Positioning device, vessel compressor and vessel compression system

Abstract

The present application relates to the field of medical devices for inguinal artery puncture, in particular to a positioning device, a blood vessel compressor and a blood vessel compression system. The positioning device comprises a bottom positioning plate and at least one movable positioning plate; the movable positioning plate is arranged on the bottom positioning plate through a rotating shaft, and the movable positioning plate and the bottom positioning plate are arranged face to face; the bottom positioning plate is provided with a bottom positioning groove for positioning the blood vessel compressor; and the movable positioning plate is provided with a movable positioning groove for positioning an ultrasonic probe. By fixing the bottom positioning plate relative to the body surface of a patient and separating the movable positioning plate relative to the bottom positioning plate, the blood vessel compressor or the hemostasis fixing device can be clamped into the bottom positioning groove, so as to position the blood vessel compressor or the hemostasis fixing device relative to the body surface of the patient or the puncture part of the inguinal artery.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical devices for inguinal artery puncture, in particular to a positioning device, a blood vessel compressor and a blood vessel compression system. BACKGROUND

[0002] In the minimally invasive surgery of inguinal artery puncture, it is necessary to perform compression operation on the puncture part of the inguinal artery after the operation to prevent the blood inside the inguinal artery from being ejected from the puncture part of the inguinal artery to the outside of the human body, and to promote the healing of the puncture part of the inguinal artery.

[0003] When actually performing compression operation on the puncture part of the inguinal artery, whether manual compression operation or instrument compression operation is adopted, a long compression time is required; one patent document in the prior art, entitled "Hemostatic Fixing Device for Inguinal Blood Vessel Incision", application number 202021547092.2, proposes to use a sandbag to compress the local hemostasis for 6-8 hours.

[0004] Under the condition of a long compression operation time, if the medical staff chooses the manual compression method, it is easy to cause fatigue of the medical staff; therefore, the compression method using medical instruments (such as the aforementioned prior art) is considered to be a better choice.

[0005] Whether it is a manual compression method or a medical instrument compression method, in clinical practice, the complication of pseudoaneurysm may occur; pseudoaneurysm refers to a hematoma formed by blood flowing out of the tear or break in the artery and being wrapped by the tissue adjacent to the artery; one of the reasons for the complication of pseudoaneurysm is that the position of the puncture part of the inguinal artery is not the same as the position of the puncture wound on the surface of the patient; therefore, when actually choosing manual compression or medical instrument compression, it is easy for the position of the patient's surface to be compressed to be not the position of the puncture part of the inguinal artery.

[0006] Since the puncture part of the inguinal artery is located inside the patient's body, without the assistance of an ultrasonic detector, the medical staff can only determine the position of the puncture part of the inguinal artery actually projected to the surface of the patient according to experience, which causes deviation between the position of the puncture part of the inguinal artery and the position actually compressed by the patient;

[0007] In the case of having an ultrasonic detector, the medical staff can observe the position of the puncture part of the inguinal artery from the ultrasonic image, and determine the position of the puncture part of the inguinal artery projected to the body surface of the patient according to the current position of the ultrasonic probe on the body surface of the patient. However, before the compression operation is performed, the ultrasonic probe must be away from the body surface of the patient. Then, the finger of the medical staff or the medical device for compression needs to contact the 'position where the ultrasonic probe is originally located on the body surface of the patient'. Since there is no reference, this operation will cause the position of the puncture part of the inguinal artery to deviate from the actual position of the patient being compressed.

[0008] Therefore, how to reduce or avoid the deviation of the position of the puncture part of the inguinal artery from the actual position of the patient being compressed becomes a technical problem to be solved. SUMMARY

[0009] To solve the technical problem of how to reduce or avoid the deviation of the position of the puncture part of the inguinal artery from the actual position of the patient being compressed in the prior art, the present application provides a positioning device, a blood vessel compressor and a blood vessel compression system.

[0010] To achieve the above-mentioned object, the technical scheme adopted by the present application is as follows:

[0011] According to one aspect of the present application, a positioning device is provided, comprising a bottom positioning plate and at least one movable positioning plate;

[0012] The movable positioning plate is arranged on the bottom positioning plate through a rotating shaft, wherein the movable positioning plate and the bottom positioning plate are arranged face to face;

[0013] The bottom positioning plate is provided with a bottom positioning groove for positioning the blood vessel compressor, and the bottom positioning groove and the edge of the bottom positioning plate form a first gap, and the opening width of the first gap matches the width of the blood vessel compressor;

[0014] The movable positioning plate is provided with a movable positioning groove for positioning the ultrasonic probe, and the movable positioning groove and the edge of the movable positioning plate form a second gap, and the opening width of the second gap matches the minimum width of the ultrasonic probe;

[0015] Along the axial direction of the rotating shaft, the bottom positioning groove and the movable positioning groove can be adjusted to be communicated or not communicated, wherein the opening width of the first gap is greater than the opening width of the second gap.

[0016] Further, the number of the movable positioning plates is one, and the movable positioning plate is provided with one movable positioning groove, wherein the movable positioning groove is used for accommodating the ultrasonic probe with a circular end face;

[0017] Alternatively, the number of the movable positioning plates is one, and the movable positioning plate is provided with one movable positioning groove, wherein the movable positioning groove is used for accommodating an ultrasonic probe with a rectangular end face;

[0018] Alternatively, the number of the movable positioning plates is two, wherein the first movable positioning plate is provided with a first movable positioning groove used for accommodating an ultrasonic probe with a circular end face, and the second movable positioning plate is provided with a second movable positioning groove used for accommodating an ultrasonic probe with a rectangular end face;

[0019] Alternatively, the number of the movable positioning plates is one, and the movable positioning plate is provided with two movable positioning grooves, wherein the first movable positioning groove is used for accommodating an ultrasonic probe with a circular end face, and the second movable positioning groove is used for accommodating an ultrasonic probe with a rectangular end face.

[0020] Further, the movable positioning plate comprises a first plate-shaped part and a second plate-shaped part;

[0021] The first plate-shaped part is arranged on the bottom positioning plate through the rotating shaft, and the second plate-shaped part forms a sliding pair with the first plate-shaped part, wherein a locking mechanism is arranged between the first plate-shaped part and the second plate-shaped part;

[0022] The movable positioning groove is arranged on the second plate-shaped part;

[0023] The bottom positioning plate is provided with an indicating scale line, wherein an extension line of the indicating scale line intersects with the center of the blood vessel compressor when the blood vessel compressor is clamped into the bottom positioning groove;

[0024] The second plate-shaped part is provided with an indicating groove, and the indicating groove penetrates through the second plate-shaped part along a direction perpendicular to the plate face of the second plate-shaped part, wherein an extension line of the indicating groove intersects with the end face center of the ultrasonic probe when the ultrasonic probe is clamped into the movable positioning groove;

[0025] The indicating scale line and the indicating groove can be adjusted to be coincident.

[0026] According to an aspect of the present application, a blood vessel compressor is provided, comprising a binding mechanism, a pressurizing mechanism and a compression part;

[0027] The pressurizing mechanism and the compression part are fixedly or detachably connected, and the binding mechanism is used for fixing the pressurizing mechanism and the compression part on a human body;

[0028] The compression component is used to contact the human body, wherein the compression component can be clamped into the bottom layer positioning slot as described above.

[0029] Further, the pressure increasing mechanism comprises a first sleeve, a second sleeve, a third sleeve, a threaded rod and a knob;

[0030] The second sleeve is limited between the first sleeve and the third sleeve;

[0031] The first sleeve is configured to be inserted into the second sleeve, the first sleeve and the second sleeve are configured as a first sliding pair, and the sliding direction of the first sliding pair is parallel to the axial direction of the threaded rod;

[0032] The second sleeve is configured to be inserted into the third sleeve, the second sleeve and the third sleeve are configured as a second sliding pair, and the sliding direction of the second sliding pair is parallel to the axial direction of the threaded rod;

[0033] The first sleeve is provided with a first force receiving plate, and the first force receiving plate is arranged at the end of the first sleeve, wherein a threaded hole is arranged on the first force receiving plate, and the threaded rod is threadedly connected with the threaded hole;

[0034] The second sleeve is provided with a second force receiving plate, and the second force receiving plate is located inside the second sleeve, and the second force receiving plate is used to receive the force applied by the threaded rod to the second sleeve;

[0035] The third sleeve is provided with a third force receiving plate, and the third force receiving plate is located inside or at the end of the third sleeve, and the third force receiving plate is used to receive the force applied by the second sleeve to the third sleeve;

[0036] The knob is arranged on the end of the threaded rod located outside the first sleeve.

