CN201768265U

CN201768265U - Spherical type medicine feeder

Info

Publication number: CN201768265U
Application number: CN2010202523326U
Authority: CN
Inventors: 潘秀凤
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-08
Filing date: 2010-07-08
Publication date: 2011-03-23
Anticipated expiration: 2020-07-08

Abstract

The utility model discloses a spherical type medicine feeder, which comprises a base, a medicine feeding pipe and an elastic valve. The base and the medicine feeding pipe are sleeved with each other, the elastic valve is arranged in the base and the medicine feeding pipe, a flow guiding groove and an inner liquid medicine flow channel which are communicated with each other are arranged on the base, liquid medicine filled into the medicine feeder is led to be injected into a body of a patient from the inner liquid medicine flow channel, and a ventilation channel is additionally arranged on the base so that air inside the medicine feeder can be ventilated from the ventilation channel to the outside of the medicine feeder. Accordingly, air can avoid being injected into vessels of the patient, so that the medicine feeder avoids pain of the patient. A gap between the medicine feeding pipe and the elastic valve can be cleaned truly during injection of cleaning agent for cleaning, thereby avoiding residue of the liquid medicine and preventing the danger of secondary infection. In addition, the spherical type medicine feeder has the advantages of less component, simplified assembly steps and low assembly and material costs.

Description

Spherical formula drug feeding device

Technical field

This utility model is about a kind of spherical formula drug feeding device, refers to a kind of for the drug feeding device of exempting from the needle injector liquid medicine injection especially.

Background technology

In medical treatment, carry out the sufferer of multiple injection or blood drawing check for needs, for exempting from the pain of injury that it is subjected to repeatedly pinprick, common employed mode is at the pipeline of a drop bottle or directly installs a drug feeding device on one's body in sufferer, medical personnel nutriment or medicine can be entered in the patient via this drug feeding device injection, reach by this and reduce the pinprick number of times, thereby subtract purpose through the sufferer pain of injury.

The drug feeding device of prior art, as the U.S. the 5th, 782, No. 816 " BI-DIRECTIONAL VALVEAND METHOD OF USING SAME " patent of invention cases, and the U.S. the 7th, 520, shown in No. 489 " FLUID HANDLING DEVICE AND METHOD OF MAKING SAME " patent of invention cases, mainly be that an elastic valve body is set in a chemical feed pipe, this elastic valve body can seal this chemical feed pipe openings at two ends under naturalness, and, also be provided with the baffle ring that to be close to this chemical feed pipe tube wall on this elastic valve body in order to allow this drug feeding device when not using, can have well sealing effectiveness; By this, when one exempts from needle injector and inserts in this chemical feed pipe, can compress and bend this elastic valve body, make between the opening of this elastic valve body and this chemical feed pipe and tube wall and form the space, make this syringe impose malleation, and medicinal liquid is injected in the patient via this drug feeding device to medicinal liquid set in it;

Yet, the shortcoming of the drug feeding device of above-mentioned prior art is, when injection finishes the extraction syringe, the blood of sufferer and medicinal liquid can return in this drug feeding device because of the negative pressure adverse current, again owing to leaving a large amount of spaces between this chemical feed pipe and elastic valve body, so therefore this blood and medicinal liquid will remain in this drug feeding device; Thus, when next injection, not only this blood and medicinal liquid can flow back in the patient because of malleation once more, cause the danger of infection, air in the chemical feed pipe also can cause the improper expansion of blood vessel in the lump because of malleation is entered in the patient by injection, makes sufferer produce pain.

