CN110680441A - Electronic compression type radial artery hemostat - Google Patents
Electronic compression type radial artery hemostat Download PDFInfo
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- CN110680441A CN110680441A CN201910958137.0A CN201910958137A CN110680441A CN 110680441 A CN110680441 A CN 110680441A CN 201910958137 A CN201910958137 A CN 201910958137A CN 110680441 A CN110680441 A CN 110680441A
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- compression
- pressure
- radial artery
- hemostat
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding
Abstract
The invention discloses an electronic compression type radial artery hemostat, which comprises: the pressure sensor comprises a shell, a compression assembly, an adjustment assembly and a pressure sensing assembly. The oppression subassembly is rectangular shape, including transparent oppression piece and silica gel oppression piece. One side of the transparent pressing block is protruded downwards to form a protruding part. A silica gel compression block is arranged below the other side of the transparent compression block without the convex part; the bellying is highly unanimous with silica gel oppression piece to make the bellying oppress at the puncture point, on the radial artery of the upper reaches of puncture point is oppressed to silica gel oppression piece. The invention improves the comfort level of the wearing hemostat, and simultaneously facilitates medical staff to visually observe the hemostatic effect so as to timely and accurately adjust the compression pressure of the puncture point.
Description
Technical Field
The application relates to the technical field of medical auxiliary equipment, in particular to a novel electronic compression type radial artery hemostat.
Background
Percutaneous coronary artery interventional therapy is one of the most rapidly developed technologies in the field of cardiovascular disease treatment in recent years, the feasibility and the superiority of the percutaneous coronary artery interventional therapy are gradually recognized, and with the improvement of the technical operation level, more and more doctors and patients tend to adopt the percutaneous coronary artery path for interventional therapy, and the percutaneous coronary artery interventional therapy has the advantages of small wound, convenience in local dressing, few complications, small pain of patients, quick recovery and the like. The compression hemostasis effect of the postoperative radial artery puncture part is directly related to postoperative rehabilitation of a patient, and local bleeding and hematoma are easily caused if the compression time of the postoperative radial artery puncture opening is too short or the pressure is too low; if the compression time is too long or the pressure is too high, the blood circulation of the limb at the operation side is blocked, and adverse effects such as limb swelling, pain, vagus nerve reflex, acute radial artery occlusion and the like are caused. Compression hemostats are generally classified into a screw compression hemostat and an air pressure hemostat.
The spiral compression hemostat has the advantages that compression bleeding is reliable, but because the spiral position is right above a hemostasis point, a blind area can be generated at the hemostasis position, whether blood stops or not can not be observed in time, the hemostasis time is long, generally 6-10 hours, and the air permeability of the wrist strap is poor, so that great pain and panic are caused to a patient.
The other pneumatic hemostat can visually see bleeding points, but needs to be aerated at intervals due to the sealing problem, so that the workload of medical staff is increased, meanwhile, the pneumatic hemostat has no detection device, the air pressure can be too large or too small, the pain of a patient can be increased due to the too large air pressure, and the hemostatic effect cannot be achieved due to the too small air pressure. In addition, the prior art adopts a film pressure sensor or a sheet piezoelectric ceramic wafer, and the film pressure sensor or the sheet piezoelectric ceramic wafer can only display whether pressure exists or not and cannot reflect the current pressure accurate numerical value in real time. The film pressure sensor or the sheet piezoelectric ceramic wafer belongs to a shrapnel form, the shrapnel changes pressure after a long time, the compression pressure can be adjusted at any time, and the change of the pressure is irregular and uncontrollable. Therefore, the radial artery hemostat with good hemostasis effect, comfortable wearing and convenient observation and pressure regulation has extremely important significance for successful operation.
Disclosure of Invention
The invention aims to solve the problems that the hemostat in the prior art has poor hemostasis effect, is uncomfortable to wear, is inconvenient to observe and adjust, does not have an additional auxiliary function and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electronic compression type radial artery hemostat, comprising: the device comprises a shell, a compression assembly, an adjusting assembly and a pressure sensing assembly, wherein the compression assembly is used for contacting and compressing the puncture point; the pressure sensing assembly is used for detecting the compression pressure provided by the compression assembly; the adjusting assembly is used for adjusting the compression pressure provided by the compression assembly; the oppression subassembly is rectangular shape, and one end of this rectangular shape is made by transparent material for oppress and observe the puncture point, the other end oppression of this rectangular shape is in on the radial artery of the upper reaches of puncture point.