[0037] Further, a first positioning pin and a first locking nut are further included;

[0038] The first sleeve is provided with a first sliding groove, the second sleeve is provided with a first positioning hole and a first threaded hole, the first positioning hole is located between the first sliding groove and the first threaded hole, the first positioning hole is communicated with the first sliding groove and the first threaded hole respectively, one end of the first positioning pin is arranged in the first sliding groove, the other end of the first positioning pin is arranged in the first positioning hole, and the first locking nut is threadedly connected with the first threaded hole;

[0039] A second positioning pin and a second locking nut are further included;

[0040] The second sleeve is provided with a second sliding slot, the third sleeve is provided with a second positioning hole and a second threaded hole, the second positioning hole is located between the second sliding slot and the second threaded hole, the second positioning hole is communicated with the second sliding slot and the second threaded hole respectively, one end of the second positioning pin is arranged in the second sliding slot, the other end of the second positioning line is arranged in the second positioning hole, and the second locking nut is threadedly connected with the second threaded hole.

[0041] Further, the compression component is a non-inflatable air bag or a rubber block;

[0042] The compression component is located outside the third sleeve, and the center line of the compression component coincides with the center line of the threaded rod, wherein the compression component is arranged on the third sleeve by an adhesive, or the compression component is arranged on the third sleeve by a hook and loop fastener.

[0043] Further, an inflatable air bag and a film pressure sensor are arranged between the second sleeve and the third sleeve;

[0044] The film pressure sensor is located between the inflatable air bag and the third sleeve, the inflatable air bag is located between the film pressure sensor and the second sleeve, and the inflatable air bag is used to apply an acting force to the second force receiving plate and the third force receiving plate;

[0045] The inflation pipe of the inflatable air bag extends from the inside of the third sleeve to the outside of the third sleeve, wherein the third sleeve is provided with a first through hole, and the inflation pipe penetrates the first through hole;

[0046] The lead wire of the film pressure sensor extends from the inside of the third sleeve to the outside of the third sleeve, wherein the third sleeve is provided with a second through hole, and the lead wire penetrates the second through hole;

[0047] The second sleeve is provided with a plurality of positioning blocks;

[0048] Any one of the positioning blocks is arranged at the axial end of the second sleeve respectively, any one of the positioning blocks is limited between the second sleeve and the third sleeve respectively, and any one of the positioning blocks can contact the third sleeve respectively;

[0049] A gap is formed between two adjacent positioning blocks, and the gap is used to be penetrated by the inflation pipe or the lead wire.

[0050] Further, a thrust ball bearing and a push block are arranged in the second sleeve;

[0051] The thrust ball bearing is disposed between the second force plate and the push block, and the threaded rod is configured to contact the push block.

[0052] According to one aspect of the present invention, a vascular compression system is provided, comprising a vascular compressor as described above;

[0053] It also includes a controller, an air pump, a three-way connector, a check valve, and a solenoid valve;

[0054] The controller is electrically connected to the air pump, the solenoid valve, and the thin-film pressure sensor of the vascular compressor, respectively.

[0055] The air pump's outlet is connected to the first port of the three-way connector via an outlet pipe, wherein the one-way valve is located between the first port and the outlet.

[0056] The solenoid valve is installed on the second port of the three-way connector;

[0057] The third port of the three-way connector is connected to the catheter of the inflatable balloon of the vascular compressor. Further,

[0058] The above technical solution has the following advantages or beneficial effects:

[0059] The positioning device provided by this invention allows medical personnel to obtain the location of the puncture site of the inguinal artery using an ultrasound detector. The device then engages with the ultrasound probe located on the patient's body surface via the first notch of the bottom positioning groove and the second notch of the movable positioning groove. This establishes the positioning device's position relative to the patient's body surface or the puncture site of the inguinal artery. By fixing the bottom positioning plate relative to the patient's body surface and separating the movable positioning plate from the bottom positioning plate, a vascular compressor or hemostatic fixation device can be inserted into the bottom positioning groove. This achieves the positioning of the vascular compressor or hemostatic fixation device relative to the patient's body surface or the puncture site of the inguinal artery, thus solving the technical problem in the prior art of reducing or avoiding deviations between the location of the puncture site of the inguinal artery and the actual location of compression on the patient. Attached Figure Description

[0060] Figure 1 This is a schematic diagram of the positioning device provided in Embodiment 1 of the present invention;

[0061] Figure 2 This is a schematic diagram of the positioning device provided in Embodiment 1 of the present invention;

[0062] Figure 3 This is a cross-sectional view of the positioning device provided in Embodiment 1 of the present invention;

[0063] Figure 4A structural schematic view of a blood vessel compressor provided for Embodiment 2 of the present application;

[0064] Figure 5 A structural schematic view of a blood vessel compressor provided for Embodiment 2 of the present application;

[0065] Figure 6 A structural schematic view of a blood vessel compressor provided for Embodiment 2 of the present application;

[0066] Figure 7 A sectional view of a blood vessel compressor provided for Embodiment 2 of the present application;

[0067] Figure 8 A structural schematic view of a blood vessel compressor provided for Embodiment 2 of the present application;

[0068] Figure 9 A structural schematic view of a first sleeve provided for Embodiment 2 of the present application;

[0069] Figure 10 A structural schematic view of a second sleeve provided for Embodiment 2 of the present application;

[0070] Figure 11 A partial enlarged view of a second sleeve provided for Embodiment 2 of the present application;

[0071] Figure 12 A sectional view of a third sleeve provided for Embodiment 2 of the present application;

[0072] Figure 13 A sectional view of a third sleeve provided for Embodiment 2 of the present application;

[0073] Figure 14 A sectional view of a blood vessel compressor provided for Embodiment 2 of the present application. DETAILED DESCRIPTION

[0074] Embodiment 1:

[0075] In the present embodiment, a positioning device is provided to solve the technical problem of how to reduce or avoid the deviation between the puncture position of the inguinal artery and the actual compression position of the patient in the prior art.

[0076] Referring to Figures 1 to 3 , the positioning device in the present embodiment comprises a bottom positioning plate 001 and at least one movable positioning plate 002;

[0077] The movable positioning plate 002 is arranged on the bottom positioning plate 001 through a rotating shaft 000, wherein the movable positioning plate 002 and the bottom positioning plate 001 are arranged in a face-to-face manner;

[0078] The bottom positioning plate 001 is provided with a bottom positioning slot 003 for positioning the blood vessel compressor, and the bottom positioning slot 003 and the edge of the bottom positioning plate 001 form a first gap 004, and the opening width of the first gap 004 matches the width of the blood vessel compressor;

[0079] The movable positioning plate 002 is provided with a movable positioning slot 005 for positioning the ultrasonic probe, and the movable positioning slot 005 and the edge of the movable positioning plate 002 form a second gap 006, and the opening width of the second gap 006 matches the minimum width of the ultrasonic probe;

[0080] Along the axial direction of the rotation axis 000, the bottom positioning slot 003 and the movable positioning slot 005 can be adjusted to be communicated or not communicated, and the opening width of the first gap 004 is greater than the opening width of the second gap 006.

[0081] The positioning device in the embodiment is preferably used in cooperation with the blood vessel compressor in Embodiment 2, and in addition, can be used in cooperation with a part of the prior art blood vessel compressor or hemostatic fixation device, as long as the structure for contacting the patient in the prior art blood vessel compressor or hemostatic fixation device can be clamped into the first gap 004.

[0082] Before actually using the positioning device in the embodiment, the positions of the bottom positioning plate 001 and the movable positioning plate 002 need to be aligned; specifically, referring to Figures 1 to 3 , the movable positioning plate 002 is rotated, so that the profile of the movable positioning slot 005 on the movable positioning plate 002 and the profile of the bottom positioning slot 003 on the bottom positioning plate 001 are in an overlapping state along the axial direction of the rotation axis 000, at this time, the opening direction of the first gap 004 of the bottom positioning plate 001 and the opening direction of the second gap 006 of the movable positioning plate 002 are in the same direction, thereby completing the alignment of the positions of the bottom positioning plate 001 and the movable positioning plate 002.

