CN215129390U

CN215129390U - A hemostasis subassembly for blood sampling of vein

Info

Publication number: CN215129390U
Application number: CN202022995767.6U
Authority: CN
Inventors: 许波; 梁钥; 莫晓琼; 张广清; 乔惠; 肖敏
Original assignee: Southern Hospital Southern Medical University
Current assignee: Southern Hospital Southern Medical University
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-12-14
Anticipated expiration: 2030-12-11

Abstract

The utility model discloses a hemostasis assembly for venous blood sampling, which comprises a shell, a storage device and a safety assembly, wherein the shell is provided with an interlayer for storing sulfate solution, and the bottom wall in the shell is provided with a sealing film; a reaction cavity is formed between the bottom of the storage device and the bottom of the shell and used for storing solid substances, at least two storage grids are arranged in the storage device and used for storing a first solution, and a first puncture part is arranged below each storage grid; the safety assembly includes a second piercing portion and a compression spring. Pressing the storage device for a certain distance, wherein part of the first puncture part punctures the corresponding storage grid, the solid substance reacts with the solution for refrigeration, the cold compress hemostasis is carried out, the pressing is continued, the other part of the first puncture part punctures the corresponding storage grid, the refrigeration is continued, and the cold compress time is prolonged; if the sudden cooling is too low or the patient cannot receive cold stimulation and the like, the safety component is pressed to puncture the sealing film, and the sulfate enables the refrigeration reaction to be stopped emergently.

Description

A hemostasis subassembly for blood sampling of vein

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a hemostasis subassembly for blood sampling of vein.

Background

Blood sample is gathered to vein is one of the most common operation in clinical work, because the blood vessel of elbow is thick straight and show very obviously at the body surface, consequently often gather blood sample at the elbow, after gathering blood sample, the patient presses the blood sampling point with the cotton swab, and the nurse though having done the instruction and having taught and taught, nevertheless because cultural degree and receptivity degree are different, the patient often because according to incorrect blood sampling point hemorrhage once more or subcutaneous extravasated blood, hemostatic effect is not good.

SUMMERY OF THE UTILITY MODEL

For at least one among the above-mentioned technical problem of solution, improve hemostatic effect, the utility model provides a hemostatic assembly for venous blood sampling, the technical scheme who adopts as follows:

the utility model provides a hemostasis subassembly for venous blood sampling includes shell, storage device and safety subassembly, the lateral wall and the diapire of shell are provided with the intermediate layer that is used for storing the sulphate solution, the diapire in the shell is provided with the envelope that can puncture; the storage device is arranged in the shell in a vertically movable mode, a reaction cavity is formed between the bottom of the storage device and the bottom of the shell and used for storing solid substances participating in refrigeration reaction, at least two storage grids are arranged in the storage device and used for storing a first solution participating in the refrigeration reaction, a first puncture part is arranged below each storage grid and used for puncturing the bottom of each storage grid, and the first puncture part is arranged on the bottom wall in the shell; the safety assembly comprises a second puncture part and a compression spring, the compression spring is sleeved at the upper end of the second puncture part, the second puncture part penetrates through the storage device, and the second puncture part is used for puncturing the sealing film.

In some embodiments of the present invention, at least two of the first piercing portions corresponding to the respective storage compartments have different heights.

In some embodiments of the present invention, the height of the first piercing part corresponding to each of the storage compartments decreases progressively in sequence.

In some embodiments of the present invention, the upper portion of the storage device is provided with a buffer chamber, and the reaction chamber is communicated with the buffer chamber through an airflow channel.

In some embodiments of the present invention, the lower portion of the buffer chamber is provided with a water-absorbing layer, and the water-absorbing layer is disposed at the port of the airflow channel.

The utility model discloses an in some embodiments, be provided with non-woven fabrics or foraminiferous baffle among the airflow channel, perhaps airflow channel's upper end port department is provided with non-woven fabrics or foraminiferous baffle.

In some embodiments of the present invention, the outer wall of the storage device is connected to the inner wall of the housing through an inner connecting portion to seal the gap between the outer wall of the storage device and the inner wall of the housing, the inner connecting portion is configured as a soft film.

In some embodiments of the present invention, the side wall of the water absorbing layer is provided with a first check valve, and the reaction chamber communicates with the water absorbing layer through the first check valve.

The utility model discloses an in some embodiments, storage device's outer wall pass through outer connecting portion with the outside at shell top is connected, outer connecting portion set up to soft film, outer connecting portion with constitute the overflow chamber between the inner connecting portion, the lateral wall in buffer memory chamber is provided with the second check valve, the buffer memory chamber passes through the second check valve intercommunication to the overflow chamber.

