CN113362668B - Clinical venipuncture practice equipment - Google Patents
Clinical venipuncture practice equipment Download PDFInfo
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- CN113362668B CN113362668B CN202110628648.3A CN202110628648A CN113362668B CN 113362668 B CN113362668 B CN 113362668B CN 202110628648 A CN202110628648 A CN 202110628648A CN 113362668 B CN113362668 B CN 113362668B
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
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Abstract
The invention relates to the technical field of medical experimental equipment and discloses clinical venipuncture practice equipment which comprises an installation box, wherein a rotating mechanism is installed in the installation box, clamping mechanisms are uniformly distributed on the rotating mechanism, a body imitation mechanism is fixedly installed on the clamping mechanisms and comprises an embedding block, the embedding block is fixedly installed on the clamping mechanisms, a vein imitation channel is embedded in the embedding block, two sides of the vein imitation channel are connected with feed inlets, a sealing mechanism is arranged in the feed inlets, a feeding mechanism is installed at the top end of the front side of the rotating mechanism and is installed on a lifting mechanism, an opening is formed in the top end of the installation box, and an induction needle mechanism is arranged on the left side of the top end of the installation box. The vein imitation body training device can quickly replace different vein imitation bodies, the training range and the training effect are enlarged, the arranged induction needle mechanism can effectively prompt the training result, the visual observation of trainees is facilitated, the imitation body mechanism is convenient to replace and maintain, and the practicability is high.
Description
Technical Field
The invention relates to the technical field of medical experimental equipment, in particular to a clinical venipuncture practice device.
Background
The venipuncture catheter is mainly used for central venous pressure monitoring, hemodialysis, venous nutrition, patients with difficulty in superficial venipuncture infusion, cancer chemotherapy patients and the like. The traditional blind transfemoral vein is positioned according to the anatomical structures of femoral artery and femoral vein. For patients with different body types and patients with blood vessel deformation and variation, the puncture success rate is affected, repeated puncture is caused, the puncture time is prolonged, and the pain of the patients is increased.
Consequently need medical personnel to carry out skilled rear practical to the vein puncture, and current vein puncture exercise equipment is mostly all single imitative body and practices, and the exercise scope is single, and the exercise scene condition is less, is difficult to improve exerciser's operation fast, and how also not convenient observation exercise result is how with the needle during the exercise, and inconvenient changes the maintenance to imitative body.
Aiming at the problems, the invention provides a clinical venipuncture practice device which has the advantages of enlarging the practice range, improving the practice efficiency and quality, facilitating maintenance, facilitating observation of the practice structure and the like.
Disclosure of Invention
In order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides a clinical venipuncture exercise equipment, including the mounting box, install rotary mechanism in the mounting box, evenly distributed has fixture on the rotary mechanism, fixed mounting has imitative body mechanism on the fixture, imitative body mechanism includes the embedding piece, embedding piece fixed mounting is on fixture, embedded installing imitative vein passageway in the embedding piece, imitative vein passageway both sides are connected with the feed inlet, be provided with sealing mechanism in the feed inlet, reinforced mechanism is installed on rotary mechanism front side top, reinforced mechanism installs on elevating system, mounting box top end opening, mounting box top left side is provided with response needle mechanism.
Preferably, the rotating mechanism comprises a rotating roller, clamping mechanisms are uniformly distributed on the rotating roller, a driven wheel is mounted on the rotating roller, driven grooves are uniformly formed in the driven wheel, a driving motor is arranged on one side of the driven wheel, a driving wheel is mounted on a driving shaft of the driving motor, a driving rod is arranged on the driving wheel, and the driving rod acts on the driven grooves.
The during operation, when changing different imitative body mechanisms, it rotates to drive the drive wheel to drive through driving motor work, the drive wheel rotates and makes actuating lever on the drive wheel act on from the driven groove in the driving wheel, thereby make the actuating lever drive to rotate from the driving wheel, when the drive wheel is every to rotate the round, the actuating lever acts on and drives from driving wheel rotation 60 degrees, thereby drive rotatory roller and rotate 60 degrees, and then realize the quick replacement station, make next imitative body mechanism move the mounting box top open position and supply the exerciser to practise the operation, it increases the exerciser's exercise scope to be provided with a plurality of different imitative body mechanisms on rotatory roller, improve exerciser's exercise efficiency and quality.
