CN217853994U - Bloodletting device convenient to drainage pressure switches - Google Patents
Bloodletting device convenient to drainage pressure switches Download PDFInfo
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- CN217853994U CN217853994U CN202221079426.7U CN202221079426U CN217853994U CN 217853994 U CN217853994 U CN 217853994U CN 202221079426 U CN202221079426 U CN 202221079426U CN 217853994 U CN217853994 U CN 217853994U
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Abstract
The utility model relates to the technical field of medical equipment, concretely relates to bloodletting device convenient to drainage pressure switches, including drainage subassembly and negative pressure subassembly, the drainage subassembly is used for drainage to go out the internal blood of patient, and the negative pressure subassembly is used for providing the negative pressure and making the negative pressure act on the blood drainage to the drainage subassembly, makes the drainage subassembly can last drainage play patient's blood, and the negative pressure subassembly includes the governing valve, and the governing valve is used for adjusting the negative pressure size that the negative pressure subassembly provided to the drainage subassembly. In the scheme of this application, the negative pressure size that the negative pressure subassembly provided to the drainage subassembly can be adjusted to the governing valve to the blood velocity of flow when adjusting the exsanguination, can also adjust the blood velocity of flow of drainage in real time, and can adjust the negative pressure size that the negative pressure subassembly provided to the drainage subassembly according to the difference of the consistency of different patients' blood, blood drainage when doing benefit to the patient exsanguination, the medical personnel of being convenient for carry out the operation of exsanguination to different patients, can match the exsanguination speed of preferred to different patients.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to bloodletting device convenient to drainage pressure switches.
Background
The phlebotomy therapy of the traditional Chinese medicine is also called as acupuncture phlebotomy therapy, which is a method for treating diseases by puncturing or cutting specific acupuncture points and superficial veins of a human body by using a triangular needle, a coarse needle or a small sharp knife, discharging a small amount of blood and externally discharging accumulated heat and toxicity. When the phlebotomy is clinically carried out, a large wound surface is often formed, and infection of a patient after treatment is easily caused.
Currently, there are bleeding devices on the market, and although the current bleeding devices can facilitate blood in a patient to flow out of the patient, in the actual use process, the inventors found that the current bleeding devices have disadvantages, specifically:
most of the existing bloodletting devices provide negative pressure bloodletting function, but the drainage pressure is difficult to switch during bloodletting, so that the better bloodletting speed is difficult to match for different patients.
Therefore, in view of the above problems, there is a need to provide a blood discharging device with convenience for switching drainage pressure to solve the above disadvantages.
Disclosure of Invention
The utility model aims to provide a: to the not enough that present bloodletting device exists in the in-service use process, provide the bloodletting device of drainage pressure switching of being convenient for to solve above-mentioned not enough.
In order to achieve the purpose of the invention, the utility model provides the following technical scheme:
the utility model provides a bloodletting device convenient to drainage pressure switches, includes drainage subassembly and negative pressure subassembly, the drainage subassembly is used for drainage play patient's internal blood, the negative pressure subassembly be used for to the drainage subassembly provides the negative pressure and makes the negative pressure act on the blood drainage, makes the drainage subassembly can last drainage play patient's blood, just the negative pressure subassembly includes the governing valve, the governing valve is used for adjusting the negative pressure subassembly to the negative pressure size that the drainage subassembly provided.
As the preferential technical scheme of this application, the governing valve is the choke valve, negative pressure subassembly still includes the negative pressure pump, the negative pressure pump with the choke valve phase-match, the negative pressure pump can do the drainage subassembly provides the negative pressure.
As the preferential technical scheme of this application, the drainage subassembly includes pjncture needle, drainage tube and collection bottle, the collection bottle is used for depositing blood, the pjncture needle is used for piercing patient's blood vessel, the drainage tube intercommunication the pjncture needle with the collection bottle, the negative pressure pump intercommunication the collection bottle enables the space that is used for depositing blood in the collection bottle with blood in the drainage tube forms pressure differential.