Preferably, the pressing assembly comprises a transparent pressing block, the transparent pressing block is in a strip shape, and one side of the transparent pressing block protrudes downwards to form a protruding part; moreover, a silica gel pressing block is arranged below the other side of the transparent pressing block without the bulge; the bellying oppresses the piece highly unanimous with silica gel to make the bellying oppresses the puncture point, silica gel oppresses the piece oppression and is in on the radial artery of the upper reaches of puncture point.
Preferably, a bulls-eye mark is arranged at the center of the convex part of the transparent pressing block.
Preferably, the pressure sensing assembly includes a display screen located at a location upstream of the puncture site for displaying the detected compression pressure.
Preferably, the pressure sensing assembly comprises a pressure sensor and a processor, wherein the pressure sensor is used for sensing the compression pressure and feeding the generated pressure signal back to the processor, and the processor converts the pressure signal into a compression pressure number which is displayed in the display screen in real time.
Preferably, the processor low-pass filters the single pressure signal acquired by the pressure sensor to remove noise.
Preferably, the haemostat still include with treater electric connection's alarm, the treater according to pressure sensor feeds back pressure signal controls the alarm reports to the police.
Preferably, the processor presets different puncture point states based on the magnitude of the compression pressure and the time of applying the compression pressure, and controls the alarm to generate different alarm modes according to the detected different puncture point states.
Preferably, the hemostat further comprises a key electrically connected with the processor, the key is used for receiving operation of a user to generate an input signal, and the processor performs resetting and starting of timing according to the input signal.
Preferably, the processor further sets a preset condition and an alarm mode of the puncture point state according to the input signal.
Preferably, the hemostat further comprises a wireless communication module electrically connected with the processor for transmitting signals received or generated by the processor.
Preferably, the adjusting part is located pressure sensing part top, including adjusting nut, pressure screw rod and drive nut, adjusting nut is located the shell upper end, drive nut is located inside the adjusting nut, there is a spring drive nut and pressure screw rod bottom, when rotatory adjusting nut, drive nut can drive the pressure screw rod and remove.
Preferably, a plurality of springs are installed inside the housing above the transparent pressing block for preventing a pressing position change caused by the movement.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. the overall structural design of the invention improves the comfort level of wearing the hemostat, and simultaneously, medical staff can observe the hemostatic effect visually, so as to adjust the compression pressure of the puncture point timely and accurately.
2. The invention realizes the signal filtering algorithm, avoids the misjudgment of judging pressure by only adopting certain or a certain small segment of pressure data at present, and improves the reliability of the hemostat.
3. The invention adopts the FPGA as the processor, realizes the functions of timing and reminding, and the functions of alarming for various puncture points, and can greatly improve the use feeling and the convenience of the hemostat by wirelessly feeding back the monitoring result.
Drawings
For a better understanding of the present invention, reference will now be made in detail to the following drawings, in which:
FIG. 1 is a dorsal view of a radial artery hemostat according to one embodiment of the present invention;
FIG. 2 is a front view of the radial artery hemostat of the embodiment of FIG. 1 showing a compression position of the compression assembly;
FIG. 3 is a front view of the radial artery hemostat of the embodiment of FIG. 1 showing the overall structure thereof;
fig. 4 is an exploded view of the embodiment shown in fig. 1-3.
Detailed Description
The radial artery provided by the invention utilizes the principle of biological hemostasis, activates blood coagulation factors and blood platelets by a compression method, and completes compression hemostasis of a puncture point of the radial artery by a series of enzymatic reactions.
The invention discloses a radial artery hemostat which is an electronic hemostat for detecting compression pressure. The housing serves as a frame member for connecting or accommodating the respective parts. The compression assembly is in direct contact with and compresses the puncture site (part of the bleeding site) which in practice is typically the puncture site of a radial artery procedure, but the invention is not so limited and may be applied to similar puncture sites in similar parts of the body.