Preferably, fixture includes the bracing piece, and bracing piece evenly distributed is on rotatory roller, and the backup pad is installed on the bracing piece top, and the spout has been seted up to the symmetry in the backup pad, and symmetrical slidable mounting has the slider in the spout, is provided with the grip block on the slider, and the embedding piece is installed the fixed screw by grip block fixed mounting in the backup pad on the slider.
When changing the maintenance to imitative body mechanism, loosen the fixed screw on the slider in the spout, remove the position of slider in the spout for grip block on the slider unclamps the fixed centre gripping to the embedding piece in imitative body mechanism, thereby can go down the embedding piece from the backup pad in the fixture, conveniently change the maintenance to the embedding piece.
Preferably, sealing mechanism includes the closing plate, and the closing plate passes through the spring axle to be installed in the feed inlet, and the closing plate agrees with each other with the feed inlet, and feed inlet one side is provided with the tray, and the closing plate is placed on the tray.
Preferably, elevating system includes the mounting panel, and mounting panel fixed mounting is in rotatory roller top front side, and the connecting plate is installed through the telescopic link in the mounting panel both sides, and reinforced mechanism is connected to the connecting plate both sides, and the mounting panel mid-mounting has the push rod motor, and the push rod top and the connecting plate of push rod motor are connected.
Preferably, reinforced mechanism includes the storage case, and storage case fixed mounting is on the support in the mounting box, and storage case top is connected with the water pump, and connecting plate both ends symmetry is provided with the charge door, is provided with the ejector pin in the charge door, and the left charge door of connecting plate is connected with the water pump, and the charge door and the storage case on connecting plate right side are connected, and the charge door agrees with each other with the feed inlet.
When imitative body mechanism removed the mounting box top, work through the push rod motor among the elevating system drives the push rod and rises, the push rod rises and drives the connecting plate and risees, make the charge door at connecting plate both ends be connected with the feed inlet of imitative vein passageway both sides in the imitative body mechanism, the closing plate in the sealing mechanism in the feed inlet is decided to the ejector pin in the charge door simultaneously, make the closing plate upwards mention, thereby open the feed inlet, make the water pump work in the charge mechanism take out the liquid in the storage tank and let in the imitative vein passageway in the embedding piece, realize that liquid flows in imitative vein passageway, the simulation degree is improved.
Preferably, response needle mechanism includes the sleeve, and the sleeve setting has sealed piece in the sleeve in the mounting box top left side, and the sleeve left side is provided with first conducting strip, is provided with the second conducting strip behind the sealed piece, is provided with the spring between sealed piece and the sleeve, and the sleeve front end passes through hose connection experiment needle, and the pilot lamp is installed on the sleeve top.
The training personnel is when the exercise operation, holding the imitative vein passageway of experiment in aiming at the embedding piece and pricking, make the experiment needle with imitative vein passageway connection, thereby make the liquid in the imitative vein passageway get into along with the experiment needle, and enter into the sleeve through the hose, make the sealed piece among the liquid extrusion sleeve, make sealed piece to sleeve inside removal, make the second conducting strip of sealed piece rear side and the first conducting strip in the sleeve to being connected, thereby make the pilot lamp light, the exercise is successful, then take out the experiment needle, sealed piece is playback under the effect of spring, the pilot lamp extinguishes, carry out next round of exercise, make things convenient for the training personnel visual observation exercise result.
Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
1. this clinical venipuncture exercise equipment of using, in operation, when changing different imitative body mechanisms, it rotates to drive the drive wheel to drive through driving motor work, the drive wheel rotates and makes actuating lever on the drive wheel act on from the driven groove in the driving wheel, thereby make the actuating lever drive from the driving wheel rotation, when the every round that rotates of drive wheel, the actuating lever acts on and drives from driving wheel rotation 60 degrees, thereby drive rotatory roller and rotate 60 degrees, and then realize the quick replacement station, make next imitative body mechanism remove to mounting box top open position and supply the exerciser to practise the operation, it increases the exercise scope of exerciser to be provided with a plurality of different imitative body mechanisms on rotatory roller, improve exerciser's exercise efficiency and quality.