The drug feeding device of another kind of prior art, as the U.S. the 6th, 228, shown in No. 069 " NEEDLELESSACCESS DEVICE " patent of invention case, it includes a belled sleeve pipe and a upper shield mutually, be provided with the spring that a stick harness and is replaced this stick harness between this sleeve pipe and upper shield, make this stick harness optionally seal the opening of this upper shield, being provided with between this sleeve pipe and the upper shield again respectively can be for the runner of medicinal liquid circulation and the runner that can supply the chemical feed pipe inner air flow, and the phase reaches to be avoided air is injected the intravital purpose of sufferer;

Only the drug feeding device of this prior art still has its shortcoming to exist, promptly the elastic slip effect because of this stick harness is that this spring of mat is reached, so in order to assemble the required part of this drug feeding device just nearly more than four, cost height, the complicated problem of number of assembling steps are not only arranged, and the spring of this metal material also can influence the result of nuclear magnetic resonance, NMR, when so if sufferer need be carried out the inspection of nuclear magnetic resonance, NMR, just this drug feeding device must be taken off, refill after examine finishes, so just lost drug feeding device in order to reduce sufferer by the purpose of the number of times of pinprick.

As mentioned above, the drug feeding device of prior art still remains further to be improved part as can be known.

Summary of the invention

Because the shortcoming of aforementioned prior art, this utility model provides a kind of spherical formula drug feeding device, the drug feeding device that uncommon design by this solves prior art has part and causes cost height, number of assembling steps complicated more, the spring of metal material is set and gets rusty easily and influence nuclear magnetic resonance result, and the blood vessel neutralization that air is squeezed into sufferer is difficult to wash the shortcoming that causes medicinal liquid residual.

In order to reach above-mentioned purpose of design, the technological means that this utility model utilized is that a spherical formula drug feeding device is comprised:

One pedestal, it is provided with a ring wall, a base plate and an exhaust passage in a tubular form and thereon, this ring wall is around taking shape on this pedestal, thereby between this ring wall, be formed with a room, the outside wall surface of this ring wall is provided with a guiding gutter, this base plate is positioned at this room bottom, laterally run through on this base plate and be provided with an inner liquid medicine runner, this inner liquid medicine runner is connected with the guiding gutter of this ring wall, this pedestal is run through in this exhaust passage, and, but do not communicate with the inner liquid medicine runner of this base plate with this room and pedestal exterior;

One chemical feed pipe, it in a tubular form and be sheathed on this pedestal top, be tight fit between the tube wall of this chemical feed pipe and the tube wall of this pedestal, this chemical feed pipe top axial projection forms an injection mouth of pipe, this injection mouth of pipe communicates with the room of this pedestal, is equipped with a stopper section near top end on the internal face of this chemical feed pipe;

One elastic valve body, it is to be located among the room and this chemical feed pipe of this pedestal, this elastic valve body is hollow and has a locating ring, form an elastic bending part between the top margin of this locating ring, the top of this elastic bending part projection again forms a valve plug, then be formed with an air chamber between this locating ring, elastic bending part and the valve plug, this locating ring is located on the base plate of this pedestal, this air chamber is connected with the exhaust passage of this pedestal, the top margin of this locating ring is resisted against the stopper section of chemical feed pipe, and this valve plug is stretched in the injection mouth of pipe of this chemical feed pipe.

The base plate of this pedestal can vertically be run through in the exhaust passage of said base.

The outside wall surface of said base can be further around forming a baffle ring, and above-mentioned chemical feed pipe bottom periphery is resisted against the baffle ring of this pedestal, and this base plate, ring wall and baffle ring can laterally be run through in the exhaust passage of said base.

Laterally be equipped with a perforation on the valve plug of above-mentioned elastic valve body.

Plastic on the valve plug of above-mentioned elastic valve body have deep this valve plug top and be the grooving of nick shaped.

The inside of the valve plug of above-mentioned elastic valve body can be hollow and is formed with a groove that communicates with this air chamber.

The base plate of said base can further be provided with an annular groove to a end face that should room, and the base of the locating ring of above-mentioned elastic valve body is located in the annular groove of base plate of this pedestal.

There is a connection tube said base bottom further projection, and this connection tube is connected with the inner liquid medicine runner of this base plate.

To should can further being provided with an internal thread part on the base internal wall face of connection tube, the outside wall surface of the injection mouth of pipe of above-mentioned chemical feed pipe can further be equipped with an external thread part.