The pressure sensing assembly in the invention refers to an assembly for detecting the compression pressure provided by the compression assembly, and comprises the functions of sensing, processing, displaying and the like of signals. And the adjusting component is used for adjusting the compression pressure provided by the compression component. The pressure sensing assembly and the adjusting assembly are integrally designed. This will be explained in detail below.
In order to solve the problem that the compression pressure applied to the puncture point of the existing hemostat is overlarge, the compression assembly is designed to be in a long strip shape. In this way, the elongated compression assembly may simultaneously compress the bleeding site and the radial artery upstream of the bleeding site. Because the upstream of the bleeding position (puncture point) is compressed, the bleeding pressure of the puncture point can be reduced, so that the compression pressure on the puncture point can be reduced, the compression time can be obviously shortened, the pain of a patient is reduced, and the comfort level of the patient wearing the hemostat can be greatly improved.
In addition, one end of the elongated pressing member of the present invention is made of a transparent material, and the portion is used for pressing the puncture point, so that the condition of the puncture point can be observed. The other end of the strip need not be of transparent material but may be of a more comfortable material to the human body to press against the radial artery upstream of the bleeding site. Because the compression part of the puncture point (puncture point or bleeding position) can be made of high-transparency medical materials, medical staff can observe the hemostatic effect visually, and the compression pressure on the puncture point can be adjusted timely and accurately.
In particular, the compression assembly of the present invention may include a transparent compression block and a silicone compression block. The transparent pressing block is in a strip shape, and one side of the transparent pressing block protrudes downwards to form a protruding part; the lower part of the other side of the transparent pressing block, which is not provided with the bulge, is provided with the silica gel pressing block. The bellying oppresses with silica gel piece highly uniform to make the bellying oppresses and is in the puncture point, silica gel oppresses the piece oppression on the radial artery of the upper reaches of puncture point.
Preferably, a bullseye flag is provided in the middle of the raised portion of the transparent compression block, which will facilitate quick alignment of the puncture port by medical personnel. The bulls-eye mark may be a circle, a cross, or the like, may be a pattern of protrusions or depressions provided on a transparent material, or may be a painted color or the like.
More preferably, the pressure sensing assembly comprises a pressure sensor, a processor and a display screen, wherein the pressure sensor is used for sensing the compression pressure and feeding a generated pressure signal back to the processor, and the processor converts the pressure signal into a compression pressure number which is displayed in the display screen in real time. The pressure sensing assembly includes a display screen located at an upstream portion of the puncture site for displaying detection of the compression pressure.
The present invention preferably implements a processor using a Field Programmable Gate Array (FPGA). Because the phase-locked loop is integrated in the FPGA, the frequency of an external clock can be doubled, the core frequency can be improved, and the program in the FPGA runs in parallel, so that the hemostat has the capability of processing more complex functions, and can realize more functions by fast, real-time and parallel processing capability while detecting and displaying pressure. For example, an alarm may be issued when the presence of multiple puncture points is detected in the patient. Also, a blood stopper may provide timing and reminder functions. When the pressing time reaches the set time, the patient is prompted to start decompression.
As a specific implementation mode, aiming at different states of the puncture points, the hemostat achieves the purposes of timing reminding or puncture point alarming by matching with alarming devices such as a loudspeaker and the like through the functions of timing and pressure measurement of a processor realized by an FPGA. The three puncture point states include, for example:
A. the compressed puncture site requires decompression;
B. the pressed puncture point needs to be pressed;
C. the depressed puncture site requires pressurization.
The alarm device (inside the casing, not shown) may be a speaker, a buzzer, a vibrator, an LED lamp, or may be implemented by displaying corresponding characters or images directly through a display screen. The present invention is not limited to the type and number of alarms.
Preferably, the hemostat further comprises a key (inside the housing, not shown in the figure) electrically connected with the processor, the key is used for receiving an input signal generated by a user operation, and the processor performs timing reset and start according to the input signal. The processor also sets the preset condition and the alarm mode of the puncture point state according to the input signal.
