CN113243938B - Plunger valve type filtering medical suction nozzle head - Google Patents
Plunger valve type filtering medical suction nozzle head Download PDFInfo
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- CN113243938B CN113243938B CN202110524696.8A CN202110524696A CN113243938B CN 113243938 B CN113243938 B CN 113243938B CN 202110524696 A CN202110524696 A CN 202110524696A CN 113243938 B CN113243938 B CN 113243938B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/0045—Devices for taking samples of body liquids
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B2010/009—Various features of diagnostic instruments
Abstract
The invention discloses a plunger valve type filtering medical suction nozzle head, which comprises a suction nozzle head body and a suction nozzle head, wherein one end of the suction nozzle head body is provided with a connecting port, the outside of the connecting port is connected with a power acquisition device, the plunger valve type filtering medical suction nozzle head is characterized in that the other end of the suction nozzle head body is connected with a communicating pipe, the suction nozzle head is inserted into a port of the communicating pipe, the inside of the suction nozzle head body is provided with a containing chamber, the containing chamber is communicated with the communicating pipe, the containing chamber is provided with a plurality of circulation holes, the inside of the containing chamber is provided with a filtering air floating block, the inner wall of the suction nozzle head body is provided with a convex ring, the convex ring is provided with a filtering layer, the side wall of the suction nozzle head body is provided with at least one valve seat, the valve seat is positioned between the convex ring and the containing chamber, and a plunger regulating valve is arranged in the valve seat.
Description
Technical Field
The invention relates to the technical field of medical acquisition equipment, in particular to a plunger valve type filtering medical suction nozzle head.
Background
The suction nozzle head in the prior art adopts a straight cavity design, namely, the collecting head part and the collecting body part adopt a through connection mode, the suction nozzle head of the type can easily suck collected samples into a collecting power device directly in the using process, for example, a common collecting device with a pump providing power, a collecting device with a piston cylinder providing power and a collecting device with an elastic air bag providing power.
In addition, the suction nozzle head in the prior art needs the adsorption force of different dynamics in the use, and the current collection power device can not realize the regulation of adsorption force or gather the adsorption force that power device produced and be unstable inadequately, often appears that the suction is too big to be adsorbed on the skin, or the suction undersize gathers the phenomenon clean inadequately.
The suction nozzle head in the existing market realizes the collection of different functions, generally needs to be replaced by the whole suction nozzle head, and the suction nozzle head collects the same sample and needs to be replaced by the whole suction nozzle head, so that the loss is additionally increased for the suction nozzle head.
Disclosure of Invention
The invention provides a medical suction nozzle head with plunger valve type filtration, aiming at the problems existing in the prior suction nozzle head in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme: a plunger valve type filtering medical suction nozzle comprises a suction nozzle body and a suction nozzle head, wherein a connector is arranged at one end of the suction nozzle body, the connector is externally connected with a power acquisition device, the medical suction nozzle head is characterized in that a communicating pipe is connected at the other end of the suction nozzle body, the suction nozzle head is inserted into a port of the communicating pipe, a cavity is arranged inside the suction nozzle body and is communicated with the communicating pipe, a plurality of circulation holes are arranged on the cavity, a filtering air floating block is arranged inside the cavity, a convex ring is arranged on the inner wall of the suction nozzle body and is positioned between the connector and the cavity, a filtering layer is arranged on the convex ring, at least one valve seat is arranged on the side wall of the suction nozzle body and is positioned between the convex ring and the cavity, a plunger regulating valve is arranged in the valve seat, plunger governing valve includes well cavity shape adjusting bolt, plunger valve pipe, elastic component, the plunger valve pipe sets up in the disk seat, be provided with a plurality of pressure release holes on the lateral wall of plunger valve pipe, be located the inside internal thread that is provided with of this external plunger valve pipe one end of suction nozzle head, be provided with the external screw thread bolt post corresponding with the internal thread on the well cavity shape adjusting bolt, well cavity shape adjusting bolt's end is provided with the air vent, the elastic component sets up on the plunger valve pipe, the elastic component is located between well cavity shape adjusting bolt and the disk seat.
Further, a sealing cushion layer is arranged on the inner wall of the port of the communicating pipe and used for enhancing the air tightness between the suction nozzle head and the communicating pipe.