In some embodiments of the present invention, the side wall of the upper portion of the second puncturing part is provided with an annular limiting part, the compression spring is disposed below the annular limiting part, the upper end of the compression spring is connected with the annular limiting part, and the lower end of the compression spring is connected with the top of the storage device.

The embodiment of the utility model has the following beneficial effect at least: the design is used for adorning solid state material's reaction chamber, an intermediate layer that is used for adorning the storage check of solution one and is used for adorning the sulphate solution, the position of bleeding is arranged in to the hemostasis subassembly, press a section distance with storage device, the storage check that part first puncture portion will correspond punctures, solution one wherein and solid state material produce the refrigeration reaction, quick cold compress stanchs, continue to press storage device, the first puncture portion of another part punctures the storage check that corresponds, continue to produce the refrigeration reaction, can prolong the hemostatic time of cold compress, hemostatic effect is better. If the temperature is too low or the patient can not accept sudden situations such as cold stimulation and the like, the safety component is pressed to puncture the sealing film, the sulfate solution in the interlayer reacts with the barium hydroxide, so that the refrigeration reaction is stopped emergently. The utility model can be widely applied to the technical field of medical instruments.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a blood stopper.

Reference numerals: 101. a housing; 102. a reaction chamber; 103. a storage cell; 104. a first puncture section; 105. a cache cavity; 106. an air flow channel; 107. a water-absorbing layer; 108. an inner connection portion; 109. a first check valve; 110. an outer connecting portion; 111. a second one-way valve; 113. an interlayer; 114. sealing the film; 115. a second puncture section; 116. compressing the spring.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that if the terms "center", "middle", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are used to indicate an orientation or positional relationship based on that shown in the drawings, it is only for convenience of description and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model relates to a hemostasis subassembly for venous blood sampling, the position of bleeding is arranged in to the hemostasis subassembly, presses the hemostasis, and is simple and convenient easy to operate. The hemostasis assembly includes a housing 101, a storage device and a safety assembly, the storage device is arranged in a cylindrical structure, the housing 101 is arranged in a hard plastic shell, and the storage device is arranged in the housing 101 in a manner of moving up and down. A reaction cavity 102 is formed between the bottom of the storage device and the bottom of the casing 101, the reaction cavity 102 is used for storing solid substances participating in the refrigeration reaction, at least two storage grids 103 are arranged in the storage device, and the storage grids 103 are used for storing a first solution participating in the refrigeration reaction. Specifically, the solid substance is one of ammonium chloride powder, ammonium nitrate powder, barium hydroxide powder and ammonium bicarbonate powder, the first solution is one of water, barium hydroxide solution, ammonium chloride solution, ammonium nitrate solution, ammonium acetate solution, acetic acid and hydrochloric acid, and the first solution is barium hydroxide solution and the solid substance is ammonium chloride powder.

A first puncturing part 104 is disposed below the storage cell 103, the first puncturing part 104 is used for puncturing the bottom of the storage cell 103, and specifically, the first puncturing part 104 is disposed on the bottom wall inside the housing 101.

During the use, the hemostasis subassembly pastes at the position of bleeding, is equipped with the barium hydroxide solution in the storage check 103, is equipped with the ammonium chloride powder in the reaction chamber 102, presses storage device, and first puncture portion 104 punctures the bottom of storage check 103, and the barium hydroxide solution gets into reaction chamber 102 and produces endothermic chemical reaction with the ammonium chloride powder, reduces the temperature of reaction chamber 102 fast, reduces the temperature that the patient bleeds the position, plays the effect of cold compress, alleviates patient's painful sense, stanchs fast.

The side walls and the bottom wall of the housing are provided with an interlayer 113 for storing a sulphate solution, and the bottom wall inside the housing is provided with a pierceable sealing film 114. In use, the interlayer 113 is filled with a sulfate solution, such as sodium sulfate, potassium sulfate, or magnesium sulfate solution, the safety component is used to pierce the sealing film 114, and the sulfate solution reacts with barium hydroxide or barium chloride to form non-toxic barium sulfate. Specifically, the safety assembly includes a second puncturing portion 115 and a compression spring 116, the compression spring 116 is sleeved on the upper end of the second puncturing portion 115, the second puncturing portion 115 penetrates through the storage device, and the second puncturing portion 115 is used for puncturing the sealing film 114.

The utility model discloses an in some embodiments, the lateral wall on second puncture portion 115 upper portion is provided with the spacing portion of annular, and compression spring 116 sets up in the below of the spacing portion of annular, and compression spring 116's upper end is connected with the spacing portion of annular, and compression spring 116's lower extreme is connected with storage device's top, presses down second puncture portion 115 and will seal the membrane 114 and puncture the back, and compression spring 116 is with second puncture portion 115 jack-up.

