JPH0143051Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] (Field of industrial use) A convenient and safe blood sampling device that elastically hits the blood sampling needle cartridge fixed to the front of a simple holder that can be held and operated with one hand. The present invention relates to a simple holder for blood collection in which a notch handle that gives elastic protrusion to a blood collection needle is elastically loaded with a spring and can be freely engaged and detached.

(Prior Art) There is a prior art related to various spring-loaded lancets, and Japanese Patent Application Laid-Open No. 168644/1983 discloses a method in which a second spring is used as a means for retracting the lancet into the housing after puncturing the skin. There are ways to grow hair. The lancet assembly in this case is itself self-deflating and is configured to compress and retract the second spring during outward movement of the lancet, and is intended to be disposable.

In addition, Japanese Patent Application Laid-open No. 59-160441 discloses that a plunger is elastically mounted in a sleeve provided with an annular flange to make it easier to grip by hand, a needle assembly is attached to the tip of the plunger, and a spring return spring is provided to puncture the plunger. This figure shows a configuration in which the tip member is provided as a means for retracting the needle and is easily replaced. Both are used by touching the fingertip, etc., but since the second spring is used as a means of retracting the needle, it is inevitable that the structure will be complicated, so it is recommended to use a simple structure that works safely. A medical device capable of collecting blood from an earlobe using a blood sampling needle cartridge fixed to a holder has not been developed in the past.

(Problems to be Solved by the Invention) In the prior art with the above-mentioned configuration, since both of them are provided with a second spring in addition to the main spring, the configuration of a complicated member with a double structure such as a housing or a sleeve is required. In addition to this problem, since the needle assembly inserted into the plunger and the receptacle for the tip member are separate bodies, the protruding state of the needle tip at the receptacle becomes unstable, which is not the case when using the needle by applying it to the tip of the finger. However, there are problems when collecting blood from the earlobe.

The latter is a simple and convenient blood sampling device, as it requires time and effort to remove the threaded side end member each time the needle is replaced. The aim is to develop an instrument that allows even non-experts to easily and quickly collect blood.

[Structure of the idea]

(Means for Solving Problems) The basic structure of this invention is to insert and lock a blood collection needle cartridge into the side end of a simple holder that can be held with one hand, and to expose the tip of the blood collection needle from the opening at the front end of the holder. A notch handle with a protrusion on the front surface along the center line of the blood collection needle is inserted into the holder, and a guide groove is opened on the side surface and protrudes from the top of the holder, allowing the user to compress and lock a slidably loaded spring. The notch handle is released from the lock by pushing the inner surface of the holding lever, and the notch handle is actuated by elastic force, and its front protrusion hits the center of the frame of the blood collection needle cartridge, causing the blood collection needle to elastically protrude and blood collection. This is a simple holder for blood collection that works. Therefore, the structure and installation of the blood sampling needle cartridge can be improved to solve the problem of the complicated structure due to the second spring shown in the prior art, the problem of separating the needle assembly and the receptacle, and the trouble of replacing the needle. This can be easily and accurately solved.

(Function) This device compresses the loaded spring while retracting the notch handle, which can slide back and forth through the guide groove of the holder with your fingertips, and locks it in the locking step provided on the side wall of the guide groove in the retracted position. , by pushing the presser lever protruding from the top of the holder, the inner surface of the lever releases the locking piece built into the notch handle from the locking step, and the elastic force moves the notch handle forward to release the step provided at the front end of the guide groove. A cartridge made of an elastic material is brought into contact with the center back of the frame of a blood sampling needle cartridge, which is locked in a locking groove provided in contact with the front end of a guide groove by a protrusion provided on the front surface before being stopped by the edge. Due to the elastic protrusion of the frame, the tip of the blood sampling needle protruding from the center can be moved back and forth from the front end surface of the holder to perform blood sampling.

The cartridge has a sagging eave on the front of the frame that can cover both the left and right sides, and the opening in the center protects the blood collection needle so that it can be inserted and removed. In addition to preventing blood from adhering to the protector, it is possible to continue blood collection work while wiping and disinfecting the blood adhering to the protector, and it is also possible to replace the blood collection needle cartridge and use a new one.

