CN216294047U - Pen type blood taking needle storage device - Google Patents
Pen type blood taking needle storage device Download PDFInfo
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- CN216294047U CN216294047U CN202122236843.XU CN202122236843U CN216294047U CN 216294047 U CN216294047 U CN 216294047U CN 202122236843 U CN202122236843 U CN 202122236843U CN 216294047 U CN216294047 U CN 216294047U
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Abstract
The utility model discloses a pen-type blood taking needle storage device, which comprises a blood taking needle combination device and a storage device, wherein the storage sleeve of the storage device comprises a section of hollow sleeve, one end part of the hollow sleeve is provided with a hooking elastic convex card yielding arm for yielding a hooking elastic arm of a needle taking device, the end pipe arm of the hollow sleeve, which is provided with the hooking elastic convex card yielding arm, is also provided with a ball hole for mounting balls and communicating the inner wall and the outer wall of the hollow sleeve, the balls roll in the ball hole, and the balls protrude out of the inner wall and the outer wall of the hollow sleeve. The blood taking needle storage device adopts the ball structure to replace a locking elastic arm structure of the original patent, so that the storage sleeve is easier to process, the requirement on the material of the storage sleeve can be reduced, and the operation of the needle taking device is more convenient, faster and smoother when the needle is taken by adopting the ball structure.
Description
Technical Field
The utility model relates to a blood sampling device, in particular to a pen-type blood sampling needle storage device.
Background
In clinical practice, there is a pen type vacuum blood taking needle commonly used, which is composed of a needle base, a puncture needle tube and a blood taking needle tube fixedly connected to both ends of the needle base, and an outer sealing rubber sleeve hermetically connected to the blood taking needle tube, wherein a tightly fixed outer thread is arranged outside the fixedly connected end of the blood taking needle tube on the needle base, and when in use, the needle base is used in cooperation with a cylindrical needle holder, one end of the needle holder is provided with a blood taking needle tightly fixed inner thread, and the other end of the needle holder is completely open for the insertion of a vacuum blood taking receiving tube. Before blood sampling, the protective sleeve of the blood sampling needle tube is removed, the blood sampling end and the fastening thread on the needle base are exposed, the blood sampling needle is inserted into the fastening end of the needle holder and screwed, then the protective sleeve outside the puncture needle tube is removed, and the combination of the blood sampling needle assembly is completed. When blood is collected, the puncture needle tube penetrates into a blood vessel of a human body, blood return is observed when the needle base is observed, the needle tip of the puncture needle tube enters the blood vessel, then the vacuum blood collection containing tube can be inserted into the open end of the needle holder for blood collection, the blood collection is finished, the blood collection needle is withdrawn from the human body, in order to prevent the blood-carrying puncture needle tube from accidentally injuring people and prevent blood in the needle tube from polluting the environment, the puncture needle tube is required to be sleeved with a protective sleeve which is pulled out before, and the use of the blood collection needle is finished. When the blood taking needle is used, the protective sleeve of the puncture needle tube needs to be sleeved back, so that an operator is easily accidentally injured, and psychological burden is caused to the operator. In view of the above situation, the patent of the applicant with application number 2021214468794 applies for a pen type blood taking needle storage device, which improves the prior art and develops a blood taking needle with ingenious structure and convenient and safe use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pen type blood taking needle storage device which is more accurate in positioning, smoother in operation and better in processing based on the application.