The utility model discloses an in some embodiments, it has two first puncture parts 104's high difference at least in the first puncture part 104 corresponding to each storage check 103 to the mode of pressing down replaces once only pressing down storage device to the mode of pressing down on earth to press down storage device by stage, presses down one section distance of storage device earlier, punctures partial storage check 103, and one section distance of storage device is pressed down again in next stage, punctures partial storage check 103 again. In some examples, the heights of the first puncturing parts 104 corresponding to the storage grids 103 are gradually decreased, so that puncturing of one storage grid 103 every time is realized, multiple intermittent cold compress on a bleeding position is realized through the puncturing mode one by one, and the cold compress time can be prolonged by prolonging the duration of the refrigeration reaction. For example, the number of the cells 103 is set to two, and accordingly, the number of the first puncturing parts 104 is set to two, and two first puncturing parts 104 are set to one higher and one lower.

In some embodiments of the present invention, the upper portion of the storage device is provided with a buffer chamber 105, the reaction chamber 102 is communicated with the buffer chamber 105 through an airflow channel 106, the gas generated in the reaction chamber 102 enters the buffer chamber 105 through the airflow channel 106, in some examples, the number of the storage cells 103 is set to two, and the airflow channel 106 is formed in the region between the two storage cells 103. Further, the buffer cavity 105 is provided with an absorbent for absorbing the gas generated by the reaction, the absorbent is set to be anhydrous calcium chloride powder and/or sodium hydroxide powder, the anhydrous calcium chloride is used for absorbing ammonia gas, and the sodium hydroxide is used for absorbing carbon dioxide. In particular, for absorbing gases generated in the reaction chamber 102. The anhydrous calcium chloride and ammonia gas are subjected to a complex reaction to generate a solid complex, so that the irritant ammonia gas is prevented from leaking, the air pressure in the reaction cavity 102 is reduced, and the storage device is prevented from being broken due to overlarge air pressure. In some examples, in order to prevent powder from caking, increase the contact area of chemical reaction, and improve absorption efficiency, cotton for mixing with the absorbent is disposed in the buffer chamber 105, or the absorbent is layered by cotton cloth in the buffer chamber 105.

The utility model discloses a some embodiments are provided with the layer 107 that absorbs water in the buffer memory chamber 105, and the layer 107 that absorbs water sets up the port at airflow channel 106, specifically, and the layer 107 that absorbs water includes sponge or cotton for absorb the water that produces in the reaction chamber 102, the layer 107 that absorbs water simultaneously also can reduce the bubble that produces in the reaction chamber 102 and get into buffer memory chamber 105. Further, the surface of the water-absorbing layer 107 is provided with a non-woven fabric to separate the absorbing material from the water-absorbing layer 107, prevent the absorbing material from being wetted, and keep the buffer chamber 105 dry.

The utility model discloses an in some embodiments, be provided with non-woven fabrics or foraminiferous baffle in airflow channel 106, perhaps airflow channel 106's upper end port department is provided with non-woven fabrics or foraminiferous baffle, specifically, the baffle sets up to the plastic slab. The bubbles generated in the reaction chamber 102 are punctured by the non-woven fabric or the perforated partition plate to prevent the bubbles from entering the buffer chamber 105 and blocking the air flow passage 106.

The utility model discloses an in some embodiments, storage device's outer wall passes through the interior wall connection of in-connection portion 108 and shell 101, and in-connection portion 108 sets up to soft film to seal the gap between storage device outer wall and the shell 101 inner wall, avoid the chemical matter in the reaction chamber 102 to flow to external environment. Further, the side wall of the water absorbing layer 107 is provided with a first check valve 109, the reaction chamber 102 is communicated to the water absorbing layer 107 through the first check valve 109, and gas generated in the reaction chamber 102 can also enter the water absorbing layer 107 through the first check valve 109.

The utility model discloses an in some embodiments, storage device's outer wall passes through outer connecting portion 110 to be connected with the outside at shell 101 top, and outer connecting portion 110 sets up to soft film, constitutes the overflow chamber between inner connecting portion 108 and the outer connecting portion 110, and the lateral wall in buffer memory chamber 105 is provided with second check valve 111, and buffer memory chamber 105 communicates to the overflow chamber through second check valve 111. When the excess ammonia gas cannot be completely absorbed by the anhydrous calcium chloride in the buffer chamber 105, the ammonia gas enters the overflow chamber through the second check valve 111, thereby reducing the pressure of the buffer chamber 105.