[0083] After the positions of the bottom positioning plate 001 and the movable positioning plate 002 are aligned, the medical staff needs to determine the position of the inguinal artery puncture part in the patient's body projected to the patient's body surface through the ultrasonic probe of the ultrasonic detector; in the case of determining the above-mentioned position, the medical staff keeps the ultrasonic probe perpendicular to the patient's body surface and keeps it stationary; then, the positioning device of the present embodiment is clamped on the ultrasonic probe; specifically, the first notch 004 and the second notch 006 face the ultrasonic probe at the same time, and the positioning device of the present embodiment is driven to move towards the ultrasonic probe, so that the first notch 004 and the second notch 006 are gradually clamped on the ultrasonic probe at the same time and in the same direction; in other words, under the condition that the ultrasonic probe is kept stationary relative to the patient's body surface, the ultrasonic probe is gradually contained in the bottom positioning groove 003 and the movable positioning groove 005.

[0084] After the ultrasonic probe is contained in the first notch 004 and the second notch 006, the positioning device of the present embodiment forms a positioning state relative to the patient's body surface, and the positioning device of the present embodiment forms a positioning state relative to the puncture part of the patient's inguinal artery; more specifically, the current bottom positioning plate 001 and the movable positioning plate 002 form a positioning state relative to the patient's body surface or the puncture part of the inguinal artery, respectively;

[0085] After the positioning device of the present embodiment forms a positioning state relative to the patient's body surface or the puncture part of the inguinal artery, the medical staff keeps the position of the positioning device of the present embodiment relative to the patient's body surface stationary, and then the medical staff removes the ultrasonic probe from the patient's body surface, wherein the ultrasonic probe can be moved along the direction of the bottom positioning groove 003 to the movable positioning groove 005, or it can be moved along the opening direction of the first notch 004 or the opening direction of the second notch 006.

[0086] After the ultrasonic probe is removed from the patient's body surface, the medical staff keeps the bottom positioning plate 001 stationary relative to the patient's body surface, while the medical staff drives the movable positioning plate 002 to move relative to the bottom positioning plate 001, so that the movable positioning plate 002 is in a mutually separated state with the bottom positioning plate 001; in other words, after the movable positioning plate and the bottom positioning plate 001 are in a mutually separated state, the shielding phenomenon of the bottom positioning groove 003 by the movable positioning plate 002 disappears;

[0087] After the movable positioning plate 002 is separated from the bottom positioning plate 001, the blood vessel compressor or the hemostatic device is inserted into the positioning device of the present embodiment. Specifically, the blood vessel compressor or the hemostatic device can be inserted into the bottom positioning slot 003 of the bottom positioning plate 001 along a direction perpendicular to the surface of the patient's body, or the blood vessel compressor or the hemostatic device can be inserted into the bottom positioning slot 003 of the bottom positioning plate 001 along a direction opposite to the opening direction of the first gap 004.

[0088] After the blood vessel compressor or the hemostatic device is inserted into the bottom positioning slot 003, the blood vessel compressor or the hemostatic device is positioned relative to the surface of the patient's body or the puncture part of the groin artery. Then, the medical staff removes the positioning device of the present embodiment from the surface of the patient's body. Specifically, the medical staff drives the positioning device of the present embodiment away from the blood vessel compressor or the hemostatic device which is currently stationary along a direction opposite to the opening direction of the first gap 004.

[0089] It should be understood that in the foregoing, the positioning device of the present embodiment is stationary relative to the surface of the patient's body, which can limit the movement of the bottom positioning plate 001 and the movable positioning plate 002 relative to the surface of the patient's body by manual operation of the medical staff, or the bottom positioning plate 001 and the movable positioning plate 002 can be temporarily fixed to the surface of the patient's body by medical tape.

[0090] It should be understood that in the foregoing, the blood vessel compressor or the hemostatic device can need to be fixed to the patient's body first, and then the positioning device of the present embodiment is removed from the surface of the patient's body. In the foregoing, the bottom positioning plate 001 can be fixed to the surface of the patient's body by medical tape first, then the blood vessel compressor or the movable positioning plate 002 is fixed to the surface of the patient's body and inserted into the bottom positioning slot 003 of the bottom positioning plate 001, and finally the medical tape and the positioning device of the present embodiment are separated from the surface of the patient's body.

[0091] It should be understood that the opening width of the first gap 004 matches the width of the blood vessel compressor, the opening width of the second gap 006 matches the minimum width of the ultrasonic probe, and the opening width of the first gap 004 is greater than the opening width of the second gap 006, which is to match the size of the current ultrasonic probe and the blood vessel compressor or the hemostatic device.

[0092] Specifically, the cross-sectional shape of the ultrasonic probe can be circular or rectangular, so the opening width of the second notch 006 should be matched with the diameter of the circular cross-section of the ultrasonic probe, or the opening width of the second notch 006 should be matched with the width of the rectangular cross-section of the ultrasonic probe; more specifically, when the ultrasonic probe is clamped into the second notch 006 and the ultrasonic probe is completely located in the movable positioning groove 005, the ultrasonic probe should form a clearance fit with the movable positioning groove 005.

[0093] Specifically, the cross-sectional shape of the structure for contacting the body surface of the patient of the vascular compressor or hemostatic fixation device can be circular (see the vascular compressor in Embodiment 2 described later), so the opening width of the first notch 004 should be matched with the diameter of the circular cross-section of the structure for contacting the body surface of the patient of the vascular compressor or hemostatic fixation device; more specifically, when the structure for contacting the body surface of the patient of the vascular compressor or hemostatic fixation device is clamped into the first notch 004 and is completely located in the bottom positioning groove 003, the structure for contacting the body surface of the patient of the vascular compressor or hemostatic fixation device should form a clearance fit with the bottom positioning groove 003.

[0094] Specifically, assuming that the opening width of the second notch 006 is greater than the opening width of the first notch 004, which means that the minimum width of the ultrasonic probe is greater than the diameter of the structure for contacting the body surface of the patient of the vascular compressor or hemostatic fixation device, in this case, the ultrasonic probe cannot be clamped into the first notch 004 and the second notch 006; therefore, only by selecting the opening width of the first notch 004 to be greater than the opening width of the second notch 006, and correspondingly, selecting the diameter of the structure for contacting the body surface of the patient of the vascular compressor or hemostatic fixation device to be greater than the minimum width of the ultrasonic probe, the ultrasonic probe can be clamped into the first notch 004 and the second notch 006, respectively.

[0095] The positioning device provided in the embodiment is used after the medical staff obtains the position of the puncture part of the inguinal artery by using the ultrasonic detector, and the first notch 004 of the bottom positioning groove 003 and the second notch 006 of the movable positioning groove 005 are clamped together to the ultrasonic probe located on the body surface of the patient, forming the positioning of the positioning device relative to the body surface of the patient or the puncture part of the inguinal artery, by fixing the bottom positioning plate 001 relative to the body surface of the patient and separating the movable positioning plate 002 relative to the bottom positioning plate 001, the vascular compressor or hemostatic fixation device can be clamped into the bottom positioning groove 003, realizing the positioning of the vascular compressor or hemostatic fixation device relative to the body surface of the patient or the puncture part of the inguinal artery, thereby solving the technical problem of how to reduce or avoid the deviation between the position of the puncture part of the inguinal artery and the actual position of the patient to be compressed in the prior art.

[0096] Further, the positioning device in the embodiment can have one movable positioning plate 002 (see Figures 1 to 3 The movable positioning plate 002 is provided with one movable positioning groove 005, and the movable positioning groove 005 is used for accommodating the ultrasonic probe with a circular end face.

[0097] Alternatively, the movable positioning plate 002 can have one movable positioning groove 005, and the movable positioning groove 005 is used for accommodating the ultrasonic probe with a rectangular end face.

[0098] Alternatively, the movable positioning plate 002 can have two movable positioning grooves 005, and the first movable positioning groove 005 is used for accommodating the ultrasonic probe with a circular end face, and the second movable positioning groove 005 is used for accommodating the ultrasonic probe with a rectangular end face.

[0099] Alternatively, the movable positioning plate 002 can have one movable positioning groove 005, and the movable positioning groove 005 is used for accommodating the ultrasonic probe with a circular end face.