In addition, as a means for engaging and disengaging the notch handle, the locking piece attached to and detached from the lower side of the laterally movable notch part built into the notch handle is always kept in contact with the guide groove wall of the holder case, which has a locking step, by a spring. The holder can be locked while sliding, and the locking piece can be moved laterally using a presser lever provided on the top surface of the holder to release the lock.

(Example) An example of this invention will be described below based on the drawings.

FIG. 1 shows a simple holder 1 for blood collection. The blood sampling needle cartridge 2 has a protector 4 having a sagging eaves portion with left and right side edges that can be attached to the front end 3 of the holder, including the right and left sides, and a central opening 5 through which the tip of the blood sampling needle 7 can be seen. A frame 6 with a protruding blood sampling needle is inserted and locked into an inverted T-shaped locking groove 8 provided at the end of the holder. The blood sampling needle cartridge 2 can be inserted into and removed from the simple blood sampling holder 1 while the upper edge of the frame protrudes from the holder and is held between fingertips. In addition, Figures 2 to 3
The figure shows the configuration of a blood sampling needle cartridge 2 made of an elastic material for reference. In FIG. 1, the front end of a notch handle 10 having a notch on the upper surface is inserted into a guide groove 9 opened on the side of the holder along the center line of the blood collection needle in contact with the cartridge locking groove 8 and locked in the retracted position. This shows that a protrusion 11 is provided.
A holding lever 13 that can be pushed by hollowing out the holder wall protruding from the center of the top surface of the simple blood sampling holder 1
A mounting screw 1 is provided on the holder case 14 on one side and can be screwed together with the holder case 15 on the opposite side.
The holder 1 is formed by screwing screws 6 into three places. FIG. 4 shows the forward position of the notch handle 10 inserted into the guide groove 9 opened on the side of the holder, and the protrusion 11 provided at the center of the front surface of the notch handle 10 abuts against the back surface of the frame 6 of the blood sampling needle cartridge 2. FIG. 5 shows the internal assembly structure of the holder case 15. The notch handle 10 in the forward position is stopped by the front step edge 17 of the guide groove 9 and is inserted into the guide rod 18 protruding on the center line of the rear surface. The rear end surface of the compression spring 19 is resiliently mounted on the bottom 20 of a guide hole provided at the rear side of the holder, so that it can freely slide within the guide groove 9. In addition, a guide cover 21 is provided on the upper surface of the rear part of the handle 10 to protrude rearward to prevent operation obstruction due to entry of foreign objects.
will be established.

The notch handle 10 shown in FIG. 6 has a notch portion 22 carved with a notch on its upper surface, and a locking piece 23 is attached to the lower surface of the notch portion 22. Furthermore, the lower gap 26 is formed so that the locking piece 23 can move laterally, and the tip of a restraining spring 27 provided on the right side surface of the notch handle 10 shown in FIG. 7 is brought into contact with the side surface of the locking piece 23. The locking piece 23 is always placed on the left side for lateral movement. The left side surface of the locking piece 23 has a rearwardly inclined surface in order to slide on the guide groove wall 28 provided on the inner surface of the holder case 14 on which the holding lever 13 is protruding, and to facilitate locking to the locking step 29. 30 are provided. The notched handle body 24 has a cross shape as shown in FIG. 8 which can be fitted into the opposing U-shaped guide grooves 9, and has a protrusion 11 in the center of the front surface and a guide rod 18 embedded in the rear end. The notch handle 10 is made of plastic material, and its elasticity causes an integrated restraining spring 27 to act. Further, the holder cases 14 and 15 are also made of plastic material, and due to their elasticity, a presser lever 13 protruding from the upper surface 12 of the holder case as shown in FIGS. 9 and 10 is used.
is pushed inward through the opening 32 provided in the holder wall, and the inner surface 31 is pushed out into the guide groove 9, thereby locking and releasing the locking piece 23 of the notch handle 10 that is locked to the locking step 29. let Figure 11 shows the guide groove wall 28 on the inner surface of the holder case and the presser lever 1.
FIG. 12, which shows the inner surface of the guide groove 3 and shows the AA section thereof, shows the relationship between the locking step 29 provided on the guide groove wall 28 and the holding lever 13 provided at the rear thereof.

(Effects of the invention) Since this invention has the above configuration, it has the following advantages.

(1) It can be used with one touch by gripping it with one hand and locking the notch handle with fingertip operation.The protrusion and retraction of the blood sampling needle is performed by the elastic body, and the needle tip can be kept inside the holder at all times, so it is not necessary for an experienced person to do so. At the very least, the medical device must be safe and convenient to handle and use.

