CN112603441B

CN112603441B - A hemostasis subassembly that is used for cold compress after blood sampling of vein

Info

Publication number: CN112603441B
Application number: CN202011447465.3A
Authority: CN
Inventors: 许波; 许重远; 陈洁; 肖敏; 蒋琳; 罗小琴
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: 2022-08-09
Anticipated expiration: 2040-12-11
Also published as: CN112603441A

Abstract

The invention discloses a hemostasis assembly for cold compress after venous blood collection, which comprises a shell, a storage device and a safety assembly, wherein the shell is provided with an interlayer, a sulfate solution is filled in the interlayer, and a sealing film is arranged on the bottom wall in the shell; a reaction cavity is formed between the bottom of the storage device and the bottom of the shell, solid substances are filled in the reaction cavity, at least two storage grids are arranged in the storage device, a first solution is filled in the storage grids, and a first puncture part is arranged below the storage grids; 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 temperature reduction is too low or the patient cannot receive cold stimulation and the like, the safety component is pressed to pierce the sealing film, and the sulfate enables the refrigeration reaction to be stopped emergently.

Description

A hemostasis subassembly that is used for cold compress after blood sampling of vein

Technical Field

The invention relates to the technical field of medical instruments, in particular to a hemostatic assembly for cold compress after venous blood collection.

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.

Disclosure of Invention

In order to solve at least one of the technical problems and improve the hemostatic effect, the invention provides a hemostatic assembly for cold compress after venous blood collection, which adopts the following technical scheme:

the hemostasis assembly for cold compress after venous blood collection comprises a shell, a storage device and a safety assembly, wherein an interlayer is arranged on the side wall and the bottom wall of the shell, a sulfate solution is stored in the interlayer, and a sealing film capable of being punctured is arranged on the bottom wall in the shell; 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, solid substances used for participating in a refrigeration reaction are stored in the reaction cavity, at least two storage grids are arranged in the storage device, a first solution used for participating in the refrigeration reaction is stored in each storage grid, 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 inside 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 each of the storage compartments have different heights.

In some embodiments of the present invention, the heights of the first puncturing parts corresponding to the storage compartments are sequentially decreased.

In some embodiments of the present invention, a buffer chamber is disposed at an upper portion of the storage device, the buffer chamber is disposed with an absorbent, and the reaction chamber is communicated with the buffer chamber through an air flow channel.

In some embodiments of the present invention, a water absorption layer is disposed at a lower portion of the buffer cavity, and the water absorption layer is disposed at a port of the airflow channel.

In some embodiments of the present invention, a non-woven fabric or a partition plate with holes is disposed in the air flow channel, or a non-woven fabric or a partition plate with holes is disposed at an upper end port of the air flow channel.

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 close a gap between the outer wall of the storage device and the inner wall of the housing, and the inner connecting portion is a soft film.

In some embodiments of the present invention, a first check valve is disposed on a side wall of the water absorption layer, and the reaction chamber is communicated to the water absorption layer through the first check valve.

In some embodiments of the present invention, an outer wall of the storage device is connected to an outer side of the top of the housing through an outer connecting portion, the outer connecting portion is a soft film, an overflow cavity is formed between the outer connecting portion and the inner connecting portion, a second check valve is disposed on a side wall of the buffer cavity, and the buffer cavity is communicated to the overflow cavity through the second check valve.

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

The embodiment of the invention has at least the following beneficial effects: the hemostasis subassembly is arranged the position of bleeding in, presses storage device a section distance, and partial first puncture portion punctures the storage check that corresponds, and solution one of them and solid-state material produce the refrigeration reaction, and storage device continues to be pressed in quick cold compress hemostasis, and another partial first puncture portion punctures the storage check that corresponds, continues to produce the refrigeration reaction, can prolong the hemostatic time of cold compress, and hemostatic effect is better. If the temperature is too low or the patient cannot receive 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 solid substance, so that the refrigeration reaction is stopped emergently, in addition, after the refrigeration reaction is normally finished, the sealing film can be punctured through the safety component, and the sulfate solution absorbs reaction products to prevent overflow. The invention 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 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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to 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 in an orientation or positional relationship indicated based on the drawings, it is merely for convenience of description and simplicity of description, and it is not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, is not to be considered 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 should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention relates to a hemostasis assembly for cold compress after venous blood collection, which is placed at a bleeding position for hemostasis by pressing, and is simple, convenient and 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 shell 101, solid substances for participating in the refrigeration reaction are filled in the reaction cavity 102, at least two storage grids 103 are arranged in the storage device, and a first solution for participating in the refrigeration reaction is filled in the storage grids 103. 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, presses storage device, and first puncture part 104 punctures the bottom of storage check 103, and 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 of patient's position of bleeding, plays the effect of cold compress, alleviates the painful sense of patient, stanchs fast.

The side walls and the bottom wall of the housing are provided with an interlayer 113, the interlayer 113 is filled with a sulfate solution, such as a sodium sulfate, potassium sulfate or magnesium sulfate solution, and the bottom wall in the housing is provided with a sealing film 114 which can be punctured. When the safety device is used, the safety device is used for puncturing the sealing film 114, and the sulfate solution reacts with barium hydroxide or barium chloride to generate nontoxic 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.