[0100] It should be understood that the specific number of movable positioning plates 002 should match the number of movable positioning grooves 005 actually provided. In addition to the above-mentioned technical solutions of the movable positioning plate 002 and the movable positioning groove 005, three or four or more movable positioning grooves 005 with different shapes can be provided on one movable positioning plate 002. In the specific solution in which one movable positioning plate 002 is provided with a plurality of movable positioning grooves 005, it is necessary to consider that the movable positioning plate 002 cannot block the bottom positioning groove 003 after the movable positioning groove 005 is separated from the bottom positioning groove 003.

[0101] It should be understood that the ultrasonic probe of the common ultrasonic detector is circular or rectangular in shape. However, it is not excluded that the ultrasonic probe has other shapes in addition to the circular or rectangular shape. The shape of the movable positioning groove 005 can be determined according to the shape of the specific ultrasonic probe, as long as the ultrasonic probe with other shapes can be clamped into the movable positioning groove 005.

[0102] Further, referring to Figures 1 to 3 The positioning device provided by the embodiment includes a first plate-shaped part 007 and a second plate-shaped part 008.

[0103] The first plate-shaped part 007 is arranged on the bottom layer positioning plate 001 through the rotating shaft 000, and the second plate-shaped part 008 and the first plate-shaped part 007 form a sliding pair, wherein the locking mechanism is arranged between the first plate-shaped part 007 and the second plate-shaped part 008;

[0104] The movable positioning groove 005 is arranged on the second plate-shaped part 008;

[0105] The bottom layer positioning plate 001 is provided with the indicating line 009, wherein when the blood vessel compressor is clamped into the bottom layer positioning groove 003, the extension line of the indicating line 009 intersects with the center of the blood vessel compressor;

[0106] The second plate-shaped part 008 is provided with the indicating groove 010, and the indicating groove 010 penetrates the second plate-shaped part 008 along the direction perpendicular to the plate surface of the second plate-shaped part 008, wherein when the ultrasonic probe is clamped into the movable positioning groove 005, the extension line of the indicating groove 010 intersects with the end surface center of the ultrasonic probe;

[0107] The indicating line 009 and the indicating groove 010 can be adjusted to be coincident.

[0108] As mentioned in the foregoing, the movable positioning plate 002 and the bottom layer positioning plate 001 can be separated from each other, so that in the process of actually aligning the movable positioning plate 002 and the bottom layer positioning plate 001, the reference object is needed to prompt the medical staff whether the two are aligned; in the above scheme, the scheme of the indicating groove 010 and the indicating line 009 can be directly observed by the naked eye of the medical staff whether the movable positioning plate 002 and the bottom layer positioning plate 001 are aligned; the medical staff observes the indicating groove 010 along the direction from the movable positioning plate 002 to the bottom layer positioning plate 001, if the indicating line 009 in the indicating groove 010 obviously intersects with the profile of the indicating groove 010, it indicates that the movable positioning plate 002 and the bottom layer positioning plate 001 are not aligned; on the contrary, if the indicating line 009 in the indicating groove 010 and the profile of the indicating groove 010 are parallel to each other, it indicates that the movable positioning plate 002 and the bottom layer positioning plate 001 are aligned.

[0109] In actual manufacture of the positioning device of the embodiment, the movable positioning plate 002 and the bottom positioning plate 001 may have a relatively large deviation after assembly due to the influence of manufacturing process and assembly process, which is reflected in that the person's line of sight cannot observe the indicating scale line 009 through the indicating slot 010; therefore, by specifically designing the movable positioning plate 002 as the first plate-shaped part 007 and the second plate-shaped part 008 and forming a sliding pair structure between the first plate-shaped part 007 and the second plate-shaped part 008, the above-mentioned 'the movable positioning plate 002 and the bottom positioning plate 001 may have a relatively large deviation after assembly' can be eliminated; specifically, if it is confirmed that the distance from the indicating slot 010 to the rotating shaft is greater than the distance from the indicating scale line 009 to the rotating shaft, the overall length of the first plate-shaped part 007 to the second plate-shaped part 008 can be reduced, and vice versa, if it is confirmed that the distance from the indicating slot 010 to the rotating shaft is less than the distance from the indicating scale line 009 to the rotating shaft, the overall length of the first plate-shaped part 007 to the second plate-shaped part 008 can be increased;

[0110] The sliding pair structure formed between the first plate-shaped part 007 and the second plate-shaped part 008 can specifically adopt a slide rod and a sliding cavity structure; in the embodiment, referring to Figures 1 to 3 , preferably, two slide rods 011 are arranged on the first plate-shaped part 007, and correspondingly, two sliding cavities 012 are arranged on the second plate-shaped part 008, and the two slide rods 011 are respectively inserted into one of the sliding cavities 012 to form a sliding pair structure;

[0111] In order to form a fixed state after adjustment of the first plate-shaped part 007 and the second plate-shaped part 008, a locking mechanism is arranged to lock the first plate-shaped part 007 and the second plate-shaped part 008 after adjustment; specifically, in the embodiment, referring to Figures 1 to 3 , preferably, a locking screw 013 is arranged to form the locking mechanism, and the threaded hole of the second plate-shaped part 008 is communicated with the inner cavity of the sliding cavity 012, so that the locking screw 013 can be inserted into the inner cavity of one of the sliding cavities 012 through the threaded hole of the second plate-shaped part 008; before the locking screw 013 locks the first plate-shaped part 007 and the second plate-shaped part 008, a gap is formed between the locking screw 013 and the slide rod 011 in the inner cavity of the sliding cavity 012, so that the slide rod 011 can move relative to the sliding cavity 012; after the locking screw 013 contacts the slide rod 011, the friction between the slide rod 011 and the locking screw 013 prevents the movement of the slide rod 011 relative to the sliding cavity 012, thereby forming a locked state.

[0112] Embodiment 2:

[0113] In the present embodiment, a blood vessel compressor is provided for cooperating with the positioning device in the aforementioned embodiment 1 to form the positioning of the blood vessel compressor of the present embodiment relative to the puncture part of the inguinal artery of the patient's body surface.

[0114] Specifically, referring to Figure 1 In the present embodiment, the blood vessel compressor comprises a bandage mechanism 1, a pressure boosting mechanism 2 and a compression component 3.

[0115] The pressure boosting mechanism 2 and the compression component 3 are fixedly or detachably connected, and the bandage mechanism 1 is used to fix the pressure boosting mechanism 2 and the compression component 3 on the human body.

[0116] The compression component 3 is used to contact the human body, wherein the compression component 3 can be clamped into the bottom positioning groove 003 of the positioning device in the aforementioned embodiment 1.

[0117] In actual use of the blood vessel compressor of the present embodiment, after the positioning device in the aforementioned embodiment 1 has been positioned to the body surface of the patient, the movable positioning plate 002 of the positioning device is removed relative to the bottom positioning plate 001; at this time, the blood vessel compression device of the present embodiment can be clamped into the bottom positioning groove 003 of the bottom positioning plate 001; specifically, in the present embodiment, the compression component 3 used to contact the body surface of the human body can be clamped into the bottom positioning groove 003 in the aforementioned embodiment 1.

[0118] The medical staff can pre-set the bandage mechanism 1 on the human body in a loose state, and then position the compression component 3 to the body surface of the patient through the positioning device of the aforementioned embodiment 1.

[0119] The specific structure of the bandage mechanism 1 can adopt the bandage structure in the prior art; in the present embodiment, referring to Figure 8 Preferably, the bandage mechanism 1 comprises a first compression band 101, a second compression band 102 and a third compression band 103 connected to the pressure boosting mechanism 2, a waist band (not shown in the figure) for being tied around the waist of the patient, and a leg band (not shown in the figure) for being tied around the leg of the patient, the first compression band 101 and the second compression band 102 are respectively connected with the waist band and the pressure boosting mechanism 2, and the third compression band 103 is respectively connected with the leg band and the pressure boosting mechanism 2.

[0120] In order to facilitate the transition of the bandage mechanism 1 from the loose state to the tight state after the blood vessel compressor is positioned to the body surface of the patient, preferably, a buckle (not shown in the figure) is arranged between at least one of the first compression band 101, the second compression band 102 and the third compression band 103 and the leg band or the bandage, for example, the buckle on the safety belt of a vehicle.

