Medical hemostatic compression device

Abstract

The application relates to the medical field and discloses a medical hemostatic compressor, which comprises an inflation pressing unit and a mechanical pressing unit, the inflation pressing unit is arranged at the center position of the inflation pressing unit, the mechanical pressing unit comprises a sleeve and a threaded rod which are screw-connected, the lower end of the threaded rod is provided with a pressing piece which is used for pressing the puncture point position, the inflation pressing unit comprises a shell, the shell is provided with an inflation cavity and an inflation assembly in the shell, the lower side of the inflation cavity is provided with an air film, the inflation assembly is used for inflating the inflation cavity, the air film is inflated under the action of air pressure, and the air film is used for pressing the position around the puncture point. After the pressing strength is reduced, the tightness of the fixing belt is also reduced.

Description

Technical Field

[0001] The present invention relates to the medical field, in particular to a medical hemostatic compressor. Background Art

[0002] Patients usually need to puncture an artery to administer anesthetics during surgery, and after the operation, they need to press on the puncture site to stop bleeding, which usually takes a long time, up to several hours.

[0003] In the prior art, the compressor is fixed to the patient's limb by a fixing belt. According to the doctor's instructions, the knob is rotated after several hours to reduce the pressure. However, after reducing the pressure, the tightness of the fixing belt will also decrease, which will cause the compression position to deviate easily. Frequent adjustment of the tightness of the fixing belt is very inconvenient. Removing the fixing belt and readjusting it many times will also reduce the compression effect and slow down the recovery speed of the puncture point. Summary of the Invention

[0004] The present invention aims to provide a medical hemostatic compressor, which can reduce the tightness of a fixing belt when the pressing force is reduced.

[0005] To achieve the above-mentioned object, the present invention adopts the following technical solution: a medical hemostatic compressor, comprising an inflatable pressing unit and a mechanical pressing unit, wherein the inflatable pressing unit is arranged at the center of the inflatable pressing unit;

[0006] The mechanical pressing unit includes a threaded sleeve and a threaded rod, and a tightening piece is provided at the lower end of the threaded rod, which is used to tighten the puncture point; the inflatable pressing unit includes a shell, an inflatable cavity and an inflatable component are provided in the shell, an air film is provided on the lower side of the inflatable cavity, and the inflatable component is used to inflate the air into the inflatable cavity. The air film bulges under the action of air pressure, and the air film is used to press the position around the puncture point.

[0007] The beneficial effects of this program are:

[0008] 1. In the initial state, by rotating the threaded rod, the abutment piece presses the puncture point to achieve hemostasis;

[0009] After several hours, rotate the threaded rod to reduce the pressing force. At this time, the inflation component is inflated to make the air film swell up, increasing the pressure of the air film on the area around the puncture point, thereby maintaining the tightness of the fixing belt and preventing the tightness of the fixing belt from decreasing.

[0010] 2. In the prior art, simply using a mechanical pressing unit for pressing will form an indentation mark around the pressing area, which can easily cause discomfort to patients, especially patients with poor physical condition, and the indentation cannot be restored for a long time; in this solution, an inflatable pressing unit is set around the mechanical pressing unit to form a transition between the mechanical pressing area and other areas, avoiding the formation of indentation marks and improving the patient's comfort.

[0011] 3. The inventors have considered eliminating the mechanical pressing unit and using only the pneumatic pressing unit. However, due to the large pressing area of ​​the pneumatic pressing unit, the position of the maximum pressure cannot be determined, and effective pressing cannot be formed. Therefore, a combination of two pressing units is adopted. First, the puncture point position is accurately pressed by the mechanical pressing unit to complete the pressing positioning. At the same time, it can also prevent the patient from accidentally touching the compressor and causing displacement. Then, the airbag is inflated to bulge. The closer the air film is to the edge, the smaller the bulge is, thus forming a transition to ensure the patient's comfort.

[0012] Furthermore, a pressing block is provided at the center position of the lower side of the air film, and the shapes of the lower side of the pressing piece and the upper side of the pressing block match each other, so that the pressing piece presses against the puncture point by pressing against the pressing block.

[0013] Furthermore, a sliding cavity is vertically provided in the threaded rod, a sliding rod is provided on the upper side of the pressing block, the upper end of the sliding rod passes through the air film and the tightening piece and is inserted into the sliding cavity, the sliding rod, the tightening piece and the sliding cavity are slidably connected, and the bottom of the sliding rod and the air film are sealed.

[0014] Furthermore, a limiting portion is provided at the upper end of the slide rod, and the limiting portion is used to limit the slide rod from sliding out of the slide groove.

[0015] Furthermore, the center position of the upper side of the pressing block is connected to the sliding rod, and the remaining positions on the upper side of the pressing block are bonded to the lower surface of the air film.