In some embodiments of the present invention, an annular position-limiting portion is disposed on a sidewall of an upper portion of the second puncturing portion 115, the compression spring 116 is disposed below the annular position-limiting portion, an upper end of the compression spring 116 is connected to the annular position-limiting portion, a lower end of the compression spring 116 is connected to a top portion of the storage device, and the compression spring 116 jacks up the second puncturing portion 115 after the second puncturing portion 115 is pressed to puncture the sealing membrane 114.

In some embodiments of the present invention, at least two first puncturing parts 104 of the first puncturing parts 104 corresponding to each cell 103 have different heights, and the storage device is pressed by a staged pressing manner instead of a one-time pressing manner, such that a portion of the cell 103 is punctured by pressing the storage device for a certain distance, and a portion of the cell 103 is punctured by pressing the storage device for a certain distance at the next stage. 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 a gas flow channel 106, gas generated in the reaction chamber 102 enters the buffer chamber 105 through the gas flow channel 106, in some examples, the number of the storage cells 103 is two, and the region between the two storage cells 103 forms the gas flow channel 106. 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.

In some embodiments of the present invention, a water-absorbing layer 107 is disposed in the buffer cavity 105, and the water-absorbing layer 107 is disposed at the port of the airflow channel 106, specifically, the water-absorbing layer 107 includes sponge or cotton for absorbing water generated in the reaction cavity 102, and the water-absorbing layer 107 can also reduce bubbles generated in the reaction cavity 102 from entering the buffer cavity 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.

In some embodiments of the present invention, a non-woven fabric or a perforated partition is disposed in the gas flow channel 106, or a non-woven fabric or a perforated partition is disposed at an upper end port of the gas flow channel 106, and specifically, the partition is a plastic plate. 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.

In some embodiments of the present invention, the outer wall of the storage device is connected to the inner wall of the casing 101 through the inner connection portion 108, and the inner connection portion 108 is a soft film to close the gap between the outer wall of the storage device and the inner wall of the casing 101, so as to prevent the chemical substance in the reaction chamber 102 from flowing to the 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.

In some embodiments of the present invention, the outer wall of the storage device is connected to the outside of the top of the casing 101 through an outer connecting portion 110, the outer connecting portion 110 is a soft film, an overflow cavity is formed between the inner connecting portion 108 and the outer connecting portion 110, a second check valve 111 is disposed on the side wall of the buffer cavity 105, and the buffer cavity 105 is communicated to the overflow cavity through the 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 side walls of the storage device are made of rigid plastic, and the bottom of the storage compartment 103 is sealed with rubber or plastic film to facilitate puncturing by the first puncturing part 104.

In some embodiments of the present invention, the top of the first piercing part 104 is provided with a sharp portion, and further, the first piercing part 104 is provided with a tapered 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 fastening 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.

While the embodiments of the present invention have been described in detail with reference to the drawings, 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 subassembly that is used for cold compress after blood sampling of vein which characterized in that: comprises that

The device comprises a shell (101), wherein an interlayer (113) is arranged on the side wall and the bottom wall of the shell, a sulfate solution is stored in the interlayer (113), and a sealing film (114) capable of being punctured is arranged on the bottom wall in the shell;

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

the safety device comprises a second puncture part (115) and a compression spring (116), wherein the compression spring (116) is sleeved on 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);

wherein at least two of the first piercing portions (104) corresponding to each of the storage cells (103) have different heights; a buffer cavity (105) is arranged at the upper part of the storage device, an absorbing substance is arranged in the buffer cavity (105), and the reaction cavity (102) is communicated with the buffer cavity (105) through an airflow channel (106); the outer wall of the storage device is connected with the inner wall of the shell (101) through an inner connecting part (108) to seal a gap between the outer wall of the storage device and the inner wall of the shell (101), the outer wall of the storage device is connected with the outer side of the top of the shell (101) through an outer connecting part (110), and an overflow cavity is formed between the outer connecting part (110) and the inner connecting part (108).

2. A haemostatic assembly for post-venous blood collection cold compress according to claim 1, characterised in that: the heights of the first piercing portions (104) corresponding to the respective storage cells (103) are sequentially decreased.

3. A haemostatic assembly for cold compress after venous blood collection according to claim 1 or 2, 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).

4. A haemostatic assembly for post-venous blood collection cold compress according to claim 1, characterised in that: a non-woven fabric or a partition board with holes is arranged in the air flow channel (106), or the upper end port of the air flow channel (106) is provided with the non-woven fabric or the partition board with holes.

5. A haemostatic assembly for post-venous blood collection cold compress according to claim 1, characterised in that: the inner connecting part (108) is provided as a soft film.

6. A haemostatic assembly for post venous blood collection cold compress according to claim 3, 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).

7. A haemostatic assembly for post-venous blood collection cold compress according to claim 1, characterised in that: the outer connecting portion (110) is a soft film, 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).

8. A haemostatic assembly for post-venous blood collection cold compress according to claim 1, characterised in that: 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.