Foaming test device for detecting patent foramen ovale

Abstract

The utility model relates to the technical field of medical detection, in particular to a foaming test device for detecting patent foramen ovale. The fixing device is used for providing mounting and fixing positions for the two standard injectors and assisting a user in completing the foaming process; comprising a fixing table used for fixing a needle cylinder of an injector; the first pushing sliding block and the second pushing sliding block are used for fixing push rods of the two injectors respectively and driving the push rods of the two injectors to move linearly; the operation mechanism is used for a user to perform rotation operation in a circular track; the transmission mechanism is used for converting the rotation operation of a circular track of a user into linear advancing movement of the first pushing sliding block and the second pushing sliding block; the positive and negative changes of the linear advancing movement direction of the first pushing sliding block and the second pushing sliding block are consistent with the positive and negative changes of the direction of the circular track of the rotation operation of the user.

Description

Technical Field

[0001] The utility model relates to the technical field of medical detection, in particular to a foaming test device for detecting patent foramen ovale. Background Art

[0002] The transcranial Doppler bubble test (TCD bubble test) has a certain clinical value in diagnosing patent foramen ovale. Patent foramen ovale is a congenital heart structural abnormality. It is a disease caused by the failure of the heart channel that should close naturally after the baby is born to close. The foramen ovale is located between the left and right atria during the fetal period. It is used to conduct the mother's umbilical venous blood for fetal development. It should be completely closed 2 months after birth. Most patients will not have obvious symptoms due to the small amount of blood shunt in the heart. However, once the right atrium pressure exceeds the left atrium due to various reasons, such as strenuous exercise, coughing or diving, patent foramen ovale may cause obvious right-to-left abnormal shunt, leading to related clinical syndromes such as abnormal embolism, and symptoms such as unexplained headache, dizziness, dyspnea or limb weakness.

[0003] TCD combined with saline foaming test is an effective means of screening PFO and can be used as a means of screening the cause of unexplained ischemic stroke. The invention patent with publication number CN117504632A provides a convenient method for preparing an in vitro bubble suspension for TCD foaming test, which uses a medical tee, an indwelling needle and two syringes to mix the contrast fluid and blood in vitro, thereby reducing the pain of patients.

[0004] The current foaming test technology still has problems such as high difficulty in operation and high technical requirements for medical staff. Single-person operation requires holding a syringe in each hand, and completing the preparation of a bubble suspension that meets the requirements is a huge challenge for medical staff's hands. At the same time, the unstable mixing of bubbles and liquid will also affect the imaging effect, and if the hand movement is unstable, it may pull the indwelling needle and cause additional harm to the patient. Currently, there is a need for a device that is easy to operate, low-cost, and stable in function to help medical staff complete the in vitro foaming test. Summary of the invention

[0005] The purpose of the utility model is to solve the shortcomings in the prior art.

[0006] The utility model provides the following technical scheme: a foaming test device for detecting patent foramen ovale, which is used to provide installation and fixing positions for two standard syringes and assist the user to complete the foaming process.

[0007] include:

[0008] A fixing platform, the fixing platform is used to fix the syringe barrel of the syringe;

[0009] A first pushing slider and a second pushing slider, wherein the first pushing slider and the second pushing slider are used to fix push rods of two syringes respectively, and drive the push rods of the two syringes to move in a straight line;

[0010] An operating mechanism, wherein the operating mechanism is used by a user to perform a circular trajectory rotation operation;

[0011] A transmission mechanism, which is used to convert the user's circular trajectory rotation operation into the linear motion of the first push slider and the second push slider, and the positive and negative changes in the linear motion direction of the first push slider and the second push slider are consistent with the positive and negative changes in the direction of the circular trajectory of the user's rotation operation.

[0012] As a preferred technical solution, the fixed platform is provided with a fixing groove and a fixing card slot, the fixing groove is used to fix the syringe barrel, and the fixing card slot is used to fix the handle of the syringe barrel; the first pushing slider and the second pushing slider are provided with a pushing card slot, and the pushing card slot is used to fix the handle of the syringe push rod.

[0013] As a preferred technical solution, the opening directions of the fixed card slot and the push card slot are consistent.

[0014] As a preferred technical solution, the first pushing slider and the second pushing slider are configured as rack structures, and the extending direction of the rack structures on the first pushing slider and the second pushing slider is consistent with the moving direction of the push rod of the syringe.