As the preferential technical scheme of this application, the collection bottle has the biggest storage capacity when depositing blood the blood that deposits in the collection bottle is when the biggest storage capacity, the liquid level of blood apart from the distance of gathering the bottle bottom is alpha, gather on the bottle with the position distance that the negative pressure pump is linked together gather the bottle bottom the distance of bottle is greater than alpha.
As the preferential technical scheme of this application, be provided with buffer portion on the collection bottle when the governing valve is adjusted negative pressure size in the collection bottle, buffer portion can play the cushioning effect in order to reduce negative pressure change rate in the collection bottle.
As the prior technical scheme of this application, buffering portion includes the fly leaf and has elastic spring, spring coupling gather the bottle with the fly leaf, the fly leaf is in gather in the bottle just the edge of fly leaf with gather the bottle and laminate mutually the governing valve is adjusted when gathering the negative pressure size in the bottle, the fly leaf can be relative gather the bottle and remove in order to reduce negative pressure rate of change in the collection bottle, and when the fly leaf removed, elastic deformation can take place for the spring.
As the preferential technical scheme of this application, the collection bottle with the fly leaf cooperatees and forms the cavity that can deposit blood, buffering portion still includes the transition pipe, the fly leaf with the transition pipe links to each other, just the one end intercommunication of transition pipe the cavity, the other end intercommunication of transition pipe the drainage tube, trompil is in order to supply on the collection bottle the transition pipe passes.
As a preferential technical solution of the present application, the buffer portion further includes a control member for adjusting an initial elongation amount of the spring.
As the preferential technical scheme of this application, be connected with on the collection bottle one side of spring with the control is screw-thread fit, just the control stretches out the collection bottle is through making the control relative the collection bottle rotates in order to change the control is in extension volume in the collection bottle, and makes the control top pushes up the fly leaf is in order to adjust the extension volume of spring.
As the preferential technical scheme of this application, be provided with the tapping switch on the collection bottle, the tapping switch is used for the discharge to collect the blood in the collection bottle.
Compared with the prior art, the beneficial effects of the utility model are that:
in the scheme of the application, the bloodletting device convenient for drainage pressure switching comprises a drainage component and a negative pressure component, wherein the drainage component is used for draining blood in a patient body, the negative pressure component is used for providing negative pressure for the drainage component and enabling the negative pressure to act on blood drainage, so that the blood in the patient body can be drained to the outside of the body under the action of the negative pressure, and the drainage component can continuously drain the blood in the patient body;
the drainage assembly comprises a puncture needle, a drainage tube and a collection bottle, the collection bottle is used for storing blood, the puncture needle is used for puncturing a blood vessel of a patient, the drainage tube is communicated with the puncture needle and the collection bottle, and the negative pressure pump is communicated with the collection bottle, so that when blood drainage is carried out, a space for storing the blood in the collection bottle and the blood in the drainage tube form a pressure difference, and the blood is drained from the body of the patient to the collection bottle through the puncture needle and the drainage tube;
the collecting bottle is provided with a buffer part, when the regulating valve regulates the negative pressure in the collecting bottle, the buffer part can play a buffer role to reduce the negative pressure change rate in the collecting bottle, so that when the negative pressure provided by the negative pressure pump to the drainage assembly suddenly changes, the buffer part can enable the negative pressure change in the collecting bottle to tend to be gentle, when the drainage pressure is switched, the condition that the blood flow of a patient is changed suddenly when the patient releases blood can be avoided, when the negative pressure is regulated by controlling the regulating valve, medical staff can observe the blood flow speed of the patient in real time conveniently, and the safety when the drainage pressure is switched is further improved;
the buffer part comprises a movable plate and a spring with elastic deformation, the spring is connected with the collection bottle and the movable plate, the movable plate is positioned in the collection bottle, the edge of the movable plate is attached to the collection bottle, when the regulating valve regulates the negative pressure in the collection bottle, the movable plate can move relative to the collection bottle so as to reduce the change rate of the negative pressure in the collection bottle, the area acted by the negative pressure pump is a cavity formed by the movable plate and the collection bottle, when the regulating valve is controlled to regulate the provided negative pressure, the movable plate moves relative to the collection bottle, the space size of the cavity formed by the movable plate and the collection bottle is changed, the buffer part has a buffer effect on the change of the negative pressure in the collection bottle, and simultaneously along with the movement of the movable part, the spring elastically deforms so as to be matched with the spring to move when the negative pressure is regulated subsequently, and the movable part can continuously buffer the change of the negative pressure in the collection bottle under the action of the movable plate and the spring;
the buffer part also comprises a control part, the control part is used for adjusting the initial elongation of the spring, through controlling the control part, make the spring have different initial elongations, the initial elongation of the spring is the elongation of the spring when not switching drainage pressure, make when the control governing valve switches drainage pressure, the difficulty that the spring that enables to be in different elongations is different by tensile, when the condition to negative pressure increase, through adjusting the initial elongation of the spring, make the moving speed and the removal formation when the relative collection bottle of fly leaf removes different, and then make the buffer part have the cushioning effect of different strong and weak effects, so that when switching drainage pressure, can select different negative pressure rate of change, the negative pressure rate of change in the messenger collection bottle that this negative pressure rate of change indicates rate of change.