The utility model provides a pen-type blood taking needle storage device, including blood taking needle composite set and storage device, blood taking needle composite set including cylindric needle holder and needle seat body, storage device including getting needle ware, spring, restriction sliding sleeve and storage sleeve pipe, the outer peripheral face of getting the needle ware body is provided with one section and is the locking surface of circular cone ladder face, is provided with the hooking elastic arm that is used for hooking needle seat body, its characterized in that at a tip of getting the needle ware body:
the accommodating sleeve comprises a section of hollow sleeve, a hooking elastic convex card yielding arm for yielding the hooking elastic arm of the needle taking device is arranged at one end of the hollow sleeve, a ball hole for installing balls and communicating the inner wall and the outer wall of the hollow sleeve is further arranged on the end pipe arm of the hollow sleeve with the hooking elastic convex card yielding arm, the balls roll in the ball hole and protrude out of the inner wall and the outer wall of the hollow sleeve, the position of the ball hole faces the large end of a conical step stop surface when the needle taking device is positioned in the inner cavity of the accommodating sleeve, and a positioning groove matched with the elastic positioning convex card on the limiting sliding sleeve is further arranged at the end of the hollow sleeve with the hooking elastic convex card yielding arm;
the limiting sliding sleeve is sleeved at one end, provided with a hooking elastic convex card yielding arm, of the hollow sleeve of the containing sleeve, an elastic positioning convex card is arranged on the limiting sliding sleeve, and the elastic positioning convex card is matched with a positioning groove in the containing sleeve for use.
According to the pen type blood taking needle storage device, the hooking and stopping elastic convex card arranged on the storage sleeve in the application number of 2021214468794 is replaced by the ball type structure, the ball protrudes out of the upper wall and the lower wall of the storage sleeve, when the pen type blood taking needle storage device is assembled, the ball is located between the limiting sliding sleeve and the needle taking device and limited by the limiting sliding sleeve from the upper part and the conical stepped stopping surface of the needle taking device from the lower part, once the storage sleeve moves, the ball is pushed to roll, the limitation of the needle taking device is relieved, the needle taking device drives the needle base body in the blood taking needle combination device to perform recovery movement, and the needle base body drives the blood taking needle to be stored.
The end of the hollow sleeve of the containing sleeve, which is provided with a yielding arm hooked with the elastic convex card, is provided with a plurality of anti-falling side holes, the limiting sliding sleeve is also provided with an anti-falling elastic anti-falling convex card, the elastic anti-falling convex card is provided with an anti-falling surface vertical to the axis, and the anti-falling elastic anti-falling convex card on the limiting sliding sleeve is matched with the anti-falling side holes on the containing sleeve.
The groove far-end axial end face of the positioning groove in the hollow sleeve of the storage sleeve is an inclined plane, the inclined plane is convenient for the positioning elastic convex card on the limiting sliding sleeve to climb, and the elastic positioning convex card on the limiting sliding sleeve is provided with the inclined plane.
The diameter of the ball hole of the upper wall of the containing pipe wall is larger than that of the ball, and the diameter of the ball hole of the lower wall of the containing pipe wall is smaller than that of the ball.
The diameter that is less than the ball is designed into in the ball aperture that will accomodate the pipe wall lower wall, can realize like this the location to the ball, avoids dropping of ball, can realize the ball free roll from top to bottom again.
The extension spring is made of metal elastic material or elastic material with tensile property.
The extension spring is a cylindrical spring, a tower-shaped spring, a disc-shaped spring or a strip.
In summary, compared with the prior art, the utility model has the following advantages:
the blood taking needle storage device adopts the ball structure to replace a locking elastic arm structure of the original patent, so that the storage sleeve is easier to process, the requirement on the material of the storage sleeve can be reduced, and the operation of the needle taking device is more convenient, faster and smoother when the needle is taken by adopting the ball structure.
Drawings
Figure 1 is a schematic view of the lancet assembly of the present invention.
Fig. 2 is a schematic cross-sectional view of fig. 1.
Fig. 3 is a schematic view of the storage device of the present invention.
Fig. 4 is a schematic cross-sectional view of fig. 3.
FIG. 5 is a schematic view of the structure of the needle holder body
Fig. 6 is an internal schematic view of the needle holder body.
FIG. 7 is a schematic structural view of the needle holder.
FIG. 8 is another angle schematic view of the needle holder.
FIG. 9 is a schematic view of the interior of the needle holder.
FIG. 10 is a schematic structural view of the needle extractor.
FIG. 11 is a schematic view of the inside of the needle extractor.
Fig. 12 is a schematic structural view of the receiving sleeve.
Fig. 13 is an internal schematic view of the receiving sleeve.
Figure 14 is a schematic view of a restraining sleeve.
Figure 15 is a schematic view of the interior of the restraining sleeve.