For different puncture point states, the puncture point alarm device can control the alarm device through the processor to generate different alarm modes. For example, different sounds are generated, different modes of vibration are generated, different LED lamps are displayed or the LED lamps are made to flash at different frequencies, and different prompt messages can be displayed on the display screen.
Preferably, the present invention further comprises a wireless communication module (inside the housing, not shown in the figure), the wireless communication module is electrically connected with the processor, and the processor can transmit signals received or generated by the processor to the external electronic device through the wireless communication module. Therefore, the electronic equipment of the doctor (or the nurse station) can monitor the state of the hemostat in real time, so that the real-time state information of the puncture point of the patient can be obtained, the doctor (or the nurse station) can monitor the hemostasis stage and situation of each patient in real time, and the doctor can react to the hemostasis stage and situation in the first time according to the received information.
The signals received by the processor include pressure signals, signals generated by the processor include timing signals and calculated puncture status signals, and the like.
In contrast, the single chip microcomputer adopted in the prior art has the defects of low operation speed, only serial operation and control and the like, so that when the existing hemostat detects that a patient has various puncture points, the alarm needs to be sent out serially according to the internal priority of the single chip microcomputer, and even the alarm can be sent out only to the first level with the highest priority.
In addition, the FPGA processor can also realize the filtering of signals, namely, the low-pass filtering is carried out on the single pressure signals collected by the pressure sensor so as to eliminate noise. Meanwhile, preferably, the acquired data utilizes a mean value filtering algorithm, so that misjudgment of pressure completion only by adopting certain or a certain small segment of pressure data at present is avoided, and the reliability of the hemostat is improved.
The invention is further described with reference to a specific embodiment in conjunction with the accompanying drawings.
Fig. 1 is a back view of a radial artery hemostat according to one embodiment of the present invention. Fig. 2 is a front view of the radial artery hemostat of the embodiment of fig. 1, and fig. 2 shows a compression position of the compression assembly.
As shown in fig. 1, the main body of the electronic compression type radial artery hemostat of the embodiment is in a strip shape, and tapes are disposed on both sides of the main body in the width direction. It is the back of the patient, the site shown in figure 1, that is used to contact the patient. The contact part comprises a transparent pressing block 1 and a silica gel pressing block 5.
Fig. 2 is a front view thereof. As shown in fig. 2, the electronic compression type radial artery hemostat of the embodiment is worn on the wrist and is bound on the wrist of the patient by using the adhesive tape 2 of the self-adhesive non-woven fabric. The shell of the rectangular hemostat is also in a rectangular shape, one end of the shell is provided with a window, and the opening position is aligned with the transparent compression block, so that medical staff can directly observe the compression position of the transparent compression block through the window. In practical application, medical staff can observe the hemostatic effect after the puncture point is pressed. The transparent compression block of this embodiment has the bulls-eye mark 14 so that the bulls-eye mark can be easily aligned with the puncture A through the window for observation when the hemostat is worn.
The other end of the shell opposite to the transparent compression block is provided with a liquid crystal display screen 4, and the current compression pressure can be displayed on the liquid crystal display screen in real time. Above the middle of the housing is an adjustment nut, which is part of the adjustment assembly of the present invention. Therefore, the adjusting nut 3 is rotated, and the transparent compression block 1 and the silica gel compression block 5 can be respectively pressed on the puncture point (puncture opening) A and the radial artery at the upstream of the puncture point. Because transparent oppression piece 1 can look directly at the puncture point, whether the observation puncture point A has the continuation to bleed, and liquid crystal display 4 also can show current pressure value in real time simultaneously, and medical staff can audio-visually see pressure variation.
Fig. 3 is a front view of the radial artery hemostat of the embodiment shown in fig. 1, showing the overall structure thereof. Fig. 4 is an exploded view of the embodiment shown in fig. 1-3.
As shown in fig. 3 and 4, the silica gel pressing block 5 is adhered to the transparent pressing block 1, and the transparent pressing block 1 is made of transparent hard medical plastics.