Description of the drawings:
FIG. 1 is a schematic structural view of one embodiment of a phlebotomy device for facilitating drainage pressure switching according to the present application;
FIG. 2 is a partial schematic view of one embodiment of a phlebotomy device for facilitating drainage pressure switching according to the present application;
the figures are marked by: 1-a drainage component, 2-a negative pressure component, 3-a regulating valve, 4-a negative pressure pump, 5-a puncture needle, 6-a drainage tube, 7-a collection bottle, 8-a buffer part, 9-a movable plate, 10-a spring, 11-a cavity, 12-a transition tube, 13-a control part and 14-a liquid discharging switch.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them.
Thus, the following detailed description of the embodiments of the invention is not intended to limit the scope of the invention as claimed, but is merely representative of some embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and the features and technical solutions in the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper" and "lower" indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the product of the present invention is usually placed when in use, or the orientation or position relationship that a person skilled in the art would conventionally understand, and such terms are only used for convenience of description and simplification of the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
The first embodiment is as follows: as shown with reference to figure 1 of the drawings,
the bleed device convenient to drainage pressure switches that this embodiment provided, including drainage subassembly 1 and negative pressure subassembly 2, drainage subassembly 1 is used for drainage patient internal blood, negative pressure subassembly 2 be used for to drainage subassembly 1 provides the negative pressure and makes the negative pressure act on the blood drainage, makes drainage subassembly 1 can continuously drain patient's blood, just negative pressure subassembly 2 includes governing valve 3, governing valve 3 is used for adjusting negative pressure subassembly 2 to the negative pressure size that drainage subassembly 1 provided.
This bloodletting instrument convenient to drainage pressure switches includes drainage subassembly 1 and negative pressure subassembly 2, drainage subassembly 1 is used for drainage play patient internal blood, negative pressure subassembly 2 is used for providing the negative pressure and makes the negative pressure act on the blood drainage to drainage subassembly 1, make can do benefit to the internal blood drainage of patient to external under the effect of negative pressure, and make drainage subassembly 1 can last drainage play patient's blood, and negative pressure device includes governing valve 3, governing valve 3 can adjust the negative pressure size that negative pressure subassembly 2 provided to drainage subassembly 1, so that adjust the blood velocity of flow when the patient bloodletting, simultaneously carrying out the in-process of bloodletting to the patient, through control governing valve 3, can also adjust the blood velocity of flow from the internal drainage of patient in real time, and can adjust the negative pressure size that negative pressure subassembly 2 provided to drainage subassembly 1 according to the difference of the consistency of different patients's blood, so blood drainage when being favorable to the patient bloodletting, and then be convenient for medical personnel to carry out the bloodletting operation to different patients, simultaneously can also be directed against the speed of bloodletting of the patient matching preferred of different patients.
As a preferred embodiment, on the basis of the above manner, further, the regulating valve 3 is a throttle valve, the negative pressure assembly 2 further includes a negative pressure pump 4, the negative pressure pump 4 is matched with the throttle valve, and the negative pressure pump 4 can provide negative pressure for the drainage assembly 1.