FIG. 16 is a schematic view showing a state in which the pen type lancet storing device is used.
Detailed Description
The present invention will be described in more detail with reference to examples.
Example 1
A pen-type blood taking needle storage device comprises a blood taking needle combination device and a storage device, wherein the blood taking needle combination device comprises a blood taking needle, a cylindrical needle holder and a needle holder body, and the storage device comprises a needle taking device, a spring seat, a limiting sliding sleeve and a storage sleeve;
the needle seat body is a hollow cylindrical body, an inner thread matched with the blood taking needle is arranged in the inner cavity of the hollow cylindrical body, a circle of stop flange is arranged on the outer peripheral surface of the hollow cylindrical body, a plurality of rotation stopping ribs extending along the axis of the hollow cylindrical body are arranged on the outer peripheral surface of the hollow cylindrical body on one side of the stop flange, a circle of annular flange is arranged on the outer peripheral surface of the hollow cylindrical body on the other side of the stop flange, the end surface of one side, close to the stop flange, of the annular flange is a vertical surface vertical to the axis of the hollow cylindrical body, and the end surface of the other side of the annular flange is a conical surface with an inclination angle;
the needle holder is characterized in that the cylindrical needle holder is a cylindrical body, one end of the cylindrical body is open, the other end of the cylindrical body is semi-closed, a mounting hole for accommodating the needle seat body is formed in the semi-closed end, a rotation stopping groove matched with a rotation stopping rib on the needle seat body is formed in the hole wall of the mounting hole, an open slot is formed in the side wall of the semi-closed end of the cylindrical body, a stopping elastic arm is arranged on the open slot close to the semi-closed end, one end of the stopping elastic arm is fixed on the side wall of the cylindrical body, the other end of the stopping elastic arm extends into the inner cavity of the cylindrical body, the end face of the free end of the stopping elastic arm is a stopping face, the fixed end of the stopping elastic arm is a limiting convex card, an elastic separation stopping card is arranged on the open slot far away from the semi-closed end, the elastic separation stopping card protrudes into the inner cavity of the cylindrical body, and the top face of the separation stopping card extending into the inner cavity of the cylindrical body is perpendicular to the axial line of the cylindrical body;
the needle base body is embedded in the semi-closed end of the cylindrical needle holder, the anti-rotation rib on the needle base body is matched with the anti-rotation groove of the cylindrical needle holder, the stop flange on the needle base body is clamped on the inner side surface of the semi-closed end of the needle holder, the stop surface of the stop elastic arm on the needle holder abuts against the end surface, close to the annular flange, of the stop flange on the needle base body, and the blood taking needle is connected to the inner cavity of the needle base body;
the needle taking device comprises a needle taking device body, wherein one end of the needle taking device body is a hollow cylindrical body, a plurality of needle base body hooking elastic arms are arranged at the end of the hollow cylindrical body, hooking surfaces vertical to the axis of the hollow cylindrical body are arranged at the free ends of the hooking elastic arms, a hanging lug for fixing a tension spring is arranged at the other end of the needle taking device body, the hollow cylindrical body end of the needle taking device can be clamped into a stopping flange end of the needle base body, the hooking surfaces of the hooking elastic arms of the needle taking device can be clamped on the vertical surface of the stopping flange of the needle base body, and a stopping surface in the shape of a conical step surface is arranged on the outer peripheral surface of the needle taking device body;
the accommodating sleeve comprises a section of hollow sleeve, a hooking elastic convex card yielding arm for yielding the hooking elastic arm of the needle taking device is arranged at one end of the hollow sleeve, a ball hole for installing balls and communicating the inner wall and the outer wall of the hollow sleeve is further arranged on the end pipe arm of the hollow sleeve with the hooking elastic convex card yielding arm, the balls roll in the ball hole and protrude out of the inner wall and the outer wall of the hollow sleeve, the position of the ball hole faces the large end of a conical step stop surface when the needle taking device is positioned in the inner cavity of the accommodating sleeve, and a positioning groove matched with the elastic positioning convex card on the limiting sliding sleeve is further arranged at the end of the hollow sleeve with the hooking elastic convex card yielding arm; the limiting sliding sleeve is sleeved at one end, provided with a hooking elastic convex card yielding arm, of the hollow sleeve of the containing sleeve, an elastic positioning convex card is arranged on the limiting sliding sleeve, and the elastic positioning convex card is matched with a positioning groove in the containing sleeve for use.