Furthermore, the suction nozzle head is an oblique-section suction nozzle head, the oblique-section suction nozzle head comprises a first connecting pipe and an oblique-section needle head, the oblique-section needle head is arranged at one port of the first connecting pipe, and the other port of the first connecting pipe is inserted into the port of the communicating pipe.
Furthermore, the suction nozzle head is a wide-mouth cover suction nozzle head, the wide-mouth cover suction nozzle head comprises a second connecting pipe and a wide-mouth cover body, the wide-mouth cover body is arranged on one port of the second connecting pipe, and the other port of the second connecting pipe is inserted into the port of the communicating pipe.
Furthermore, a plurality of ventilation holes are arranged on the wide-mouth cover body and used for enhancing the air circulation inside and outside the wide-mouth cover suction nozzle.
Furthermore, the suction nozzle head is a tongue depressor suction nozzle head, the tongue depressor suction nozzle head comprises a third connecting pipe and a tongue depressor, the middle of one port of the third connecting pipe is provided with the tongue depressor, the upper surface and the lower surface of the tongue depressor are respectively provided with absorbent cotton blocks, and the other port of the third connecting pipe is inserted into the port of the communicating pipe.
Further, the elastic piece is an elastic sleeve made of flexible materials.
Further, the elastic element is a spring element.
Further, the filtering air floating block is made of a porous material with air permeability and is used for adjusting the collection flow rate and filtering fine particles.
Furthermore, the filter layer is made of melt-blown cloth and used for preventing samples collected by the suction nozzle head from polluting the collecting power device.
Compared with the prior art, the invention has the following advantages: 1. according to the invention, the suction nozzle body is provided with the containing cavity, the filtering air floating block and the filtering layer on the convex ring, so that the collected sample is separated in the suction nozzle body, and the collected sample is effectively prevented from polluting the collecting power device; 2. according to the invention, the filter air floating block is arranged in the containing cavity, and the size of the circulation hole is adjusted by pushing the filter air floating block to move rapidly in the containing cavity through the adsorption air flow, so that the problem of suction flow velocity during suction nozzle head collection is solved; 3. according to the invention, the plunger regulating valve and the rotary hollow regulating bolt are arranged to regulate the adsorption force of the suction nozzle head, so that the problem that the adsorption force of the power collecting device is not suitable to regulate is effectively solved; 4. the invention effectively solves the problem of waste of the suction nozzle head caused by the integral replacement of the suction nozzle head by adopting the separated design of the inclined-section suction nozzle head, the wide-mouth cover suction nozzle head, the tongue depressor suction nozzle head and the communicating pipe.
Drawings
The invention is further described below with reference to the accompanying drawings:
fig. 1 is a schematic view of the connection between a nozzle head body and a plunger regulating valve according to all embodiments of the present invention;
fig. 2 is a perspective view of a nozzle head body according to all embodiments of the present invention;
FIG. 3 is a schematic structural view of a nozzle body and a plunger regulating valve according to all embodiments of the present invention;
FIG. 4 is a schematic view showing the operation direction of the filter air floating block and the plunger regulating valve in the nozzle head body according to all the embodiments of the present invention;
FIG. 5 is a schematic structural diagram of a plunger regulator valve using an elastic sleeve according to one to three embodiments of the present invention;
fig. 6 is a schematic structural view of a plunger regulating valve using a spring member according to fourth to fifth embodiments of the present invention;
FIG. 7 is a schematic diagram of the connection of embodiments one and four of the present invention;
FIG. 8 is a schematic connection diagram of the second and fifth embodiments of the present invention;
FIG. 9 is a schematic connection diagram of third and sixth embodiments of the present invention;
FIG. 10 is a perspective view of a first and a fourth chamfer suction nozzle head according to an embodiment of the present invention;
FIG. 11 is a schematic perspective view of a second and fifth example wide-mouth hood nozzle tip in accordance with embodiments of the present invention;
fig. 12 is a perspective view of the nozzle tips of the third and sixth tongue depressors according to the embodiment of the present invention.