2. This clinical venipuncture exercise equipment of using, when imitative body mechanism removed the mounting box top, it rises to drive the push rod through the push rod motor work among the elevating system, the rising drive connecting plate of push rod risees, make the charge door at connecting plate both ends be connected with the feed inlet of imitative vein passageway both sides in the imitative body mechanism, the closing plate in the sealing mechanism in the feed inlet is decided to the ejector pin in the charge door simultaneously, make the closing plate upwards mention, thereby open the feed inlet, make the water pump work in the charging mechanism take out the liquid in the storage box and let in the imitative vein passageway in the embedding piece, realize that liquid flows in imitative vein passageway, and the simulation degree is improved.
3. This clinical venipuncture exercise equipment, the exerciser is when practicing the operation, it pierces to the imitative vein passageway in the accurate embedding piece to hold the experiment, make the experiment needle be connected with imitative vein passageway, thereby make the liquid in the imitative vein passageway get into along with the experiment needle, and enter into the sleeve through the hose, make the sealed piece in the liquid extrusion sleeve, make sealed piece to sleeve inside removal, make the second conducting strip of sealed piece rear side and the first conducting strip in the sleeve to being connected, thereby make the pilot lamp light, the exercise is successful, then take out the experiment needle, sealed piece playback under the effect of spring, the pilot lamp extinguishes, carry out next round of exercise, make things convenient for the exerciser visual observation exercise result.
4. This clinical venipuncture exercise equipment of using when changing the maintenance to imitative body mechanism, loosens the fixed screw on the slider in the spout, removes the position of slider in the spout for grip block on the slider loosens the fixed centre gripping to the embedding piece in imitative body mechanism, thereby can remove down the embedding piece from the backup pad in fixture, conveniently changes the maintenance to the embedding piece.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of the point B in FIG. 1 according to the present invention;
in the figure: 1. mounting a box; 2. a rotation mechanism; 201. a rotating roller; 202. a drive rod; 203. a driven wheel; 204. a driven groove; 205. a drive motor; 206. a drive shaft; 207. a drive wheel; 3. a clamping mechanism; 301. a support bar; 302. a support plate; 303. a chute; 304. a slider; 305. a clamping plate; 306. fixing screws; 4. a body simulating mechanism; 401. embedding blocks; 402. a simulated venous channel; 403. a feed inlet; 5. a sealing mechanism; 501. a sealing plate; 502. a spring shaft; 503. a support block; 6. a feeding mechanism; 601. a material storage box; 602. a support; 603. a water pump; 604. a feed inlet; 605. a top rod; 7. a lifting mechanism; 701. mounting a plate; 702. a telescopic rod; 703. a connecting plate; 704. a push rod motor; 705. a push rod; 8. an induction needle mechanism; 801. a sleeve; 802. a sealing block; 803. a first conductive sheet; 804. a second conductive sheet; 805. a spring; 806. a hose; 807. an experimental needle; 808. and an indicator light.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: please refer to fig. 1, a clinical venipuncture practice device, which comprises a mounting box 1, wherein a rotating mechanism 2 is installed in the mounting box 1, clamping mechanisms 3 are uniformly distributed on the rotating mechanism 2, a body simulating mechanism 4 is fixedly installed on the clamping mechanism 3, the body simulating mechanism 4 comprises an embedding block 401, the embedding block 401 is fixedly installed on the clamping mechanism 3, a vein simulating channel 402 is embedded in the embedding block 401, two sides of the vein simulating channel 402 are connected with a feed inlet 403, a sealing mechanism 5 is arranged in the feed inlet 403, a feeding mechanism 6 is installed at the top end of the front side of the rotating mechanism 2, the feeding mechanism 6 is installed on a lifting mechanism 7, the top end of the mounting box 1 is opened, and an induction needle mechanism 8 is arranged on the left side of the top end of the mounting box 1.
The sealing mechanism 5 comprises a sealing plate 501, the sealing plate 501 is installed in the feed inlet 403 through a spring shaft 502, the sealing plate 501 is matched with the feed inlet 403, a support block 503 is arranged on one side of the feed inlet 403, and the sealing plate 501 is placed on the support block 503.