The end of the hollow sleeve of the containing sleeve, which is provided with a yielding arm hooked with the elastic convex card, is provided with a plurality of anti-falling side holes, the limiting sliding sleeve is also provided with an anti-falling elastic anti-falling convex card, the elastic anti-falling convex card is provided with an anti-falling surface vertical to the axis, and the anti-falling elastic anti-falling convex card on the limiting sliding sleeve is matched with the anti-falling side holes on the containing sleeve.
The groove far-end axial end face of the positioning groove in the hollow sleeve of the storage sleeve is an inclined plane, the inclined plane is convenient for the positioning elastic convex card on the limiting sliding sleeve to climb, and the elastic positioning convex card on the limiting sliding sleeve is provided with the inclined plane.
The diameter of the ball hole of the upper wall of the containing pipe wall is larger than that of the ball, and the diameter of the ball hole of the lower wall of the containing pipe wall is smaller than that of the ball.
The extension spring 7 may be made of metal elastic material, or other elastic material with tensile property, and may be in the form of a cylindrical spring, a tower spring, a disc spring, or a strip.
The needle mount of fig. 5 and 6 is made of plastic or rigid material.
3.1 tightening internal screw thread of blood taking needle
3.2 mounting stop flange, 3.2.1 proximal stop face, 3.2.2 distal stop face
3.3 a plurality of rotation-stopping ribs,
3.4 is an annular flange with a proximal flange end face perpendicular to the axis, a distal flange end face that is conical,
and 3.5 is a component mean-wall ring groove.
As shown in the figures 7-9, the needle holder is a cylindrical thin-shell revolving body, wherein one end of the needle holder is provided with a semi-closed sealing plate, a needle holder body mounting hole and a rotation stopping groove are arranged on the sealing plate, and the other end of the needle holder body is completely open. Is made of plastic with certain elasticity.
2.1 is a handle of a button,
2.2 the inlet and outlet openings of the blood sampling tube,
2.3 is the mounting hole of the needle base body, the aperture is larger than the maximum outer diameter of the needle base of the blood taking needle, and the inner side of the mounting hole is provided with a plurality of anti-rotation grooves 2.4 which are matched with the anti-rotation ribs on the needle base body.
2.5 is that the needle base body is fixedly connected with a stop elastic arm, the elastic arm is in a convergent shape, the top end surface of the elastic arm is a stop surface 2.5.1, and the bottom end of the elastic arm is provided with a limit convex card 2.5.2.
2.6 is an elastic anti-slip card which protrudes into the inner cavity, and the top surface 2.6.1 of the anti-slip card is vertical to the axis.
2.7 is a semi-closed sealing plate with a certain thickness.
As shown in figures 10-11, the needle holder is made of elastic plastic, and the size of the cavity can meet the requirement that the blood collecting end of the blood collecting needle is inserted with a sealing rubber sleeve.
4.1, a plurality of needle bases hook the elastic convex card, and the distal surface of the convex card is a hook surface 2.4.1 which is vertical to the axis.
4.2 one end of the extension spring for taking the blood taking needle is hooked on the lug
4.3 a plurality of needle taking device sliding guide ribs can be omitted.
As shown in fig. 12-13, the receiving sleeve is made of a plastic having a certain elasticity.
6.1 are ball holes
6.2 are a plurality of grooves for positioning and limiting the sliding sleeve, which are matched with the positioning convex cards on the limiting sheath, and the axial end surface of the far end of each groove is an inclined surface, which is convenient for limiting the climbing movement of the positioning elastic cards on the sliding sleeve.
6.3 are a plurality of anti-disengaging side holes, which are used for accommodating the elastic convex card which stops disengaging on the limiting sliding sleeve and preventing the limiting sliding sleeve from disengaging from the small end of the containing sleeve.