In the figure: the suction nozzle head comprises a suction nozzle head body 1, a communicating pipe 2, a sealing cushion layer 201, a valve seat 101, a connecting port 102, a convex ring 103, a containing chamber 104, a flow hole 104a, a plunger regulating valve 3, a hollow regulating bolt 301, a vent hole 301a, a plunger valve pipe 302, a pressure release hole 302a, an elastic element 303, an elastic sleeve 303a, a spring element 303b, a filtering air floating block 4, a filtering layer 5, a diagonal suction nozzle head 6, a first connecting pipe 601, a diagonal needle 602, a wide-mouth cover suction nozzle head 7, a second connecting pipe 701, a wide-mouth cover body 702, an air exchange hole 703, a tongue depressor suction nozzle head 8, a third connecting pipe 801, a tongue depressor 802 and a degreasing cotton block 803.
Detailed Description
In order to further illustrate the technical solution of the present invention, several different embodiments of the present invention will be further explained or illustrated with reference to the drawings.
Example one
As shown in fig. 1 to 5, 7, and 10, a plunger valve type filtering medical suction nozzle comprises a suction nozzle body 1 and an oblique-section suction nozzle head 6, wherein one end of the suction nozzle body 1 is provided with a connector 102, the connector 102 is externally connected with a power collecting device, the other end of the suction nozzle body 1 is connected with a communicating pipe 2, the inner wall of the port of the communicating pipe 2 is provided with a sealing cushion 201 for enhancing the air tightness between the suction nozzle head and the communicating pipe 2, the oblique-section suction nozzle head 6 comprises a first connecting pipe 601 and an oblique-section needle 602, the oblique-section needle 602 is arranged on one port of the first connecting pipe 601, and the other port of the first connecting pipe 601 is inserted into the port of the communicating pipe 2. The inside of the suction nozzle head body 1 is provided with a containing chamber 104, the containing chamber 104 is communicated with the communicating pipe 2, the containing chamber 104 is provided with a plurality of through holes 104a, the inside of the containing chamber 104 is provided with a filtering air floating block 4, and the filtering air floating block 4 is made of an air-permeable porous material and is used for adjusting the collecting flow rate and filtering fine particles. The inner wall of the nozzle head body 1 is provided with a convex ring 103, the convex ring 103 is located between the connecting port 102 and the containing cavity 104, the convex ring 103 is provided with a filter layer 5, and the filter layer 5 is made of melt-blown fabric and used for preventing a sample collected by the nozzle head from polluting a collecting power device. At least one valve seat 101 is arranged on the side wall of the nozzle head body 1, the valve seat 101 is positioned between the convex ring 103 and the containing chamber 104, a plunger regulating valve 3 is arranged in the valve seat 101, the plunger regulating valve 3 comprises a hollow regulating bolt 301, a plunger valve pipe 302 and an elastic piece 303, the elastic member 303 is an elastic sleeve 303a made of a flexible material, the plunger valve tube 302 is disposed in the valve seat 101, a plurality of pressure relief holes 302a are arranged on the side wall of the plunger valve tube 302, internal threads are arranged inside one end of the plunger valve tube 302 positioned outside the suction nozzle head body 1, the hollow adjusting bolt 301 is provided with an external thread bolt column corresponding to the internal thread, the end of the hollow adjusting bolt 301 is provided with a vent hole 301a, the elastic sleeve 303a is arranged on the plunger valve tube 302, the elastic sleeve 303a is located between the hollow adjusting bolt 301 and the valve seat 101.
The suction nozzle head composed of the suction nozzle head body 1 and the oblique-section suction nozzle head 6 in the embodiment is applied to the technical field of treating pus or effusion in the pustules and the body parts on the skin.