The advantage of spherical formula drug feeding device of the present utility model is, by the spring that is not provided with metal material thereon, so member is few, number of assembling steps is simplified, assembling and material cost also can effectively reduce, and for the sufferer that needs carry out the nuclear magnetic resonance, NMR check, also this drug feeding device need not be unloaded; In addition, the design of mat this order medicinal liquid and air shunting, can prevent from air is squeezed in the blood vessel of sufferer on the one hand, avoid sufferer to produce pain, on the other hand when injecting the cleanout fluid cleaning, also can clear up the space between this chemical feed pipe and elastic valve body really, avoid medicinal liquid residual, the danger of prevention superinfection.

Description of drawings

Fig. 1 is a stereo appearance figure of the present utility model;

Fig. 2 is a three-dimensional exploded view of the present utility model;

Fig. 3 is a side cutaway view of the present utility model;

Fig. 4 is the side cutaway view of this utility model in the state of enforcement;

Fig. 5 is the side cutaway view of this utility model in another embodiment;

Fig. 6 is this utility model side cutaway view of an embodiment again;

Fig. 7 be this utility model again an embodiment in the side cutaway view of implementing state;

Fig. 8 is the three-dimensional exploded view of the another embodiment of this utility model;

Fig. 9 is the side cutaway view of the another embodiment of this utility model; And

Figure 10 is the side cutaway view of the another embodiment of this utility model in the state of enforcement.

The specific embodiment

Below cooperate preferred embodiment graphic and of the present utility model, further setting forth this utility model is to reach the technological means that the predetermined design purpose is taked.

Shown in Fig. 1 and 4, one end of spherical formula drug feeding device of the present utility model can with one exempt from needle injector 41 and join, the other end then can join with a tube for transfusion 42, and this tube for transfusion 42 further connects and sets up in the intravital needle tubing of sufferer, by this, medical personnel can by this exempt from needle injector 41 through spherical formula drug feeding device thus to patient's injection medicinal liquid, further referring to shown in Figure 2, this spherical formula drug feeding device comprises to be distinguished in a tubular form and a mutual belled pedestal 10 and a chemical feed pipe 20, and be located at a elastic valve body 30 in this pedestal 10 and the chemical feed pipe 20, wherein:

Further referring to shown in Figure 3, pedestal 10 is provided with a ring wall 11, one base plate 12, one connection tube 13, one internal thread part 14, one baffle ring 15 and an exhaust passage 16, this ring wall 11 is around taking shape on this pedestal 10, thereby be formed with a room 111 in 11 of this ring walls, outside wall surface in this ring wall 11 is provided with a guiding gutter 112 in addition, this base plate 12 is positioned at this room 111 bottoms, 12 pairs of this base plates should room 111 an end face be provided with an annular groove 121, on this base plate 12, laterally run through in addition and be provided with an inner liquid medicine runner 122, this inner liquid medicine runner 122 is connected with the guiding gutter 112 of this ring wall 11, this connection tube 13 is by pedestal 10 bottom projections, and be connected with the inner liquid medicine runner 122 of this base plate 12, this connection tube 13 can further join with aforementioned tube for transfusion 42, this internal thread part 14 is located on should pedestal 10 internal faces of connection tube 13, this internal thread part 14 of mat can join with other pipeline this pedestal 10 with screw-in version, this baffle ring 15 is around the outside wall surface that takes shape in this pedestal 10, this pedestal 10 is run through in this exhaust passage 16, and with this room 111 and pedestal 10 exterior, but do not communicate with the inner liquid medicine runner 122 of this base plate 12, in better embodiment of the present utility model, this aerofluxus channel 16 can vertically run through this base plate 12;

In addition, further referring to shown in Figure 5, this exhaust passage 16 ' also can laterally run through this base plate 12, ring wall 11 and baffle ring 15 makes this room 111 can be via the purpose of this exhaust passage 16,16 ' be connected with pedestal 10 outsides to reach;

Chemical feed pipe 20 is sheathed on this pedestal 10 outsides downwards by these pedestal 10 tops, make these chemical feed pipe 20 bottom peripheries be resisted against the baffle ring 15 of this pedestal 10, it between the tube wall of the tube wall of this chemical feed pipe 20 and this pedestal 10 tight fit, these chemical feed pipe 20 top axial projections form an injection mouth of pipe 21, this injection mouth of pipe 21 communicates with the room 111 of this pedestal 10, the outside wall surface of this injection mouth of pipe 21 is equipped with an external thread part 22, this external thread part 22 of mat can join this chemical feed pipe 20 and the aforementioned needle injector 41 exempted from screw-in version, be equipped with a stopper section 23 near top end in addition on the internal face of this chemical feed pipe 20;