[0016] Furthermore, the lower side of the pressing member and the upper side of the pressing block are both arc-shaped.

[0017] Furthermore, an air inlet cavity is provided in the shell, and the air inlet cavity is connected to the inflation cavity. The inflation component includes a sealing plate, and an elastic member is provided between the upper side of the sealing plate and the air inlet cavity. The sealing plate is used to press the gas in the air inlet cavity into the inflation cavity.

[0018] Furthermore, the threaded rod includes a base section and an engaging section from top to bottom, and the base section is threadedly connected to the sleeve; the inflation component also includes a first gear, a transmission shaft, a second gear and a vertical rack, the engaging section is engaged with the first gear, and the two ends of the rotating shaft are respectively connected to the center of the first gear and the second gear, the radius of the second gear is larger than that of the first gear, the second gear is engaged with the vertical rack, the upper end of the vertical rack is connected to the sealing plate, and the lower end of the vertical rack is inserted into the bottom side of the air intake chamber and is slidably connected to the bottom side of the air intake chamber.

[0019] Furthermore, a one-way valve and a pressure valve are provided on the side wall of the air inlet chamber. The one-way valve is used to inflate the air inlet chamber from the outside, and the pressure valve is used to release excess pressure in the pressure chamber.

[0020] This solution also has the following effects:

[0021] 1. Since the air membrane is in direct contact with the patient's skin, if a fastening member is used to press against the puncture point, the fastening member needs to first press against the inner side of the air membrane, and then press against the puncture point through the air membrane. However, directly pressing against the air membrane in this way will cause the air membrane to bulge locally, which is easy to damage the air membrane.

[0022] In this solution, a pressing block is set in advance under the air film. In the initial state, the position where the pressing block is set on the air film is concave, and then the pressing member presses the air film and the pressing block downward together to reduce the degree of concavity, avoid the situation where the air film is partially convex, and avoid the pressing member damaging the air film.

[0023] 2. To secure the pressing block and prevent it from shaking when being picked up when not in use, and to ensure that the pressing block can accurately locate the puncture point when in use, a sliding rod is provided on the upper side of the pressing block. The sliding rod is inserted into the sliding cavity to limit the horizontal position, allowing only vertical movement of the pressing block and the sliding rod relative to the sliding cavity. A limiter is also provided to prevent the sliding rod from sliding out.

[0024] Since the sliding rod needs to pass through the air film, the part between the air film and the sliding rod needs to be sealed. This solution adopts the method of bonding the upper side of the pressing block and the lower surface of the air film, and uses sealant for sealing.

[0025] 3. Using a motor or fan to directly blow air into the inflatable cavity is obviously too costly and unnecessary, and directly connecting these devices to the compressor does not facilitate patient movement.

[0026] Therefore, this solution first passes the gas into the air intake chamber through the one-way valve for storage, and no additional gas needs to be introduced during the subsequent pressure adjustment process. When you want to reduce the pressing force, rotate the threaded rod to drive the tightening part to move upward, which in turn drives the first gear, the transmission shaft and the second gear to rotate. The second gear drives the vertical rack and the sealing plate to move downward, thereby pressing the gas in the air intake chamber into the inflation chamber, causing the air film to further swell, which can not only make up for the gas leakage under long-term air pressure, but also make up for the loosening of the fixing belt caused by the reduction of the force of the threaded rod.

[0027] 4. Because the threaded rod and the first gear are a worm gear structure, the transmission motion is irreversible. The first gear cannot drive the threaded rod to rotate in the opposite direction. Therefore, when the patient's puncture point swells, the reverse squeeze of the air film will not drive the sealing plate to move upward, and it will be blocked by the threaded rod. The only way to release the excess air pressure is through the pressure relief valve.

[0028] This prevents the sealing plate from sequentially driving the vertical rack, the second gear, the transmission shaft, and the first gear to move; and prevents the threaded rod from ultimately being driven downward to press against the puncture point, thereby worsening the puncture point. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of Example 1 being fixed on an arm;

[0030] Figure 2 This is a schematic diagram of the internal structure of Example 1;

[0031] Figure 3 for Figure 2 AA section view;

[0032] Figure 4 for Figure 2 BB cross-sectional view;

[0033] Figure 5 Schematic diagram of the interior of the threaded rod of Example 1. DETAILED DESCRIPTION

[0034] The following is further described in detail through specific implementation methods:

[0035] The figure marks in the drawings of the specification include: fixing belt 1, arm 2, sleeve 31, threaded rod 32, tightening member 33, pressing block 34, sliding cavity 35, sliding rod 36, limiting portion 37, end 38, shell 4, inflation cavity 41, air inlet cavity 42, sealing plate 43, guide block 44, guide groove 45, elastic member 46, vertical rack 51, first gear 52, transmission shaft 53, second gear 54, air film 6.