[0121] After the compression component 3 is positioned to the body surface of the patient by the positioning device of the foregoing embodiment 1, the bandage mechanism 1 is tightened, at this time, the first compression band 101, the second compression band 102 and the third compression band 103 form the positioning of the compression mechanism 2 and the compression component 3 relative to the patient from three directions respectively.

[0122] The compression mechanism 2 is used to apply the mutual separation force to the bandage mechanism 1 and the compression component 3; in the embodiment, the compression mechanism 2 at least has a mechanical compression structure which is described in the following content, which is not mentioned here; under the condition that the compression mechanism 2 applies the force, the compression mechanism 2 receives the reaction force from the bandage mechanism 1 and the reaction force from the body surface of the patient respectively; in another aspect, since the compression mechanism 2 is limited between the bandage mechanism 1 and the body surface of the patient, the reaction force of the bandage mechanism 1 causes the compression mechanism 2 and the compression component 3 to form the compression force to the body surface of the patient, which is actually used to compress the puncture part of the inguinal artery, thereby preventing the blood inside the inguinal artery from being ejected to the outside of the human body from the puncture part of the inguinal artery, and promoting the healing of the puncture part of the inguinal artery.

[0123] It should be noted that in some scenarios of minimally invasive surgery of the inguinal artery, the patient undergoes minimally invasive surgery in the operating room, and immediately after the minimally invasive surgery, the puncture part of the inguinal artery needs to be compressed, and at the same time, the patient needs to be transferred from the operating room to the ward after the surgery; if the medical staff uses the blood vessel compressor or the hemostatic fixation device in the prior art to stop bleeding, since the blood vessel compressor or the hemostatic fixation device in the prior art does not have an adjusting mechanism, in the case of a relatively long pressing time and a relatively large pressure, the lower limbs (specifically the feet) of the patient may not have blood flow.

[0124] In the embodiment, preferably, the compression mechanism 2 has a mechanical compression mechanism, which is used to compress the puncture part of the inguinal artery after the minimally invasive surgery of the patient is completed and before the patient is transferred to the ward; the purpose is to realize the adjustable pressure and the stability of the pressure after the pressure is adjusted.

[0125] Specifically, referring to Figures 5 to 7 , the blood vessel compressor of the embodiment, the compression mechanism 2 includes a first sleeve 201, a second sleeve 202, a third sleeve 203, a threaded rod 204 and a knob 205;

[0126] The second sleeve 202 is limited between the first sleeve 201 and the third sleeve 203;

[0127] The first sleeve 201 is configured to be inserted into the second sleeve 202, and the first sleeve 201 and the second sleeve 202 are configured as a first sliding pair, and the sliding direction of the first sliding pair is parallel to the axial direction of the threaded rod 204.

[0128] The second sleeve 202 is configured to be inserted into the third sleeve 203, and the second sleeve 202 and the third sleeve 203 are configured as a second sliding pair, the sliding direction of the second sliding pair is parallel to the axial direction of the threaded rod 204;

[0129] The first sleeve 201 is provided with a first force receiving plate 206, which is arranged at the end of the first sleeve 201, wherein a threaded hole is arranged on the first force receiving plate 206, and the threaded rod 204 is threadedly connected with the threaded hole;

[0130] The second sleeve 202 is provided with a second force receiving plate 207, which is arranged inside the second sleeve 202, and the second force receiving plate 207 is used to receive the force applied by the threaded rod 204 to the second sleeve 202;

[0131] The third sleeve 203 is provided with a third force receiving plate 208, which is arranged inside or at the end of the third sleeve 203, and the third force receiving plate 208 is used to receive the force applied by the second sleeve 202 to the third sleeve 203;

[0132] The knob 205 is arranged on the end of the threaded rod 204 located outside the first sleeve 201.

[0133] In actual use, the medical staff first fix the blood vessel compressor of the embodiment to the body of the patient, and accurately position the compression member 3 at the puncture part of the body surface or the groin artery of the patient through the positioning device of the foregoing embodiment 1, and then the medical staff rotates the knob 205 in the clockwise direction, so that the knob 205 drives the threaded rod 204 to rotate;

[0134] During the rotation of the threaded rod 204 in the clockwise direction, the end of the threaded rod 204 located inside the first sleeve 201 applies a force to the second sleeve 202, the second sleeve 202 applies a force to the third sleeve 203 after receiving the force applied by the first sleeve 201, the third sleeve 203 applies a force to the compression member 3 after receiving the force applied by the second sleeve 202, and the compression member 3 applies a compression force to the puncture part of the body surface or the groin artery of the patient after receiving the force applied by the third sleeve 203; at the same time, the reaction force of the second sleeve 202 is applied to the threaded rod 204, and then the threaded rod 204 applies the reaction force to the first sleeve 201; the first sleeve 201 applies the reaction force from the threaded rod 204 to the bandage mechanism 1, from this point of view, the force applied by the threaded rod 204 to the second sleeve 202 is limited between the bandage mechanism 1 and the body surface of the patient, so that the force applied by the threaded rod 204 to the second sleeve 202 can be used as the compression force applied to the puncture part of the body surface or the groin artery of the patient.

[0135] With the continuous rotation of the threaded rod 204 in the clockwise direction, the distance between the first sleeve 201 and the second sleeve 202 increases, so that the force exerted by the threaded rod 204 on the second sleeve 202 increases, and then the force exerted by the binding mechanism 1 on the pressurizing mechanism 2 and the compression component 3 increases, and finally the compression force exerted by the compression component 3 on the body surface of the patient increases.

[0136] Through the vascular compressor of the present embodiment, the medical staff first uses a relatively large compression force to compress the body surface of the patient or the puncture part of the groin artery, and when the first time is met, for example, 5 minutes, the medical staff should rotate the knob 205 in the counterclockwise direction, so that the threaded rod 204 rotates in the counterclockwise direction, thereby reducing the compression force exerted on the body surface of the patient or the puncture part of the groin artery, and finally avoiding the occurrence of no blood flow in the lower limbs (specifically the feet) of the patient.

[0137] It should be understood that when the medical staff applies a compression force to the body surface of the patient or the puncture part of the groin artery, the medical staff can feel the blood vessels of the patient's feet with their hands, and if the pulsation of the blood vessels can be felt, it means that the patient's feet have blood flow, and if the pulsation of the blood vessels cannot be felt, it means that the patient's feet have no blood flow.

[0138] Since the threaded rod 204 exerts a force on the second sleeve 202, the first sleeve 201 and the second sleeve 202 are in a mutually separated state when the first sleeve 201 receives a reaction force, so that the distance between the first sleeve 201 and the second sleeve 202 increases; the first sleeve 201 and the second sleeve 202 are configured as a first sliding pair, specifically, the first sleeve 201 is inserted into the second sleeve 202, and a gap fit is formed between the first sleeve 201 and the second sleeve 202, thereby forming the first sliding pair.

[0139] The first force receiving plate 206 on the first sleeve 201 is provided with a threaded hole on one hand, so that the threaded rod 204 and the threaded hole form a threaded connection, and on the other hand, the first force receiving plate 206 is connected with the first compression band 101, the second compression band 102 and the third compression band 103 of the aforementioned binding mechanism 1, respectively.

[0140] The second force receiving plate 207 in the second sleeve 202 is used to receive the force from the threaded rod 204; the threaded rod 204 can directly contact the second force receiving plate 207, or a thrust ball bearing is arranged between the threaded rod 204 and the second force receiving plate 207.

[0141] The third force receiving plate 208 in the third sleeve 203 is used to receive the force from the second sleeve 202, and the third force receiving plate 208 receiving the force from the second sleeve 202 applies force to the compression component 3.

[0142] Further, in order to avoid the first sleeve 201 and the second sleeve 202 from separating from each other during use, and in order to avoid the first sleeve 201 and the second sleeve 202 from rotating relative to each other during use, preferably, a sliding limiting structure is arranged between the first sleeve 201 and the second sleeve 202.

[0143] Specifically, referring to Figure 9 , Figure 10 , Figure 11 or Figure 14 , the blood vessel compressor further comprises a first positioning pin 4 and a first locking nut 5.