Example two
As shown in fig. 1 to 5, 8, and 11, a plunger valve type filtering medical suction nozzle comprises a suction nozzle body 1 and a wide mouth mask suction nozzle 7, wherein one end of the suction nozzle body 1 is provided with a connector 102, the connector 102 is externally connected with a power collecting device, the other end of the suction nozzle body 1 is connected with a communicating pipe 2, the inner wall of the port of the communicating pipe 2 is provided with a sealing cushion 201 for enhancing the air tightness between the suction nozzle and the communicating pipe 2, the wide mouth mask suction nozzle 7 comprises a second connecting pipe 701 and a wide mouth mask body 702, one port of the second connecting pipe 701 is provided with the wide mouth mask body 702, the other port of the second connecting pipe 701 is inserted into the port of the communicating pipe 2, and the wide mouth mask body 702 is provided with a plurality of air exchanging holes 703 for enhancing the air circulation inside and outside the wide mouth mask suction nozzle 7. The inside of the suction nozzle head body 1 is provided with a containing chamber 104, the containing chamber 104 is communicated with the communicating pipe 2, the containing chamber 104 is provided with a plurality of through holes 104a, the inside of the containing chamber 104 is provided with a filtering air floating block 4, and the filtering air floating block 4 is made of an air-permeable porous material and is used for adjusting the collecting flow rate and filtering fine particles. The inner wall of the nozzle head body 1 is provided with a convex ring 103, the convex ring 103 is located between the connecting port 102 and the containing cavity 104, the convex ring 103 is provided with a filter layer 5, and the filter layer 5 is made of melt-blown fabric and used for preventing a sample collected by the nozzle head from polluting a collecting power device. At least one valve seat 101 is arranged on the side wall of the nozzle head body 1, the valve seat 101 is positioned between the convex ring 103 and the containing chamber 104, a plunger regulating valve 3 is arranged in the valve seat 101, the plunger regulating valve 3 comprises a hollow regulating bolt 301, a plunger valve pipe 302 and an elastic piece 303, the elastic member 303 is an elastic sleeve 303a made of a flexible material, the plunger valve tube 302 is disposed in the valve seat 101, a plurality of pressure relief holes 302a are arranged on the side wall of the plunger valve tube 302, internal threads are arranged inside one end of the plunger valve tube 302 positioned outside the suction nozzle head body 1, the hollow adjusting bolt 301 is provided with an external thread bolt column corresponding to the internal thread, the end of the hollow adjusting bolt 301 is provided with a vent hole 301a, the elastic sleeve 303a is arranged on the plunger valve tube 302, the elastic sleeve 303a is located between the hollow adjusting bolt 301 and the valve seat 101.
The suction nozzle head composed of the suction nozzle head body 1 and the wide-mouth cover suction nozzle head 7 in the embodiment is applied to the technical field of collecting and processing human tissue excrement separated from ears, nostrils and skin.
EXAMPLE III
As shown in fig. 1 to 5, 9, and 12, a plunger valve type filtering medical suction nozzle comprises a suction nozzle body 1 and a tongue depressor suction nozzle 8, wherein one end of the suction nozzle body 1 is provided with a connector 102, the connector 102 is externally connected with a power collecting device, the other end of the suction nozzle body 1 is connected with a communicating pipe 2, the inner wall of the port of the communicating pipe 2 is provided with a sealing cushion 201 for enhancing the air tightness between the suction nozzle and the communicating pipe 2, the suction nozzle 8 comprises a third connecting pipe 801 and a tongue depressor 802, the middle of one port of the third connecting pipe 801 is provided with the tongue depressor 802, the upper and lower surfaces of the tongue depressor 802 are respectively provided with a piece of absorbent cotton 803, and the other port of the third connecting pipe 801 is inserted into the port of the communicating pipe 2. The inside of the suction nozzle head body 1 is provided with a containing chamber 104, the containing chamber 104 is communicated with the communicating pipe 2, the containing chamber 104 is provided with a plurality of through holes 104a, the inside of the containing chamber 104 is provided with a filtering air floating block 4, and the filtering air floating block 4 is made of an air-permeable porous material and is used for adjusting the collecting flow rate and filtering fine particles. The inner wall of the nozzle head body 1 is provided with a convex ring 103, the convex ring 103 is located between the connecting port 102 and the containing cavity 104, the convex ring 103 is provided with a filter layer 5, and the filter layer 5 is made of melt-blown fabric and used for preventing a sample collected by the nozzle head from polluting a collecting power device. At least one valve seat 101 is arranged on the side wall of the nozzle head body 1, the valve seat 101 is positioned between the convex ring 103 and the containing chamber 104, a plunger regulating valve 3 is arranged in the valve seat 101, the plunger regulating valve 3 comprises a hollow regulating bolt 301, a plunger valve pipe 302 and an elastic piece 303, the elastic member 303 is an elastic sleeve 303a made of a flexible material, the plunger valve tube 302 is disposed in the valve seat 101, a plurality of pressure relief holes 302a are arranged on the side wall of the plunger valve pipe 302, internal threads are arranged in one end of the plunger valve pipe 302 outside the nozzle head body 1, the hollow adjusting bolt 301 is provided with an external thread bolt column corresponding to the internal thread, the end of the hollow adjusting bolt 301 is provided with a vent hole 301a, the elastic sleeve 303a is arranged on the plunger valve tube 302, the elastic sleeve 303a is located between the hollow adjusting bolt 301 and the valve seat 101.