The pressure sensor 6 is also arranged on the transparent compression block 1; meanwhile, the transmission nut 7 is installed in the adjusting nut 5, when the adjusting nut is rotated, the transmission nut 7 can drive the pressure screw rod 8 to move, the bottom of the pressure screw rod 8 is in contact with the pressure sensor 6, the pressure sensor 6 can conduct pressure to the transparent pressing block 1, the transparent pressing block 1 can transmit pressing force to the puncture port A and the silica gel pressing block 5 respectively, and the hemostatic effect is achieved.
5 springs can prevent the bleeding caused by inaccurate oppression of the puncture point which is caused by the movement of the patient, so that the hemostatic effect is influenced.
In the pressing process, the pressure sensor 6 also feeds back the sensed pressure signal to the chip 10 (processor), the chip 10 displays the real-time pressing pressure in a digital form through the liquid crystal display 4 through electronic data conversion, and the shell 9 connects the pressure screw 8, the transparent pressing block 1, the adjusting nut 3 and other accessories. Before connection, a first spring 11 is respectively placed into the pressure screw 8 and a second spring are respectively placed into two sides of the transparent pressing block 1, and then connection is carried out. Finally, the silica gel wrist bands 13 are connected to two sides of the shell 9, and the self-adhesive non-woven fabric adhesive tape 2 is adhered in the middle of the silica gel wrist bands 13. The wrist strap has latticed design, can improve the gas permeability, and skin can not produce allergy or uncomfortable when the patient wears, simultaneously because the wrist strap is done with the silica gel material, can wipe with liquid such as alcohol when having the bloodstain on the wrist strap.
In this embodiment, the chip 10 is implemented by an FPGA. And the shell also comprises a micro-speaker electrically connected with the FPGA. The speaker may generate different sounds. Therefore, the FPGA can control the loudspeaker to emit different sounds according to the timing of the FPGA and the pressure signal fed back from the pressure sensing assembly.
Specifically, with the hemostat of this embodiment, three states of the puncture point are defined in advance:
A. the depressed puncture site requires decompression.
State a may be determined by timing the compression pressure and the compression time, for example, by presetting a first time threshold value, and when the compression time maintained at the predetermined compression pressure reaches the first time threshold value, state a is reached.
B. The compressed puncture site needs to be finished.
State B may be determined by simply timing the compression time, for example, presetting a second time threshold, when the compression time reaches the second time threshold, it indicates that state B is reached.
C. The depressed puncture site requires pressurization.
State C may be confirmed by real-time detection of the compression pressure, which when detected is less than a predetermined pressure, indicates that state C has been reached.
Thus, the FPGA can be programmed to define, for example, different puncture states when different output ports of the FGPA output high signals. When the state A is detected, the FPGA sets the first I/O port to be at a high level and starts to send out a 'dripping' sound to remind a patient; when the compression state B is detected, the second I/O port of the FPGA is set to be at a high level, and a 'click' sound is sent out to remind a patient; when detecting C oppression state, FPGA's third I/O port sets to the high level to begin to send "gourmet powder" sound and remind the patient. Because all I/O work of FPGA are complementary interference, therefore first, second, third I/O port work independently each other, can become high level simultaneously, so this haemostat can accomplish puncture point warning simultaneously to through the doctor (or nurse station) that wireless communication module sent patient information and puncture point condition through wireless, doctor (or nurse station) can real-time supervision each patient's hemostasis stage, make medical personnel to different suggestion make corresponding processing method.
More preferably, in an embodiment, the case surface of the hemostat further includes a key (not shown), the key is electrically connected to a processor implemented by the FPGA, the hemostat timing and reminding function is implemented by using a self-contained phase-locked loop inside the FPGA and an incremental counter, a patient or a medical staff can reset and start the counter by pressing the key, the counter starts to count up, when the counter reaches a certain number (for example, 30 minutes), the hemostat immediately sets a high level to a certain I/O port of the FPGA, and starts to send a corresponding sound to remind the patient and the doctor. And the patient or doctor can process it immediately and then reset the counter by pressing a key.
In addition, the FPGA can also realize more settings of alarm time and alarm modes through design. Specifically, the first and second predetermined times may be set by the user through the input of the key and the display output of the display screen through the internal programming of the FGPA, and the alarm mode may be set, for example, the volume of the speaker, the sound of the alarm, etc., or the remote feedback detection of the hemostat state through the wireless communication module may be set.