The lifting mechanism 7 comprises a mounting plate 701, the mounting plate 701 is fixedly mounted on the front side of the top end of the rotating roller 201, connecting plates 703 are mounted on two sides of the mounting plate 701 through telescopic rods 702, the feeding mechanism 6 is connected with two sides of the connecting plates 703, a push rod motor 704 is mounted in the middle of the mounting plate 701, and the top end of a push rod 705 of the push rod motor 704 is connected with the connecting plates 703.
The feeding mechanism 6 comprises a storage box 601, the storage box 601 is fixedly mounted on a support 602 in the mounting box 1, a water pump 603 is connected to the top end of the storage box 601, feed openings 604 are symmetrically arranged at two ends of a connecting plate 703, a push rod 605 is arranged in the feed opening 604, the feed opening 604 on the left side of the connecting plate 703 is connected with the water pump 603, the feed opening 604 on the right side of the connecting plate 703 is connected with the storage box 601, and the feed openings 604 and the feed opening 403 are mutually fitted.
When the body imitation mechanism 4 moves to the top end of the mounting box 1, the push rod 705 is driven to ascend through the work of the push rod motor 704 in the lifting mechanism 7, the push rod 705 ascends to drive the connecting plate 703 to ascend, so that the feed ports 604 at the two ends of the connecting plate 703 are connected with the feed ports 403 at the two sides of the vein imitation channel 402 in the body imitation mechanism 4, meanwhile, the push rods 605 in the feed ports 604 are fixed on the sealing plate 501 in the sealing mechanism 5 in the feed ports 403, so that the sealing plate 501 is lifted upwards, the feed ports 403 are opened, the water pump 603 in the feed mechanism 6 works to pump out the liquid in the storage tank 601 to be introduced into the vein imitation channel 402 in the embedding block 401, the liquid flows in the vein imitation channel 402, and the simulation degree is improved.
The second embodiment: please refer to fig. 1-3, a clinical venipuncture practice device comprises a mounting box 1, a rotating mechanism 2 is installed in the mounting box 1, clamping mechanisms 3 are uniformly distributed on the rotating mechanism 2, a body simulating mechanism 4 is fixedly installed on the clamping mechanism 3, the body simulating mechanism 4 comprises an embedding block 401, the embedding block 401 is fixedly installed on the clamping mechanism 3, a vein simulating channel 402 is embedded in the embedding block 401, feed inlets 403 are connected to two sides of the vein simulating channel 402, a sealing mechanism 5 is arranged in the feed inlets 403, a feeding mechanism 6 is installed at the top end of the front side of the rotating mechanism 2, the feeding mechanism 6 is installed on a lifting mechanism 7, the top end of the mounting box 1 is open, and an induction needle mechanism 8 is arranged on the left side of the top end of the mounting box 1.
The rotating mechanism 2 comprises a rotating roller 201, clamping mechanisms 3 are uniformly distributed on the rotating roller 201, a driven wheel 203 is mounted on the rotating roller 201, driven grooves 204 are uniformly formed in the driven wheel 203, a driving motor 205 is arranged on one side of the driven wheel 203, a driving wheel 207 is mounted on a driving shaft 206 of the driving motor 205, a driving rod 202 is arranged on the driving wheel 207, and the driving rod 202 acts on the driven grooves 204.
The sealing mechanism 5 comprises a sealing plate 501, the sealing plate 501 is installed in the feed inlet 403 through a spring shaft 502, the sealing plate 501 is matched with the feed inlet 403, a support block 503 is arranged on one side of the feed inlet 403, and the sealing plate 501 is placed on the support block 503.
The lifting mechanism 7 comprises a mounting plate 701, the mounting plate 701 is fixedly mounted on the front side of the top end of the rotating roller 201, connecting plates 703 are mounted on two sides of the mounting plate 701 through telescopic rods 702, the feeding mechanism 6 is connected to two sides of the connecting plates 703, a push rod motor 704 is mounted in the middle of the mounting plate 701, and the top end of a push rod 705 of the push rod motor 704 is connected with the connecting plates 703.