And 6.4, hooking the needle extractor with an elastic convex card to open an elastic avoiding arm, wherein a needle extractor sliding rib guide chute 6.4.1 is arranged on the inner side of the avoiding arm.
As shown in figures 14-15 the restraining slips are made of a somewhat resilient plastic,
5.1 is an elastic positioning convex card which is limited to be sleeved on the small end section of the receiving sleeve in a sliding mode, and the near end of the positioning convex card is an inclined climbing surface 5.1.1.
5.2 is an anti-slip elastic anti-slip convex card, and the far end surface of the convex card is an axial vertical anti-slip surface 5.2.1.
As shown in fig. 1-4, fig. 16,
assembling process of the blood taking needle combination device:
firstly, one end of a needle seat body 3 with a rotation stopping rib 3.3 faces an opening 2.2 of a needle holder 2, the needle seat body is plugged into an inner cavity of the needle holder and is pushed forwards all the time, the rotation stopping rib on the needle seat body is adjusted to be aligned with an upper rotation stopping groove 2.4 of the needle holder, the needle seat body is pushed slightly hard to prop open an upper rotation stopping elastic arm 2.5 of the needle holder, the needle seat body slides over the rotation stopping elastic arm, one end of the needle seat body with the rotation stopping rib is embedded into an upper needle seat body mounting hole 2.3 of the needle holder, the rotation stopping rib is also embedded into the upper rotation stopping groove of the needle holder, a near end stopping surface 3.2.1 is abutted against the inner side surface of an upper sealing plate 2.7 of the needle holder, a far end stopping surface 3.2.2.2 slides over the upper rotation stopping elastic arm of the needle holder, the elastic stopping arm is reset, and an upper stopping surface 2.5.1 is just abutted against the far end stopping surface of the needle holder body. Then, the protective sleeve of the blood taking needle tube on the pen type blood taking needle is removed to expose the blood taking end, the tightly fixed external thread on the protective sleeve is also exposed, then the blood taking end is inserted into the tightly fixed internal thread hole 3.1 on the needle base body, and the blood taking needle is screwed up, so that the combination of the blood taking needle assembly is completed. When blood is to be collected, the puncture needle tube protective sleeve on the blood collection needle is removed, and the blood collection needle can be used.
Assembly process of blood taking needle storage device
The small end of the containing sleeve 6 is inserted into the limiting sliding sleeve towards one end of the limiting sliding sleeve 5 with the elastic convex card, the positioning limiting sliding sleeve groove 6.2 and the anti-release side hole 6.3 on the containing sleeve are respectively aligned with the elastic positioning convex card 5.1 and the elastic anti-release convex card 5.2 on the limiting sliding sleeve, the containing sleeve is pushed forwards with little force, the elastic positioning convex card on the limiting sliding sleeve is clamped in the positioning groove on the containing sleeve, and the elastic anti-release convex card on the limiting sliding sleeve is also clamped in the anti-release side hole on the containing sleeve, so that the limiting sliding sleeve can not be separated from the containing sleeve. Then, a hook is arranged at one end of an extension spring for taking the blood taking needle into and hooked into a spring mounting and hooking lug 4.2 on a needle taking device, then, the other end of the extension spring of the combined piece faces the small end of the containing sleeve and is inserted into the inner cavity of the containing sleeve, the needle taking device is also inserted into the inner cavity of the containing sleeve along with the spring, a sliding guide rib 4.3 on the needle taking device is inserted into a guide chute 6.4.1 on the containing sleeve along with the spring, until a conical step surface on the needle taking device is abutted against balls 6.1.1 in a ball hole on the containing sleeve, and the limiting sliding sleeve is sleeved outside the small end of the containing sleeve, so that the ball on the containing sleeve is just hooped by the small hole inner cavity surface of the limiting sliding sleeve at the position, the ball cannot swing and expand towards the outer side of the containing sleeve, the conical step surface on the needle taking device is always abutted against the balls on the containing sleeve, and the needle taking device is stopped to continuously slide in. Then, a tool is used for hooking the free end of the extension spring, the extension spring pulls the mounting hook on the free end out of the inner cavity of the storage sleeve to be exposed out of the large end opening of the storage sleeve, the spring mounting hook 8.1 on the spring mounting seat 8 is hooked into the mounting hook on the free end of the spring, and finally the spring mounting seat is covered on the large end face of the storage sleeve, so that the blood taking needle storage device is assembled, the spring is in a stretching state, and the needle taking device is pulled towards the large end portion of the storage sleeve.