[0015] As a preferred technical solution, the first pushing slider and the second pushing slider are arranged vertically, the operating mechanism is configured as a driving gear, and the transmission mechanism is configured as a driven gear connected between the gear of the operating mechanism and the racks of the first pushing slider and the second pushing slider.

[0016] As a preferred technical solution, an operating handle is provided on the driving gear, and the operating handle is rotationally connected to the driving gear.

[0017] As a preferred technical solution, the first pushing slider and the second pushing slider are arranged in parallel, the operating mechanism is arranged as a rotating handle, and the transmission mechanism is arranged as a slide rail structure connected between the rotating handle of the operating mechanism and the first pushing slider.

[0018] As a preferred technical solution, it also includes a connecting tube, which is used to connect the needle tubes of two syringes and human tissue. A first quick-insert three-way valve is provided in the connecting tube, and the three interfaces of the first quick-insert three-way valve are respectively connected to the needle tubes of the two syringes and human tissue.

[0019] As a preferred technical solution, a second quick-insert three-way valve is provided in the connecting pipe, and the second quick-insert three-way valve is provided on the first quick-insert three-way valve and the syringe of one of the syringes.

[0020] As a preferred technical solution, it also includes a base, the fixed platform, the first pushing slider, and the second pushing slider are arranged on the base, and the opening directions of the fixed card slot and the pushing card slot are perpendicular to the plane of the base.

[0021] Beneficial effects:

[0022] (1) In this solution, the inventor provides a standardized device that provides installation and fixing functions for two standard syringes. It has strong applicability, low manufacturing cost, and is convenient for large-scale production and application. The user only needs to install two standard syringes in the device and connect the connecting tube to the human tissue. The rotating operating mechanism can complete the entire process of blood drawing-mixing and foaming-injection. The whole operation is convenient and simple.

[0023] (2) The present solution provides a circular trajectory rotation operation, which greatly simplifies the user's operation difficulty. In the prior art, the user needs to hold a syringe without any fixed structure in both hands and push it quickly dozens of times, which is a great test for the hand muscles of medical staff. Long-term use will definitely cause strain, and in this process it is very easy to pull the needle left on the patient's arm, causing secondary damage to the patient. In the present solution, only the user needs to complete the rotation action, which has low requirements for the operator and low work intensity. In addition, the syringe can be very well fixed during the entire operation, and will not have any adverse effects on the patient.

[0024] (3) This solution provides a very convenient installation structure for the syringe. The syringe can be installed by simply pressing it onto the fixed structure. It can be used with a standard syringe. It has a simple structure, reliable functions, easy assembly and disassembly, and can be used repeatedly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 1-syringe, 11-syringe, 12-push rod, 13-needle tube, 2-fixed platform, 21-fixed slot, 22-fixed card slot, 3-first push slider, 4-second push slider, 341-push card slot, 51-driving gear, 52-operating handle, 53-rotating handle, 61-driven gear, 62-slide rail structure, 7-connecting pipe, 71-first quick-insertion three-way valve, 72-second quick-insertion three-way valve, 8-base.

[0026] Figure 1 is a structural schematic diagram of a foaming test device for detecting patent foramen ovale provided in an embodiment;

[0027] Figure 2is a structural schematic diagram of a foaming test device for detecting patent foramen ovale provided in an embodiment;

[0028] Figure 3 is a schematic diagram of the matching structure of a syringe and a first push slider provided in an embodiment;

[0029] Figure 4 It is a schematic diagram of the matching structure of a syringe and a first push slider provided in an embodiment. DETAILED DESCRIPTION

[0030] The utility model provides the following technical scheme: a foaming test device for detecting patent foramen ovale, which is used to provide installation and fixing positions for two standard syringes and assist the user to complete the foaming process.

[0031] include:

[0032] A fixing platform, the fixing platform is used to fix the syringe barrel of the syringe;

[0033] A first pushing slider and a second pushing slider, wherein the first pushing slider and the second pushing slider are used to fix push rods of two syringes respectively, and drive the push rods of the two syringes to move in a straight line;

[0034] An operating mechanism, wherein the operating mechanism is used by a user to perform a circular trajectory rotation operation;

[0035] A transmission mechanism, which is used to convert the user's circular trajectory rotation operation into the linear motion of the first push slider and the second push slider, and the positive and negative changes in the linear motion direction of the first push slider and the second push slider are consistent with the positive and negative changes in the direction of the circular trajectory of the user's rotation operation.