[0036] Example 1

[0037] like Figure 1 As shown: a medical hemostatic compressor, which is fixed to the patient's limb in conjunction with a fixing belt 1. The fixing belt 1 is a prior art, that is, an existing compressor fixing belt 1. In this embodiment 1, the fixing belt 1 is used to be tied to the patient's arm 2;

[0038] Example 1 is basically as Figure 2-Figure 5 As shown, a medical hemostatic compressor includes an inflatable pressing unit and a mechanical pressing unit, wherein the inflatable pressing unit is arranged at the center of the inflatable pressing unit;

[0039] like Figure 2 As shown, the mechanical pressing unit includes a sleeve 31 and a threaded rod 32. The threaded rod 32 includes a base section and an engagement section from top to bottom. The upper end of the base section is integrally formed with a terminal 38 for easy manual rotation. The base section passes through the sleeve 31 and is threadedly connected to the sleeve 31. The lower end of the engagement section is welded with a fastening member 33. The fastening member 33 is in the shape of an arc cover and is used to fasten the puncture point.

[0040] The inflation pressing unit includes a shell 4, in which an inflation chamber 41 and an air inlet chamber 42 are interconnected. A one-way valve and a pressure valve (not shown in the figure) connected to the outside are provided on the side wall of the air inlet chamber 42. The one-way valve is used to inflate the air inlet chamber 42 from the outside, and the pressure valve is used to release excess pressure in the pressure chamber. An inflation assembly is provided in the air inlet chamber 42, and the inflation assembly includes a sealing plate 43. A plurality of elastic members 46 are vertically adhered between the upper side of the sealing plate 43 and the air inlet chamber 42. The elastic members 46 are springs. The sealing plate 43 separates the air inlet chamber 42 from top to bottom and seals the gap (the edge of the sealing plate 43 is sealed with rubber). The sealing plate 43 is used to press the gas in the air inlet chamber 42 into the inflation chamber 41. Figure 4 As shown, the sealing plate 43 is integrally formed with two guide blocks 44 in the annular direction, and two vertical guide grooves 45 are opened on the side wall of the air inlet cavity 42, and the guide blocks 44 are respectively slid vertically in the guide grooves 45; four vertical racks 51 are circumferentially welded on the lower side of the sealing plate 43, and the lower ends of the vertical racks 51 are inserted into the bottom side of the air inlet cavity 42 and are slidably connected to the bottom side of the air inlet cavity 42.

[0041] like Figure 3 As shown, the inflation component also includes two first gears 52, two transmission shafts 53 and four second gears 54. The two sides of the meshing section are respectively meshed with the two first gears 52. The rotating shafts are all arranged horizontally, and the two ends are respectively connected to the center of the first gear 52 and the second gear 54. The radius of the second gear 54 is larger than that of the first gear 52. The second gears 54 are respectively meshed with the corresponding vertical racks 51. The rotating shaft is rotatably connected to the inner wall of the air intake chamber 42. This is the existing technology, and bearing support can be provided, which will not be repeated.

[0042] like Figure 2 As shown, the sleeve is disposed within the air inlet cavity 42, with the upper end of the sleeve welded to the upper inner wall of the air inlet cavity 42. The lower end of the threaded rod 32 passes through the air inlet cavity 42 and enters the inflation cavity 41. An air membrane 6 is provided on the lower side of the inflation cavity 41. The inflation assembly is used to inflate the inflation cavity 41. The air membrane 6 swells under the action of air pressure and is used to press the area around the puncture point. A pressing block 34 is adhered to the center of the lower side of the air membrane 6. The adhesive material is sealant. The lower side of the abutting member 33 and the upper side of the pressing block 34 match in shape, and both contact surfaces are arcuate. The abutting member 33 abuts the pressing block 34, thereby abutting the puncture point.

[0043] like Figure 5As shown, a sliding cavity 35 is vertically opened in the threaded rod 32, and the lower end of the sliding cavity 35 passes through the lower end of the threaded rod 32. The diameter of the opening at the lower end of the sliding cavity 35 is larger than the diameter of the rest of the part. A sliding rod 36 is welded on the upper side of the pressing block 34, and the upper end of the sliding rod 36 passes through the air film 6 and the fastening member 33 and is inserted into the sliding cavity 35. A limiting portion 37 is welded on the upper end of the sliding rod 36, and the limiting portion 37 and the sliding cavity 35 have a clearance fit, and the sliding rod 36 and the lower end opening of the sliding cavity 35 have a clearance fit, and the limiting portion 37 is used to limit the sliding rod 36 from sliding out of the slide groove. The sliding rod 36 and the limiting portion 37 are both slidably connected to the sliding cavity 35, and the peripheral position of the sliding rod 36 on the upper surface of the pressing block 34 and the lower surface of the air film 6 are sealed with sealant, and an annular thermal insulation gap is left between the periphery of the upper surface of the pressing block 34 and the air film 6.