The pen type lancet storage device of the present invention is used as follows:
when the blood of a patient needs to be collected, a needle holder of the blood taking needle assembly is held by hand, the outer protective sleeve of the blood taking needle puncture needle tube is removed, the puncture needle tube is punctured into the needed blood vessel, and after blood returns, the vacuum blood collection tube can be inserted to collect the blood. After the blood collection is finished, the blood taking needle does not need to be withdrawn from a blood vessel of a patient, one hand continues to hold the blood taking needle assembly, the other hand holds the blood taking needle containing device, one end of the device provided with a limiting sliding sleeve is inserted into the inner cavity of a needle holder from the opening of the needle holder, the large end face of the limiting sliding sleeve sleeved outside the small end of the containing sleeve is firstly contacted with the upper end stop release clip of the needle holder, then, the palm face is utilized to support the end face of the containing device exposed outside the needle holder, the forefinger and the middle finger respectively buckle the upper buckle of the needle holder, the containing device is continuously pushed into the needle holder by utilizing the palm face, then, the upper end stop release clip of the needle holder climbs over the outer surface of the large end of the limiting sliding sleeve, the stop release clip restores, at the moment, the upper end stop release clip and the stepped face of the limiting sliding sleeve form a clamping contact relation, the needle holder cannot release clip and release clip, and the needle holder cannot release clip reversely, meanwhile, the opening end face of the containing sleeve of the containing device touches the upper end stop elastic arm, the elastic convex card hooked on the needle taking device also touches the inclined plane of the annular flange on the needle base body, the large end surface of the limiting sliding sleeve sleeved on the small end of the containing sleeve also touches the end surface of the limiting convex card at the lower end of the elastic arm on the needle holder, then, the palm surface is utilized to support the end surface of the containing device exposed at the outer part of the needle holder, the forefinger and the middle finger respectively buckle the upper buckle hand of the needle holder, the palm surface is utilized to push the containing device into the needle holder continuously, the opening end surface of the containing sleeve pipe props up the upper stop elastic arm of the needle holder, the upper hook elastic convex clamping arm of the needle holder is also propped up by the upper annular flange of the needle holder body, the convex clamp climbs the upper annular flange inclined surface to limit the sliding sleeve to be locked by the lower limit convex clamp of the locking elastic arm, and the elastic locating convex card on the limiting sliding sleeve climbs the outer wall of the small end of the containing sleeve to be separated from locating, the containing sleeve slides relative to the limiting sliding sleeve, and the inner cavity wall of the small end on the limiting sliding sleeve is gradually far away from the ball on the containing sleeve. Continuing to push the containing device, the opening end face of the containing sleeve continues to prop open the upper stop elastic arm of the needle holder, the stop elastic arm is made to break away from the far-end stop face of the needle base body, axial restraint on the needle base body is removed, meanwhile, the hooking elastic convex clamping arm on the needle taking device is also continued to be propped open by the annular flange on the needle base body, the convex clamping climbs over the inclined face of the annular flange, the convex clamping arm recovers and is hooked with the annular flange of the needle base body, the limiting sliding sleeve is still limited and cannot move, the containing sleeve continues to slide to the small end face of the limiting sliding sleeve relative to the limiting sliding sleeve to be abutted against the stepped face of the containing sleeve, the wall of the inner cavity at the small end on the limiting sliding sleeve is also far away from the ball on the containing sleeve, and limitation on the ball is removed. Under the tension of a pre-stretching spring arranged in the containing sleeve, the conical step surface on the needle taking device props up the elastic convex card hooked on the containing sleeve and slides towards the rear part of the containing sleeve, and simultaneously drives the needle seat body and the blood taking needle tightly fixed on the needle seat body to slide towards the inner cavity of the containing sleeve, so that the blood taking needle is completely pulled into a hole cavity formed by the needle holder and the containing sleeve, the needle tube is not exposed,
the parts not described in the present embodiment are the same as those in the prior art.