The feeding mechanism 6 comprises a storage box 601, the storage box 601 is fixedly mounted on a support 602 in the mounting box 1, a water pump 603 is connected to the top end of the storage box 601, feed openings 604 are symmetrically arranged at two ends of a connecting plate 703, a push rod 605 is arranged in the feed opening 604, the feed opening 604 on the left side of the connecting plate 703 is connected with the water pump 603, the feed opening 604 on the right side of the connecting plate 703 is connected with the storage box 601, and the feed openings 604 and the feed opening 403 are mutually fitted.
The induction needle mechanism 8 comprises a sleeve 801, the sleeve 801 is arranged on the left side of the top end of the mounting box 1, a sealing block 802 is arranged in the sleeve 801 in a sliding mode, a first conducting sheet 803 is arranged on the left side of the sleeve 801, a second conducting sheet 804 is arranged behind the sealing block 802, a spring 805 is arranged between the sealing block 802 and the sleeve 801, the front end of the sleeve 801 is connected with an experiment needle 807 through a hose 806, and an indicator light 808 is arranged on the top end of the sleeve 801.
The working principle is as follows:
when the device works, when different body imitation mechanisms 4 are replaced, the driving motor 205 works to drive the driving wheel 207 to rotate, the driving wheel 207 rotates to enable the driving rod 202 on the driving wheel 207 to act on the driven groove 204 in the driven wheel 203, so that the driving rod 202 drives the driven wheel 203 to rotate, when the driving wheel 207 rotates for one circle, the driving rod 202 acts on the driven wheel 203 to drive the driven wheel 203 to rotate for 60 degrees, so that the rotating roller 201 is driven to rotate for 60 degrees, and further, the station can be quickly replaced, so that the next body imitation mechanism 4 moves to the opening position at the top end of the mounting box 1 to be used for training operation of a trainer, a plurality of different body imitation mechanisms 4 are arranged on the rotating roller 201 to enlarge the training range of the trainer, and the training efficiency and the quality of the trainer are improved;
When the body simulating mechanism 4 moves to the top end of the mounting box 1, a push rod motor 704 in the lifting mechanism 7 works to drive a push rod 705 to ascend, the push rod 705 ascends to drive a connecting plate 703 to ascend, so that feed inlets 604 at two ends of the connecting plate 703 are connected with feed inlets 403 at two sides of a vein simulating channel 402 in the body simulating mechanism 4, meanwhile, an ejector rod 605 in the feed inlet 604 is fixed on a sealing plate 501 in a sealing mechanism 5 in the feed inlet 403, the sealing plate 501 is lifted upwards, the feed inlet 403 is opened, a water pump 603 in the feed mechanism 6 works to pump liquid in a storage tank 601 out to be pumped into the vein simulating channel 402 in an embedding block 401, the liquid flows in the vein simulating channel 402, and the simulation degree is improved;
when an exerciser does exercise, the exerciser holds the experiment needle 807 to be pierced by aligning the vein simulating channel 402 in the embedding block 401, so that the experiment needle 807 is connected with the vein simulating channel 402, liquid in the vein simulating channel 402 can enter along the experiment needle 807 and enter the sleeve 801 through the hose 806, the liquid extrudes the sealing block 802 in the sleeve 801, the sealing block 802 moves towards the inside of the sleeve 801, the second conducting strip 804 at the rear side of the sealing block 802 is connected with the first conducting strip 803 in the sleeve 801, the indicator light 808 is lightened, the exercise is successful, then the experiment needle 807 is taken out, the sealing block 802 returns to the original position under the action of the spring 805, the indicator light 808 is extinguished, the next round of exercise is performed, and the exerciser can conveniently observe the exercise result visually;