The material of elastic valve body 30 is a silica gel, it is to be located among the room 111 and this chemical feed pipe 20 of this pedestal 10, this elastic valve body 30 is for hollow and have a locating ring 31, form an elastic bending part 32 between the top margin of this locating ring 31, the top of this elastic bending part 32 projection again forms a valve plug 33, and this locating ring 31, then be formed with an air chamber 34 between elastic bending part 32 and the valve plug 33, the base of this locating ring 31 is located in the annular groove 121 of base plate 12 of this pedestal 10, and this air chamber 34 is connected with the exhaust passage 16 of this pedestal 10, the top margin of this locating ring 31 is resisted against the stopper section 23 of chemical feed pipe 20, laterally be equipped with a perforation 331 on this valve plug 33, this perforation 331 can provide the space of 33 1 bent distortion of this valve plug, this valve plug 33 is stretched in the injection mouth of pipe 21 of this chemical feed pipe 20, and then seal this injection mouth of pipe 21, the thickness of aforementioned again elastic bending part 32 is less than the thickness of locating ring 31, makes this elastic bending part 32 can be easy to the bending distortion than locating ring 31 being subjected to the external force effect.

Referring to shown in Figure 3, when this was exempted from needle injector 41 and does not insert the injection mouth of pipe 21 of this chemical feed pipe 20 as yet, the valve plug 33 of this elastic valve body 30 wore and seals this injection mouth of pipe 21;

Further referring to shown in Figure 4, when this being exempted from the injection mouth of pipe 21 of needle injector 41 these chemical feed pipes 20 of insertion, the valve plug 33 of this elastic valve body 30 of meeting pushing and withstanding, make the valve plug 33 and elastic bending part 32 bending distortion of this elastic valve body 30, and make the top margin of the locating ring 31 of this elastic valve body 30 break away from the stopper section 23 of this chemical feed pipe 20;

At this moment, this medicinal liquid of exempting from the needle injector 41 can inject and accumulate between this elastic valve body 30 and chemical feed pipe 20, and flow into these connection tubes 13 with inner liquid medicine runner 122, thereby see through this tube for transfusion 42 and needle tubing injects in the patient via the guiding gutter 112 of this pedestal 10;

In addition, when the elastic bending part 32 of this elastic valve body 30 is subjected to this to exempt from the pushing and withstanding of needle injector 41 and bends distortion, air in the air chamber 34 of this elastic valve body 30 can be by drug feeding device outside, the

exhaust passage

16,16 of this pedestal 10 ' drain into, this elastic valve body 30 is compressed smoothly, allow air and medicinal liquid from the mobile design in various flows road by this, can effectively prevent from air is squeezed in the blood vessel of sufferer, avoid sufferer to produce pain.

In addition referring to shown in Figure 6, embodiment again for this case, wherein form deep this valve plug 33A top on the valve plug 33A of this elastic valve body 30A and be the grooving 332A of nick shaped, when this valve plug 33A was stretched in the injection mouth of pipe 21 of this chemical feed pipe 20, this valve plug 33A was squeezed and seals the grooving 332A that it is nick shaped;

Further referring to shown in Figure 7, when exempting from needle injector 41 and compress the valve plug 33A of this elastic valve body 30A, this valve plug 33A can directly carry out towards both sides from its end, make this grooving 332A form the general space triangular in shape of a section, circulate for medicinal liquid, also can guarantee that this valve plug 33A is when being subjected to this and exempting from needle injector 41 and compress, its grooving 332A is bound to be strutted, guarantee that medicinal liquid can flow through smoothly, again thus, when injecting the cleanout fluid cleaning, also can clear up the space between this grooving 332A really afterwards, avoid medicinal liquid to residue in this place.