Claims (5)
1. Pen type blood taking needle storage device, including blood taking needle composite set and storage device, blood taking needle composite set including cylindric needle holder and needle seat body, storage device including getting needle ware, spring, restriction sliding sleeve and storage sleeve pipe, the outer peripheral face of getting the needle ware body is provided with one section and is the locking face of circular cone ladder face, is provided with the hooking elastic arm who is used for hooking needle seat body, its characterized in that at a tip of getting the needle ware body:
the accommodating sleeve comprises a section of hollow sleeve, a hooking elastic convex card yielding arm for yielding the hooking elastic arm of the needle taking device is arranged at one end of the hollow sleeve, a ball hole for installing balls and communicating the inner wall and the outer wall of the hollow sleeve is further arranged on the end pipe arm of the hollow sleeve with the hooking elastic convex card yielding arm, the balls roll in the ball hole and protrude out of the inner wall and the outer wall of the hollow sleeve, the position of the ball hole faces the large end of a conical step stop surface when the needle taking device is positioned in the inner cavity of the accommodating sleeve, and a positioning groove matched with the elastic positioning convex card on the limiting sliding sleeve is further arranged at the end of the hollow sleeve with the hooking elastic convex card yielding arm;
the limiting sliding sleeve is sleeved at one end, provided with an elastic convex card yielding arm, of the hollow sleeve of the containing sleeve, and an elastic positioning convex card is arranged on the limiting sliding sleeve and matched with a positioning groove in the containing sleeve for use;
the diameter of the ball hole of the upper wall of the containing sleeve pipe wall is larger than that of the ball, and the diameter of the ball hole of the lower wall of the containing sleeve pipe wall is smaller than that of the ball.
2. The pen lancet receiving device according to claim 1, wherein: the end of the hollow sleeve of the containing sleeve, which is provided with a yielding arm hooked with the elastic convex card, is provided with a plurality of anti-falling side holes, the limiting sliding sleeve is also provided with an anti-falling elastic anti-falling convex card, the elastic anti-falling convex card is provided with an anti-falling surface vertical to the axis, and the anti-falling elastic anti-falling convex card on the limiting sliding sleeve is matched with the anti-falling side holes on the containing sleeve.
3. The pen lancet receiving device according to claim 1, wherein: the groove far-end axial end face of the positioning groove in the hollow sleeve of the storage sleeve is an inclined plane, the inclined plane is convenient for the positioning elastic convex card on the limiting sliding sleeve to climb, and the elastic positioning convex card on the limiting sliding sleeve is provided with the inclined plane.
4. The pen lancet receiving device according to claim 1, wherein: the spring is made of metal elastic material or elastic material with tensile property.
5. The pen lancet receiving device according to claim 4, wherein: the spring is a cylindrical spring, a tower-shaped spring, a disc-shaped spring or a strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122236843.XU CN216294047U (en) | 2021-09-15 | 2021-09-15 | Pen type blood taking needle storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122236843.XU CN216294047U (en) | 2021-09-15 | 2021-09-15 | Pen type blood taking needle storage device |
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| Publication Number | Publication Date |
|---|---|
| CN216294047U true CN216294047U (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122236843.XU Active CN216294047U (en) | 2021-09-15 | 2021-09-15 | Pen type blood taking needle storage device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113892949A (en) * | 2021-09-15 | 2022-01-07 | 福州康利特医疗器械有限公司 | Pen type blood taking needle storage device |
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2021
- 2021-09-15 CN CN202122236843.XU patent/CN216294047U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113892949A (en) * | 2021-09-15 | 2022-01-07 | 福州康利特医疗器械有限公司 | Pen type blood taking needle storage device |
| CN113892949B (en) * | 2021-09-15 | 2024-02-23 | 福州康利特医疗器械有限公司 | Pen type blood taking needle storage device |
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