The suction nozzle head composed of the suction nozzle head body 1 and the tongue depressor suction nozzle head 8 in the embodiment is applied to the technical field of collecting samples of pathogenic bacteria in the oral cavity or the anus.
Example four
As shown in fig. 1 to 4, 6, 7, and 10, a plunger valve type filtering medical suction nozzle comprises a suction nozzle body 1 and a diagonal suction nozzle head 6, wherein one end of the suction nozzle body 1 is provided with a connector 102, the connector 102 is externally connected with a power collecting device, the other end of the suction nozzle body 1 is connected with a communicating pipe 2, the inner wall of the port of the communicating pipe 2 is provided with a sealing cushion 201 for enhancing the air tightness between the suction nozzle head and the communicating pipe 2, the diagonal suction nozzle head 6 comprises a first connecting pipe 601 and a diagonal needle 602, the diagonal needle 602 is arranged at one port of the first connecting pipe 601, and the other port of the first connecting pipe 601 is inserted into the port of the communicating pipe 2. The inside of the suction nozzle head body 1 is provided with a containing chamber 104, the containing chamber 104 is communicated with the communicating pipe 2, the containing chamber 104 is provided with a plurality of through holes 104a, the inside of the containing chamber 104 is provided with a filtering air floating block 4, and the filtering air floating block 4 is made of an air-permeable porous material and is used for adjusting the collecting flow rate and filtering fine particles. The inner wall of the nozzle head body 1 is provided with a convex ring 103, the convex ring 103 is located between the connecting port 102 and the containing cavity 104, the convex ring 103 is provided with a filter layer 5, and the filter layer 5 is made of melt-blown fabric and used for preventing a sample collected by the nozzle head from polluting a collecting power device. At least one valve seat 101 is arranged on the side wall of the nozzle head body 1, the valve seat 101 is located between the convex ring 103 and the containing cavity 104, a plunger regulating valve 3 is arranged in the valve seat 101, the plunger regulating valve 3 comprises a hollow regulating bolt 301, a plunger valve pipe 302 and an elastic part 303, the elastic part 303 is a spring part 303b, the plunger valve pipe 302 is arranged in the valve seat 101, a plurality of pressure releasing holes 302a are formed in the side wall of the plunger valve pipe 302, an internal thread is arranged inside one end of the plunger valve pipe 302 outside the nozzle head body 1, an external thread bolt column corresponding to the internal thread is arranged on the hollow regulating bolt 301, a vent hole 301a is formed in the end head of the hollow regulating bolt 301, the spring part 303b is arranged on the plunger valve pipe 302, and the spring part 303b is located between the hollow regulating bolt 301 and the valve seat 101.
The suction nozzle head composed of the suction nozzle head body 1 and the oblique-section suction nozzle head 6 in the embodiment is applied to the technical field of treating pus or effusion in the pustules and the body parts on the skin.