When the copying mechanism 4 is replaced and maintained, the fixing screws 306 on the sliding blocks 304 in the sliding grooves 303 are loosened, the positions of the sliding blocks 304 in the sliding grooves 303 are moved, the clamping plates 305 on the sliding blocks 304 loosen the fixed clamping of the embedding blocks 401 in the copying mechanism 4, and therefore the embedding blocks 401 can be taken down from the supporting plates 302 in the clamping mechanism 3, and the embedding blocks 401 are convenient to replace and maintain.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a clinical venipuncture exercise equipment, includes mounting box (1), its characterized in that: the mounting box is characterized in that a rotating mechanism (2) is mounted in the mounting box (1), clamping mechanisms (3) are uniformly distributed on the rotating mechanism (2), a body simulating mechanism (4) is fixedly mounted on the clamping mechanism (3), the body simulating mechanism (4) comprises an embedding block (401), the embedding block (401) is fixedly mounted on the clamping mechanism (3), a vein simulating channel (402) is embedded in the embedding block (401), feed inlets (403) are connected to two sides of the vein simulating channel (402), a sealing mechanism (5) is arranged in each feed inlet (403), a feeding mechanism (6) is mounted at the top end of the front side of the rotating mechanism (2), the feeding mechanism (6) is mounted on a lifting mechanism (7), the mounting box (1) is open at the top end, and an induction needle mechanism (8) is arranged on the left side of the top end of the mounting box (1);
The rotating mechanism (2) comprises a rotating roller (201), clamping mechanisms (3) are uniformly distributed on the rotating roller (201), a driven wheel (203) is mounted on the rotating roller (201), driven grooves (204) are uniformly formed in the driven wheel (203), a driving motor (205) is arranged on one side of the driven wheel (203), a driving wheel (207) is mounted on a driving shaft (206) of the driving motor (205), a driving rod (202) is arranged on the driving wheel (207), and the driving rod (202) acts in the driven grooves (204);
the clamping mechanism (3) comprises supporting rods (301), the supporting rods (301) are uniformly distributed on the rotating roller (201), a supporting plate (302) is installed at the top end of each supporting rod (301), sliding grooves (303) are symmetrically formed in the supporting plate (302), sliding blocks (304) are symmetrically and slidably installed in the sliding grooves (303), a clamping plate (305) is arranged on each sliding block (304), the embedding blocks (401) are fixedly installed on the supporting plates (302) through the clamping plates (305), and fixing screws (306) are installed on the sliding blocks (304);
the sealing mechanism (5) comprises a sealing plate (501), the sealing plate (501) is installed in the feeding hole (403) through a spring shaft (502), the sealing plate (501) is matched with the feeding hole (403), a supporting block (503) is arranged on one side of the feeding hole (403), and the sealing plate (501) is placed on the supporting block (503);
elevating system (7) include mounting panel (701), and mounting panel (701) fixed mounting is in rotatory roller (201) top front side, and connecting plate (703) are installed through telescopic link (702) to mounting panel (701) both sides, and feeding mechanism (6) are connected to connecting plate (703) both sides, and mounting panel (701) mid-mounting has push rod motor (704), and push rod (705) top and connecting plate (703) of push rod motor (704) are connected.
2. A clinical venipuncture practice device as set forth in claim 1, wherein: feed mechanism (6) are including storage case (601), on support (602) of storage case (601) fixed mounting in mounting box (1), storage case (601) top is connected with water pump (603), connecting plate (703) both ends symmetry is provided with charge door (604), be provided with ejector pin (605) in charge door (604), left charge door (604) of connecting plate (703) are connected with water pump (603), charge door (604) on connecting plate (703) right side are connected with storage case (601), charge door (604) agree with each other with feed inlet (403).
3. A clinical venipuncture practice device as set forth in claim 2, wherein: response needle mechanism (8) include sleeve (801), sleeve (801) set up in mounting box (1) top left side, slidable mounting has sealed piece (802) in sleeve (801), sleeve (801) left side is provided with first conducting strip (803), be provided with second conducting strip (804) behind sealed piece (802), be provided with spring (805) between sealed piece (802) and sleeve (801), sleeve (801) front end passes through hose (806) and connects experiment needle (807), indicator (808) are installed to sleeve (801) top.
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| CN202110628648.3A CN113362668B (en) | 2021-06-07 | 2021-06-07 | Clinical venipuncture practice equipment |
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| CN202110628648.3A CN113362668B (en) | 2021-06-07 | 2021-06-07 | Clinical venipuncture practice equipment |
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|---|---|
| CN113362668A (en) | 2021-09-07 |
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