[0036] As a preferred embodiment, the fixing platform is provided with a fixing groove and a fixing card slot, the fixing groove is used to fix the syringe barrel, and the fixing card slot is used to fix the handle of the syringe barrel; Figure 3 As shown in or 4, the first pushing slider and the second pushing slider are provided with a pushing slot, and the pushing slot is used to fix the handle of the syringe push rod.

[0037] Preferably, when the first sliding block and the second sliding block approach the fixed platform during their travel, the fixed slot and the pushing slot are closely positioned.

[0038] As a preferred implementation, the opening directions of the fixed slot and the push slot are consistent.

[0039] The opening directions of the fixed slot and the push slot are consistent, allowing the user to easily install the syringe from the consistent opening direction. The fixed slot fixes the handle of the syringe barrel, and the push slot fixes the handle of the syringe push rod. The installation and disassembly processes are very convenient; at the same time, stable installation can be guaranteed, and unexpected pulling will not occur during use, and no other harm will be caused to the patient.

[0040] As a preferred embodiment, the first pushing slider and the second pushing slider are configured as rack structures, and the extending direction of the rack structures on the first pushing slider and the second pushing slider is consistent with the moving direction of the push rod of the syringe.

[0041] As a preferred embodiment, Figure 1 As shown, the first pushing slider and the second pushing slider are arranged vertically, the operating mechanism is configured as a driving gear, and the transmission mechanism is configured as a driven gear connected between the gear of the operating mechanism and the racks of the first pushing slider and the second pushing slider.

[0042] As a preferred implementation, an operating handle is provided on the driving gear, and the operating handle is rotationally connected to the driving gear.

[0043] As a preferred embodiment, Figure 2 As shown, the first pushing slider and the second pushing slider are arranged in parallel, the operating mechanism is arranged as a rotating handle, and the transmission mechanism is arranged as a slide rail structure connected between the rotating handle of the operating mechanism and the first pushing slider.

[0044] Preferably, when the first pushing slider and the second pushing slider are arranged in parallel, the rack structures of the first pushing slider and the second pushing slider are arranged opposite to each other, and a gear is arranged between the first pushing slider and the second pushing slider.

[0045] As a preferred embodiment, it also includes a connecting tube, which is used to connect the needle tubes of two syringes and human tissue. A first quick-insert three-way valve is provided in the connecting tube, and the three interfaces of the first quick-insert three-way valve are respectively connected to the needle tubes of the two syringes and human tissue.

[0046] As a preferred embodiment, a second quick-insert three-way valve is provided in the connecting pipe, and the second quick-insert three-way valve is provided on the first quick-insert three-way valve and the syringe of one of the syringes.

[0047] The quick-insert three-way valve used in this solution is a standard part commonly used in the medical device field. Its main structure includes three interfaces and a control handle. The interconnection between any two interfaces or all three interfaces can be achieved by rotating the control handle. In this solution, there is no restriction on the brand selection of the quick-insert three-way valve.

[0048] As a preferred embodiment, it further comprises a base, the fixed platform, the first pushing slider and the second pushing slider are arranged on the base, and the opening directions of the fixed card slot and the pushing card slot are perpendicular to the plane of the base.

[0049] The opening directions of the fixed card slot and the push card slot are perpendicular to the plane of the base and face upward, thereby allowing the user to conveniently install the syringe therein, and stably pull and push the syringe through the operating mechanism without causing any pulling on the indwelling needle in the patient's body.

[0050] Working principle:

[0051] The technical solution disclosed in the utility model is used to complete the foaming test. The user can place two standard syringes in the device provided by the solution, and with the help of the device, the entire process of blood drawing-mixing foaming-injection can be completed very conveniently. First, the user connects the connecting tube to the retention needle on the patient's arm, adjusts the first quick-insert three-way valve to connect the retention needle with the syringe with a mixed liquid (generally a mixture of saline and air) on the second push slider, rotates the operating mechanism to drive the syringe to draw blood, and then places another syringe on the fixed platform corresponding to the first push slider, adjusts the first quick-insert three-way valve to connect the two syringes, adjusts the second quick-insert three-way valve to connect the syringe and the first quick-insert three-way valve, and then rotates the operating mechanism. The device is a device for injecting bubbles into the air bubble suspension. The device is driven by a transmission mechanism. The first push slider and the second push slider reciprocate in opposite directions at the same time. The blood and the mixed liquid in the two syringes are quickly mixed and foamed in the two syringes. Since the movement of the two syringes in the device is relative, the user can complete the foaming action effortlessly, and the final bubble suspension can be ensured to be well mixed, avoiding gas embolism to the patient and ensuring the imaging effect. Finally, all the mixed bubble suspension is moved to the syringe corresponding to the second push slider, and the first quick-insert three-way valve is adjusted to connect the retention needle with the syringe on the second push slider, and the second quick-insert three-way valve is adjusted to connect the syringe on the first push slider with the air. The operating mechanism is rotated to complete the injection of the bubble suspension. The whole process has low requirements on the operator, low work intensity, uniform bubble mixture, and the syringe can be very well fixed during the whole operation, which will not have any adverse effects on the patient.