Referring to shown in Fig. 8 and 9, be the another embodiment of this case again, wherein the inside of the valve plug 33B of this elastic valve body 30B is that hollow is formed with a groove 333B who communicates with this air chamber 34, and preferably, this groove 333B is flat;

Further referring to shown in Figure 10, when exempting from needle injector 41 and compress the valve plug 33B of this elastic valve body 30B, this groove 333B can provide this valve plug 33B the space of a bent distortion, the groove 333B of this flat then can make this valve plug 33B have specific overbending direction, and because this groove 333B does not run through the ring wall of this valve plug 33B, therefore medicinal liquid can not flow among this groove 333B, does not have medicinal liquid certainly yet and residues in problem among this groove 333B.

Claims

1. spherical formula drug feeding device, it comprises respectively in a tubular form and a belled pedestal and a chemical feed pipe mutually, and is located at the elastic valve body in this pedestal and the chemical feed pipe, it is characterized in that:

Pedestal is provided with a ring wall, a base plate and an exhaust passage, this ring wall is around taking shape on this pedestal, thereby between this ring wall, be formed with a room, the outside wall surface of this ring wall is provided with a guiding gutter, and this base plate is positioned at this room bottom, laterally runs through being provided with an inner liquid medicine runner on this base plate, this inner liquid medicine runner is connected with the guiding gutter of this ring wall, this pedestal is run through in this exhaust passage, and with this room and pedestal exterior, but do not communicate with the inner liquid medicine runner of this base plate;

Chemical feed pipe is sheathed on this pedestal top, be tight fit between the tube wall of this chemical feed pipe and the tube wall of this pedestal, this chemical feed pipe top axial projection forms an injection mouth of pipe, and this injection mouth of pipe communicates with the room of this pedestal, is equipped with a stopper section near top end on the internal face of this chemical feed pipe;

Elastic valve body is located among the room and this chemical feed pipe of this pedestal, this elastic valve body is hollow and has a locating ring, form an elastic bending part between the top margin of this locating ring, the top of this elastic bending part projection again forms a valve plug, then be formed with an air chamber between this locating ring, elastic bending part and the valve plug, this locating ring is located on the base plate of this pedestal, this air chamber is connected with the exhaust passage of this pedestal, the top margin of this locating ring is resisted against the stopper section of chemical feed pipe, and this valve plug is stretched in the injection mouth of pipe of this chemical feed pipe.

2. spherical formula drug feeding device as claimed in claim 1 is characterized in that the exhaust passage of aforementioned pedestal vertically runs through the base plate of this pedestal.

3. spherical formula drug feeding device as claimed in claim 1, the outside wall surface that it is characterized in that aforementioned pedestal is further around forming a baffle ring, aforementioned chemical feed pipe bottom periphery is resisted against the baffle ring of this pedestal, and this base plate, ring wall and baffle ring are laterally run through in the exhaust passage of aforementioned pedestal.

4. as each described spherical formula drug feeding device in the claim 1 to 3, it is characterized in that laterally being equipped with a perforation on the valve plug of aforementioned elastic valve body.

5. as each described spherical formula drug feeding device in the claim 1 to 3, it is characterized in that forming deep this valve plug top on the valve plug of aforementioned elastic valve body and the grooving that is nick shaped.

6. as each described spherical formula drug feeding device in the claim 1 to 3, the inside that it is characterized in that the valve plug of aforementioned elastic valve body is that hollow is formed with a groove that communicates with this air chamber.

7. as each described spherical formula drug feeding device in the claim 1 to 3, the base plate that it is characterized in that aforementioned pedestal further is provided with an annular groove to a end face that should room, and the base of the locating ring of aforementioned elastic valve body is located in the annular groove of base plate of this pedestal.

8. spherical formula drug feeding device as claimed in claim 7 is characterized in that the further projection of aforementioned base bottom has a connection tube, and this connection tube is connected with the inner liquid medicine runner of this base plate.

9. spherical formula drug feeding device as claimed in claim 8 is characterized in that the outside wall surface of the injection mouth of pipe of aforementioned chemical feed pipe further is equipped with an external thread part to should further being provided with an internal thread part on the base internal wall face of connection tube.