The governing valve 3 is the choke valve to negative pressure subassembly 2 still includes negative pressure pump 4, negative pressure pump 4 and choke valve phase-match for negative pressure pump 4 is as providing the power supply of negative pressure to drainage subassembly 1, and the choke valve is controlled with the flow through the size that changes the throttle cross-section simultaneously, and then realizes adjusting the negative pressure that negative pressure pump 4 provided, so improved the convenience of adjusting drainage pressure.
In a preferred embodiment, in addition to the above-mentioned mode, the drainage assembly 1 further includes a puncture needle 5, a drainage tube 6 and a collection bottle 7, the collection bottle 7 is used for storing blood, the puncture needle 5 is used for puncturing a blood vessel of a patient, the drainage tube 6 is communicated with the puncture needle 5 and the collection bottle 7, the negative pressure pump 4 is communicated with the collection bottle 7, and a pressure difference can be formed between a space for storing blood in the collection bottle 7 and the blood in the drainage tube 6.
The drainage assembly 1 comprises a puncture needle 5, a drainage tube 6 and a collection bottle 7, wherein the collection bottle 7 is used for storing blood, the puncture needle 5 is used for puncturing a blood vessel of a patient, the drainage tube 6 is communicated with the puncture needle 5 and the collection bottle 7, and a negative pressure pump 4 is communicated with the collection bottle 7, so that when blood drainage is carried out, a space for storing the blood in the collection bottle 7 and the blood in the drainage tube 6 form a pressure difference, and the blood is drained from the body of the patient to the collection bottle 7 through the puncture needle 5 and the drainage tube 6.
In a preferred embodiment, in addition to the above-described embodiment, the collection bottle 7 has a maximum storage capacity when storing blood, and when the blood stored in the collection bottle 7 has the maximum storage capacity, the distance from the liquid surface of the blood to the bottom of the collection bottle 7 is α, and the distance from the portion of the collection bottle 7 communicating with the negative pressure pump 4 to the bottom of the collection bottle 7 is greater than α.
The collection bottle 7 has the maximum storage capacity when storing blood, when the blood stored in the collection bottle 7 has the maximum storage capacity, the distance from the liquid level of the blood to the bottom of the collection bottle 7 is alpha, and the distance from the part, communicated with the negative pressure pump 4, on the collection bottle 7 to the bottom of the collection bottle 7 is larger than alpha, so that the negative pressure pump 4 can effectively prevent the blood from flowing into the negative pressure pump 4 in the collection process when in work.
Example two: as shown with reference to figure 2 of the drawings,
on the basis of the technical scheme of the embodiment, furthermore, the collection bottle 7 is provided with a buffer part 8, and when the regulating valve 3 regulates the negative pressure in the collection bottle 7, the buffer part 8 can play a role in buffering to reduce the negative pressure change rate in the collection bottle 7.
Be provided with buffering portion 8 on collection bottle 7, when the negative pressure size in collection bottle 7 is adjusted to governing valve 3, buffering portion 8 can play the cushioning effect in order to reduce the negative pressure rate of change in collection bottle 7, make when negative pressure pump 4 is to the negative pressure sudden change that drainage subassembly 1 provided, buffering portion 8 enables the negative pressure change in collection bottle 7 and tends to gently, when switching drainage pressure, the condition that sharp change appears in the blood flow when can avoiding the patient to bleed, when adjusting the negative pressure through control governing valve 3, the medical personnel of being convenient for observe patient's blood velocity of flow in real time, and then the security when having improved switching drainage pressure.
In a preferred embodiment, in addition to the above-mentioned mode, the buffer portion 8 further includes a movable plate 9 and a spring 10 with elasticity, the spring 10 connects the collection bottle 7 and the movable plate 9, the movable plate 9 is located in the collection bottle 7, and the edge of the movable plate 9 is attached to the collection bottle 7, when the adjusting valve 3 adjusts the negative pressure in the collection bottle 7, the movable plate 9 can move relative to the collection bottle 7 to reduce the rate of change of the negative pressure in the collection bottle 7, and when the movable plate 9 moves, the spring 10 can be elastically deformed.