[0052] The technical means disclosed in the utility model solution are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A foaming test device for detecting patent foramen ovale, used to carry two syringes, characterized in that: include: A fixing platform (2), wherein the fixing platform (2) is used to fix the syringe (11) of the syringe (1); A first pushing slider (3) and a second pushing slider (4), wherein the first pushing slider (3) and the second pushing slider (4) are used to respectively fix the push rods (12) of the two syringes (1) and drive the push rods (12) of the two syringes (1) to move in a straight line; An operating mechanism, wherein the operating mechanism is used by a user to perform a circular trajectory rotation operation; A transmission mechanism, the transmission mechanism is used to convert the user's circular trajectory rotation operation into the linear motion of the first push slider (3) and the second push slider (4), and the positive and negative changes in the linear motion direction of the first push slider (3) and the second push slider (4) are consistent with the positive and negative changes in the direction of the circular trajectory of the user's rotation operation.

2. The foaming test device for detecting patent foramen ovale according to claim 1, characterized in that: The fixing platform (2) is provided with a fixing groove (21) and a fixing clamping groove (22), wherein the fixing groove (21) is used to fix the syringe (11) of the syringe (1), and the fixing clamping groove (22) is used to fix the handle of the syringe (1) syringe (1); the first pushing slide block (3) and the second pushing slide block (4) are provided with a pushing clamping groove (341), and the pushing clamping groove (341) is used to fix the handle of the push rod (12) of the syringe (1).

3. The foaming test device for detecting patent foramen ovale according to claim 2, characterized in that: The opening directions of the fixed card slot (22) and the pushing card slot (341) are consistent.

4. The foaming test device for detecting patent foramen ovale according to claim 2, characterized in that: The first pushing slider (3) and the second pushing slider (4) are configured as rack structures, and the extension direction of the rack structures on the first pushing slider (3) and the second pushing slider (4) is consistent with the travel direction of the push rod (12) of the syringe (1).

5. The foaming test device for detecting patent foramen ovale according to claim 4, characterized in that: The first pushing slider (3) and the second pushing slider (4) are arranged vertically, the operating mechanism is configured as a driving gear (51), and the transmission mechanism is configured as a driven gear (61) connected between the gear of the operating mechanism and the racks of the first pushing slider (3) and the second pushing slider (4).

6. The foaming test device for detecting patent foramen ovale according to claim 5, characterized in that: An operating handle (52) is provided on the driving gear (51), and the operating handle (52) is rotationally connected to the driving gear (51).

7. The foaming test device for detecting patent foramen ovale according to claim 4, characterized in that: The first pushing slider (3) and the second pushing slider (4) are arranged in parallel, the operating mechanism is arranged as a rotating handle (53), and the transmission mechanism is arranged as a slide rail structure (62) connected between the rotating handle (53) of the operating mechanism and the first pushing slider (3).

8. The foaming test device for detecting patent foramen ovale according to claim 5 or 7, characterized in that: The invention also comprises a connecting tube (7), wherein the connecting tube (7) is used to connect the needle tubes (13) of the two syringes (1) and human tissue, and wherein a first quick-insertion three-way valve (71) is arranged in the connecting tube (7), and three interfaces of the first quick-insertion three-way valve (71) are respectively connected to the needle tubes (13) of the two syringes (1) and human tissue.

9. The foaming test device for detecting patent foramen ovale according to claim 8, characterized in that: A second quick-insertion three-way valve (72) is arranged in the connecting pipe (7), and the second quick-insertion three-way valve (72) is arranged on the first quick-insertion three-way valve (71) and the syringe (11) of one of the syringes (1).

10. The foaming test device for detecting patent foramen ovale according to claim 2, characterized in that: It also comprises a base (8), the fixed platform (2), the first pushing slider (3), and the second pushing slider (4) are arranged on the base (8), and the opening directions of the fixed card slot (22) and the pushing card slot (341) are perpendicular to the plane of the base (8).

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