EXAMPLE five
As shown in fig. 1 to 4, 6, 8, and 11, a plunger valve type filtering medical suction nozzle comprises a suction nozzle body 1 and a wide-mouth mask suction nozzle 7, wherein one end of the suction nozzle body 1 is provided with a connector 102, the connector 102 is externally connected with a power acquisition device, the other end of the suction nozzle body 1 is connected with a communication pipe 2, a sealing cushion 201 is arranged on the inner wall of the port of the communication pipe 2 and used for enhancing the air tightness between the suction nozzle and the communication pipe 2, the wide-mouth mask suction nozzle 7 comprises a second connecting pipe 701 and a wide-mouth mask body 702, one port of the second connecting pipe 701 is provided with the wide-mouth mask body 702, the other port of the second connecting pipe 701 is inserted into the port of the communication pipe 2, and the wide-mouth mask body 702 is provided with a plurality of air exchange holes 703 for enhancing the air circulation inside and outside the wide-mouth mask suction nozzle 7. The inside of the suction nozzle head body 1 is provided with a containing chamber 104, the containing chamber 104 is communicated with the communicating pipe 2, the containing chamber 104 is provided with a plurality of through holes 104a, the inside of the containing chamber 104 is provided with a filtering air floating block 4, and the filtering air floating block 4 is made of an air-permeable porous material and is used for adjusting the collecting flow rate and filtering fine particles. The inner wall of the nozzle head body 1 is provided with a convex ring 103, the convex ring 103 is located between the connecting port 102 and the containing cavity 104, the convex ring 103 is provided with a filter layer 5, and the filter layer 5 is made of melt-blown fabric and used for preventing a sample collected by the nozzle head from polluting a collecting power device. At least one valve seat 101 is arranged on the side wall of the nozzle head body 1, the valve seat 101 is located between the convex ring 103 and the containing cavity 104, a plunger regulating valve 3 is arranged in the valve seat 101, the plunger regulating valve 3 comprises a hollow regulating bolt 301, a plunger valve pipe 302 and an elastic part 303, the elastic part 303 is a spring part 303b, the plunger valve pipe 302 is arranged in the valve seat 101, a plurality of pressure releasing holes 302a are formed in the side wall of the plunger valve pipe 302, an internal thread is arranged inside one end of the plunger valve pipe 302 outside the nozzle head body 1, an external thread bolt column corresponding to the internal thread is arranged on the hollow regulating bolt 301, a vent hole 301a is formed in the end head of the hollow regulating bolt 301, the spring part 303b is arranged on the plunger valve pipe 302, and the spring part 303b is located between the hollow regulating bolt 301 and the valve seat 101.
The suction nozzle head composed of the suction nozzle head body 1 and the wide-mouth cover suction nozzle head 7 in the embodiment is applied to the technical field of collecting and processing human tissue excrement separated from ears, nostrils and skin.
EXAMPLE six
As shown in fig. 1 to 4, 6, 9, and 12, a plunger valve type filtering medical suction nozzle head includes a suction nozzle head body 1 and a tongue depressor suction nozzle head 8, one end of the suction nozzle head body 1 is provided with a connection port 102, the connection port 102 is externally connected with a power acquisition device, the other end of the suction nozzle head body 1 is connected with a communication pipe 2, the inner wall of the port of the communication pipe 2 is provided with a seal cushion 201 for enhancing the air tightness between the suction nozzle head and the communication pipe 2, the tongue depressor suction nozzle head 8 includes a third connection pipe 801 and a tongue depressor 802, the middle of one port of the third connection pipe 801 is provided with a tongue depressor 802, the upper and lower surfaces of the tongue depressor 802 are respectively provided with a piece of absorbent cotton 803, and the other port of the third connection pipe 801 is inserted into the port of the communication pipe 2. The inside of the suction nozzle head body 1 is provided with a containing chamber 104, the containing chamber 104 is communicated with the communicating pipe 2, the containing chamber 104 is provided with a plurality of through holes 104a, the inside of the containing chamber 104 is provided with a filtering air floating block 4, and the filtering air floating block 4 is made of an air-permeable porous material and is used for adjusting the collecting flow rate and filtering fine particles. The inner wall of the nozzle head body 1 is provided with a convex ring 103, the convex ring 103 is located between the connecting port 102 and the containing cavity 104, the convex ring 103 is provided with a filter layer 5, and the filter layer 5 is made of melt-blown fabric and used for preventing a sample collected by the nozzle head from polluting a collecting power device. At least one valve seat 101 is arranged on the side wall of the nozzle head body 1, the valve seat 101 is located between the convex ring 103 and the containing cavity 104, a plunger regulating valve 3 is arranged in the valve seat 101, the plunger regulating valve 3 comprises a hollow regulating bolt 301, a plunger valve pipe 302 and an elastic part 303, the elastic part 303 is a spring part 303b, the plunger valve pipe 302 is arranged in the valve seat 101, a plurality of pressure releasing holes 302a are formed in the side wall of the plunger valve pipe 302, an internal thread is arranged inside one end of the plunger valve pipe 302 outside the nozzle head body 1, an external thread bolt column corresponding to the internal thread is arranged on the hollow regulating bolt 301, a vent hole 301a is formed in the end head of the hollow regulating bolt 301, the spring part 303b is arranged on the plunger valve pipe 302, and the spring part 303b is located between the hollow regulating bolt 301 and the valve seat 101.