The buffer part 8 comprises a movable plate 9 and a spring 10 with elastic deformation, the spring 10 is connected with the collection bottle 7 and the movable plate 9, the movable plate 9 is located in the collection bottle 7, the edge of the movable plate 9 is attached to the collection bottle 7, when the adjusting valve 3 adjusts the negative pressure in the collection bottle 7, the movable plate 9 can move relative to the collection bottle 7, so that the negative pressure change rate in the collection bottle 7 is reduced, the area where the negative pressure pump 4 acts is a cavity formed by the movable plate 9 and the collection bottle 7, when the adjusting valve 3 is controlled to increase the provided negative pressure, the movable plate 9 moves relative to the collection bottle 7, so that the space size of the cavity formed by the movable plate 9 and the collection bottle 7 is changed, the buffer part 8 has a buffer effect on the negative pressure change in the collection bottle 7, meanwhile, the spring 10 elastically deforms along with the movement of the movable part, so that when the movable part adjusts the negative pressure subsequently, the movable part is matched with the spring 10 to move, so that the movable plate 9 and the spring 10 can continuously buffer the negative pressure change in the collection bottle 7 under the action of the movable plate 9 and the hole, and specifically, the area corresponding to the spring 10 is arranged on the side wall of the collection bottle 7, and the movable plate, so that the area where the movable plate 9 and the area are large deformation of the environment is changed, and the area.
As a preferred embodiment, on the basis of the above manner, further, the collection bottle 7 cooperates with the movable plate 9 to form a cavity 11 capable of storing blood, the buffer portion 8 further includes a transition tube 12, the movable plate 9 is connected to the transition tube 12, one end of the transition tube 12 is communicated with the cavity 11, the other end of the transition tube 12 is communicated with the drainage tube 6, and an opening is formed in the collection bottle 7 for the transition tube 12 to pass through.
In a preferred embodiment, in addition to the above, the buffer part 8 further includes a control member 13, and the control member 13 is configured to adjust an initial elongation of the spring 10.
The buffer part 8 further comprises a control part 13, the control part 13 is used for adjusting the initial elongation of the spring 10, the spring 10 is enabled to have different initial elongations by controlling the control part 13, the initial elongations of the spring 10 are the elongations of the spring 10 when the drainage pressure is not switched, so that when the drainage pressure is switched by the control adjusting valve 3, the difficulty of stretching the spring 10 with different elongations is different, when the negative pressure is increased, the moving speed and the moving speed of the movable plate 9 relative to the collection bottle 7 are different by adjusting the initial elongations of the spring 10, and the buffer part 8 has the buffer effect with different strength effects, so that when the drainage pressure is switched, different negative pressure change rates can be selected, and the negative pressure change rate refers to the negative pressure change rate in the collection bottle 7.
As a preferable embodiment, on the basis of the above manner, further, the side of the collection bottle 7 connected with the spring 10 is in threaded fit with the control member 13, and the control member 13 extends out of the collection bottle 7, so as to change the elongation of the control member 13 in the collection bottle 7 by rotating the control member 13 relative to the collection bottle 7, and make the control member 13 push the movable plate 9 to adjust the elongation of the spring 10.
One side of the collection bottle 7, which is connected with the spring 10, is in threaded fit with the control piece 13, and the control piece 13 extends out of the collection bottle 7, so that a medical worker can hold the control piece 13 by hand to control the control piece 13, the control piece 13 rotates relative to the collection bottle 7 to change the elongation of the control piece 13 in the collection bottle 7, and the control piece 13 pushes the movable plate 9 to adjust the elongation of the spring 10, and therefore the convenience of adjusting the initial elongation of the spring 10 is improved.
In a preferred embodiment, in addition to the above-mentioned aspect, the collection bottle 7 is further provided with a liquid discharging switch 14, and the liquid discharging switch 14 is used for discharging the blood collected in the collection bottle 7.
The collection bottle 7 is provided with a liquid discharging switch 14, and the liquid discharging switch 14 is used for discharging the blood collected in the collection bottle 7, so that the convenience of discharging the blood in the collection bottle 7 is improved.
The above embodiments are only used to illustrate the present invention and not to limit the technical solutions of the present invention, and although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above embodiments, so that any modifications or equivalent substitutions can be made to the present invention; all such modifications and variations are intended to be included herein within the scope of this disclosure and the present invention and protected by the following claims.