In some embodiments of the present invention, the top and the side wall of the storage device are made of rigid plastic, and the bottom of the storage grid 103 is sealed by rubber or plastic film, so that the first piercing part 104 can pierce conveniently.

In some embodiments of the present invention, the top of the first piercing part 104 is provided with a sharp part, and further, the first piercing part 104 is provided with a conical structure. In some examples, the first piercing part 104 has a plurality of holes on the upper portion thereof, and the solution in the storage compartment 103 flows into the reaction chamber 102 through the holes and the piercing points.

In some embodiments of the present invention, the outer side of the storage device and the inner wall of the housing 101 are fixed by a fixing structure. Specifically, shell 101 inner wall is provided with the barb, and storage device's outer wall is equipped with the barb, and the barb is triangle-shaped. When hemostasis subassembly did not use, storage device passes through the configuration installation setting of barb in the top of first puncture portion 104, presses the back, can prevent storage device rebound through the configuration installation of barb, and the chemical substance lasts the reaction in storage check 103 and the reaction chamber 102 is ensured to fixed storage device's position.

In the description herein, references to the terms "one embodiment," "some examples," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" or the like, if any, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A hemostasis assembly for use in venous blood collection, comprising: comprises that

The device comprises a shell (101), wherein the side wall and the bottom wall of the shell are provided with interlayers (113) for storing sulfate solution, and the bottom wall in the shell is provided with a pierceable sealing film (114);

the storage device is arranged in the shell (101) in a vertically movable mode, a reaction cavity (102) is formed between the bottom of the storage device and the bottom of the shell (101), the reaction cavity (102) is used for storing solid substances participating in a refrigeration reaction, at least two storage grids (103) are arranged in the storage device, the storage grids (103) are used for storing a first solution participating in the refrigeration reaction, a first puncture part (104) is arranged below the storage grids (103), the first puncture part (104) is used for puncturing the bottom of the storage grids (103), and the first puncture part (104) is arranged on the bottom wall inside the shell (101);

the safety assembly comprises a second puncture part (115) and a compression spring (116), the compression spring (116) is sleeved at the upper end of the second puncture part (115), the second puncture part (115) penetrates through the storage device, and the second puncture part (115) is used for puncturing the sealing film (114).

2. A hemostasis assembly for venous blood collection as defined in claim 1, wherein: at least two of the first piercing portions (104) corresponding to the respective storage cells (103) have different heights.

3. A hemostasis assembly for venous blood collection as defined in claim 2, wherein: the heights of the first piercing portions (104) corresponding to the respective storage cells (103) are sequentially decreased.

4. Hemostatic assembly for venous blood collection according to claim 2 or 3, wherein: the upper part of the storage device is provided with a buffer cavity (105), and the reaction cavity (102) is communicated with the buffer cavity (105) through a gas flow channel (106).

5. The hemostatic assembly for venous blood collection according to claim 4, wherein: the lower part of the buffer cavity (105) is provided with a water absorption layer (107), and the water absorption layer (107) is arranged at the port of the airflow channel (106).

6. The hemostatic assembly for venous blood collection according to claim 4, wherein: be provided with non-woven fabrics or foraminiferous baffle in airflow channel (106), perhaps airflow channel's (106) upper end port department is provided with non-woven fabrics or foraminiferous baffle.

7. A haemostatic assembly for venous blood collection according to claim 5, wherein: the outer wall of the storage device is connected with the inner wall of the shell (101) through an inner connecting part (108) so as to seal a gap between the outer wall of the storage device and the inner wall of the shell (101), and the inner connecting part (108) is set to be a soft film.

8. The hemostatic assembly for venous blood collection according to claim 7, wherein: the side wall of the water absorption layer (107) is provided with a first one-way valve (109), and the reaction cavity (102) is communicated to the water absorption layer (107) through the first one-way valve (109).

9. The hemostatic assembly for venous blood collection according to claim 7, wherein: the outer wall of the storage device is connected with the outer side of the top of the shell (101) through an outer connecting portion (110), the outer connecting portion (110) is set to be a soft thin film, an overflow cavity is formed between the outer connecting portion (110) and the inner connecting portion (108), a second one-way valve (111) is arranged on the side wall of the buffer cavity (105), and the buffer cavity (105) is communicated to the overflow cavity through the second one-way valve (111).

10. A hemostasis assembly for venous blood collection as defined in claim 1, wherein: the lateral wall on second puncture portion (115) upper portion is provided with the spacing portion of annular, compression spring (116) set up the below of the spacing portion of annular, compression spring (116) the upper end with the spacing portion of annular is connected, compression spring (116) the lower extreme with storage device's top is connected.