The suction nozzle head composed of the suction nozzle head body 1 and the tongue depressor suction nozzle head 8 in the embodiment is applied to the technical field of collecting samples of pathogenic bacteria in the oral cavity or the anus.
In all the above embodiments, the connection port 102 is externally connected with a power collecting device, and the power collecting device includes any one of a pump-powered device, an air bag-powered device and a piston cylinder-powered device.
In all the above embodiments, the communicating tube 2 is connected to the soft catheter, so as to collect the effusion inside the human body.
The working principle is as follows: the invention connects the connecting port 102 with the part of the collecting power device which generates the adsorption force, the collecting power device is operated to generate the adsorption force, the oblique section suction nozzle head 6, the wide mouth cover suction nozzle head 7 and the tongue depressor suction nozzle head 8 on the suction nozzle head body 1 are placed at the corresponding processing parts, the collected sample enters the containing chamber 104 under the action of the adsorption force of the collecting power device, the collected sample is filtered by the air filtering floating block 4 to remove fine particles in the sample, the rest collected liquid or finer particles enter the suction nozzle head body 1 through the circulation hole 104a, the collected sample entering the chamber 104 continuously flows to the direction of the collection power device under the action of the adsorption force of the collection power device, and after passing through the filter layer 5 made of melt-blown cloth, the air in the collected sample is separated out, the air enters the collecting power device, and the collected sample is retained in the suction nozzle body 1.
Meanwhile, the air floating block 4 moves back and forth and vibrates in the cavity 104 under the action of adsorption force, so that the sizes of the circulation holes 104a on the cavity 104 are different due to different positions of the air floating block 4, the flow rate of the collected sample is inconsistent due to the sizes of the circulation holes 104a, when the adsorption force in the nozzle head body 1 is too large and exceeds the balance point of the elastic piece 303, the plunger valve pipe 302 can cause the plunger valve pipe 302 to move towards the interior of the nozzle head body 1 due to the pressure difference between the interior and the exterior of the nozzle head body 1, so that the pressure release hole 302a is opened, and a pressure release vent channel formed by the pressure release hole 302a in the side wall of the plunger valve pipe 302 and the vent hole 301a of the hollow adjusting bolt 301 is communicated with the interior and the exterior of the nozzle head body 1, so as to achieve the purpose of adjusting the adsorption force in the nozzle head body 1; on the contrary, the plunger valve tube 302 makes the pressure release hole 302a on the sidewall of the plunger valve tube 302 located in the valve seat 101 under the action of the elastic member 303, and closes the pressure release air passage.
According to the invention, by rotating the position of the hollow adjusting bolt 301 relative to the plunger valve tube 302, the elastic member 303 is subjected to different extrusion forces, so that different balance points of the elastic member 303 are adjusted.
In order to increase the collection effect of human body tissue excrement separated from ears, nostrils and skin and form the circulation of air flow inside and outside the wide-mouth mask body 702, a plurality of air exchange holes 703 are arranged on the wide-mouth mask body 702, so that the purpose of adsorption without damaging the skin in the collection process is achieved.
The convex ring 103 on the inner wall of the nozzle body 1 is used for setting the filter layer 5, and the main purpose is that the collected sample in the containing chamber 104 flows back to the nozzle body 1 through the interception of the convex ring 103 when the collected sample moves to the collecting power device along the nozzle body 1 under the action of the adsorption force of the collecting power device, wherein part of fine particles or liquid in the collected sample flows back to the collecting power device, and mixed gas enters the collecting power device through the filter layer 5, so that the gas-liquid separation speed is increased.