[0144] The first sleeve 201 is provided with a first sliding groove 209, the second sleeve 202 is provided with a first positioning hole 210 and a first threaded hole 211, the first positioning hole 210 is located between the first sliding groove 209 and the first threaded hole 211, the first positioning hole 210 is in communication with the first sliding groove 209 and the first threaded hole 211 respectively, one end of the first positioning pin 4 is arranged in the first sliding groove 209, the other end of the first positioning pin 4 is arranged in the first positioning hole 210, and the first locking nut 5 is threadedly connected with the first threaded hole 211.

[0145] The first sliding groove 209 is arranged on the circumferential outer surface of the first sleeve 201, and at least the first sliding groove 209 is spaced apart from the edge profile of the first sleeve 201 close to the second sleeve 202 in the direction from the first sleeve 201 to the second sleeve 202 (see Figure 9 ), that is, at least the first sliding groove 209 does not penetrate through the first sleeve 201 in the direction from the first sleeve 201 to the second sleeve 202, thereby forming a limiting portion on the first sleeve 201;

[0146] When the first positioning pin 4 is arranged in the first sliding groove 209 and the first positioning hole 210 respectively, as the distance between the first sleeve 201 and the second sleeve 202 gradually increases, the first positioning pin 4 slides in the first sliding groove 209, and in the case that the first sleeve 201 tends to rotate relative to the second sleeve 202 due to the frictional force of the threaded rod 204, the tendency of the first sleeve 201 to rotate is prevented by the connecting portion of the first positioning pin 4 and the first sliding groove 209, so that the first sleeve 201 cannot rotate relative to the second sleeve 202;

[0147] When the first positioning pin 4 is arranged in the first sliding groove 209 and the first positioning hole 210 respectively, as the distance between the second sleeve 202 and the first sleeve 201 gradually increases, the first positioning pin 4 slides in the first sliding groove 209, and the first sleeve 201 and the second sleeve 202 form a mutual separation trend. Affected by the first positioning pin 4, the first sliding groove 209 and the aforementioned limiting portion on the first sleeve 201, the limiting portion on the first sleeve 201 is in contact with the first positioning pin 4, thereby preventing the first sleeve 201 and the second sleeve 202 from separating from each other.

[0148] Further, the compression part 3 in the embodiment is a non-inflatable air bag or a rubber block.

[0149] The compression part 3 is located outside the third sleeve 203, and the center line of the compression part 3 coincides with the center line of the threaded rod 204. The compression part 3 is arranged on the third sleeve 203 by an adhesive, or the compression part 3 is arranged on the third sleeve 203 by a hook and loop fastener.

[0150] The non-inflatable air bag or rubber block is used as the compression part 3, which can balance the pressure of the compression force applied to the body surface of the patient, thereby improving the comfort of the patient. Specifically, after the non-inflatable air bag or rubber block applies a compression force to the body surface of the patient, the surface of the non-inflatable air bag or rubber block is deformed under the influence of the reaction force of the body surface of the patient, thereby the surface of the deformed non-inflatable air bag or rubber block is more closely attached to the body surface of the patient, and the contact area is larger, thereby balancing the pressure.

[0151] It should be understood that the non-inflatable air bag is actually an air bag whose air pressure inside the air bag is not adjustable.

[0152] The compression part 3 is connected to the third stress plate 208 of the third sleeve 203, so that after the compression part 3 receives the force of the third stress plate 208, the compression part 3 can apply a force to the body surface of the patient or the puncture part of the groin artery.

[0153] It should be understood that the compression part 3 can also be a part made of other rigid materials, or the third stress plate 208 arranged at the end of the third sleeve 203 can directly act on the compression part 3, but using a compression part 3 made of rigid material or using the third stress plate 208 as a compression part 3 will cause the pressure of the compression force applied to the body surface of the patient to be unbalanced.

[0154] In the foregoing, although the mechanical pressure adjustment is formed by the way that the threaded rod 204 exerts force on the second sleeve 202, after the patient actually undergoes the inguinal minimally invasive surgery, the patient needs to spend a relatively long time to compress the puncture part of the inguinal artery, for example, 6-8 hours; during this period, the patient needs to lie on the bed, and the longer the lying time, the more uncomfortable the patient's body surface is compressed, so that the patient will make the leg bending or the leg bending caused by the turning over action; after the patient's leg bending, the foregoing binding mechanism 1 will change from the tightening state to the relaxed state, and then the compression force exerted by the compression component 3 on the patient's body surface or the puncture part of the inguinal artery tends to decrease, which may cause the symptoms of pseudoaneurysm to appear.

[0155] In order to solve the technical problem that the compression force exerted by the compression component 3 on the patient's body surface or the puncture part of the inguinal artery tends to decrease due to the patient's leg bending, the embodiment provides a blood vessel compression device using an inflatable air bag, and cooperates with the air pump and the controller in the following embodiment 3 to form a blood vessel compression system.

[0156] Specifically, referring to Figure 7 In the embodiment, the blood vessel compression device is provided with an inflatable air bag 6 and a film pressure sensor 7 between the second sleeve 202 and the third sleeve 203;

[0157] The film pressure sensor 7 is located between the inflatable air bag 6 and the third sleeve 203, the inflatable air bag 6 is located between the film pressure sensor 7 and the second sleeve 202, and the inflatable air bag 6 is used to exert force on the second force receiving plate 207 and the third force receiving plate 208;

[0158] The inflation tube of the inflatable air bag 6 extends from the inside of the third sleeve 203 to the outside of the third sleeve 203, wherein the third sleeve 203 is provided with a first through hole 214 (see Figure 12 Or Figure 13 The inflation tube penetrates the first through hole 214;

[0159] The lead wire of the film pressure sensor 7 extends from the inside of the third sleeve 203 to the outside of the third sleeve 203, wherein the third sleeve 203 is provided with a second through hole 215 (see Figure 13 The lead wire penetrates the second through hole 215;

[0160] The second sleeve 202 is provided with a plurality of positioning blocks 212;

[0161] Any one of the positioning blocks 212 is arranged at the axial end of the second sleeve 202, respectively, and any one of the positioning blocks 212 is limited between the second sleeve 202 and the third sleeve 203, respectively, and any one of the positioning blocks 212 can contact the third sleeve 203, respectively;

[0162] A gap is formed between two adjacent positioning blocks 212, which is used for being penetrated by an inflation tube or a wire.

[0163] During the process of applying force to the second sleeve 202 by the knob 205 and the threaded rod 204, the second sleeve 202 applies force to the third force receiving plate 208 of the third sleeve 203 through the positioning blocks 212, at this time, the inflatable air bag does not apply force to the second force receiving plate 207 of the second sleeve 202 and the third force receiving plate 208 of the third sleeve 203.

[0164] After the blood vessel compressor of the present embodiment is combined with the air pump and the controller in Example 3 described below to form a blood vessel compression system, the inflatable air bag 6 is filled with compressed air, so that the volume of the inflatable air bag 6 increases, and the inflatable air bag 6 applies force to the second force receiving plate 207 and the third force receiving plate 208, respectively.

[0165] At the same time when the inflatable air bag 6 applies force to the second force receiving plate 207 and the third force receiving plate 208, since the thin film pressure sensor 7 is limited between the inflatable air bag 6 and the third sleeve 203, specifically, between the inflatable air bag 6 and the third force receiving plate 208 of the third sleeve 203, the thin film pressure sensor 7 can receive the force applied by the inflatable air bag to the third force receiving plate 208, and the thin film pressure sensor 7 sends an electric signal to the controller under the force, so that the controller can form the effect of automatic pressure adjustment of the inflatable air bag according to the electric signal of the thin film pressure sensor 7; the specific automatic control scheme is described in Example 3 described below.

[0166] When the patient's leg is bent, the force applied by the binding mechanism 1 to the pressurizing mechanism 2 and the compression component 3 tends to decrease, so that the compression force applied by the compression component 3 to the puncture part of the patient's body surface or the groin artery tends to decrease, and thus the distance between the second sleeve 202 and the third sleeve 203 tends to increase, resulting in a decrease in the pressure of the current inflatable air bag 6 applied to the thin film pressure sensor 7; in this case, the controller drives the air pump according to the automatic adjustment program, so that the air pressure in the inflatable air bag 6 increases, and then the volume of the inflatable air bag 6 with increased air pressure increases, so that the force applied by the inflatable air bag 6 between the second sleeve 202 and the third sleeve 203 increases, balancing or eliminating the phenomenon of 'the decrease in the pressure of the inflatable air bag 6 applied to the thin film pressure sensor 7', and further eliminating the phenomenon of 'the force applied by the binding mechanism 1 to the pressurizing mechanism 2 and the compression component 3 tends to decrease, so that the compression force applied by the compression component 3 to the puncture part of the patient's body surface or the groin artery tends to decrease'.