Claims (13)
1. An electronic compression type radial artery hemostat, comprising: a housing, a compression assembly, an adjustment assembly, and a pressure sensing assembly, wherein,
the compression assembly is used for contacting and compressing the puncture point;
the pressure sensing assembly is used for detecting the compression pressure provided by the compression assembly;
the adjusting component is used for adjusting the compression pressure provided by the compression component;
the method is characterized in that:
the oppression subassembly is rectangular shape, and one end of this rectangular shape is made by transparent material for oppress and observe the puncture point, the other end oppression of this rectangular shape is in on the radial artery of the upper reaches of puncture point.
2. The electronic compression radial artery hemostat of claim 1, wherein the compression assembly comprises a transparent compression block having an elongated shape with a side protruding downward to form a protruding portion; moreover, a silica gel pressing block is arranged below the other side of the transparent pressing block without the bulge; the bellying oppresses the piece highly unanimous with silica gel to make the bellying oppresses the puncture point, silica gel oppresses the piece oppression and is in on the radial artery of the upper reaches of puncture point.
3. The electronic compression type radial artery hemostat of claim 2, wherein a bulls-eye mark is arranged at the center of the convex part of the transparent compression block.
4. The electronic compression radial artery hemostat of claim 1, wherein the pressure sensing assembly includes a display screen located upstream of the puncture site for displaying the detected compression pressure.
5. The electronic compression radial artery hemostat of claim 4, wherein the pressure sensing assembly includes a pressure sensor for sensing the compression pressure and feeding the resulting pressure signal back to the processor, which converts the pressure signal into a compression pressure number that is displayed in real time on the display screen.
6. The novel electronic compression radial artery hemostat of claim 5, wherein the processor low pass filters the single pressure signal acquired by the pressure sensor to eliminate noise.
7. The electronic compression radial artery hemostat of claim 5, wherein the hemostat further comprises an alarm electrically connected to the processor,
and the processor controls the alarm to give an alarm according to the pressure signal fed back by the pressure sensor.
8. The electronic compression radial artery hemostat of claim 7, wherein the processor presets different puncture point states based on the magnitude of the compression pressure and the time of applying the compression pressure, and controls the alarm to generate different alarm modes according to the detected different puncture point states.
9. The electronic compression radial artery hemostat of claim 8, wherein the hemostat further comprises a button electrically connected to the processor, the button being configured to receive a user's operation to generate an input signal, the processor being configured to reset and start the timing according to the input signal.
10. The electronic compression radial artery hemostat of claim 9, wherein the processor further sets the preset condition and the alarm mode for the state of the puncture point according to the input signal.
11. The novel electronic compression radial artery hemostat of claim 5, wherein the hemostat further comprises a wireless communication module electrically connected to the processor for transmitting signals received or generated by the processor.
12. The novel electronic compression type radial artery hemostat according to claim 1, wherein the adjusting component is located above the pressure sensing component and comprises an adjusting nut, a pressure screw and a transmission nut, the adjusting nut is located at the upper end of the housing, the transmission nut is located inside the adjusting nut, a spring is arranged at the bottom of the transmission nut and the pressure screw, and the transmission nut drives the pressure screw to move when the adjusting nut is rotated.
13. The electronic compression radial artery hemostat of claim 12, wherein a plurality of springs are installed inside the case above the transparent compression block for preventing a compression position change due to movement.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111281572A (en) * | 2020-03-09 | 2020-06-16 | 中国人民解放军总医院第八医学中心 | Comprehensive auxiliary device for cardiac interventional therapy |
| CN112294389A (en) * | 2020-11-18 | 2021-02-02 | 武汉大学 | Compression hemostasis device for puncture blood vessel |
| WO2023226596A1 (en) * | 2022-05-24 | 2023-11-30 | 赵圣刚 | Compressor |
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| CN112294389A (en) * | 2020-11-18 | 2021-02-02 | 武汉大学 | Compression hemostasis device for puncture blood vessel |
| WO2023226596A1 (en) * | 2022-05-24 | 2023-11-30 | 赵圣刚 | Compressor |
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