(2) A protector is added to the front of the replaceable blood collection needle cartridge to protect the holder from blood contamination during blood collection, making it clean and convenient.

[Brief explanation of the drawing]

Figure 1 is an overall explanatory view (perspective view) of the simple holder for blood collection, Figure 2 is a rear view of the blood collection needle cartridge,
Figure 3 is a side view, Figure 4 is an overall view of the simple holder for blood collection (top side view), Figure 5 is an explanatory diagram of the internal assembly of the holder case, and Figure 6 is an assembly diagram of the notch handle (front view). , Fig. 7 is the same as above (top view), Fig. 8 is the same as above (side view), Fig. 9 is an external view of one side holder case (front view), Fig. 10 is the same as above (side view), Fig. 11 is the same as above. The internal explanatory view (front view) and FIG. 12 are AA sectional views of the same. Explanation of symbols of main parts, 1... Simple holder for blood collection, 2... Blood sampling needle cartridge, 3... Front end of holder, 4... Protector, 5... Opening,
6... Frame, 7... Blood collection needle, 8... Locking groove,
9... Guide groove, 10... Notch handle, 11...
...Protrusion, 12... Holder top surface, 13... Holder lever, 14... Holder case, 17... Front end step, 18... Guide rod, 19... Compression spring, 20... Guide hole bottom, 22... ...Notchi part, 23
... Locking piece, 25 ... Guide step, 27 ... Retaining spring, 28 ... Guide groove wall, 29 ... Locking step, 31
...Inner surface (presser lever).

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A notch portion 22 that is provided with a guide groove 9 that opens along the longitudinal side surface of the one-handed holder case 14, and that allows the notch handle 10 that is fitted and guided to move by fingertip operation. is provided on the top surface, and a compression spring 19 guided by a guide rod 18 protruding from the rear surface is loaded between the rear end of the notch handle 10 and the bottom 20 of the guide hole provided on the rear side of the holder case 14. The notch handle 10 is provided with a locking means that can be engaged in the retracted position of the notch handle 10.
A presser lever 13 is provided on one side of the guide groove wall 28 and is made of an elastic body that can return to its original position after being locked and released by abutting and pressing the inner surface 31 of the presser lever 13 that protrudes from the outer surface of one side of the case 14. The needle is inserted into the locking groove 8 provided at the front end of the guide groove 9, and is mounted with the needle tip facing into the opening 5 of the front end 3 of the holder, and is removably locked. A protrusion 11 that abuts against the back surface of the frame 6 made of an elastic body of the blood sampling needle cartridge 2 is protruded from the front part of the notch handle 10, and a front end step that forms the rear wall of the locking groove 8 in the guide groove 9 is provided. A simple blood sampling needle holder characterized by having a structure that causes the blood sampling needle 7 to undergo an elastic protruding and retracting stroke in the forward position of the notch handle 10 when it hits the portion 17. (2) The blood collection needle 7 is placed vertically in the center of the back bone provided in the center of the opening surrounded by a plate-shaped square frame, and the elastic force is applied to press the back surface of the back bone and restore it to its original position. A protector 4 is provided with a frame 6 and an opening 5 through which the needle tip can be seen from one edge of the frame 6, and a cantilevered eaves portion that surrounds and covers the blood collection needle 7 in a hanging shape.
A simple holder for blood collection according to claim (1) of the registered utility model, characterized in that a blood collection needle cartridge 2 made of an elastic body is provided. (3) Holder case 1 with presser lever 13
A locking step 29 is attached to the guide groove wall 28 provided on the inside of 4.
At the same time, a guide step 25 is provided at the center of the notch handle 10, and a locking piece 23 is attached to the lower side of the notch part 22, which is fitted so as to be movable laterally, and a presser spring is provided on the opposite side surface of the notch handle 10. 2
7 and the aforementioned guide groove wall 28 so that the notch handle 10 can be slid and locked while constantly abutting against the groove wall.The locking piece 23 can be moved laterally to be locked and released at the locked position of the notch handle 10. inner surface 3
1. A simple blood sampling holder according to claim (1) of the registered utility model, characterized in that a presser lever 13 having a presser lever 13 is provided in a protruding manner so as to be freely engageable and detachable.