[0167] When the patient's leg changes from a bent state to a straight state, the force exerted by the binding mechanism 1 on the pressurizing mechanism 2 and the compression component 3 tends to increase, so that the compression force exerted by the compression component 3 on the patient's body surface or the puncture part of the groin artery tends to increase, thereby the distance between the second sleeve 202 and the third sleeve 203 tends to decrease, causing the current inflatable air bag 6 to increase the pressure exerted on the diaphragm pressure sensor 7; in this case, the controller drives the electromagnetic valve to open according to the automatic adjustment program (the electromagnetic valve will be described in the following embodiment 3), so that the air pressure of the inflatable air bag 6 decreases, and then the volume of the inflatable air bag 6 with reduced air pressure decreases, thereby the force exerted by the inflatable air bag 6 between the second sleeve 202 and the third sleeve 203 decreases, balancing or eliminating the phenomenon of 'the current inflatable air bag 6 increasing the pressure exerted on the diaphragm pressure sensor 7', and then eliminating the phenomenon of 'the force exerted by the binding mechanism 1 on the pressurizing mechanism 2 and the compression component 3 tends to increase, so that the compression force exerted by the compression component 3 on the patient's body surface or the puncture part of the groin artery tends to increase'.

[0168] Further, in order to avoid the separation of the second sleeve 202 and the third sleeve 203 from each other during use, preferably, a sliding limiting structure is arranged between the second sleeve 202 and the third sleeve 203.

[0169] Specifically, referring to Figure 10 、 Figure 12 or Figure 14 , the vascular compressor in the embodiment further comprises a second positioning pin 8 and a second locking nut 9.

[0170] The second sleeve 202 is provided with a second sliding groove 213, the third sleeve 203 is provided with a second positioning hole 10 and a second threaded hole 11, the second positioning hole 10 is located between the second sliding groove 213 and the second threaded hole 11, the second positioning hole 10 is in communication with the second sliding groove 213 and the second threaded hole 11 respectively, one end of the second positioning pin 8 is arranged in the second sliding groove 213, the other end of the second positioning pin 8 is arranged in the second positioning hole 10, and the second locking nut 9 is threadedly connected with the second threaded hole 11.

[0171] Among them, the second sliding groove 213 is arranged on the circumferential outer surface of the second sleeve 202, and at least the second sliding groove 213 and the edge profile of the second sleeve 202 close to the third sleeve 203 have a spacing along the direction from the second sleeve 202 to the third sleeve 203, that is, at least the second sliding groove 213 does not penetrate through the second sleeve 202 along the direction from the second sleeve 202 to the third sleeve 203, thereby forming a limiting part on the second sleeve 202;

[0172] When the second positioning pin 8 is arranged in the second sliding groove 213 and the second positioning hole 10 respectively, as the distance between the second sleeve 202 and the third sleeve 203 gradually increases, the second positioning pin 8 slides in the second sliding groove 213; at the same time, the second sleeve 202 and the third sleeve 203 form a mutual separation movement trend, which is affected by the second positioning pin 8, the second sliding groove 213 and the aforementioned 'limiting portion on the second sleeve 202', the 'limiting portion on the second sleeve 202' is in contact with the second positioning pin 8, thereby preventing the second sleeve 202 and the third sleeve 203 from separating from each other.

[0173] Further, referring to Figure 7 In the blood vessel compressor in the embodiment, the second sleeve 202 is provided with a thrust ball bearing 12 and a push block 13.

[0174] The thrust ball bearing 12 is arranged between the second stress plate 207 and the push block 13, and the threaded rod 204 is configured to contact the push block 13.

[0175] The threaded rod 204 contacts the push block 13 during rotation, so that the rotational friction between the threaded rod 204 and the second stress plate 207 is offset by the push block 13 and the thrust ball bearing 12; specifically, when the threaded rod 204 rotates, the friction between the threaded rod 204 and the push block 13 drives the push block 13 to have a rotating trend, and the push block 13 with the rotating trend drives the thrust ball bearing 12 to rotate, thereby reducing the rotational friction between the threaded rod 204 and the second stress plate 207, so that the medical staff can operate the knob 205 of the embodiment more easily.

[0176] It should be understood that the specific structure of the thrust ball bearing 12 is known or should be known to those skilled in the art.

[0177] Embodiment 3:

[0178] In the embodiment, a blood vessel compression system is provided for realizing the function of automatically adjusting the inflation pressure of the inflatable air bag in the foregoing embodiment 2.

[0179] Specifically, the blood vessel compression system of the embodiment includes a blood vessel compressor with an inflatable air bag as in the foregoing embodiment 2.

[0180] It also includes a controller, an air pump, a three-way connector, a one-way valve and a solenoid valve.

[0181] The controller is electrically connected with the air pump, the solenoid valve and the membrane pressure sensor 7 of the blood vessel compressor respectively.

[0182] The air outlet of the air pump is connected with the first pipe opening of the three-way connector through an air outlet pipe, and the one-way valve is located between the first pipe opening and the air outlet.

[0183] The electromagnetic valve is arranged on the second port of the tee connector;

[0184] The third port of the tee connector is connected to the inflation tube of the inflatable balloon 6 of the blood vessel compressor.

[0185] The air pump is the source of compressed air, the air outlet of the air pump is connected to the first port of the tee connector through the air outlet tube, and the third port of the tee connector is connected to the inflation tube of the inflatable balloon in the aforementioned embodiment 2, so that the compressed air generated by the air pump can be injected into the inflatable balloon through the air outlet tube and the tee connector;

[0186] The air pressure in the inflatable balloon needs to be adjusted, specifically, the air pressure needs to be increased or decreased, so that in the case of needing to increase the air pressure, the air pump needs to be inflated into the inflatable balloon, and in the case of needing to decrease the air pressure, the compressed air in the inflatable balloon needs to be discharged to the outside of the inflatable balloon; therefore, an electromagnetic valve is arranged on the tee connector, and when it is needed to discharge the compressed air in the inflatable balloon, the valve core of the electromagnetic valve is adjusted to be in a conductive state, so that the compressed air in the inflatable balloon is discharged to the outside of the inflatable balloon through the tee connector and the electromagnetic valve;

[0187] After the aforementioned inflation of the inflatable balloon, and in the case that the valve core of the electromagnetic valve is adjusted to be in a cut-off state, the compressed air in the inflatable balloon may reach the air pump along the tee connector and the air outlet tube, and be discharged to the atmosphere at the air pump, resulting in a decrease in the air pressure of the compressed air in the inflatable balloon; to avoid this situation, a one-way valve should be arranged between the first port of the tee connector and the air outlet of the air pump, in the direction from the inflatable balloon to the air pump, the one-way valve is used to prevent the flow of compressed air, and vice versa, in the direction from the air pump to the inflatable balloon, the one-way valve does not prevent the flow of compressed air.

[0188] The controller is electrically connected with the thin film pressure sensor 7 in the aforementioned embodiment 2, and the specific connection structure is the common knowledge of those skilled in the art, which will not be described here. In addition, the controller is electrically connected with the electromagnetic valve and the air pump, and the specific connection structure is the common knowledge of those skilled in the art, which will not be described here.

[0189] The controller is integrated with an automatic control program, the electric signal of the film pressure sensor 7 received by the controller is converted into feedback data by the automatic control program of the controller, and the automatic control program outputs corresponding control signals according to the feedback data; the control signals have two kinds, the first kind is a control signal for controlling the air pump to be aerodynamic, and the second kind is a control signal for controlling the electromagnetic valve to be on or off; when the controller executes the automatic control program and judges that the force applied by the current inflatable air bag on the film pressure sensor 7 shows a decreasing trend, the controller generates the first kind of control signal, and the air pump starts to inflate the inflatable air bag after receiving the first kind of control signal; at this time, since the controller does not generate the second kind of control signal, the valve core of the electromagnetic valve remains in the off state; on the contrary, when the controller executes the automatic control program and judges that the force applied by the current inflatable air bag on the film pressure sensor 7 shows an increasing trend, the controller generates the second kind of control signal, and the electromagnetic valve changes from the off state to the on state after receiving the second kind of control signal, so that the compressed air in the inflatable air bag is discharged through the electromagnetic valve.