While there have been shown and described what are at present considered to be the essential features and advantages of the invention, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A plunger valve type filtering medical suction nozzle comprises a suction nozzle body (1) and a suction nozzle head, wherein one end of the suction nozzle body (1) is provided with a connecting port (102), the connecting port (102) is externally connected with a power acquisition device, and the medical suction nozzle is characterized in that the other end of the suction nozzle body (1) is connected with a communicating pipe (2), the suction nozzle head is inserted into a port of the communicating pipe (2), a containing chamber (104) is arranged inside the suction nozzle body (1), the containing chamber (104) is communicated with the communicating pipe (2), a plurality of circulation holes (104a) are arranged on the containing chamber (104), a filtering air floating block (4) is arranged inside the containing chamber (104), a convex ring (103) is arranged on the inner wall of the suction nozzle body (1), and the convex ring (103) is positioned between the connecting port (102) and the containing chamber (104), the filter layer (5) is arranged on the convex ring (103), at least one valve seat (101) is arranged on the side wall of the nozzle head body (1), the valve seat (101) is located between the convex ring (103) and the containing chamber (104), a plunger regulating valve (3) is arranged in the valve seat (101), the plunger regulating valve (3) comprises a hollow regulating bolt (301), a plunger valve pipe (302) and an elastic piece (303), the plunger valve pipe (302) is arranged in the valve seat (101), a plurality of pressure releasing holes (302a) are arranged on the side wall of the plunger valve pipe (302), an internal thread is arranged inside one end of the plunger valve pipe (302) outside the nozzle head body (1), an external thread bolt column corresponding to the internal thread is arranged on the hollow regulating bolt (301), and a vent hole (301a) is arranged at the end of the hollow regulating bolt (301), the elastic piece (303) is arranged on the plunger valve tube (302), and the elastic piece (303) is located between the hollow adjusting bolt (301) and the valve seat (101).
2. The medical suction nozzle head with the plunger valve type filtration as claimed in claim 1, wherein a sealing cushion layer (201) is arranged on the inner wall of the port of the communicating pipe (2) for enhancing the air tightness between the suction nozzle head and the communicating pipe (2).
3. The medical nozzle head for plunger valve type filtration according to claim 1 or 2, wherein the nozzle head is a beveled nozzle head (6), the beveled nozzle head (6) comprises a first connecting pipe (601) and a beveled needle (602), the beveled needle (602) is arranged at one port of the first connecting pipe (601), and the other port of the first connecting pipe (601) is inserted into the port of the communicating pipe (2).
4. The medical suction nozzle head with the plunger valve type filter according to claim 1 or 2, characterized in that the suction nozzle head is a wide-mouth cover suction nozzle head (7), the wide-mouth cover suction nozzle head (7) comprises a second connecting pipe (701) and a wide-mouth cover body (702), the wide-mouth cover body (702) is arranged on one port of the second connecting pipe (701), and the other port of the second connecting pipe (701) is inserted into the port of the communicating pipe (2).
5. The plunger valve type filtering medical nozzle head as claimed in claim 4, wherein the wide-mouth shield body (702) is provided with a plurality of ventilation holes (703) for enhancing air circulation inside and outside the wide-mouth shield nozzle head (7).
6. The medical nozzle head for plunger valve type filtration according to claim 1 or 2, wherein the nozzle head is a tongue depressor nozzle head (8), the tongue depressor nozzle head (8) comprises a third connecting pipe (801) and a tongue depressor (802), the tongue depressor (802) is arranged in the middle of one port of the third connecting pipe (801), the upper surface and the lower surface of the tongue depressor (802) are respectively provided with a piece of absorbent cotton (803), and the other port of the third connecting pipe (801) is inserted into the port of the communicating pipe (2).
7. A plunger valve style filtered medical nozzle tip as claimed in claim 1, wherein the resilient member (303) is a resilient sleeve (303a) of flexible material.
8. A plunger valve type filtering medical nozzle tip as claimed in claim 1, wherein the resilient member (303) is a spring member (303 b).
9. A plunger valve type filtered medical nozzle head as claimed in claim 1, wherein the filtering air floating block (4) is made of air permeable porous material for adjusting the collecting flow rate and filtering fine particles.
10. A plunger valve filter medical nozzle according to claim 1, wherein the filter layer (5) is made of meltblown material for preventing the sample collected by the nozzle from contaminating the collection power unit.
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