Claims (7)
1. The utility model provides a bloodletting device convenient to drainage pressure switches which characterized in that: the negative pressure drainage device comprises a drainage assembly and a negative pressure assembly, wherein the drainage assembly is used for draining blood in a patient, the negative pressure assembly is used for providing negative pressure for the drainage assembly and enabling the negative pressure to act on blood drainage, so that the drainage assembly can continuously drain the blood of the patient, and the negative pressure assembly comprises an adjusting valve which is used for adjusting the negative pressure provided by the negative pressure assembly for the drainage assembly; the regulating valve is a throttle valve, the negative pressure assembly further comprises a negative pressure pump, the negative pressure pump is matched with the throttle valve, and the negative pressure pump can provide negative pressure for the drainage assembly; the drainage assembly comprises a puncture needle, a drainage tube and a collection bottle, the collection bottle is used for storing blood, the puncture needle is used for puncturing a blood vessel of a patient, the drainage tube is communicated with the puncture needle and the collection bottle, and the negative pressure pump is communicated with the collection bottle, so that a space for storing the blood in the collection bottle and the blood in the drainage tube form pressure difference; the collecting bottle is provided with a buffering part, and when the regulating valve regulates the negative pressure in the collecting bottle, the buffering part can play a role in buffering so as to reduce the negative pressure change rate in the collecting bottle.
2. The phlebotomy device that facilitates drainage pressure switching of claim 1, wherein: the blood collection bottle is characterized in that the collection bottle has the maximum storage capacity when storing blood, when the blood stored in the collection bottle has the maximum storage capacity, the distance from the liquid level of the blood to the bottle bottom of the collection bottle is alpha, and the distance from the part, communicated with the negative pressure pump, on the collection bottle to the bottle bottom of the collection bottle is larger than alpha.
3. The phlebotomy device that facilitates drainage pressure switching of claim 1, wherein: buffering portion includes the fly leaf and has elastic spring, spring coupling the collection bottle with the fly leaf, the fly leaf is in the collection bottle just the edge of fly leaf with the collection bottle laminates mutually when the governing valve is adjusted the negative pressure size in the collection bottle, the fly leaf can be relative the collection bottle removes in order to reduce negative pressure change rate in the collection bottle, and when the fly leaf removed, elastic deformation can take place for the spring.
4. The phlebotomy device that facilitates drainage pressure switching of claim 3, wherein: the collection bottle with the fly leaf cooperatees and forms the cavity that can deposit blood, buffering portion still includes the transition pipe, the fly leaf with the transition pipe links to each other, just the one end intercommunication of transition pipe the cavity, the other end intercommunication of transition pipe the drainage tube, the last trompil of collection bottle is in order to supply the transition pipe passes.
5. The phlebotomy device for facilitating drainage pressure switching of claim 4, wherein: the buffer portion further includes a control member for adjusting an initial extension amount of the spring.
6. The phlebotomy device that facilitates drainage pressure switching of claim 5, wherein: one side of the collecting bottle, which is connected with the spring, is in threaded fit with the control piece, the control piece extends out of the collecting bottle, the control piece rotates relative to the collecting bottle to change the elongation of the control piece in the collecting bottle, and the control piece pushes the movable plate to adjust the elongation of the spring.
7. The phlebotomy device for facilitating drainage pressure switching of claim 1, wherein: the collection bottle is provided with a liquid discharging switch, and the liquid discharging switch is used for discharging blood collected in the collection bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221079426.7U CN217853994U (en) | 2022-05-07 | 2022-05-07 | Bloodletting device convenient to drainage pressure switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221079426.7U CN217853994U (en) | 2022-05-07 | 2022-05-07 | Bloodletting device convenient to drainage pressure switches |
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| Publication Number | Publication Date |
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| CN217853994U true CN217853994U (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221079426.7U Active CN217853994U (en) | 2022-05-07 | 2022-05-07 | Bloodletting device convenient to drainage pressure switches |
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| CN (1) | CN217853994U (en) |
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- 2022-05-07 CN CN202221079426.7U patent/CN217853994U/en active Active
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