[0190] It should be understood that the controller can adopt the controller in the prior art, including but not limited to: single-chip microcomputer.

[0191] It should be understood that the signal form between the controller and the film pressure sensor 7, the signal form between the controller and the electromagnetic valve, and the signal form between the controller and the air pump are respectively the common knowledge known by those skilled in the art, which will not be repeated here.

[0192] The above only describes the preferred embodiments of the present application, and does not limit the patent scope of the present application, any equivalent structural transformation made by using the content of the specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A positioning device, characterized in that, Includes a bottom positioning plate and at least one movable positioning plate; The movable positioning plate is mounted on the bottom positioning plate via a rotating shaft, wherein the movable positioning plate and the bottom positioning plate are arranged face to face. The bottom positioning plate is provided with a bottom positioning groove for positioning the vascular compressor. The bottom positioning groove and the edge of the bottom positioning plate form a first notch. The opening width of the first notch matches the width of the vascular compressor. The movable positioning plate is provided with a movable positioning groove for positioning the ultrasonic probe. The movable positioning groove and the edge of the movable positioning plate form a second notch. The opening width of the second notch matches the minimum width of the ultrasonic probe. Along the axial direction of the rotation axis, the bottom positioning groove and the movable positioning groove can be adjusted to be connected or disconnected, wherein the opening width of the first notch is greater than the opening width of the second notch.

2. The positioning device according to claim 1, characterized in that, The number of movable positioning plates is one, and the movable positioning plate is provided with a movable positioning groove, wherein the movable positioning groove is used to accommodate an ultrasonic probe with a circular end face; Alternatively, the number of movable positioning plates is one, and the movable positioning plate is provided with a movable positioning groove, wherein the movable positioning groove is used to accommodate an ultrasonic probe with a rectangular end face; Alternatively, there may be two movable positioning plates, wherein the first movable positioning plate is provided with a first movable positioning groove for accommodating a circular ultrasonic probe, and the second movable positioning plate is provided with a second movable positioning groove for accommodating an ultrasonic probe with a rectangular end face. Alternatively, the number of movable positioning plates is one, and the movable positioning plate is provided with two movable positioning slots, wherein the first movable positioning slot is used to accommodate an ultrasonic probe with a circular end face, and the second movable positioning slot is used to accommodate an ultrasonic probe with a rectangular end face.

3. The positioning device according to claim 1 or 2, characterized in that, The movable positioning plate includes a first plate-shaped portion and a second plate-shaped portion; The first plate-shaped portion is disposed on the bottom positioning plate via the rotating shaft, and the second plate-shaped portion forms a sliding pair with the first plate-shaped portion. A locking mechanism is provided between the first plate-shaped portion and the second plate-shaped portion. The movable positioning groove is provided on the second plate-shaped portion; The bottom positioning plate is provided with indicator lines, wherein when the vascular compressor is inserted into the bottom positioning groove, the extension line of the indicator lines intersects with the center of the vascular compressor. The second plate-shaped portion is provided with an indicator groove, which extends through the second plate-shaped portion along a direction perpendicular to the plate surface. When the ultrasonic probe is inserted into the movable positioning groove, the extension line of the indicator groove intersects with the center of the end face of the ultrasonic probe. The indicator lines and the indicator grooves can be adjusted to overlap.

4. A vascular compressor, characterized in that, Includes a strapping mechanism, a pressurizing mechanism, and a compression component; The pressurizing mechanism and the compression component are fixedly or detachably connected, and the strap mechanism is used to fix the pressurizing mechanism and the compression component to the human body; The pressing component is used to contact the human body, wherein the pressing component can be engaged into the bottom positioning groove of the positioning device as described in claim 1.

5. The vascular compressor according to claim 4, characterized in that, The pressurization mechanism includes a first sleeve, a second sleeve, a third sleeve, a threaded rod, and a knob; The second sleeve is confined between the first sleeve and the third sleeve; The first sleeve is configured to be inserted into the second sleeve, and the first sleeve and the second sleeve are configured as a first sliding pair, the sliding direction of the first sliding pair being parallel to the axial direction of the threaded rod; The second sleeve is configured to be inserted into the third sleeve, and the second sleeve and the third sleeve are configured as a second sliding pair, the sliding direction of the second sliding pair being parallel to the axial direction of the threaded rod; The first sleeve is provided with a first force-bearing plate, which is located at the end of the first sleeve. The first force-bearing plate is provided with a threaded hole, and the threaded rod is threadedly connected to the threaded hole. The second sleeve is provided with a second force-bearing plate, which is located inside the second sleeve. The second force-bearing plate is used to receive the force applied by the threaded rod to the second sleeve. The third sleeve is provided with a third force-bearing plate, which is located inside or at the end of the third sleeve. The third force-bearing plate is used to receive the force applied by the second sleeve to the third sleeve. The knob is located on the end of the threaded rod outside the first sleeve.

6. The vascular compressor according to claim 5, characterized in that, It also includes a first locating pin and a first locking nut; The first sleeve is provided with a first sliding groove, the second sleeve is provided with a first positioning hole and a first threaded hole, the first positioning hole is located between the first sliding groove and the first threaded hole, the first positioning hole communicates with the first sliding groove and the first threaded hole respectively, one end of the first positioning pin is provided in the first sliding groove, the other end of the first positioning pin is provided in the first positioning hole, and the first locking nut is threadedly connected to the first threaded hole. It also includes a second locating pin and a second locking nut; The second sleeve is provided with a second sliding groove, and the third sleeve is provided with a second positioning hole and a second threaded hole. The second positioning hole is located between the second sliding groove and the second threaded hole, and the second positioning hole communicates with the second sliding groove and the second threaded hole respectively. One end of the second positioning pin is provided in the second sliding groove, and the other end of the second positioning pin is provided in the second positioning hole. The second locking nut is threadedly connected to the second threaded hole.

7. The vascular compressor according to claim 5, characterized in that, The compression component is a non-inflatable airbag or latex block; The pressing component is located outside the third sleeve, and the center line of the pressing component coincides with the center line of the threaded rod. The pressing component is attached to the third sleeve by an adhesive or by a hook and loop fastener.

8. The vascular compressor according to claim 5, characterized in that, An inflatable airbag and a thin-film pressure sensor are provided between the second sleeve and the third sleeve; The thin-film pressure sensor is located between the inflatable airbag and the third sleeve. The inflatable airbag is located between the thin-film pressure sensor and the second sleeve. The inflatable airbag is used to apply force to the second force plate and the third force plate. The inflation tube of the inflatable airbag extends from the inside of the third sleeve to the outside of the third sleeve, wherein the third sleeve is provided with a first through hole, and the inflation tube penetrates the first through hole; The wire of the thin-film pressure sensor extends from the inside of the third sleeve to the outside of the third sleeve, wherein the third sleeve is provided with a second through hole, and the wire passes through the second through hole; The second sleeve is provided with multiple positioning blocks; Each of the positioning blocks is respectively disposed at the axial end of the second sleeve, and each of the positioning blocks is respectively constrained between the second sleeve and the third sleeve, and each of the positioning blocks can respectively contact the third sleeve; A gap is formed between two adjacent positioning blocks, and the gap is used to be penetrated by the inflation tube or the wire.

9. The vascular compressor according to claim 5, characterized in that, The second sleeve is equipped with a thrust ball bearing and a push block; The thrust ball bearing is disposed between the second force plate and the push block, and the threaded rod is configured to contact the push block.

10. A vascular compression system, characterized in that, Includes the vascular compressor as described in any one of claims 4 to 9; It also includes a controller, an air pump, a three-way connector, a check valve, and a solenoid valve; The controller is electrically connected to the air pump, the solenoid valve, and the thin-film pressure sensor of the vascular compressor, respectively. The air pump's outlet is connected to the first port of the three-way connector via an outlet pipe. The one-way valve is located between the first pipe port and the air outlet; The solenoid valve is installed on the second port of the three-way connector; The third port of the three-way connector is connected to the catheter of the inflatable balloon of the vascular compressor.

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