[0044] When the lower end of the threaded rod 32 is pressed against the puncture point through the pressing block 34, the skin around the puncture point and the pressing block 34 is squeezed to form a raised skin, and the raised skin is accommodated in the thermal insulation gap between the pressing block 34 and the air film 6. The raised skin is stimulated by the pressure and tends to emit more heat, and due to the existence of the air film 6, this heat is retained in the thermal insulation gap; when the puncture point has basically stopped bleeding and the wound needs to be restored, a higher temperature is required to accelerate the healing of the wound; at this time, the threaded rod 32 rotates upward, reducing the pressing force, and the air film 6 bulges, gradually pushing the gas in the thermal insulation gap toward the puncture point, and the gas transfers the temperature to the transfer point, thereby accelerating the healing of the wound.

[0045] Example 2

[0046] Example 2 is based on Example 1: the shell 4 is made of transparent plastic material, and the air membrane 6 is made of transparent silicone material, so that medical staff can observe the puncture point at any time and take emergency measures.

[0047] Example 3

[0048] Example 3 is based on Example 1 or Example 2: it also includes an electrically connected blood detection unit and an alarm unit. The blood detection unit and the alarm unit are both existing technologies. The blood detection unit includes an electrically connected processor and a plurality of probes. The plurality of probes are distributed on the edge of the lower surface of the pressing fastener. The processor and the alarm unit are both installed on the outside of the shell 4. When the skin at the puncture point bleeds, the probe and the blood are short-circuited after contact, and the processor sends a signal to the alarm unit. The alarm unit sounds an alarm to remind medical staff to come for inspection.

[0049] The above is only an embodiment of the present invention, and the common knowledge such as the specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.

Claims

1. A medical hemostatic compressor, characterized in that: Including an inflatable pressing unit and a mechanical pressing unit; The mechanical pressing unit includes a sleeve and a threaded rod connected in a threaded manner. The lower end of the threaded rod is provided with a tightening member for pressing against the puncture point. The pneumatic pressing unit includes a shell, an inflation chamber and an inflation assembly are provided in the shell, an air membrane is provided on the lower side of the inflation chamber, and the inflation assembly is used to inflate the inflation chamber. The air membrane bulges under the action of air pressure and is used to press the position around the puncture point. A pressing block is provided at the center of the lower side of the air film. The lower side of the pressing piece and the upper side of the pressing block match in shape. The pressing piece presses against the pressing block to press against the puncture point. A sliding cavity is vertically provided in the threaded rod, a sliding rod is provided on the upper side of the pressing block, the upper end of the sliding rod passes through the air film and the fastening piece and is inserted into the sliding cavity, the sliding rod and the sliding cavity are slidably connected, and the bottom of the sliding rod and the air film are sealed.

2. The medical hemostatic compressor according to claim 1, characterized in that: A limiting portion is provided at the upper end of the slide bar, which is used to limit the slide bar from sliding out of the slide groove.

3. The medical hemostatic compressor according to claim 1, characterized in that: The center position of the upper side of the pressing block is connected to the sliding rod, and the remaining positions on the upper side of the pressing block are bonded to the lower surface of the air film.

4. The medical hemostatic compressor according to claim 1, characterized in that: The lower side of the pressing piece and the upper side of the pressing block are both arc-shaped.

5. The medical hemostatic compressor according to claim 1, characterized in that: An air inlet cavity is also provided in the shell, which is connected to the inflation cavity. The inflation component includes a sealing plate. An elastic member is provided between the upper side of the sealing plate and the air inlet cavity. The sealing plate is used to press the gas in the air inlet cavity into the inflation cavity.

6. The medical hemostatic compressor according to claim 5, characterized in that: The threaded rod includes a base section and an engaging section from top to bottom, and the base section is threadedly connected to the sleeve; the inflation component also includes a first gear, a transmission shaft, a second gear and a vertical rack, the engaging section is engaged with the first gear, and the two ends of the rotating shaft are respectively connected to the center of the first gear and the second gear, the radius of the second gear is larger than the first gear, the second gear is engaged with the vertical rack, the upper end of the vertical rack is connected to the sealing plate, and the lower end of the vertical rack is inserted into the bottom side of the air intake chamber and is slidably connected to the bottom side of the air intake chamber.

7. The medical hemostatic compressor according to claim 4, characterized in that: A one-way valve and a pressure valve are provided on the side wall of the air intake chamber. The one-way valve is used to inflate the air intake chamber from the outside, and the pressure valve is used to release excess pressure in the pressure chamber.

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