and the first silicone tube 5 on opposite sides, thereby preventing liquid from migrating to the upper portion of the first silicone tube 5 and the plastic film 38.
[0039] The outer walls of both ends of the first silicone tube 5 are recessed with annular grooves at the locations where they fit the ends of the sealing strip 39. The portion of the plastic film 38 located in the annular groove is compressed and fixed in the annular groove by an elastic ring 41. With the help of the annular groove and the elastic ring 41, the plastic film 38 and the end of the first silicone tube 5 can be sealed. At the same time, when the elastic ring 41 is fixed, it will fit the end of the sealing strip 39, which can also compress the contrast of the sealing strip 39 and prevent liquid from leaking from this location. With this structural setting, if the plastic film 38 is damaged, only the plastic film 38 needs to be replaced, and there is no need to replace the first silicone tube 5, which saves usage costs.
[0040] Although the present invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and implementations may be devised by those skilled in the art that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the present disclosure, the drawings, and the claims, various variations and modifications may be made to the components and / or layout of the subject combination arrangement. In addition to variations and modifications to the components and / or layout, other uses will also be apparent to those skilled in the art.
Claims
1. A femoral vein puncture training model, characterized in that: The invention comprises a model body (1), a first circulation pump, a second circulation pump and a water tank (2), wherein an installation groove (3) is provided on the upper side of the model body (1), a bionic meat block (4) is installed in the installation groove (3), a first silicone tube (5) and a second silicone tube (6) are installed in the bionic meat block (4), the first circulation pump and the second circulation pump are both installed in the water tank (2), the water outlet end of the first circulation pump is connected to one end of the first silicone tube (5), the other end of the first silicone tube (5) is connected to the water tank (2), a throttle valve is provided between the water outlet end of the first circulation pump and the first silicone tube (5), the water outlet end of the second circulation pump is connected to one end of the second silicone tube (6), the other end of the second silicone tube (6) is connected to the water tank (2), and a pressure relief valve is provided at the connection with the water tank (2); and a discharge hole (7) connected to the bottom of the installation groove (3) is provided on one side of the model body (1).
2. A femoral vein puncture training model according to claim 1, characterized in that: The first silicone tube (5) is provided with a first joint (10) and a second joint (11) at both ends, the first joint (10) being connected to the water outlet of the first circulation pump through a first water outlet pipe (8), the second joint (11) being connected to the water tank (2) through a first water inlet pipe (9), and the throttle valve being installed on the first water outlet pipe (8); the second silicone tube (6) is provided with a third joint and a fourth joint at both ends, the third joint being connected to the water outlet of the second circulation pump through a second water outlet pipe (12), the fourth joint being connected to the water tank (2) through a second water inlet pipe (13), and the pressure relief valve being installed at the connection between the second water inlet pipe (13) and the water tank (2).
3. A femoral vein puncture training model according to claim 2, characterized in that: A first connecting groove (14) and a second connecting groove (15) are respectively provided on opposite sides of the mounting groove (3) on the upper side of the model body (1); the groove wall of the first connecting groove (14) is connected to the groove wall of the mounting groove (3) through a first connecting hole; the groove wall of the second connecting groove (15) is connected to the groove wall of the mounting groove (3) through a second connecting hole; the end of the first water outlet pipe (8) away from the first circulation pump is placed in the first connecting groove (14) and is connected to a fifth joint (18); the first joint (10) and the fifth joint (18) are detachably connected; the end of the first water inlet pipe (9) away from the water tank (2) is placed in the second connecting groove (15) and is connected to a sixth joint (19); the second joint (11) and the sixth joint (19) are detachably connected.
4. A femoral vein puncture training model according to claim 3, characterized in that: The first joint (10) is provided with an insertion hole that passes through both sides, the first water outlet pipe (8) is connected to the insertion hole, and the fifth joint (18) is inserted into the insertion hole.
5. The femoral vein puncture training model according to claim 3, characterized in that: The notch of the first connecting groove (14) is provided with a first cover plate (21), and the notch of the second connecting groove (15) is provided with a second cover plate (22).
6. A femoral vein puncture training model according to claim 5, characterized in that: A support ring (23) is provided near the notch of the first connecting slot (14), a magnetic block (24) is installed on the upper side of the support ring (23), and an adsorption block matching the magnetic block (24) is provided near the edge of the lower side of the first cover plate (21).
7. The femoral vein puncture training model according to claim 5, characterized in that: A notch (25) for uncovering the first cover plate (21) is provided on the upper side of the model body (1) in a recessed manner at the edge of the notch of the first connecting groove (14).
8. The femoral vein puncture training model according to claim 1, characterized in that: The bionic meat block (4) comprises an upper block (26) and a lower block (27) which are bonded together. The lower side of the upper block (26) is recessed with a first half-tube groove (28) and a second half-tube groove (29) for mounting the first silicone tube (5) and the second silicone tube (6). The upper side of the lower block (27) is recessed with a third half-tube groove (30) and a fourth half-tube groove (31) which respectively cooperate with the first half-tube groove (28) and the second half-tube groove (29).
9. The femoral vein puncture training model according to claim 8, characterized in that: The groove walls of the third half-tube groove (30) and the fourth half-tube groove (31) are both provided with a plurality of protruding points (32), and the groove bottoms of the third half-tube groove (30) and the fourth half-tube groove (31) are respectively provided with a first outflow hole (33) and a second outflow hole (34) which are connected to the lower side of the lower block (27); the groove bottom of the installation groove (3) is provided with a support net (35), and a gap is left between the support net (35) and the groove bottom of the installation groove (3).